Updated on 2024/04/04

写真a

 
SHIMIZU Hirohiko
 
Organization
Graduate School of Science Professor
Graduate School
Graduate School of Science
Undergraduate School
School of Science
Title
Professor
Contact information
メールアドレス

Degree 1

  1. 博士(理学) ( 1992.1   京都大学 ) 

Research Areas 1

  1. Natural Science / Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics

Research History 12

  1. 名古屋大学・教授

    2012.1

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    Country:Japan

  2. Nagoya University

    2012.1

  3. Nagoya University   Graduate School of Science Division of Particle and Astrophysical Sciences Atomic Physics   Professor

    2012.1

  4. 高エネルギー加速器研究機構・教授

    2005.11 - 2011.12

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    Country:Japan

  5. High Energy Accelerator Research Organization

    2005.11 - 2011.12

  6. 理化学研究所・研究ユニットリーダー

    2003.10 - 2005.11

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    Country:Japan

  7. 理化学研究所・研究ユニットリーダー

    2003.10 - 2005.11

  8. 理化学研究所・研究ユニットリーダー

    2003.10 - 2005.11

  9. 理化学研究所・室長(副主任研究員)

    2000.8 - 2003.9

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    Country:Japan

  10. 理化学研究所・先任研究員

    2000.4 - 2000.7

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    Country:Japan

  11. 理化学研究所・研究員

    1995.7 - 2000.3

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    Country:Japan

  12. 高エネルギー物理学研究所・助手

    1992.4 - 1995.6

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    Country:Japan

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Education 4

  1. Kyoto University   Graduate School, Division of Natural Science   Department of Physics

    1998.4 - 1992.1

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    Country: Japan

    Notes: Doctor of Science

  2. Kyoto University   Graduate School, Division of Natural Science   Department of Physics

    1986.4 - 1988.3

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    Country: Japan

    Notes: Master of Science

  3. Kyoto University   Faculty of Science

    1982.4 - 1986.3

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    Country: Japan

    Notes: Bachelor of Science

  4. Kyoto University   Graduate School, Division of Natural Science

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    Country: Japan

Professional Memberships 4

  1. 日本物理学会

  2. 日本中性子科学会

  3. 日本中性子科学会

  4. 日本物理学会

Awards 3

  1. 日本中性子科学会第2回技術賞

    2004.12   日本中性子科学会  

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    Country:Japan

  2. 日本物理学会第7回論文賞

    2002.3   日本物理学会  

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    Country:Japan

  3. 第60回注目発明

    2001.4   文部科学省  

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    Country:Japan

 

Papers 462

  1. Development of Neutron Interferometer Using Multilayer Mirrors and Measurements of Neutron-Nuclear Scattering Length with Pulsed Neutron Source

    Fujiie T., Hino M., Hosobata T., Ichikawa G., Kitaguchi M., Mishima K., Seki Y., Shimizu H.M., Yamagata Y.

    Physical Review Letters   Vol. 132 ( 2 )   2024.1

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    Publisher:Physical Review Letters  

    This study entailed the successful deployment of a novel neutron interferometer that utilizes multilayer mirrors. The apparatus facilitates a precise evaluation of the wavelength dependence of interference fringes utilizing a pulsed neutron source. Our interferometer achieved an impressive precision of 0.02 rad within a 20-min recording time. Compared to systems using silicon crystals, the measurement sensitivity was maintained even when using a simplified disturbance suppressor. By segregating beam paths entirely, we achieved successful measurements of neutron-nuclear scattering lengths across various samples. The values measured for Si, Al, and Ti were in agreement with those found in the literature, while V showed a disparity of 45%. This discrepancy may be attributable to impurities encountered in previous investigations. The accuracy of measurements can be enhanced further by mitigating systematic uncertainties that are associated with neutron wavelength, sample impurity, and thickness. This novel neutron interferometer enables us to measure fundamental parameters, such as the neutron-nuclear scattering length of materials, with a precision that surpasses that of conventional interferometers.

    DOI: 10.1103/PhysRevLett.132.023402

    Scopus

  2. EUSO-SPB1 mission and science

    Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Pernas M.A., Bachmann R., Bacholle S., Bagheri M., Bakiri M., Baláz J., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., Cummings A., de Castro Gónzalez A., de la Taille C., del Peral L., Desiato J., Damian A.D., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Finch W., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J., Golzio A., Gorodetzky P., Gregg R., Green A.

    Astroparticle Physics   Vol. 154   2024.1

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    The Extreme Universe Space Observatory on a Super Pressure Balloon 1 (EUSO-SPB1) was launched in 2017 April from Wanaka, New Zealand. The plan of this mission of opportunity on a NASA super pressure balloon test flight was to circle the southern hemisphere. The primary scientific goal was to make the first observations of ultra-high-energy cosmic-ray extensive air showers (EASs) by looking down on the atmosphere with an ultraviolet (UV) fluorescence telescope from suborbital altitude (33 km). After 12 days and 4 h aloft, the flight was terminated prematurely in the Pacific Ocean. Before the flight, the instrument was tested extensively in the West Desert of Utah, USA, with UV point sources and lasers. The test results indicated that the instrument had sensitivity to EASs of ⪆3 EeV. Simulations of the telescope system, telescope on time, and realized flight trajectory predicted an observation of about 1 event assuming clear sky conditions. The effects of high clouds were estimated to reduce this value by approximately a factor of 2. A manual search and a machine-learning-based search did not find any EAS signals in these data. Here we review the EUSO-SPB1 instrument and flight and the EAS search.

    DOI: 10.1016/j.astropartphys.2023.102891

    Scopus

  3. Improved Measurements of Muonic Helium Ground-State Hyperfine Structure at a Near-Zero Magnetic Field

    Strasser P., Fukumura S., Iwai R., Kanda S., Kawamura S., Kitaguchi M., Nishimura S., Seo S., Shimizu H.M., Shimomura K., Tada H., Torii H.A.

    Physical Review Letters   Vol. 131 ( 25 )   2023.12

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    Muonic helium atom hyperfine structure (HFS) measurements are a sensitive tool to test the three-body atomic system and bound-state quantum electrodynamics theory, and determine fundamental constants of the negative muon magnetic moment and mass. The world's most intense pulsed negative muon beam at the Muon Science Facility of the Japan Proton Accelerator Research Complex allows improvement of previous measurements and testing further CPT invariance by comparing the magnetic moments and masses of positive and negative muons (second-generation leptons). We report new ground-state HFS measurements of muonic helium-4 atoms at a near-zero magnetic field, performed for the first time using a small admixture of CH4 as an electron donor to form neutral muonic helium atoms efficiently. Our analysis gives Δν=4464.980(20) MHz (4.5 ppm), which is more precise than both previous measurements at weak and high fields. The muonium ground-state HFS was also measured under the same conditions to investigate the isotopic effect on the frequency shift due to the gas density dependence in He with CH4 admixture and compared with previous studies. Muonium and muonic helium can be regarded as light and heavy hydrogen isotopes with an isotopic mass ratio of 36. No isotopic effect was observed within the current experimental precision.

    DOI: 10.1103/PhysRevLett.131.253003

    Scopus

  4. Demonstration of simultaneous measurement of the spin rotation of dynamically-diffracted neutrons from multiple crystal planes using pulsed neutrons

    Itoh S., Fukumura S., Fujiie T., Kitaguchi M., Shimizu H.M.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 1057   2023.12

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    The strong electric field inside a crystal interacting with dynamically-diffracted neutrons by a single crystal can be used in experiments to search for the electric dipole moment of neutrons. This intra-crystal electric field can be evaluated from the neutron spin rotation derived from the dynamical diffraction. Neutron spin rotations from multiple crystal planes were observed simultaneously using pulsed neutrons with a single SiO2 crystal. The spin rotation of dynamically-diffracted neutrons from (110)-crystal plane with the symmetric Laue configuration was consistent with the spin rotation calculated from the intra-crystal electric field reported by the previous experiments. In addition, the spin rotation was also studied for the (02̄1)-, (011)- and (111̄)-crystal planes, which are asymmetric Laue configurations. There have been no previous studies of spin rotations or intra-crystal electric fields on these crystal planes. The experimental results suggest that spin rotation can occur even on crystal planes where it was previously thought that the spin rotation could not occur due to zero intra-crystal electric field. This information is important to study the sensitivity and the systematic uncertainties in nEDM search experiments by crystal diffractions.

    DOI: 10.1016/j.nima.2023.168734

    Scopus

  5. Diffuse scattering model of ultracold neutrons on wavy surfaces

    Imajo S., Akatsuka H., Hatanaka K., Higuchi T., Ichikawa G., Kawasaki S., Kitaguchi M., Mammei R., Matsumiya R., Mishima K., Picker R., Schreyer W., Shimizu H.M.

    Physical Review C   Vol. 108 ( 3 )   2023.9

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    Metal tubes plated with nickel-phosphorus are used in many fundamental physics experiments that use ultracold neutrons (UCN) because of their ease of fabrication. These tubes are usually polished to an average roughness of 25-150nm. However, there is no scattering model that accurately describes UCN scattering on such a rough guide surface with a mean-square roughness greater than 5nm. We, therefore, developed a scattering model for UCN in which scattering from random surface waviness with a size larger than the UCN wavelength is described by a microfacet Bidirectional Reflectance Distribution Function model (mf-BRDF model), and scattering from smaller structures by the Lambert's cosine law (Lambert model). For the surface waviness, we used the statistical distribution of surface slope measured by an atomic force microscope on a sample piece of guide tube as an input of the model. This model was used to describe UCN transmission experiments conducted at the pulsed UCN source in J-PARC. In these experiments, a UCN beam collimated to a divergence angle smaller than ±6° was directed into a guide tube with a mean-square roughness of 6.4 to 17nm at an oblique angle, and the UCN transport performance and its time-of-flight distribution were measured while changing the angle of incidence. The mf-BRDF model combined with the Lambert model with scattering probability pL=0.039±0.003 reproduced the experimental results well. We have thus established a procedure to evaluate the characteristics of UCN guide tubes with a surface roughness of approximately 10nm.

    DOI: 10.1103/PhysRevC.108.034605

    Scopus

  6. Current status of the polarized La target development for T-violation search with slow neutron

    Ide I., Fujita M., Hotta H., Iinuma M., Ikeda Y., Ito Y., Iwata T., Kitaguchi M., Kohri H., Miura D., Miyachi Y., Okudaira T., Shimizu H.M., Takanashi Y., Yosoi M.

    Proceedings of Science   Vol. 433   2023.8

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    We are addressing the development of a polarized lanthanum (139La) target by applying a standard dynamic nuclear polarization (DNP) technique to a single crystal of lanthanum aluminate (LaAlO3) doped with neodymium ions (Nd3+), which is very attractive to search for violating effects of the time-reversal invariance with neutrons. The use of the LaAlO3 crystals as target material is very crucial to extend the spin-lattice relaxation time (T1) through the optimization of the Nd3+ concentration. We have almost established a method for precise control of the Nd3+ amount and this method has allowed us to grow the crystal with 0.01 mol% concentration differently from the 0.05 mol% reached before. Simple DNP experiments using a single-shot dewar at 1.3 K and 2.3 T allowed the evaluation of the T1 and the maximum polarization of these crystals. By that we have found that the 0.01 mol% concentration is the best one among the crystals tested in the past. Both, T1 and the maximum polarization of the 0.01 mol% crystal, have not been exactly obtained because of the long relaxation time, Thus, the preparation of a new DNP system is in progress toward DNP experiments for long-term measurement.

    Scopus

  7. Angular distribution of γ rays from a neutron-induced p -wave resonance of Xe 132

    Okudaira T., Tani Y., Endo S., Doskow J., Fujioka H., Hirota K., Kameda K., Kimura A., Kitaguchi M., Luxnat M., Sakai K., Schaper D.C., Shima T., Shimizu H.M., Snow W.M., Takada S., Yamamoto T., Yoshikawa H., Yoshioka T.

    Physical Review C   Vol. 107 ( 5 )   2023.5

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    A neutron-energy dependent angular distribution was measured for individual γ rays from the 3.2 eV p-wave resonance of Xe131+n, that shows enhanced parity violation owing to a mixing between s- and p-wave amplitudes. The γ-ray transitions from the p-wave resonance were identified, and the angular distribution with respect to the neutron momentum was evaluated as a function of the neutron energy for 7132 keV γ rays, which correspond to a transition to the 1807 keV excited state of Xe132. The angular distribution is considered to originate from the interference between s- and p-wave amplitudes, and will provide a basis for a quantitative understanding of the enhancement mechanism of the fundamental parity violation in compound nuclei.

    DOI: 10.1103/PhysRevC.107.054602

    Scopus

  8. Displacement-noise-free interferometeric gravitational-wave detector using unidirectional neutrons with four speeds

    Iwaguchi S., Nishizawa A., Chen Y., Kawasaki Y., Ishikawa T., Kitaguchi M., Yamagata Y., Wu B., Shimizu R., Umemura K., Tsuji K., Shimizu H., Michimura Y., Kawamura S.

    Physics Letters, Section A: General, Atomic and Solid State Physics   Vol. 458   2023.1

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    For further gravitational wave (GW) detections, it is significant to invent a technique to reduce all kinds of mirror displacement noise dominant at low frequencies for ground-based detectors. The neutron displacement-noise-free interferometer (DFI) is one of the tools to reduce all the mirror displacement noise at lower frequencies. In this paper, we describe a further simplified configuration of a neutron DFI in terms of neutron incidence direction. In the new configuration, neutrons enter the interferometer with unidirectional incidence at four speeds as opposed to two bidirectional incidences of opposite directions at two speeds as reported previously. This simplification of the neutron DFI is significant for proof-of-principle experiments.

    DOI: 10.1016/j.physleta.2022.128581

    Web of Science

    Scopus

  9. Status of the new muonic helium atom HFS measurements at J-PARC MUSE

    Strasser P., Fukumura S., Ino T., Iwai R., Kanda S., Kawamura S., Kitaguchi M., Nishimura S., Oku T., Okudaira T., Seo S., Shimizu H.M., Shimizu K., Shimomura K., Tada H., Tanaka T., Torii H.A., Yamauchi H., Yasuda H.

    Journal of Physics: Conference Series   Vol. 2462 ( 1 )   2023

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    Measurements of the muonic helium atom hyperfine structure (HFS) are a sensitive tool to test the theory of three-body atomic systems and bound-state quantum electrodynamics (QED) and to determine fundamental constants of the negative muon magnetic moment and mass. The world's most intense pulsed negative muon beam at J-PARC MUSE brings an opportunity to improve previous measurements and test further CPT invariance by comparing the magnetic moments and masses of positive and negative muons. Test measurements at D-line are now in progress utilizing MuSEUM apparatus at zero field. The first results already have better accuracy than previous measurements in the 1980s. Also, the investigation of a new experimental approach to improve HFS measurements by repolarizing muonic helium atoms using a spin-exchange optical pumping (SEOP) technique was started. If successful, this would drastically improve the measurement accuracy.

    DOI: 10.1088/1742-6596/2462/1/012023

    Scopus

  10. Measurement of the transverse asymmetry of γ rays in the Sn 117 (n,γ) Sn 118 reaction

    Endo S., Okudaira T., Abe R., Fujioka H., Hirota K., Kimura A., Kitaguchi M., Oku T., Sakai K., Shima T., Shimizu H.M., Takada S., Takahashi S., Yamamoto T., Yoshikawa H., Yoshioka T.

    Physical Review C   Vol. 106 ( 6 )   2022.12

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    Largely enhanced parity-violating effects observed in compound resonances induced by epithermal neutrons are currently attributed to the mixing of parity-unfavored partial amplitudes in the entrance channel of the compound states. Furthermore, it is proposed that the same mechanism that enhances the parity violation also enhances the breaking of time-reversal invariance in the compound nucleus. The entrance-channel mixing induces energy-dependent spin-angular correlations of individual γ rays emitted from the compound nuclear state. For a detailed study of the mixing model, the γ-ray yield in the reaction of Sn117(n,γ)Sn118 was measured using a pulsed beam of polarized epithermal neutrons and Ge detectors. An angular dependence of asymmetric γ-ray yields for the orientation of the neutron polarization was observed.

    DOI: 10.1103/PhysRevC.106.064601

    Web of Science

    Scopus

  11. Displacement-noise-free neutron interferometer for gravitational wave detection using a single Mach-Zehnder configuration

    Iwaguchi S., Nishizawa A., Chen Y., Kawasaki Y., Kitaguchi M., Morimoto T., Ishikawa T., Wu B., Watanabe I., Shimizu R., Shimizu H., Michimura Y., Kawamura S.

    Physics Letters, Section A: General, Atomic and Solid State Physics   Vol. 441   2022.7

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    The improvement of sensitivity to gravitational waves (GWs) at lower frequencies is still challenging on account of displacement noise. One of the solutions is the neutron displacement-noise-free interferometer (DFI). We focus on a simplification of the detector configuration by taking advantage of the ability to adjust the neutron speed depending on the configuration. The new configuration consists of two beamsplitters and two mirrors, which constitute a single Mach-Zehnder interferometer (MZI). It is simpler than the configuration with two MZIs in previous research. All displacement noise of mirrors and beamsplitters can be canceled in the frequency domain. This cancellation can be explained intuitively using a phasor diagram.

    DOI: 10.1016/j.physleta.2022.128150

    Web of Science

    Scopus

  12. A novel nuclear emulsion detector for measurement of quantum states of ultracold neutrons in the Earth's gravitational field

    Muto N., Abele H., Ariga T., Bosina J., Hino M., Hirota K., Ichikawa G., Jenke T., Kawahara H., Kawasaki S., Kitaguchi M., Micko J., Mishima K., Naganawa N., Nakamura M., Roccia S., Sato O., Sedmik R.I.P., Seki Y., Shimizu H.M., Tada S., Umemoto A.

    Journal of Instrumentation   Vol. 17 ( 7 )   2022.7

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    Hypothetical short-range interactions could be detected by measuring the wavefunctions of gravitationally bound ultracold neutrons (UCNs) on a mirror in the Earth's gravitational field. Searches for them with higher sensitivity require detectors with higher spatial resolution. We developed and have been improving an UCN detector with a high spatial resolution, which consists of a Si substrate, a thin converter layer including 10B4C, and a layer of fine-grained nuclear emulsion. Its resolution was estimated to be less than 100 nm by fitting tracks of either 7Li nuclei or α-particles, which were created when neutrons interacted with the 10B4C layer. For actual measurements of the spatial distributions, the following two improvements were made. The first improvement was to establish a method to align microscopic images with high accuracy within a wide region of 65 mm × 0.2 mm. We created reference marks of 1 μm and 5 μm diameter with an interval of 50 μm and 500 μm, respectively, on the Si substrate by electron beam lithography and realized a position accuracy of less than 30 nm. The second improvement was to build a holder for the detector that could maintain the atmospheric pressure around the nuclear emulsion to utilize it under a vacuum during exposure to UCNs. The intrinsic resolution of the improved detector was estimated to be better than 0.56(8) μm by evaluating the blur of a transmission image of a gadolinium grating taken by cold neutrons. The evaluation included the precision of the gadolinium grating. A test exposure was conducted to obtain the spatial distribution of UCNs in the quantized states on a mirror in the Earth's gravitational field. The distribution was obtained, fitted with the theoretical curve, and turned out to be reasonable for UCNs in quantized states when we considered a blurring of 6.9 μm. The blurring was well explained as a result of neutron refraction due to the large surface roughness on the upstream side of the Si substrate. By using a double-side-polished Si substrate, a resolution of less than 0.56 μm is expected to be achieved for UCNs.

    DOI: 10.1088/1748-0221/17/07/P07014

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  13. Neutron displacement noise-free interferometer for gravitational-wave detection

    Nishizawa A., Iwaguchi S., Chen Y., Morimoto T., Ishikawa T., Wu B., Watanabe I., Kawasaki Y., Shimizu R., Shimizu H., Kitaguchi M., Michimura Y., Kawamura S.

    Physical Review D   Vol. 105 ( 12 )   2022.6

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    An interferometer design that cancels all displacement noises of its test masses and maintains a gravitational-wave (GW) signal by combining multiple detector signals is called a displacement noise-free interferometer (DFI). The idea has been considered previously for a laser interferometer. However, a limitation of a laser DFI is that its sensitive frequency band is too high for astrophysical GW sources, ∼105 Hz even for a kilometer-sized interferometer. To circumvent this limitation, in this paper, we propose a neutron DFI, in which neutrons are used instead of light. Since neutrons have velocities much lower than the speed of light, the sensitive frequency band of a neutron DFI can be lowered down to ∼10-1 Hz. Therefore, a neutron DFI can be utilized for detecting GWs that are inaccessible by an ordinary laser interferometer on the ground.

    DOI: 10.1103/PhysRevD.105.124017

    Web of Science

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  14. Improvement of systematic uncertainties for the neutron lifetime experiment at J-PARC

    Mogi T., Hasegawa T., Hirota K., Ichikawa G., Ieki S., Ino T., Iwashita Y., Kajiwara S., Kato Y., Kitaguchi M., Kitahara R., Koga J., Makise S., Matsuzaki S., Mishima K., Morikawa K., Nagakura N., Okabe H., Otono H., Seki Y., Sekiba D., Shima T., Shimizu H.E., Shimizu H.M., Sugisawa Y., Sumi N., Sumino H., Tanabe T., Tomita T., Uehara H., Yamada T., Yamashita S., Yano K., Yoshioka T.

    Proceedings of Science   Vol. 380   2022.5

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    The neutron lifetime is one of the important parameters for particle physics and astrophysics. There is a 4.6σ (9.5 s) discrepancy between the results of the two typical methods. To solve this discrepancy, a new neutron lifetime experiment with a different method is in progress at J-PARC, and this experiment published the first result in 2020 of 898 ± 10(stat.) + 15/−18(syst.) s. We have performed improvements to reduce systematic uncertainties towards 1 s accuracy. The methods to measure the amount of 3He injected and in the working gas have been upgraded, and a new model for the space charge effect in the Monte Carlo simulation has been implemented.

    Scopus

  15. Neutron lifetime experiment with pulsed cold neutrons at J-PARC

    Ichikawa G., Fuwa Y., Hasegawa T., Hino M., Hirota K., Ino T., Iwashita Y., Kitaguchi M., Koga J., Matsuzaki S., Mishima K., Mogi T., Morikawa K., Okabe H., Otono H., Seki Y., Sekiba D., Shima T., Shimizu H., Shimizu H., Sumi N., Sumino H., Yamashita S., Yano K., Yoshioka T.

    Proceedings of Science   Vol. 380   2022.5

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    A free neutron decays in a lifetime of about 880 s. Although the neutron lifetime is an important parameter in modern physics, there is a 4.6σ (9.5 s) discrepancy between the experimental results of two typical methods: the beam method and the storage method. We are carrying out a new experimental method to measure the neutron lifetime using a pulsed neutron beam at J-PARC MLF BL05 to determine the cause of the discrepancy, whether overlooked systematic uncertainties or new physics. A review of our experiment including the first physics result with acquired data during 2014 - 2016 and the status using new neutron optics are presented here.

    Scopus

  16. Angular distribution of γ rays from the p -wave resonance of Sn 118

    Koga J., Takada S., Endo S., Fujioka H., Hirota K., Ishizaki K., Kimura A., Kitaguchi M., Niinomi Y., Okudaira T., Sakai K., Shima T., Shimizu H.M., Tani Y., Yamamoto T., Yoshikawa H., Yoshioka T.

    Physical Review C   Vol. 105 ( 5 )   2022.5

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    Publisher:Physical Review C  

    The neutron energy-dependent angular distribution of γ rays from the Sn117(n,γ) reaction was measured with germanium detectors and a pulsed neutron beam. The angular distribution was clearly observed in γ-ray emissions with an energy of 9327 keV which corresponds to the transition from a neutron resonance of Sn117+n to the ground state of Sn118. The angular distribution causes an angular-dependent asymmetric resonance shape. An asymmetry ALH was defined as (NL-NH)/(NL+NH), where NL and NH are integrated values for lower- and higher-energy regions of a neutron resonance, respectively. We found that the ALH has the angular dependence of (Acosθγ+B), where θγ is the γ-ray emission angle with respect to the incident neutron momentum, with A=0.394±0.073 and B=0.118±0.029 in the 1.33 eV p-wave resonance.

    DOI: 10.1103/PhysRevC.105.054615

    Web of Science

    Scopus

  17. A study on UV emission from clouds with Mini-EUSO

    Golzio A., Battisti M., Bertaina M., Bolmgren K., Cambiè G., Casolino M., Cassardo C., Cremonini R., Ferrarese S., Fuglesang C., Manfrin M., Marcelli L., Piotrowski L., Shinozaki K., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eliasson L., Eser J., Fenu F., Fernández-González S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J.

    Proceedings of Science   Vol. 395   2022.3

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    Mini-EUSO is the first mission of the JEM-EUSO program located on the International Space Station. One of the main goals of the mission is to provide valuable scientific data in view of future large missions devoted to study Ultra-High Energy Cosmic Rays (UHECRs) from space by exploiting the fluorescence emission generated by Extensive Air Showers (EAS) developing in the atmosphere. A space mission like Mini-EUSO experiences continuous changes in atmospheric conditions, including the cloud presence. The influence of clouds on space-based observation is, therefore, an important topic to investigate as it might alter the instantaneous exposure for EAS detection or deteriorate the quality of the EAS images with consequences on the reconstructed EAS parameters. For this purpose, JEM-EUSO is planning to have an IR camera and a lidar as part of its Atmospheric Monitoring System. At the same time, it would be extremely beneficial if the UV camera itself would be able to detect the presence of clouds, at least in some specific conditions. For this reason, we analyze a few case studies by comparing the pixel count rates from Mini-EUSO during orbits with the cloud cover (as cloud fraction). This quantity is retrieved from the Global Forecast System (GFS) model at different height levels over the Mini-EUSO trajectory. The results of this analysis are reported.

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  18. UCIRC2: EUSO-SPB2’s Infrared Cloud Monitor

    Diesing R., Bukowski A., Friedlander N., Miller A., Meyer S., Olinto A.V., Abdellaoui G., Abe S., Adams J.H., Ahriche A., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bacholle S., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A., Benmessai K., Bertaina M., Bertone P., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Cerny K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Engel R., Eliasson L., Eser J., Fenu F., Fernández-González S., Ferrarese S., Fillapatos G., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G., Gascón E., Genci J., Golzio A.

    Proceedings of Science   Vol. 395   2022.3

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    The second generation of the Extreme Universe Space Observatory on a Super Pressure Balloon (EUSO-SPB2) is a balloon instrument for the detection of ultra high energy cosmic rays (UHECRs) with energies above 1 EeV and very high energy neutrinos with energies above 10 PeV. EUSOSPB2 consists of two telescopes: a fluorescence telescope pointed downward for the detection of UHECRs and a Cherenkov telescope pointed towards the limb for the detection of tau lepton-induced showers produced by up-going tau neutrinos and background signals below the limb. Clouds inside the field of view of these telescopes reduce EUSO-SPB2’s geometric aperture, in particular that of the fluorescence telescope. For this reason, cloud coverage and cloud-top altitude within the field of view of the fluorescence telescope must be monitored throughout data-taking. The University of Chicago Infrared Camera (UCIRC2) will monitor these clouds using two infrared cameras with response centered at wavelengths 10 and 12 microns. By capturing images at wavelengths spanning the cloud thermal emission peak, UCIRC2 will measure cloud color-temperatures and thus cloud-top altitudes. In this contribution, we provide an overview of UCIRC2, including an update on its construction and a discussion of the techniques used to calibrate the instrument.

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  19. Towards observations of nuclearites in Mini-EUSO

    Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J., Golzio A., González Alvarado C., Gorodetzky P., Green A., Guarino F., Guépin C., Guzmán A.

    Proceedings of Science   Vol. 395   2022.3

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    Mini-EUSO is a small orbital telescope with a field of view of 44◦ × 44◦, observing the night-time Earth mostly in 320-420 nm band. Its time resolution spanning from microseconds (triggered) to milliseconds (untriggered) and more than 300 × 300 km of the ground covered, already allowed it to register thousands of meteors. Such detections make the telescope a suitable tool in the search for hypothetical heavy compact objects, which would leave trails of light in the atmosphere due to their high density and speed. The most prominent example are the nuclearites – hypothetical lumps of strange quark matter that could be stabler and denser than the nuclear matter. In this paper, we show potential limits on the flux of nuclearites after collecting 42 hours of observations data.

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  20. The Mini-EUSO telescope on board the International Space Station: Launch and first results

    Casolino M., Barghini D., Battisti M., Belov A., Bertaina M., Bisconti F., Blaksley C., Bolmgren K., Cafagna F., Cambiè G., Capel F., Ebisuzaki T., Fenu F., Franceschi A., Fuglesang C., Golzio A., Gorodetzki P., Kajino F., Kasuga H., Klimov P., Kungel V., Manfrin M., Marcelli L., Marszał W., Miyamoto H., Mignone M., Napolitano T., Osteria G., Parizot E., Picozza P., Piotrowski L.W., Plebaniak Z., Prévôt G., Reali E., Ricci M., Sakaki N., Shinozaki K., Szabelski J., Takizawa Y., Wada S., Wiencke L., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertone P.F., Biermann P.L., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Campana D., Capdevielle J.N., Caramete A., Caramete L., Carlson P., Caruso R., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P.

    Proceedings of Science   Vol. 395   2022.3

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    Mini-EUSO is a telescope launched on board the International Space Station in 2019 and currently located in the Russian section of the station. Main scientific objectives of the mission are the search for nuclearites and Strange Quark Matter, the study of atmospheric phenomena such as Transient Luminous Events, meteors and meteoroids, the observation of sea bioluminescence and of artificial satellites and man-made space debris. It is also capable of observing Extensive Air Showers generated by Ultra-High Energy Cosmic Rays with an energy above 1021 eV and detect artificial showers generated with lasers from the ground. Mini-EUSO can map the night-time Earth in the UV range (290 - 430 nm), with a spatial resolution of about 6.3 km and a temporal resolution of 2.5 μs, observing our planet through a nadir-facing UV-transparent window in the Russian Zvezda module. The instrument, launched on 2019/08/22 from the Baikonur cosmodrome, is based on an optical system employing two Fresnel lenses and a focal surface composed of 36 Multi-Anode Photomultiplier tubes, 64 channels each, for a total of 2304 channels with single photon counting sensitivity and an overall field of view of 44◦. Mini-EUSO also contains two ancillary cameras to complement measurements in the near infrared and visible ranges. In this paper we describe the detector and present the various phenomena observed in the first year of operation.

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  21. The Fluorescence Telescope on board EUSO-SPB2 for the detection of Ultra High Energy Cosmic Rays

    Osteria G., Adams J., Battisti M., Belov A., Bertaina M., Bisconti F., Cafagna F., Campana D., Caruso R., Casolino M., Christi M., Ebisuzaki T., Eser J., Fenu F., Filippatos G., Fornaro C., Guarino F., Klimov P., Kungel V., Mackovjak S., Mese M., Miller M., Miyamoto H., Olinto A., Onel Y., Parizot E., Pech M., Perfetto F., Piotrowski L., Prevot G., Reardon P., Ricci M., Sarazin F., Scotti V., Shinozaki K., Shovanec P., Szabelski J., Takizawa Y., Valore L., Wiencke L., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertone P.F., Biermann P.L., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cambié G., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A.

    Proceedings of Science   Vol. 395   2022.3

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    The Fluorescence Telescope is one of the two telescopes on board the Extreme Universe Space Observatory on a Super Pressure Balloon II (EUSO-SPB2). EUSO-SPB2 is an ultra-long-duration balloon mission that aims at the detection of Ultra High Energy Cosmic Rays (UHECR) via the fluorescence technique (using a Fluorescence Telescope) and of Ultra High Energy (UHE) neutrinos via Cherenkov emission (using a Cherenkov Telescope). The mission is planned to fly in 2023 and is a precursor of the Probe of Extreme Multi-Messenger Astrophysics (POEMMA). The Fluorescence Telescope is a second generation instrument preceded by the telescopes flown on the EUSO-Balloon and EUSO-SPB1 missions. It features Schmidt optics and has a 1-meter diameter aperture. The focal surface of the telescope is equipped with a 6912-pixel Multi Anode Photo Multipliers (MAPMT) camera covering a 37.4 x 11.4 degree Field of Regard. Such a big Field of Regard, together with a flight target duration of up to 100 days, would allow, for the first time from suborbital altitudes, detection of UHECR fluorescence tracks. This contribution will provide an overview of the instrument including the current status of the telescope development.

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  22. Study of the calibration method using the stars measured by the EUSO-TA telescope

    Plebaniak Z., Przybylak M., Barghini D., Bertaina M., Bisconti F., Casolino M., Gardiol D., Lipiec R., Piotrowski L.W., Shinozaki K., Szabelski J., Abdellaoui G., Abe S., Adams J.H., Ahriche A., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bacholle S., Baláz J., Bakiri M., Yashin I.V., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A., Benmessai K., Yonetoku D., Bertone P., Biermann P.L., Yoshida S., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambie G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Yano H., Cassardo C., Castellina A., Catalano O., Cellino A., Cerny K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Engel R., Eliasson L., Eser J., Fenu F., Fernández-González S., Ferrarese S., Fillapatos G., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E.

    Proceedings of Science   Vol. 395   2022.3

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    EUSO-TA is a ground-based experiment, placed at Black Rock Mesa of the Telescope Array site as a part of the JEM-EUSO (Joint Experiment Missions for the Extreme Universe Space Observatory) program. The UV fluorescence imaging telescope with a field of view of about 10.6◦ x 10.6◦ consisting of 2304 pixels (36 Multi-Anode Photomultipliers, 64 pixels each) works with 2.5-microsecond time resolution. An experimental setup with two Fresnel lenses allows for measurements of Ultra High Energy Cosmic Rays in parallel with the TA experiment as well as the other sources like flashes of lightning, artificial signals from UV calibration lasers, meteors and stars. Stars increase counts on pixels while crossing the field of view as the point-like sources. In this work, we discuss the method for calibration of EUSO fluorescence detectors based on signals from stars registered by the EUSO-TA experiment during several campaigns. As the star position is known, the analysis of signals gives an opportunity to determine the pointing accuracy of the detector. This can be applied to space-borne or balloon-borne EUSO missions. We describe in details the method of the analysis which provides information about detector parameters like the shape of the point spread function and is the way to perform absolute calibration of EUSO cameras.

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  23. Simulation studies for the Mini-EUSO detector

    Miyamoto H., Fenu F., Barghini D., Battisti M., Belov A., Bertaina M., Bisconti F., Bonino R., Cambie G., Capel F., Casolino M., Churilo I., Ebisuzaki T., Fuglesang C., Golzio A., Gorodetzky P., Kajino F., Klimov P., Manfrin M., Marcelli L., Marszał W., Mignone M., Parizot E., Picozza P., Piotrowski L.W., Plebaniak Z., Prévôt G., Reali E., Ricci M., Sakaki N., Shinozaki K., Suino G., Szabelski J., Takizawa Y., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertone P.F., Biermann P.L., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Campana D., Capdevielle J.N., Caramete A., Caramete L., Carlson P., Caruso R., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A.

    Proceedings of Science   Vol. 395   2022.3

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    Mini-EUSO is a mission of the JEM-EUSO program flying onboard the International Space Station since August 2019. Since the first data acquisition in October 2019, more than 35 sessions have been performed for a total of 52 hours of observations. The detector has been observing Earth at night-time in the UV range and detected a wide variety of transient sources all of which have been modeled through Monte Carlo simulations. Mini-EUSO is also capable of detecting meteors and potentially space debris and we performed simulations for such events to estimate their impact on future missions for cosmic ray science from space. We show here examples of the simulation work done in this framework to analyze the Mini-EUSO data. The expected response of Mini-EUSO with respect to ultra high energy cosmic ray showers has been studied. The efficiency curve of Mini-EUSO as a function of primary energy has been estimated and the energy threshold for Cosmic Rays has been placed to be above 1021 eV. We compared the morphology of several transient events detected during the mission with cosmic ray simulations and excluded that they can be due to cosmic ray showers. To validate the energy threshold of the detector, a system of ground based flashers is being used for end-to-end calibration purposes. We therefore implemented a parameterization of such flashers into the JEM-EUSO simulation framework and studied the response of the detector with respect to such sources.

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  24. Science and mission status of EUSO-SPB2

    Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eliasson L., Eser J., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J., Golzio A., González Alvarado C., Gorodetzky P., Green A., Guarino F., Guépin C., Guzmán A.

    Proceedings of Science   Vol. 395   2022.3

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    The Extreme Universe Space Observatory on a Super Pressure Balloon II (EUSO-SPB2) is a second generation stratospheric balloon instrument for the detection of Ultra High Energy Cosmic Rays (UHECRs, E > 1 EeV) via the fluorescence technique and of Very High Energy (VHE, E > 10 PeV) neutrinos via Cherenkov emission. EUSO-SPB2 is a pathfinder mission for instruments like the proposed Probe Of Extreme Multi-Messenger Astrophysics (POEMMA). The purpose of such a space-based observatory is to measure UHECRs and UHE neutrinos with high statistics and uniform exposure. EUSO-SPB2 is designed with two Schmidt telescopes, each optimized for their respective observational goals. The Fluorescence Telescope looks at the nadir to measure the fluorescence emission from UHECR-induced extensive air shower (EAS), while the Cherenkov Telescope is optimized for fast signals (∼10 ns) and points near the Earth's limb. This allows for the measurement of Cherenkov light from EAS caused by Earth skimming VHE neutrinos if pointed slightly below the limb or from UHECRs if observing slightly above. The expected launch date of EUSO-SPB2 is Spring 2023 from Wanaka, NZ with target duration of up to 100 days. Such a flight would provide thousands of VHECR Cherenkov signals in addition to tens of UHECR fluorescence tracks. Neither of these kinds of events have been observed from either orbital or suborbital altitudes before, making EUSO-SPB2 crucial to move forward towards a space-based instrument. It will also enhance the understanding of potential background signals for both detection techniques. This contribution will provide a short overview of the detector and the current status of the mission as well as its scientific goals.

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  25. An overview of the JEM-EUSO program and results

    Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J., Golzio A., González Alvarado C., Gorodetzky P., Green A., Guarino F., Guépin C., Guzmán A.

    Proceedings of Science   Vol. 395   2022.3

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    The field of UHECRs (Ultra-High energy cosmic Rays) and the understanding of particle acceleration in the cosmos, as a key ingredient to the behaviour of the most powerful sources in the universe, is of outmost importance for astroparticle physics as well as for fundamental physics and will improve our general understanding of the universe. The current main goals are to identify sources of UHECRs and their composition. For this, increased statistics is required. A space-based detector for UHECR research has the advantage of a very large exposure and a uniform coverage of the celestial sphere. The aim of the JEM-EUSO program [1] is to bring the study of UHECRs to space. The principle of observation is based on the detection of UV light emitted by isotropic fluorescence of atmospheric nitrogen excited by the Extensive Air Showers (EAS) in the Earth's atmosphere and forward-beamed Cherenkov radiation reflected from the Earth's surface or dense cloud tops. In addition to the prime objective of UHECR studies, JEM-EUSO will do several secondary studies due to the instruments' unique capacity of detecting very weak UV-signals with extreme time-resolution around 1 μs: meteors, Transient Luminous Events (TLE), bioluminescence, maps of human generated UV-light, searches for Strange Quark Matter (SQM) and high-energy neutrinos, and more. The JEM-EUSO program includes several missions from ground (EUSO-TA [2]), from stratospheric balloons (EUSO-Balloon [3], EUSO-SPB1 [4], EUSO-SPB2 [5]), and from space (TUS [6], Mini-EUSO [7]) employing fluorescence detectors to demonstrate the UHECR observation from space and prepare the large size missions K-EUSO [8] and POEMMA [9]. A review of the current status of the program, the key results obtained so far by the different projects, and the perspectives for the near future are presented.

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  26. Estimation of the exposure of the TUS space-based cosmic ray observatory

    Fenu F., Shinozaki K., Zotov M., Bertaina M., Castellina A., Cellino A., Klimov P., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Catalano O., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J.

    Proceedings of Science   Vol. 395   2022.3

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    The TUS observatory was the first orbital detector aimed at the detection of ultra-high energy cosmic rays (UHECRs). It was launched on April 28, 2016, from the Vostochny cosmodrome in Russia and operated until December 2017. It collected ∼ 80, 000 events with a time resolution of 0.8 μs. A fundamental parameter to be determined for cosmic ray studies is the exposure of an experiment. This parameter is important to estimate the average expected event rate as a function of energy and to calculate the absolute flux in case of event detection. Here we present results of a study aimed to calculate the exposure that TUS accumulated during its mission. The role of clouds, detector dead time, artificial sources, storms, lightning discharges, airglow and moon phases is studied in detail. An exposure estimate with its geographical distribution is presented. We report on the applied technique and on the perspectives of this study in view of the future missions of the JEM-EUSO program.

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  27. Measurement of UV light emission of the nighttime Earth by Mini-EUSO for space-based UHECR observations

    Shinozaki K., Bolmgren K., Barghini D., Battisti M., Belov A., Bertaina M., Bisconti F., Cambiè G., Capel F., Casolino M., Fenu F., Golzio A., Klimov P., Kungel V., Marcelli L., Miyamoto H., Piotrowski L.W., Plebaniak Z., Przybylak M., Szabelski J., Sakaki N., Takizawa Y., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertone P.F., Biermann P.L., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Campana D., Capdevielle J.N., Caramete A., Caramete L., Carlson P., Caruso R., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M.

    Proceedings of Science   Vol. 395   2022.3

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    The JEM-EUSO (Joint Experiment Missions for Extreme Universe Space Observatory) program aims at the realization of the ultra-high energy cosmic ray (UHECR) observation using wide field of view fluorescence detectors in orbit. Ultra-violet (UV) light emission from the atmosphere such as airglow and anthropogenic light on the Earth’s surface are the main background for the space-based UHECR observations. The Mini-EUSO mission has been operated on the International Space Station (ISS) since 2019 which is the first space-based experiment for the program. The Mini-EUSO instrument consists of a 25 cm refractive optics and the photo-detector module with the 2304-pixel array of the multi-anode photomultiplier tubes. On the nadir-looking window of the ISS, the instrument is capable of continuously monitoring a ∼300 km × 300 km area. In the present work, we report the preliminary result of the measurement of the UV light in the nighttime Earth using the Mini-EUSO data downlinked to the ground. We mapped UV light distribution both locally and globally below the ISS obit. Simulations were also made to characterize the instrument response to diffuse background light. We discuss the impact of such light on space-based UHECR observations and the Mini-EUSO science objectives.

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  28. Expected performance of the K-EUSO space-based observatory

    Bianciotto M., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J., Golzio A., González Alvarado C., Gorodetzky P., Green A., Guarino F., Guépin C.

    Proceedings of Science   Vol. 395   2022.3

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    K-EUSO is a planned mission of the JEM-EUSO program for the study of ultra-high energy cosmic rays (UHECR) from space, to be deployed on the International Space Station. The K-EUSO observatory consists of a UV telescope with a wide field of view, which aims at the detection of fluorescence light emitted by extensive air showers (EAS) in the atmosphere. The EAS events will be sampled with a time resolution of 1-2.5 μs to reconstruct the entire shower profile with high precision. The detector consisting of ∼ 105 independent pixels will allow a spatial resolution of ∼700 m on ground. From a 400 km altitude, K-EUSO will achieve a large and full sky exposure to sample the highest energy range of the UHECR spectrum. In this contribution, we present estimates of the performance of the observatory: an estimation of the expected exposure and triggered event rate as a function of energy and the event reconstruction performance, including resolution of arrival directions and energy of UHECRs.

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  29. Expected Performance of the EUSO-SPB2 Fluorescence Telescope

    Heaton C., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Eser J., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Finch W.I., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P., García-Ortega E., Gardiol D., Garipov G.K., Gascón E., Gazda E., Genci J., Golzio A., González Alvarado C., Gorodetzky P., Green A., Guarino F., Guépin C.

    Proceedings of Science   Vol. 395   2022.3

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    The Extreme Universe Space Observatory Super Pressure Balloon 2 (EUSO-SPB2) is under development, and will prototype instrumentation for future satellite-based missions, including the Probe of Extreme Multi-Messenger Astrophysics (POEMMA). EUSO-SPB2 will consist of two telescopes. The first is a Cherenkov telescope (CT) being developed to identify and estimate the background sources for future below-the-limb very high energy (E>10 PeV) astrophysical neutrino observations, as well as above-the-limb cosmic ray induced signals (E>1 PeV). The second is a fluorescence telescope (FT) being developed for detection of Ultra High Energy Cosmic Rays (UHECRs). In preparation for the expected launch in 2023, extensive simulations tuned by preliminary laboratory measurements have been performed to understand the FT capabilities. The energy threshold has been estimated at 1018.2 eV, and results in a maximum detection rate at 1018.6 eV when taking into account the shape of the UHECR spectrum. In addition, onboard software has been developed based on the simulations as well as experience with previous EUSO missions. This includes a level 1 trigger to be run on the computationally limited flight hardware, as well as a deep learning based prioritization algorithm in order to accommodate the balloon's telemetry budget. These techniques could also be used later for future, space-based missions.

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  30. EUSO@TurLab project in view of Mini-EUSO and EUSO-SPB2 missions

    Miyamoto H., Bertaina M., Barghini D., Battisti M., Belov A., Bisconti F., Blin-Bondil S., Bolmgren K., Cambie G., Capel F., Caruso R., Casolino M., Churilo I., Contino G., Cotto G., Ebisuzaki T., Fenu F., Fuglesang C., Golzio A., Gorodetzky P., Kajino F., Klimov P., Manfrin M., Marcelli L., Marengo M., Marszał W., Mignone M., Parizot E., Picozza P., Piotrowski L.W., Plebaniak Z., Prévôt G., Reali E., Ricci M., Sakaki N., Shinozaki K., Suino G., Szabelski J., Takizawa Y., Youssef A., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Blaksley C., Blanc N., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Crawford H.J.

    Proceedings of Science   Vol. 395   2022.3

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    The TurLab facility is a laboratory, equipped with a 5 m diameter and 1 m depth rotating tank, located in the fourth basement level of the Physics Department of the University of Turin. In the past years, we have used the facility to perform experiments related to the observations of Extreme Energy Cosmic Rays (EECRs) from space using the fluorescence technique for JEM-EUSO missions with the main objective to test the response of the trigger logic. In the missions, the diffuse night brightness and artificial and natural light sources can vary significantly in time and space in the Field of View (FoV) of the telescope. Therefore, it is essential to verify the detector performance and test the trigger logic under such an environment. By means of the tank rotation, a various terrestrial surface with the different optical characteristics such as ocean, land, forest, desert and clouds, as well as artificial and natural light sources such as city lights, lightnings and meteors passing by the detector FoV one after the other is reproduced. The fact that the tank located in a very dark place enables the tests under an optically controlled environment. Using the Mini-EUSO data taken since 2019 onboard the ISS, we will report on the comparison between TurLab and ISS measurements in view of future experiments at TurLab. Moreover, in the forthcoming months we will start testing the trigger logic of the EUSO-SPB2 mission. We report also on the plans and status for this purpose.

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  31. EUSO-SPB2 Telescope Optics and Testing

    Kungel V., Bachman R., Brewster J., Dawes M., Desiato J., Eser J., Finch W., Huelett L., Olinto A.V., Pace J., Pech M., Reardon P., Schovanek P., Wang C., Wiencke L., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bolmgren K., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Fenu F., Fernández-González S., Ferrarese S., Filippatos G., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fukushima M., Galeotti P.

    Proceedings of Science   Vol. 395   2022.3

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    The Extreme Universe Space Observatory - Super Pressure Balloon (EUSO-SPB2) mission will fly two custom telescopes that feature Schmidt optics to measure Čerenkov- and fluorescence-emission of extensive air-showers from cosmic rays at the PeV and EeV-scale, and search for τ-neutrinos. Both telescopes have 1-meter diameter apertures and UV/UV-visible sensitivity. The Čerenkov telescope uses a bifocal mirror segment alignment, to distinguish between a direct cosmic ray that hits the camera versus the Čerenkov light from outside the telescope. Telescope integration and laboratory calibration will be performed in Colorado. To estimate the point spread function and efficiency of the integrated telescopes, a test beam system that delivers a 1-meter diameter parallel beam of light is being fabricated. End-to-end tests of the fully integrated instruments will be carried out in a field campaign at dark sites in the Utah desert using cosmic rays, stars, and artificial light sources. Laser tracks have long been used to characterize the performance of fluorescence detectors in the field. For EUSO-SPB2 an improvement in the method that includes a correction for aerosol attenuation is anticipated by using a bi-dynamic Lidar configuration in which both the laser and the telescope are steerable. We plan to conduct these field tests in Fall 2021 and Spring 2022 to accommodate the scheduled launch of EUSO-SPB2 in 2023 from Wanaka, New Zealand.

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  32. Observation of ELVES with Mini-EUSO telescope on board the International Space Station

    Marcelli L., Arnone E., Barghini M., Battisti M., Belov A., Bertaina M., Blaksley C., Bolmgren K., Cambiè G., Capel F., Casolino M., Ebisuzaki T., Fuglesang C., Gorodetzki P., Kajino F., Klimov P., Marszał W., Mignone M., Parizot E., Picozza P., Piotrowski L.W., Plebaniak Z., Prévôt G., Romoli G., Reali E., Ricci M., Sakaki N., Shinozaki K., Szabelski J., Takizawa Y., Abdellaoui G., Abe S., Adams J.H., Allard D., Alonso G., Anchordoqui L., Anzalone A., Asano K., Attallah R., Attoui H., Ave Pernas M., Bagheri M., Baláz J., Bakiri M., Barghini D., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A.A., Benmessai K., Bertaina M., Bertone P.F., Biermann P.L., Bisconti F., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Campana D., Capdevielle J.N., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Černý K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Dinaucourt P., Djakonow A.

    Proceedings of Science   Vol. 395   2022.3

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    Mini-EUSO is a detector observing the Earth in the ultraviolet band from the International Space Station through a nadir-facing window, transparent to the UV radiation, in the Russian Zvezda module. Mini-EUSO main detector consists in an optical system with two Fresnel lenses and a focal surface composed of an array of 36 Hamamatsu Multi-Anode Photo-Multiplier tubes, for a total of 2304 pixels, with single photon counting sensitivity. The telescope also contains two ancillary cameras, in the near infrared and visible ranges, to complement measurements in these bandwidths. The instrument has a field of view of 44◦, a spatial resolution of about 6.3 km on the Earth surface and of about 4.7 km on the ionosphere. The telescope detects UV emissions of cosmic, atmospheric and terrestrial origin on different time scales, from a few µs upwards. On the fastest timescale of 2.5 µs, Mini-EUSO is able to observe atmospheric phenomena as Transient Luminous Events and in particular the ELVES, which take place when an electromagnetic wave generated by intra-cloud lightning interacts with the ionosphere, ionizing it and producing apparently superluminal expanding rings of several 100 km and lasting ' 100 µs. These highly energetic fast events have been observed to be produced in conjunction also with Terrestrial Gamma-Ray Flashes and therefore a detailed study of their characteristics (speed, radius, energy ...) is of crucial importance for the understanding of these phenomena. In this paper we present the observational capabilities of ELVE detection by Mini-EUSO and specifically the reconstruction and study of ELVE characteristics.

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  33. Overview of the Mini-EUSO μs trigger logic performance

    Battisti M., Barghini D., Belov A., Bertaina M., Bisconti F., Bolmgren K., Cambiè G., Capel F., Casolino M., Ebisuzaki T., Fenu F., Fuglesang C., Golzio A., Gorodetzki P., Kajino F., Klimov P., Manfrin M., Marcelli L., Marszał W., Miyamoto H., Parizot E., Picozza P., Piotrowski L.W., Plebaniak Z., Prévôt G., Reali E., Ricci M., Sakaki N., Shinozaki K., Szabelski J., Takizawa Y., Abdellaoui G., Abe S., Adams J.H., Ahriche A., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bacholle S., Baláz J., Bakiri M., Batisti M., Bartocci S., Zuccaro Marchi A., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Zgura I.S., Benmessai K., Weigand Muñoz R., Bertone P., Biermann P.L., von Ballmoos P., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Campana D., Capdevielle J.N., Zotov M.Y., Caramete A., Caramete L., Carlson P., Caruso R., Caslino M., Cassardo C., Castellina A., Catalano O., Cellino A., Cerny K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R.

    Proceedings of Science   Vol. 395   2022.3

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    Mini-EUSO is the first detector of the JEM-EUSO program deployed on the ISS. It is a wide field of view telescope currently operating from a nadir-facing UV-transparent window on the ISS. It is based on an array of MAPMTs working in photon counting mode with a 2.5 μs time resolution. Among the different scientific objectives it searches for light signals with time duration compatible to those expected from Extensive Air Showers (EAS) generated by EECRs interacting in the atmosphere. Although the energy threshold for cosmic ray showers is above E > 1021eV, due the constraints given by the size of the UV-transparent window, the dedicated trigger logic has been capable of the detection of other interesting classes of events, like elves and ground flashers. An overview of the general performance of the trigger system is provided, with a particular focus on the identification of classes of events responsible for the triggers.

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  34. Overview of Cherenkov Telescope on-board EUSO-SPB2 for the Detection of Very-High-Energy Neutrinos

    Bagheri M., Bertone P., Fontane I., Gazda E., Judd E.G., Krizmanic J.F., Kuznetsov E.N., Miller M.J., Nachtman J., Onel Y., Nepomuk Otte A., Reardon P.J., Matamala O.R., Wiencke L., Abdellaoui G., Abe S., Adams J.H., Ahriche A., Allard D., Alonso G., Anchordoqui L., Anzalone A., Arnone E., Asano K., Attallah R., Attoui H., Ave Pernas M., Bacholle S., Baláz J., Bakiri M., Barghini D., Bartocci S., Battisti M., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A., Benmessai K., Bertaina M., Yonetoku D., Biermann P.L., Bisconti F., Blaksley C., Blanc N., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K.S., Cafagna F., Cambié G., Campana D., Capdevielle J.N., Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano O., Cellino A., Cerny K., Chikawa M., Chiritoi G., Christl M.J., Colalillo R., Conti L., Cotto G., Crawford H.J., Cremonini R., Creusot A., de Castro Gónzalez A., de la Taille C., del Peral L., Diaz Damian A., Diesing R., Djakonow A., Djemil T., Ebersoldt A., Ebisuzaki T., Engel R., Eliasson L., Eser J., Fenu F., Fernández-González S., Ferrarese S., Fillapatos G., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T.

    Proceedings of Science   Vol. 395   2022.3

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    We present the status of the development of a Cherenkov telescope to be flown on a long-duration balloon flight, the Extreme Universe Space Observatory Super Pressure Balloon 2 (EUSO-SPB2). EUSO-SPB2 is an approved NASA balloon mission that is planned to fly in 2023 and is a precursor of the Probe of Extreme Multi-Messenger Astrophysics (POEMMA), a candidate for an Astrophysics probe-class mission. The purpose of the Cherenkov telescope on-board EUSOSPB2 is to classify known and unknown sources of backgrounds for future space-based neutrino detectors. Furthermore, we will use the Earth-skimming technique to search for Very-High-Energy (VHE) tau neutrinos below the limb (E > 10 PeV) and observe air showers from cosmic rays above the limb. The 0.785 m2 Cherenkov telescope is equipped with a 512-pixel SiPM camera covering a 12.8° x 6.4° (Horizontal × Vertical) field of view. The camera signals are digitized with a 100 MS/s readout system. In this paper, we discuss the status of the telescope development, the camera integration, and simulation studies of the camera response.

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  35. Measurement of nuclear spin relaxation time in lanthanum aluminate for development of polarized lanthanum target

    Ishizaki K., Hotta H., Ide I., Iinuma M., Iwata T., Kitaguchi M., Kohri H., Miura D., Miyachi Y., Ohta T., Shimizu H.M., Yoshikawa H., Yosoi M.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 1020   2021.12

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    The nuclear spin–lattice relaxation time (T1) of lanthanum and aluminum nuclei in a single crystal of lanthanum aluminate doped with neodymium ions is studied to estimate the feasibility of the dynamically polarized lanthanum target applicable to beam experiments. The application of our interest is the study of fundamental discrete symmetries in the spin optics of epithermal neutrons. This study requires a highly flexible choice of the applied magnetic field for neutron spin control and favors longer T1 under lower magnetic field and at higher temperature. The T1 of 139La and 27Al was measured under magnetic fields of 0.5–2.5 T and at temperatures of 0.1–1.5 K and found widely distributed up to 100 h. The result suggests that the T1 can be as long as T1∼ 1 h at 0.1 K with a magnetic field of 0.1 T, which partially fulfills the requirement of the neutron beam experiment. Possible improvements to achieve a longer T1 are discussed.

    DOI: 10.1016/j.nima.2021.165845

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  36. Pendellösung interferometry probes the neutron charge radius, lattice dynamics, and fifth forces

    Heacock B., Fujiie T., Haun R.W., Henins A., Hirota K., Hosobata T., Huber M.G., Kitaguchi M., Pushin D.A., Shimizu H., Takeda M., Valdillez R., Yamagata Y., Young A.R.

    Science   Vol. 373 ( 6560 ) page: 1239 - 1243   2021.9

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    Structure factors describe how incident radiation is scattered from materials such as silicon and germanium and characterize the physical interaction between the material and scattered particles. We used neutron Pendellösung interferometry to make precision measurements of the (220) and (400) neutron-silicon structure factors and achieved a factor-of-four improvement in the (111) structure factor uncertainty. These data provide measurements of the silicon Debye-Waller factor at room temperature and the mean square neutron charge radius 〈rn2 〉 ¼ -0:1101T0:0089 square femtometers. Combined with existing measurements of the Debye-Waller factor and charge radius, the measured structure factors also improve constraints on the strength of a Yukawa modification to gravity by an order of magnitude over the 20 picometer–to–10 nanometer length scale range.

    DOI: 10.1126/science.abc2794

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  37. New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the HIBEAM/NNBAR experiment at the European Spallation Source

    Addazi A., Anderson K., Ansell S., Babu K.S., Barrow J.L., Baxter D.V., Bentley P.M., Berezhiani Z., Bevilacqua R., Biondi R., Bohm C., Brooijmans G., Broussard L.J., Cederc ll J., Crawford C., Dev P.S.B., Dijulio D.D., Dolgov A.D., Dunne K., Fierlinger P., Fitzsimmons M.R., Fomin A., Frost M.J., Gardiner S., Gardner S., Galindo-Uribarri A., Geltenbort P., Girmohanta S., Golubev P., Golubeva E., Greene G.L., Greenshaw T., Gudkov V., Hall-Wilton R., Heilbronn L., Herrero-Garcia J., Holley A., Ichikawa G., Ito T.M., Iverson E., Johansson T., Jönsson L., Jwa Y.J., Kamyshkov Y., Kanaki K., Kearns E., Kokai Z., Kerbikov B., Kitaguchi M., Kittelmann T., Klinkby E., Kobakhidze A., Koerner L.W., Kopeliovich B., Kozela A., Kudryavtsev V., Kupsc A., Lee Y.T., Lindroos M., Makkinje J., Marquez J.I., Meirose B., Miller T.M., Milstead D., Mohapatra R.N., Morishima T., Muhrer G., Mumm H.P., Nagamoto K., Nepomuceno A., Nesti F., Nesvizhevsky V.V., Nilsson T., Oskarsson A., Paryev E., Pattie R.W., Penttil S., Perrey H., Pokotilovski Y.N., Potashnikovav I., Ramic K., Redding C., Richard J.M., Ries D., Rinaldi E., Rizzi N., Rossi N., Ruggles A., Rybolt B., Santoro V., Sarkar U., Saunders A., Senjanovic G., Serebrov A.P., Shimizu H.M., Shrock R., Silverstein S., Silvermyr D., Snow W.M., Takibayev A.

    Journal of Physics G: Nuclear and Particle Physics   Vol. 48 ( 7 )   2021.7

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    The violation of baryon number, is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetry in the Universe. However, such a process has yet to be experimentally observed. The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source to search for baryon number violation. The program will include high-sensitivity searches for processes that violate baryon number by one or two units: free neutron-antineutron oscillation via mixing, neutron-antineutron oscillation via regeneration from a sterile neutron state , and neutron disappearance (n → n′); the effective process of neutron regeneration is also possible. The program can be used to discover and characterize mixing in the neutron, antineutron and sterile neutron sectors. The experiment addresses topical open questions such as the origins of baryogenesis and the nature of dark matter, and is sensitive to scales of new physics substantially in excess of those available at colliders. A goal of the program is to open a discovery window to neutron conversion probabilities (sensitivities) by up to three orders of magnitude compared with previous searches. The opportunity to make such a leap in sensitivity tests should not be squandered. The experiment pulls together a diverse international team of physicists from the particle (collider and low energy) and nuclear physics communities, while also including specialists in neutronics and magnetics.

    DOI: 10.1088/1361-6471/abf429

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  38. Energy-dependent angular distribution of individual γ rays in the la 139 (n,γ) la 140 ∗ reaction

    Okudaira T., Endo S., Fujioka H., Hirota K., Ishizaki K., Kimura A., Kitaguchi M., Koga J., Niinomi Y., Sakai K., Shima T., Shimizu H.M., Takada S., Tani Y., Yamamoto T., Yoshikawa H., Yoshioka T.

    Physical Review C   Vol. 104 ( 1 )   2021.6

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    Neutron energy-dependent angular distributions were observed for individual γ rays from the 0.74 eV p-wave resonance of La139+n to several lower excited states of La140. The γ-ray signals were analyzed in a two-dimensional histogram of the γ-ray energy, measured with distributed germanium detectors, and neutron energy, determined with the time-of-flight of pulsed neutrons, to identify the neutron energy dependence of the angular distribution for each individual γ rays. The angular distribution was also found for a photopeak accompanied with a faint p-wave resonance component. Our results can be interpreted as interference between s- and p-wave amplitudes, which may be used to study discrete symmetries of fundamental interactions.

    DOI: 10.1103/PhysRevC.104.014601

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  39. Measurement of γ rays from <sup>6</sup>LiF tile as an inner wall of a neutron-decay detector

    Koga J., Ieki S., Kimura A., Kitaguchi M., Kitahara R., Mishima K., Nagakura N., Okudaira T., Otono H., Shimizu H.M., Sumi N., Takada S., Tomita T., Yamada T., Yoshioka T.

    Journal of Instrumentation   Vol. 16 ( 2 )   2021.2

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    A neutron lifetime measurement conducted at the Japan Proton Accelerator Research Complex (J-PARC) is counting the number of electrons from neutron decays with a time projection chamber (TPC). The γ rays produced in the TPC cause irreducible background events. To achieve the precise measurement, the inner walls of the TPC consist of 6Li-enriched lithium-fluoride (6LiF) tiles to suppress the amount of γ rays. In order to estimate the amount of γ rays from the 6LiF tile, prompt gamma ray analysis (PGA) measurements were performed using germanium detectors. We reconstructed the measured γ-ray energy spectrum using a Monte Carlo simulation with the stripping method. Comparing the measured spectrum with a simulated one, the number of γ rays emitted from the6LiF tile was (2.3+0.7-0.3) × 10-4 per incident neutron. This is 1.4+0.5-0.2 times the value assumed for a mole fraction of the 6LiF tile. We concluded that the amount of γ rays produced from the 6LiF tile is not more twice the originally assumed value.

    DOI: 10.1088/1748-0221/16/02/P02001

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  40. Neutron Imaging Using a Fine-Grained Nuclear Emulsion

    Hirota K., Ariga T., Hino M., Ichikawa G., Kawasaki S., Kitaguchi M., Mishima K., Muto N., Naganawa N., Shimizu H.M.

    Journal of Imaging   Vol. 7 ( 1 )   2021.1

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    A neutron detector using a fine-grained nuclear emulsion has a sub-micron spatial resolution and thus has potential to be applied as high-resolution neutron imaging. In this paper, we present two approaches to applying the emulsion detectors for neutron imaging. One is using a track analysis to derive the reaction points for high resolution. From an image obtained with a 9 µm pitch Gd grating with cold neutrons, periodic peak with a standard deviation of 1.3 µm was observed. The other is an approach without a track analysis for high-density irradiation. An internal structure of a crystal oscillator chip, with a scale of approximately 30 µm, was able to be observed after an image analysis.

    DOI: 10.3390/jimaging7010004

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  41. Neutron lifetime measurement with pulsed cold neutrons

    Hirota K., Ichikawa G., Ieki S., Ino T., Iwashita Y., Kitaguchi M., Kitahara R., Koga J., Mishima K., Mogi T., Morikawa K., Morishita A., Nagakura N., Oide H., Okabe H., Otono H., Seki Y., Sekiba D., Shima T., Shimizu H.M., Sumi N., Sumino H., Tomita T., Uehara H., Yamada T., Yamashita S., Yano K., Yokohashi M., Yoshioka T.

    Progress of Theoretical and Experimental Physics   Vol. 2020 ( 12 )   2020.12

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    The neutron lifetime has been measured by comparing the decay rate with the reaction rate of 3He nuclei of a pulsed neutron beam from the spallation neutron source at the Japan Proton Accelerator Research Complex (J-PARC). The decay rate and the reaction rate were determined by simultaneously detecting electrons from the neutron decay and protons from the 3He(n,p)3H reaction using a gas chamber, the working gas of which contains diluted 3He. The measured neutron lifetime was 898 ± 10stat+15-18 sys s.

    DOI: 10.1093/ptep/ptaa169

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  42. Proof-of-principle Experiment of <sup>4</sup>He Excimer Cluster Generation via Neutron-<sup>3</sup>He Absorption Reaction for Visualization of Velocity Fields in Superfluid <sup>4</sup>He

    Matsushita T., Sonnenschein V., Iguchi T., Ito D., Kitaguchi M., Kiyanagi Y., Guo W., Saito Y., Shinohara T., Shimizu H.M., Suzuki S., Tsuji Y., Tomita H., Hayashida H., Hishida M., Hiroi K., Hirota K., Maruyama T., Waki S., Wada N.

    hamon   Vol. 30 ( 4 ) page: 192 - 196   2020.11

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    <p>For visualization of flows in superfluid <sup>4</sup>He, an excited helium molecule (excimer) <sup>4</sup>He<sub>2</sub><sup>*</sup> is an ideally suitable flow tracer, because it has a molecular size with a minimum influence to flow, and follows only normal-component flow around 1K but only vortices below 0.5 K. However, to visualize flow fields in 3D, small clouds (clusters) of <sup>4</sup>He<sub>2</sub><sup>*</sup> are required, whose generation method has not been established. To generate such clusters, we proposed the use of neutron-<sup>3</sup>He absorption reaction. In the proof-of-principle experiments, we have confirmed the <sup>4</sup>He<sub>2</sub><sup>*</sup> generation, while the detail of clusters still remains undetermined. The concept, methods, progress, and present status are shown.</p>

    DOI: 10.5611/hamon.30.4_192

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  43. A Multi-Center Contouring Study of Spinal Cord Comparing MRI and Myelo-CT Fusion

    Tanaka H., Aoyama T., Shimizu H., Tachibana H., Koide Y., Miyauchi R., Wakabayashi K., Ooshima Y., Adachi S., Kozai Y., Kodaira T.

    INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS   Vol. 108 ( 3 ) page: E377 - E377   2020.11

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  44. Development and application of a <sup>3</sup>He Neutron Spin Filter at J-PARC

    Okudaira T., Oku T., Ino T., Hayashida H., Kira H., Sakai K., Hiroi K., Takahashi S., Aizawa K., Endo H., Endo S., Hino M., Hirota K., Honda T., Ikeda K., Kakurai K., Kambara W., Kitaguchi M., Oda T., Ohshita H., Otomo T., Shimizu H.M., Shinohara T., Suzuki J., Yamamoto T.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 977   2020.10

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    We are developing a neutron polarizer with polarized 3He gas, referred to as a 3He spin filter, based on the Spin Exchange Optical Pumping (SEOP) for polarized neutron scattering experiments at Materials and Life Science Experimental Facility (MLF) of Japan Proton Accelerator Research Complex (J-PARC). A 3He gas-filling station was constructed at J-PARC, and several 3He cells with long spin relaxation times have been fabricated using the gas-filling station. A laboratory has been prepared in the MLF beam hall for polarizing 3He cells, and compact pumping systems with laser powers of 30 W and 110 W, which can be installed onto a neutron beamline, have been developed. A 3He polarization of 85% was achieved at a neutron beamline by using the pumping system with the 110 W laser. Recently, the first user experiment utilizing the 3He spin filter was conducted, and there have been several more since then. The development and utilization of 3He spin filters at MLF of J-PARC are reported.

    DOI: 10.1016/j.nima.2020.164301

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  45. A candidate secular variation model for IGRF-13 based on MHD dynamo simulation and 4DEnVar data assimilation

    Minami Takuto, Nakano Shin'ya, Lesur Vincent, Takahashi Futoshi, Matsushima Masaki, Shimizu Hisayoshi, Nakashima Ryosuke, Taniguchi Hinami, Toh Hiroaki

    EARTH PLANETS AND SPACE   Vol. 72 ( 1 )   2020.9

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    We have submitted a secular variation (SV) candidate model for the thirteenth generation of International Geomagnetic Reference Field model (IGRF-13) using a data assimilation scheme and a magnetohydrodynamic (MHD) dynamo simulation code. This is the first contribution to the IGRF community from research groups in Japan. A geomagnetic field model derived from magnetic observatory hourly means, and CHAMP and Swarm-A satellite data, has been used as input data to the assimilation scheme. We adopt an ensemble-based assimilation scheme, called four-dimensional ensemble-based variational method (4DEnVar), which linearizes outputs of MHD dynamo simulation with respect to the deviation from a dynamo state vector at an initial condition. The data vector for the assimilation consists of the poloidal scalar potential of the geomagnetic field at the core surface and flow velocity field slightly below the core surface. Dimensionless time of numerical geodynamo is adjusted to the actual time by comparison of secular variation time scales. For SV prediction, we first generate an ensemble of dynamo simulation results from a free dynamo run. We then assimilate the ensemble to the data with a 10-year assimilation window through iterations, and finally forecast future SV by the weighted sum of the future extension parts of the ensemble members. Hindcast of the method for the assimilation window from 2004.50 to 2014.25 confirms that the linear approximation holds for 10-year assimilation window with our iterative ensemble renewal method. We demonstrate that the forecast performance of our data assimilation and forecast scheme is comparable with that of IGRF-12 by comparing data misfits 4.5 years after the release epoch. For estimation of our IGRF-13SV candidate model, we set assimilation window from 2009.50 to 2019.50. We generate our final SV candidate model by linear fitting for the weighted sum of the ensemble MHD dynamo simulation members from 2019.50 to 2025.00. We derive errors of our SV candidate model by one standard deviation of SV histograms based on all the ensemble members.[Figure not available: see fulltext.].

    DOI: 10.1186/s40623-020-01253-8

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  46. Fluorescence Imaging of He<sub>2</sub><i><sup>* </sup></i>Excimers generated by neutron and gamma irradiation of superfluid Helium using a cold neutron beamline at J-PARC / MLF

    Sonnenschein Volker Thomas, Matsushita Taku, Tsuji Yoshiyuki, Guo Wei, Hayashida Hiroshi, Hirota Katsuya, Kosuke Hiroi, Maruyama Takumi, Hishida Mayu, Tomita Hideki, Ito Daisuke, Kitaguchi Masaaki, Kiyanagi Yoshiaki, Sou Suzuki, Saito Yasushi, Shimizu Hirohiko, Shinohara Takenao, Wada Nobuo

    JSAP Annual Meetings Extended Abstracts   Vol. 2020.2 ( 0 ) page: 287 - 287   2020.8

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    DOI: 10.11470/jsapmeeting.2020.2.0_287

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  47. 3-D Intrinsic and Scattering Seismic Attenuation Structures Beneath Kyushu, Japan

    Shito A., Matsumoto S., Ohkura T., Shimizu H., Sakai S., Iio Y., Takahashi H., Yakiwara H., Watanabe T., Kosuga M., Okada T., Yoshimi M., Asano Y.

    JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH   Vol. 125 ( 8 )   2020.8

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    The attenuation of seismic wave energy is caused by intrinsic absorption and scattering. The former involves the conversion of seismic wave energy to heat energy via internal friction due to the anelasticity of the medium, whereas the latter involves the scattering of seismic wave energy due to random elastic heterogeneities in the medium. Quantifying both intrinsic ((Formula presented.)) and scattering ((Formula presented.)) attenuation is therefore important for understanding the physical properties of the Earth's interior and predicting seismic wave propagation. Here we develop a new procedure to separately map three-dimensional (3-D) (Formula presented.) and (Formula presented.) structures. The path-averaged (Formula presented.) and (Formula presented.) values are obtained via an envelope-fitting approach that employs a multiple-scattering model. The path-averaged (Formula presented.) and (Formula presented.) structures are then mapped into 3-D space using a tomographic inversion technique based on sensitivity kernels, which are calculated from a Monte Carlo simulation of the radiative transfer equations. We apply this method to map the crustal structure beneath Kyushu, Japan, and obtain 3-D (Formula presented.) and (Formula presented.) structures for the 1–2, 2–4, and 4–8 Hz frequency bands. The spatial attenuation patterns are similar for each of the analyzed frequency bands, with the spatial variability in (Formula presented.) being more pronounced than that in (Formula presented.). The high- (Formula presented.) and (Formula presented.) regions correspond to the locations of active volcanoes. Conversely, the northern Kyushu area possesses low- (Formula presented.) and (Formula presented.) zones that correspond to low heat flow and Cretaceous granite, respectively. The overall (Formula presented.) and (Formula presented.) distributions correlate with thermal and geological structures, respectively.

    DOI: 10.1029/2019JB018742

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  48. Neutron spin dynamics in polarized targets

    Gudkov V., Shimizu H.M.

    Physical Review C   Vol. 102 ( 1 )   2020.7

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    We present the neutron elastic scattering amplitude for an arbitrarily polarized target in an irreducible spherical-tensor representation. The general approach for the description of neutron spin dynamics for propagation through the medium with an arbitrary polarization is discussed in relation to the search for a time-reversal invariance violation in neutron scattering.

    DOI: 10.1103/PhysRevC.102.015503

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  49. Transverse asymmetry of γ rays from neutron-induced compound states of La 140

    Yamamoto T., Okudaira T., Endo S., Fujioka H., Hirota K., Ino T., Ishizaki K., Kimura A., Kitaguchi M., Koga J., Makise S., Niinomi Y., Oku T., Sakai K., Shima T., Shimizu H.M., Takada S., Tani Y., Yoshikawa H., Yoshioka T.

    Physical Review C   Vol. 101 ( 6 )   2020.6

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    An sp-mixing model, which describes a compound nuclear reaction by mixing partial waves, predicts a correlation term in this reaction. A detailed study of the sp-mixing model is required to study the feasibility of a new type of time reversal symmetry violation search experiment. The correlation term σn·(kn×kγ) in the La139(n - ,γ) reaction has been studied by measuring γ-ray and neutron energies utilizing epithermal polarized neutrons and germanium detectors. The transverse asymmetry for single γ-ray transition was measured to be 0.60±0.19 in the p-wave resonance.

    DOI: 10.1103/PhysRevC.101.064624

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  50. An experimental setup for creating and imaging <sup>4</sup> He 2∗ excimer cluster tracers in superfluid helium-4 via neutron-<sup>3</sup>He absorption reaction

    Sonnenschein V., Tsuji Y., Kokuryu S., Kubo W., Suzuki S., Tomita H., Kiyanagi Y., Iguchi T., Matsushita T., Wada N., Kitaguchi M., Shimizu H.M., Hirota K., Shinohara T., Hiroi K., Hayashida H., Guo W., Ito D., Saito Y.

    Review of Scientific Instruments   Vol. 91 ( 3 )   2020.3

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    For the purpose of future visualization of the flow field in superfluid helium-4, clusters of the triplet state excimer 4He2* are generated along the micro-scale recoil tracks of the neutron-absorption reaction n + 3He → 3T + p. This reaction is induced by neutron irradiation of the 3He fraction contained in natural isotopic abundance liquid helium with neutron beams either from the Japan Proton Accelerator Research Complex, Materials and Life Science Experimental Facility (JPARC)/Materials and Life Science Experimental Facility or from the Kyoto University Institute for Integrated Radiation and Nuclear Science. These 4He2* clusters are expected to be ideal tracers of the normal-fluid component in superfluid helium with several advantageous properties. Evidence of the excimer generation is inferred by detection of laser induced fluorescence emitted from the 4He2* clusters excited by a purpose-built short pulse gain-switched titanium:sapphire (Ti:sa) laser operating at a wavelength of 905 nm. The setup and performance characteristics of the laser system including the Ti:sa and two continuous wave re-pumping lasers are described. Detection at the fluorescence wavelength of 640 nm is performed by using optical bandpass filtered photomultiplier tubes (PMT). Electrical noise in the PMT acquisition traces could successfully be suppressed by post-processing with a simple algorithm. Despite other laser-related backgrounds, the excimer was clearly identified by its fluorescence decay characteristics. Production of the excimer was found to be proportional to the neutron flux, adjusted via insertion of different collimators into the neutron beam. These observations suggest that the apparatus we constructed does function in the expected manner and, therefore, has the potential for groundbreaking turbulence research with superfluid helium.

    DOI: 10.1063/1.5130919

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  51. Neutron lifetime measurement at J-PARC/BL05: SFC upgrade

    Okabe Hiroki, Hino Masahiro, Hirota Katsuya, Ieki Sei, Ino Takashi, Iwashita Yoshihisa, Kitaguchi Masaaki, Kitahara Ryunosuke, Koga Jun, Mishima Kenji, Morishita Aya, Nakano Yusuke, Nagakura Naoki, Oda Tatsuro, Oide Hideyuki, Otono Hidetoshi, Seki Yoshichika, Sekiba Daiichiro, Shima Tatsushi, Shimizu Hirohiko M., Sumi Naoyuki, Sumino Hirochika, Taketani Kaoru, Tomita Tatsuhiko, Uehara Hideaki, Yamada Takahito, Yamashita Satoru, Yokohashi Mami, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 72 - 72   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_72

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  52. The progress of polarized target study for the search of T-violation in the neutron resonant capture in 2019

    Hotta H., Ishizaki K., Ide I., Shimizu H. M., Kitaguchi M., Iinuma M., Kohri H., Yosoi M., Yoshikawa H., Ishimoto S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 335 - 335   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_335

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  53. Development of nuclear polarized target for NOPTREX experiments --Measurement of spin-lattice relaxation in LaAlO<sub>3</sub>--

    Ide I., Ishizaki K., Shimizu H. M., Kitaguchi M., Iinuma M., Kohri H., Yosoi M., Yoshikawa H., Miyachi Y., Miura D., Ishimoto S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 311 - 311   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_311

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  54. Report of the MTV experiment 3

    Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Goto F., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Tamura K., Totsuka Y., Nakaya Y., Baba H., Masuda H., Yamawaki Y., Yokohashi M., Yoshida T., Watanabe E., Behr J. A., Pearson M., Levy P., Murata J.

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 280 - 280   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_280

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  55. Report of the MTV experiment 2

    Goto F., Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Tamura K., Totsuka Y., Nakaya Y., Baba H., Masuda H., Murata J., Yamawaki Y., Yokohashi M., Watanabe E., Behr John A, Pearson Matthew, Levy Phil

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 279 - 279   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_279

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  56. Report of the MTV experiment 1

    Tamura K., Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Goto F., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Totsuka Y., Nakaya Y., Baba H., Masuda H., Murata J., Yamawaki Y., Yokohashi M., Watanabe E., Behr John A, Pearson Matthew, Levy Phil

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 278 - 278   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_278

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  57. Neutron lifetime measurement at J-PARC/BL05: Estimation of background and systematic errors

    ICHIKAWA Go, HIROTA Katsuya, IEKI Sei, INO Takashi, IWASHITA Yoshihisa, KAJIWARA Shogo, KATO Yu, KITAGUCHI Masaaki, KITAHARA Ryunosuke, KOGA Jun, MAKISE So, MISHIMA Kenji, MOGI Takanori, MORIKAWA Koki, MORISHITA Aya, NAGAKURA Naoki, NAKANO Yusuke, OIDE Hideyuki, OKABE Hiroki, OTONO Hidetoshi, SEKI Yoshichika, SEKIBA Daiichiro, SHIMA Tatsushi, SHIMIZU Hirohiko, SUGISAWA Yuki, SUMI Naoyuki, SUMINO Hirochika, TAKETANI Kaoru, TANABE Tomohiko, TOMITA Tatsuhiko, UEHARA Hideaki, YAMADA Takahito, YAMASHITA Satoru, YANO Kodai, YOKOHASHI Mami, YOSHIOKA Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 70 - 70   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_70

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  58. Development of Pulsed Neutron Interferometer

    Yamamoto Nana, Kitaguchi Masaaki, Shimizu Hirohiko, Seki Yoshichika, Mishima Kenji

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 318 - 318   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_318

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  59. Measurement of the inner electric field of a crystals for neutron EDM measurement using crystal diffraction

    Hishida Mayu, Itoh Shigeyasu, Fukumura Seiso, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 276 - 276   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_276

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  60. Searching for Lorentz Violation in Weak Interaction

    Takenaka R., Ozaki S., Kajihara T., Kitaguchi M., Goto F., Shimizu H. M., Shimizu Y., Tamura K., Masuda H., Yamawaki Y., Watanabe E., Murata J.

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 313 - 313   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_313

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  61. Development of the Model Describing Neutron Coherent Scattering by Extra-dimensional Gravity

    Kondo Ryota, Hiromoto Masayuki, Hori Taichi, Haddock Christopher C., Oi Noriko, Hirota Katsuya, Ino Takashi, Kitaguchi Masaaki, Mishima Kenji, Shima Tatsushi, Shimizu Hirohiko M., Snow W. Michael, Hara Shuhei, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 315 - 315   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_315

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  62. The progress of polarized target study for the search of T-violation in the neutron resonant capture in 2019

    Ishizaki K., Iinuma M., Ikeda Y., Ikegami H., Ishiguro R., Ishimoto S., Ide I., Ino T., Iwata T., Uesaka T., Otomo T., Oku T., Kanda H., Kitaguchi M., Kohri H., Shima T., Shimizu H. M., Takahashi D., Takahashi Y., Fujita M., Hotta D., matsushita T., Miura D., Miyachi Y., Yoshikawa H., Yosoi M., Wada N., NOPTREX collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 310 - 310   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_310

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  63. Performance of a detector for new intermediate range interaction by means of neutron coherent scattering

    Nakabe Rintaro, Shimizu Hirohiko, Hirota Katsuya, Kitaguchi Masaaki, Kondo Ryota, Shima Tatsushi, Hara Shuhei, Hiromoto Masayuki, Haddock Christopher C., Ino Takashi, Mishima Kenji, Snow W. Michael, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 317 - 317   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_317

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  64. Test of nanoparticle target for study of new intermediate range interaction by means of neutron coherent scattering

    Hiromoto Masayuki, Haddock Christopher C., Nakabe Rintaro, Kondo Ryota, Hirota Katsuya, Ino Takashi, Kitaguchi Masaaki, Mishima Kenji, Shima Tatsushi, Shimizu Hirohiko M., Snow W. Michael, Yoshioka Tamaki, Hara Shuhei

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 316 - 316   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_316

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  65. Unknown Interaction Search with Neutron Diffraction

    Fujiie T., Shimizu H. M., Kitaguchi M., Yamagata Y., Hosobata T., Takeda M., Young Albert, Valdillez Robert, Heacock Benjamin, Huber Michael

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 74 - 74   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_74

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  66. Measurement of spin rotation by the inner electric field of a crystal for nEDM search experiment

    Itoh Shigeyasu, Fukumura Seiso, Hishida Mayu, Kitaguchi Masaaki, Shimizu Hirohiko M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 275 - 275   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_275

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  67. Neutron lifetime measurement at J-PARC/BL05: Estimation of content rate of <sup>3</sup>He in TPC operating gas

    MORIKAWA Koki, HIROTA Katsuya, ICHIKAWA Go, IEKI Sei, INO Takashi, IWASHITA Yoshihisa, KAJIWARA Shogo, KATO Yu, KITAGUCHI Masaaki, KITAHARA Ryunosuke, KOGA Jun, MAKISE So, MISHIMA Kenji, MOGI Takanori, MORISHITA Aya, NAGAKURA Naoki, NAKANO Yusuke, OIDE Hideyuki, OKABE Hiroki, OTONO Hidetoshi, SEKI Yoshichika, SEKIBA Daiichiro, SHIMA Tatsushi, SHIMIZU Hirohiko, SUGISAWA Yuki, SUMI Naoyuki, SUMINO Hirochika, TAKETANI Kaoru, TANABE Tomohiko, TOMITA Tatsuhiko, UEHARA Hideaki, YAMADA Takahito, YAMASHITA Satoru, YANO Kodai, YOKOHASHI Mami, YOSHIOKA Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 75.1 ( 0 ) page: 71 - 71   2020

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    DOI: 10.11316/jpsgaiyo.75.1.0_71

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  68. Measurement of the total neutron-scattering cross-section ratios of noble gases of natural isotopic composition using a pulsed neutron beam

    Haddock C.C., Hiromoto M., Hirota K., Ino T., Kitaguchi M., Mishima K., Oi N., Shima T., Shimizu H.M., Snow W.M., Yoshioka T.

    Physical Review C   Vol. 100 ( 6 )   2019.12

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    Precision measurements of slow neutron cross sections with atoms have several scientific applications. In particular, the n-He4 s-wave scattering length is important to know both for helping to constrain the nuclear three-body interaction and for the proper interpretation of several ongoing slow neutron experiments searching for other types of neutron-atom interactions. We present new measurements of the ratios of the neutron differential scattering cross sections of the noble gases He, Ar, Kr, and Xe to Ne. All gases used were of natural isotopic abundance. These measurements were performed using a recently developed neutron-scattering apparatus for gas samples located on a pulsed slow neutron beamline which was designed to search for possible exotic neutron-atom interactions and employs both neutron time of flight information and a position-sensitive neutron detector for scattering event reconstruction. We found agreement with the literature values of scattering cross sections inferred from Ar/Ne, Kr/Ne, and Xe/Ne differential cross-section ratios over the q range of 1-7 nm-1. However, for the case of He/Ne we find that the cross section inferred differs by 11.3% (7.6σ) from previously reported values inferred from neutron phase-shift measurements, but is in reasonable agreement with values from other measurements. The very large discrepancy in the He/Ne ratio calls for a new precision measurement of the n-He4 scattering length using neutron interferometry.

    DOI: 10.1103/PhysRevC.100.064002

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  69. Concentration of Neutron Velocity for High-Density Ultra-Cold Neutrons

    Kitaguchi Masaaki, Shimizu Hirohiko M., Iwashita Yoshihisa

    Journal of the Particle Accelerator Society of Japan   Vol. 16 ( 3 ) page: 161 - 166   2019.10

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    <p>Accelerator technique for neutrons is discussed in this article. In the case of pulsed neutrons, the velocity is well-defined as a function of their arrival time. Electromagnetic neutron accelerator/decelerator synchronized with the neutron time-of-flight is capable of selectively changing the neutron velocity and concentrating the velocity distribution. Possible enhancement of the neutron intensity at a specific neutron velocity is calculated by using numerical simulations. This technique, for example, can be applied to efficient conversion of ultra-cold neutrons with superfluid helium.</p>

    DOI: 10.50868/pasj.16.3_161

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  70. Improved accuracy in the determination of the thermal cross section of <sup>14</sup>N(n, p) <sup>14</sup>C for neutron lifetime measurement

    Kitahara R., Hirota K., Ieki S., Ino T., Iwashita Y., Kitaguchi M., Koga J., Mishima K., Morishita A., Nagakura N., Oide H., Otono H., Seki Y., Sekiba D., Shima T., Shimizu H.M., Sumi N., Sumino H., Taketani K., Tomita T., Yamada T., Yamashita S., Yokohashi M., Yoshioka T.

    Progress of Theoretical and Experimental Physics   Vol. 2019 ( 9 )   2019.9

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    In a neutron lifetime measurement at the Japan Proton Accelerator Complex, the neutron lifetime is calculated from the neutron decay rate and the incident neutron flux. The flux is obtained by counting the protons emitted from the neutron absorption reaction of 3He gas, which is diluted in a mixture of working gas in a detector. Hence, it is crucial to determine the amount of 3He in the mixture. In order to improve the accuracy of the number density of the 3He nuclei, we have suggested using the 14N(n, p)14C reaction as a reference because this reaction involves similar kinetic energy to the 3He(n,p)3 H reaction and a smaller reaction cross section to introduce reasonable large partial pressure. The uncertainty of the recommended value of the cross section, however, is not satisfied with our requirement. In this paper we report the most accurate experimental value of the cross section of the 14N(n,p)14C reaction at a neutron velocity of 2200 m s-1, measured relative to the 3He(n,p)3H reaction. The result was 1.868 \pm 0.003 (stat.) ± 0.006 (sys.) b. Additionally, the cross section of the 17O(n,α)14C reaction at the neutron velocity is also redetermined as 249 ± 6 mb.

    DOI: 10.1093/ptep/ptz096

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  71. Ultra-violet imaging of the night-time earth by EUSO-Balloon towards space-based ultra-high energy cosmic ray observations

    Abdellaoui G., Abe S., Adams J. H. Jr., Ahriche A., Allard D., Allen L., Alonso G., Anchordoqui L., Anzalone A., Arai Y., Asano K., Attallah R., Attoui H., Ave Pernas M., Bacholle S., Bakiri M., Baragatti P., Barrillon P., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A., Belov K., Benmessai K., Bertaina M., Biermann P. L., Biktemerova S., Bisconti F., Blanc N., Blecki J., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Briz S., Bruno A., Caballero K. S., Cafagna F., Campana D., Capdevielle J-N, Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano C., Catalano O., Cellino A., Chikawa M., Chiritoi G., Christl M. J., Connaughton V, Conti L., Cordero G., Cotto G., Crawford H. J., Cremonini R., Csorna S., Cummings A., Dagoret-Campagne S., de Castro A. J., De Donato C., de la Taille C., De Santis C., del Peral L., Di Martino M., Damian A. Diaz, Djemil T., Dutan I, Ebersoldt A., Ebisuzaki T., Engel R., Eser J., Fenu F., Fernandez-Gonzalez S., Ferrarese S., Flamini M., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fujimoto J., Fukushima M., Galeotti P., Garcia-Ortega E., Garipov G., Gascon E., Genci J., Giraudo G., Gonzalez Alvarado C., Gorodetzky P., Greg R., Guarino F., Guzman A., Hachisu Y., Haiduc M., Harlov B., Haungs A., Hernandez Carretero J., Hidber Cruz W., Ikeda D., Inoue N., Inoue S., Isgro F., Itow Y., Jammer T., Jeong S., Joven E., Judd E. G., Jung A., Jochum J., Kajino F., Kajino T., Kalli S., Kaneko I, Karadzhov Y., Karczmarczyk J., Katahira K., Kawai K., Kawasaki Y., Kedadra A., Khales H., Khrenov B. A., Kim Jeong-Sook, Kim Soon-Wook, Kleifges M., Klimov P. A., Kolev D., Krantz H., Kreykenbohm I, Krizmanic J. F., Kudela K., Kurihara Y., Kusenko A., Kuznetsov E., La Barbera A., Lachaud C., Lahmar H., Lakhdari F., Larsson O., Lee J., Licandro J., Lopez Campano L., Lopez F., Maccarone M. C., Mackovjak S., Mahdi M., Maravilla D., Marcelli L., Marcos J. L., Marini A., Marszal W., Martens K., Martin Y., Martinez O., Martucci M., Masciantonio G., Mase K., Mastafa M., Matev R., Matthews J. N., Mebarki N., Medina-Tanco G., Mendoza M. A., Menshikov A., Merino A., Meseguer J., Meyer S. S., Mimouni J., Miyamoto H., Mizumoto Y., Monaco A., Morales de los Rios J. A., Moretto C., Nagataki S., Naitamor S., Napolitano T., Nava R., Neronov A., Nomoto K., Nonaka T., Ogawa T., Ogio S., Ohmori H., Olinto A. V, Orleanski P., Osteria G., Pagliaro A., Painter W., Panasyuk M. I, Panico B., Parizot E., Park I. H., Pastircak B., Patzak T., Paul T., Perez-Grande I, Perfetto F., Peter T., Picozza P., Pindado S., Piotrowski L. W., Piraino S., Placidi L., Plebaniak Z., Pliego S., Pollini A., Polonsky Z., Popescu E. M., Prat P., Prevot G., Prieto H., Puehlhofer G., Putis M., Rabanal J., Radu A. A., Reyes M., Rezazadeh M., Ricci M., Rodriguez Frias M. D., Ronga F., Roudil G., Rusinov I, Rybczynski M., Sabau M. D., Saez Cano G., Sagawa H., Sahnoune Z., Saito A., Sakaki N., Salazar H., Sanchez Balanzar J. C., Sanchez J. L., Santangelo A., Sanz-Andres A., Sanz Palomino M., Saprykin O., Sarazin F., Sato M., Schanz T., Schieler H., Scotti V, Selmane S., Semikoz D., Serra M., Sharakin S., Shimizu H. M., Shinozaki K., Shirahama T., Spataro B., Stan I, Sugiyama T., Supanitsky D., Suzuki M., Szabelska B., Szabelski J., Tajima N., Tajima T., Takahashi Y., Takami H., Takeda M., Takizawa Y., Talai M. C., Tenzer C., Thomas S. B., Tibolla O., Tkachev L., Tokuno H., Tomida T., Tone N., Toscano S., Traiche M., Tsenov R., Tsunesada Y., Tsuno K., Tubbs J., Turriziani S., Uchihori Y., Vaduvescu O., Valdes-Galicia J. F., Vallania P., Vankova G., Vigorito C., Villasenor L., Vlcek B., von Ballmoos P., Vrabel M., Wada S., Watanabe J., Watts J. Jr., Weber M., Weigand Munoz R., Weindl A., Wiencke L., Wille M., Wilms J., Wlodarczyk Z., Yamamoto T., Yang J., Yano H., Yashin I. V, Yonetoku D., Yoshida S., Young R., Zgura I. S., Zotov M. Yu, Marchi A. Zuccaro

    ASTROPARTICLE PHYSICS   Vol. 111   page: 54 - 71   2019.9

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    DOI: 10.1016/j.astropartphys.2018.10.008

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  72. Generation of He-4(2)* Clusters via Neutron-He-3 Absorption Reaction Toward Visualization of Full Velocity Field in Quantum Turbulence

    Matsushita T., Sonnenschein V., Guo W., Hayashida H., Hiroi K., Hirota K., Iguchi T., Ito D., Kitaguchi M., Kiyanagi Y., Kokuryu S., Kubo W., Saito Y., Shimizu H. M., Shinohara T., Suzuki S., Tomita H., Tsuji Y., Wada N.

    JOURNAL OF LOW TEMPERATURE PHYSICS   Vol. 196 ( 1-2 ) page: 275 - 282   2019.7

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    DOI: 10.1007/s10909-018-02112-3

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  73. First ultracold neutrons produced at TRIUMF

    Ahmed S., Altiere E., Andalib T., Bell B., Bidinosti C. P., Cudmore E., Das M., Davis C. A., Franke B., Gericke M., Giampa P., Gnyp P., Hansen-Romu S., Hatanaka K., Hayamizu T., Jamieson B., Jones D., Kawasaki S., Kikawa T., Kitaguchi M., Klassen W., Konaka A., Korkmaz E., Kuchler F., Lang M., Lee L., Lindner T., Madison K. W., Makida Y., Mammei J., Mammei R., Martin J. W., Matsumiya R., Miller E., Mishima K., Momose T., Okamura T., Page S., Picker R., Pierre E., Ramsay W. D., Rebenitsch L., Rehm F., Schreyer W., Shimizu H. M., Sidhu S., Sikora A., Smith J., Tanihata I., Thorsteinson B., Vanbergen S., van Oers W. T. H., Watanabe Y. X.

    PHYSICAL REVIEW C   Vol. 99 ( 2 )   2019.2

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    DOI: 10.1103/PhysRevC.99.025503

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  74. Pendellosung interferometry by using pulsed neutrons (vol 908, pg 78, 2018)

    Itoh Shigeyasu, Nakaji Masaya, Uchida Yuya, Kitaguchi Masaaki, Shimizu Hirohiko M.

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 918   page: 99 - 99   2019.2

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    DOI: 10.1016/j.nima.2018.10.218

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  75. Future Prospect 2

    Shimizu Hirohiko M.

    hamon   Vol. 29 ( 1 ) page: 41 - 43   2019.2

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    <p>Analytic framework to quantitatively evaluate the performance of existing neutron scattering instruments would be valuable to find out new possibilities and potentials of slow neutron beams. A conceptual introduction of ongoing exploration for building up a framework is discussed.</p>

    DOI: 10.5611/hamon.29.1_41

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  76. Verification of the compound nuclear model for T-violation search

    Yamamoto T., Shimizu H.M., Ishizaki K., Niinomi Y., Kitaguchi M., Takada S., Koga J., Makise S., Yoshioka T., Kimura A., Sakai K., Oku T., Okudaira T., Endo S., Tani Y., Fujioka H., Yoshikawa H., Hirota K., Shima T.

    Proceedings of Science   Vol. 356   2019

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    Large sources of parity violation have been observed in compound nuclear reactions. These enhancements are described by the compound nuclear model, which can be used to describe the angular correlation of γ-rays produced in (n; γ) reactions in medium-heavy nuclei. It has also been suggested that these same reactions could lead to a similar enhancement in time reversal violating processes. Therefore, we are interested in verifying the compound nuclear model by studying the (n; γ) reaction using polarized neutrons. In this paper, we discuss the installation and characterization of a neutron polarizer used in the (n; γ) measurement with transversely polarized neutrons.

    DOI: 10.22323/1.356.0042

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  77. Polarized lanthanum target for the t-violation search in slow neutron transmission

    Ishizaki K., Shimizu H.M., Kitaguchi M., Matsushita T., Iinuma M., Kohri H., Yoshikawa H., Yosoi M., Shima T., Iwata T., Miyachi Y., Ishimoto S., Fujita M., Ikeda Y.

    Proceedings of Science   Vol. 379   2019

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    The Nd3+ doped LaAlO3 crystal is a good candidate of a polarized 139La target for the search of the P-odd and T-odd interaction in the low-energy neutron absorption of 139La. As the first step for realizing the polarized 139La target, we grow the undoped LaAlO3 crystal and the La1−xNdxAlO3 (x = 5 ×10−4) crystal by floating-zone method with four halogen lamps. The ESR measurements of Nd3+ in the latter crystal indicated that the linewidth was about 6 gauss, whose value is the same as the crystal in which 50 % 139La polarization was achieved in the previous DNP experiment. As the result, the crystals grown by this method can be applicable to the target study for the T-violation search.

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  78. Development of the neutron polarizer for the T-violation search using compound nuclei

    Okudaira T., Oku T., Sakai K., Ino T., Hayashida H., Hiroi K., Shinohara T., Kakurai K., Aizawa K., Shimizu H.M., Kitaguchi M., Yamamoto T.

    Proceedings of Science   Vol. 356   2019

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    The fundamental parity violation is enhanced by 106 times at maximum in several neutron induced compound nuclei. There is a theoretical prediction that fundamental T-violating effects can be also largely enhanced in compound nuclei implying that T-violation can be searched for by making very sensitive measurements. A T-violation search experiment using compound nuclei is planned at J-PARC. Polarized epithermal neutron beam, polarized nuclear target, and high count rate neutron detector are necessary for the experiment, and therefore a development of the neutron polarizer using polarized 3He is ongoing at J-PARC in JAEA. Recently, a clean vacuum system to fabricate 3He spin filters was constructed, and several 3He spin filters were fabricated. The current status of the development of the 3He spin filter was reported.

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  79. Experiment of unknown interaction search using neutron-rare gas scattering in J-PARC / BL 05 - 2018Data analysis -

    Hiromoto Masayuki, Shima Tatushi, Simizu Hirohiko M., Hirota Katuya, Kitaguti Masaaki, Haddock C. C., Snow W. M., Yoshioka Tamaki, Mishima Kenji, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 306 - 306   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_306

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  80. Report of the MTV experiment 2

    Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Goto F., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Tamura K., Totsuka Y., Nakaya Y., Baba H., Masuda H., Yamawaki Y., Yokohashi M., Yoshida T., Watanabe E., Behr John A, Pearson Matthew, Levy Phil, Murata J.

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 304 - 304   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_304

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  81. Report of the MTV experiment 1

    Goto F., Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tamura K., Totsuka Y., Nakaya Y., Baba H., Masuda H., Murata J., Yamawaki Y., Yokohashi M., Watanabe E., Behr John A, Pearson Matthew, Levy Phil

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 303 - 303   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_303

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  82. Neutron lifetime measurement at J-PARC/BL05: SFC upgrade

    Okabe Hiroki, Hino Masahiro, Hirota Katsuya, Ieki Sei, Ino Takashi, Iwashita Yoshihisa, Kitaguchi Masaaki, Kitahara Ryunosuke, Koga Jun, Mishima Kenji, Morishita Aya, Nakano Yusuke, Nagakura Naoki, Oda Tatsuro, Oide Hideyuki, Otono Hidetoshi, Seki Yoshichika, Sekiba Daiichiro, Shima Tatsushi, Shimizu Hirohiko M., Sumi Naoyuki, Sumino Hirochika, Taketani Kaoru, Tomita Tatsuhiko, Uehara Hideaki, Yamada Takahito, Yamashita Satoru, Yokohashi Mami, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 94 - 94   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_94

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  83. Neutron lifetime measurement at J-PARC BL05: SFC upgrade

    Okabe Hiroki, Hirota Katsuya, Ieki Sei, Ino Takashi, Iwashita Yoshihisa, Kitaguchi Masaaki, Kitahara Ryunosuke, Koga Jun, Mishima Kenji, Morishita Aya, Nakano Yusuke, Nagakura Naoki, Oide Hideyuki, Otono Hidetoshi, Seki Yoshichika, Sekiba Daiichiro, Shima Tatsushi, Shimizu Hirohiko M., Sumi Naoyuki, Sumino Hirochika, Taketani Kaoru, Tomita Tatsuhiko, Uehara Hideaki, Yamada Takahito, Yamashita Satoru, Yokohashi Mami, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 163 - 163   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_163

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  84. Measurement of the effective electric field of SiO<sub>2</sub> and the plan for the nEDM search

    Itoh Shigeyasu, Hishida Mayu, Fukumura Seiso, Kitaguchi Masaaki, Shimizu Hirohiko M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 266 - 266   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_266

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  85. Experimental performance evaluation of the 2nd ultracold neutron rebuncher and the result

    Imajo Sohei, Iwashita Yoshihisa, Mishima Kenji, Kitaguchi Masaaki, Shimizu Hirohiko M., Ino Takashi, Yamashita Satoru, Hirota Katsuya, Goto Fumiya, Fuwa Yasuhiro, Katayama Ryo

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 93 - 93   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_93

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  86. Development of nuclear polarized targets for the T-violation experiments in compound nuclei

    Iinuma M., Shimizu H. M., Ikegami H., Ikeda Y., Ishizaki K., Ishiguro R., Ishimoto S., Ino T., Iwata T., Uesaka T., Otomo T., Oku T., Kanda H., Kitaguchi M., Kohri H., Shima T., Takahashi D., Takahashi Y., Fujita M., Matsushita T., Miyachi Y., Yosoi M., Wada N., NOPTREX collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 277 - 277   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_277

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  87. Measurement of the inner electric field to search the neutron EDM by the crystal diffraction 2

    Uchida Yuya, Itoh Shigeyasu, Fukumura Seiso, Yamamoto Nana, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 298 - 298   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_298

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  88. Evaluation of Crystals by for Neutron EDM Measurement Using Crystal Diffraction

    hishida Mayu, Itoh Shigeyasu, Fukumura Seiso, kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 267 - 267   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_267

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  89. Evaluation of Crystals by X-Ray for Neutron EDM Measurement Using Crystal Diffraction

    Fukumura Seiso, Itoh Shigeyasu, Uchida Yuya, Yamamoto Nana, kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 299 - 299   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_299

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  90. Construction of the imaging port at Nagoya University Accelerator-driven Neutron Source

    Awano Shogo, Ichikawa Go, Imajo Sohei, Iwashita Yoshihisa, Uritani Akira, Kitaguchi Masaaki, Kiyanagi Yoshiaki, Shimizu Hirohiko, Tsuchikawa Yusuke, Tsuchida Kazuki, Tsurita Yukio, Hirota Katsuya, Miwata Yasuhiko, Yamagata Yutaka, Yamazaki Atsushi, Yoshihashi Sachiko, Watanabe Kenichi

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 416 - 416   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_416

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  91. The development of <sup>139</sup>La polarized target as a low energy neutron beam target.

    Ishizaki K., Shimizu H. M., Kitaguchi M., Matsushita T., Iinuma M., Fujita M., Ikeda Y., Kohri H., Ikegami H., Ishiguro R., Ishimoto S., Ino T., Iwata T., Uesaka T., Otomo T., Oku T., Kanda H., Shima T., Takahashi D., Takahashi Y., Miyachi Y., Yosoi M., Wada N., NOPTREX

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 299 - 299   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_299

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  92. High resolution tracker development for search for neutron-antineutron oscillation

    Hisamura Sara, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 323 - 323   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_323

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  93. Proof-of-principle experiment for study of new intermediate range interaction by means of neutron coherent scattering

    Hiromoto Masayuki, Hori Taichi, Haddock Christopher C., Oi Noriko, Hirota Katsuya, Ino Takashi, Kitaguchi Masaaki, Mishima Kenji, Shima Tatsushi, Shimizu Hirohiko M., Snow W. Michael, Hara Shuhei, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 269 - 269   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_269

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  94. Unknown Interaction Search with Neutron Diffraction

    Fujiie T., Shimizu H. M., Kitaguchi M., Yamagata Y., Hosobata T., Takeda M., Young Albert, Heacock Benjamin, Huber Michael

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 95 - 95   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_95

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  95. unknown interaction Search with neutron diffraction

    Fujiie T., Shimizu H. M., Kitaguchi M., Yamagata Y., Hosobata T., Takeda M., Heacock Benjamin, Young Albert, Huber Michael

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.1 ( 0 ) page: 162 - 162   2019

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    DOI: 10.11316/jpsgaiyo.74.1.0_162

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  96. Development of Pulsed Neutron Corresponding Interferometer

    Yamamoto Nana, Kitaguchi Masaaki, Shimizu Hirohiko, Seki Yoshichika, Mishima Kenji

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2 ( 0 ) page: 265 - 265   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_265

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  97. A cold/ultracold neutron detector using fine-grained nuclear emulsion with spatial resolution less than 100 nm

    Naganawa N., Ariga T., Awano S., Hino M., Hirota K., Kawahara H., Kitaguchi M., Mishima K., Shimizu H. M., Tada S., Tasaki S., Umemoto A.

    EUROPEAN PHYSICAL JOURNAL C   Vol. 78 ( 11 )   2018.11

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    DOI: 10.1140/epjc/s10052-018-6395-7

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  98. Pendellosung interferometry by using pulsed neutrons Reviewed

    Itoh Shigeyasu, Nakaji Masaya, Uchida Yuya, Kitaguchi Masaaki, Shimizu Hirohiko M

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 908   page: 78 - 81   2018.11

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    DOI: 10.1016/j.nima.2018.08.043

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  99. The general relativistic effects on the magnetic moment in Earth's gravity (vol 2018, 063B07, 2018) Reviewed

    Morishima Takahiro, Futamase Toshifumi, Shimizu Hirohiko M

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   Vol. 2018 ( 8 )   2018.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/ptep/pty085

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  100. On the Collaboration between PASJ and JSNS for the Construction of Compact and Medium-sized Accelerator Driven Neutron Sources

    Hirota Katsuya, Shimizu Hirohiko M., Iwashita Yoshihisa, Naito Fujio

    Journal of the Particle Accelerator Society of Japan   Vol. 15 ( 2 ) page: 69 - 72   2018.7

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    <p>JSNS hopes to build compact and medium-sized accelerator-driven neutron sources and to construct regional bases for neutron research. To construct these neutron facilities, JSNS is calling for collaboration with PASJ.</p>

    DOI: 10.50868/pasj.15.2_69

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  101. Search for deviations from the inverse square law of gravity at nm range using a pulsed neutron beam Reviewed

    Christopher C. Haddock, Noriko Oi, Katsuya Hirota, Takashi Ino, Masaaki Kitaguchi, Satoru Matsumoto, Kenji Mishima, Tatsushi Shima, Hirohiko M. Shimizu, W. Michael Snow, Tamaki Yoshioka

    Physical Review D   Vol. 97 ( 6 )   2018.3

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    © 2018 American Physical Society. We describe an experimental search for deviations from the inverse-square law of gravity at the nanometer length scale using neutron scattering from noble gases on a pulsed slow neutron beam line. By measuring the neutron momentum transfer (q) dependence of the differential cross section for xenon and helium and comparing to their well-known analytical forms, we place an upper bound on the strength of a new interaction as a function of interaction length λ which improves upon previous results in the region λ<0.1 nm, and remains competitive in the larger-λ region. A pseudoexperimental simulation is developed for this experiment and its role in the data analysis is described. We conclude with plans for improving sensitivity in the larger-λ region.

    DOI: 10.1103/PhysRevD.97.062002

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  102. Plan for T-Violation search in a compound nucleus

    Yamamoto Tomoki, Shimizu Hirohiko M., Kitaguchi Masaaki, Hirota Katsuya, Ishizaki Kohei, Endo Shunsuke, Sato Takumi, Takada Shusuke, Koga Jun, Yoshioka T., Ino Takashi, Haddock Christopher, Asahi Koichiro, Momose Takamasa, Iwata Takahiro, Sakai Kenji, Kimura Atsushi, Okudaira Takuya, Oku Takayuki, Hino Masahiro, Shima Tatsushi, Yamagata Yutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 67 - 67   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_67

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  103. Measurement of neutron two-dimensional scintillation detector

    Akagi T., Simizu H. M., Kitaguchi M., Hirota K., Okabe H., Niinomi Y., Hukumura S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 345 - 345   2018

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.73.1.0_345

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  104. Simulations of upstream optics for neutron lifetime measurement at J-PARC

    Okabe Hiroki, Nakano Yusuke, Tomita Tatsuhiko, Uehara Hideaki, Koga Jun, Sumi Naoyuki, Otono Hidetoshi, Yoshioka Tamaki, Yamashita Satoru, Ieki Sei, Nagakura Naoki, Yamada Takahito, Sumino Hiroshi, Shimizu Hirohiko M., Hirota Katsuya, Kitaguchi Masaaki, Iwashita Yoshihisa, Kitahara Ryunosuke, Shima Tatsushi, Sekiba Daiichiro, Seki Yoshichika, Oide Hideyuki, Ino Takashi, Taketani Kaoru, Mishima Kenji

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 346 - 346   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_346

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  105. Academic Applications of Neutrons

    SHIMIZU Hirohiko M.

    The Review of Laser Engineering   Vol. 46 ( 11 ) page: 647   2018

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    Applications of the neutron beam in academic research fields are briefly summarized over material
    researches, nuclear astrophysics and fundamental physics on the basis of existing research activities
    currently in progress.

    DOI: 10.2184/lsj.46.11_647

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  106. Development of neutron spin filter for T violation search

    Sato Takumi, Shimizu Hirohiko M., Kitaguchi Masaaki, Hirota Katsuya, Ishizaki Kohei, Endo Shunsuke, Yamamoto Tomoki, Takada Shusuke, Koga Jun, Yoshioka Tamaki, Ino Takashi, Haddock Christopher, Asahi Koichiro, Momose Takamasa, Iwata Takahiro, Sakai Kenji, Kimura Atsushi, Okudaira Takuya, Oku Takayuki, Hino Masahiro, Shima Tatsushi, Yamagata Yutaka, Hattori Mineyuki

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 69 - 69   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_69

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  107. Verification of the dynamical diffraction for searching of nEDM by using crystal diffraction

    Nakaji Masaya, Itoh Shigeyasu, Uchida Yuya, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 388 - 388   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_388

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  108. Measurement of the inner electric field to search the neutron EDM by the crystal diffraction

    Uchida Yuya, Itoh Shigeyasu, Fukumura Seiso, Yamamoto Nana, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 124 - 124   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_124

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  109. For measurement of the inner electric field to search the neutron EDM by the crystal diffraction

    Uchida Yuya, Itoh Shigeyasu, Nakaji Masaya, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 389 - 389   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_389

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  110. Development of the Neutron Spin Filter with Triplet-DNP for T-violation search in Compound nucleus

    Takada S., Koga J., Yoshioka T., Uesaka T., Tateishi K., Otake Y., Ikeda Y., Wakabayashi Y., Shimizu H. M., Hirota K., Haddock C., Okudaira T., Oi N., Ito I., Yamamoto T., Ishizaki K., Endo S., Sato T., Kitaguchi M., Sakai K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 404 - 404   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_404

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  111. Theγ-ray angular distribution of <sup>81</sup>Br(n,γ) reaction for T-Violatio search by using compound-nucleus resonance

    Endo Shunsuke, Shimizu Hirohiko M., Kitaguchi Masaaki, Hirota Katsuya, Yamamoto Tomoki, Ishizaki Kohei, Sato Takumi, Takada Shusuke, Koga Jun, Yoshioka Tamaki, Ino Takashi, Haddock Christopher, Asahi Koichiro, Momose Takamasa, Iwata Takahiro, Sakai Kenji, Kimura Atsushi, Okudaira Takuya, Oku Takayuki, Hino Masahiro, Shima Tatsushi, Yamagata Yutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 68 - 68   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_68

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  112. The development of polarized target for T-Violation search in a compound nucleus

    Ishizaki Kohei, Shimizu Hirohiko M., Kitaguchi Masaaki, Hirota Katsuya, Yamamoto Tomoki, Endo Shunsuke, Sato Takumi, Takada Shusuke, Koga Jun, Yoshioka Tamaki, Ino Takashi, Haddock Christopher, Asahi Koichiro, Momose Takamasa, Iwata Takahiro, Sakai Kenji, Kimura Atsushi, Okudaira Takuya, Oku Takayuki, Hino Masahiro, Shima Tatsushi, Yamagata Yutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 70 - 70   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_70

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  113. Report of the MTV Run-2017

    Goto F., Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tamura K., Totsuka Y., Nakatani Y., Baba H., Masuda H., Murata J., Yamawaki Y., Yokohashi M., Watanabe E., Behr John A, Pearson Matthew, Levy Phil

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 401 - 401   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_401

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  114. Neutron lifetime measurement at J-PARC/BL05 : operation in low gas pressure

    Tomita Tatsuhiko, Uehara Hideaki, Koga Jun, Sumi Naoyuki, Otono Hidetoshi, Yoshioka Tamaki, Yamashita Satoru, Ieki Sei, Nagakura Naoki, Yamada Takahito, Sumino Hiroshi, Shimizu Hirohiko M., Hirota Katsuya, Kitaguchi Masaaki, Iwashita Yoshihisa, Kitahara Ryunosuke, Shima Tatsushi, Sekiba Daiichiro, Seki Yoshichika, Oide Hideyuki, Ino Takashi, Taketani Kaoru, Mishima Kenji

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.1 ( 0 ) page: 114 - 114   2018

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    DOI: 10.11316/jpsgaiyo.73.1.0_114

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  115. Neutron lifetime measurement at J-PARC/BL05: Present status(2018)

    Mishima Kenji, Hirota Katsuya, Ieki Sei, Ino Takashi, Iwashita Yoshihisa, Kitaguchi Masaaki, Kitahara Ryunosuke, Koga Jun, Morishita Aya, Nagakura Naoki, Nakano Yusuke, Oide Hideyuki, Okabe Hiroki, Otono Hidetoshi, Seki Yoshichika, Sekiba Daiichiro, Shima Tatsushi, Shimizu Hirohiko M., Sumi Naoyuki, Sumino Hirochika, Taketani Kaoru, Tomita Tatsuhiko, Uehara Hideaki, Yamada Takahito, Yamashita Satoru, Yokohashi Mami, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 72 - 72   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_72

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  116. Neutron lifetime measurement at J-PARC/BL05: Upgrade

    Uehara Hideaki, Sumi Naoyuki, Tomita Tatuhiko, Otono Hidetoshi, Yoshioka Tamaki, Yamashita Satoru, Nagakura Naoki, Shimizu Hirohiko M., Hirota Katsuya, Nakano Yusuke, Okabe Hiroki, Kitaguchi Masaaki, Iwashita Yoshihisa, Seki Yoshichika, Oide Hideyuki, Ino Takashi, Taketani Kaoru, Mishima Kenji

    Meeting Abstracts of the Physical Society of Japan   Vol. 73.2 ( 0 ) page: 73 - 73   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_73

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  117. The International Conference on Neutron Optics (NOP2017) in Nara

    Kiyanagi Y., Kakurai K., Shimizu H., Kitaguchi M., Oku T.

    Neutron News   Vol. 28 ( 4 ) page: 18 - 20   2017.10

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    DOI: 10.1080/10448632.2017.1378038

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  118. Concentration of the velocity distribution of pulsed neutron beams Reviewed

    Masaaki Kitaguchi, Yoshihisa Iwashita, Hirohiko M. Shimizu

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   Vol. 2017 ( 4 )   2017.4

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    The velocity of neutrons from a pulsed neutron source is well defined as a function of their arrival time. An electro-magnetic neutron accelerator/decelerator synchronized with the neutron time-of-flight is capable of selectively changing the neutron velocity and concentrating the velocity distribution. The possible enhancement of the neutron intensity at a specific neutron velocity by orders of magnitude is discussed, together with an experimental design.

    DOI: 10.1093/ptep/ptx029

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  119. Developments of high count rate neutron detector for T-Violation search

    Endo Shunsuke, Shimizu Hirohiko M., Kitaguchi Masaaki, Hirota Katsuya, Okudaira Takuya, Oi Noriko, Ito Ikuya, Yamamoto Tomoki, Haddock Christopher, Takada Shusuke, Koga Jun, Yoshioka Tamaki, Ino Takashi, Asahi Koichiro, Momose Takamasa, Iwata Takahiro, Sakai Kenji, Oku Takayuki, Kimura Atsushi, Hino Masahiro, Shima Tatsushi, Yamagata Yutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 259 - 259   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_259

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  120. Measurement of the inner electric field of Bi<sub>12GeO</sub>20_for the measurement of EDM of a neutron(Ⅱ)

    Itoh Shigeyasu, Nakaji Masaya, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 269 - 269   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_269

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  121. Measurement of the inner electric field of Bi<sub>12</sub>GeO<sub>20</sub>for the measurement of EDM of a neutron(Ⅱ)

    Itoh Shigeyasu, Nakaji Masaya, Uchida Yuya, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 282 - 282   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_282

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  122. Construction of the Nagoya University Accelerator-driven Neutron Source (NUANS)

    Tsuchikawa Y., Abo K., Ichikawa G., Ito I., Imajo S., Iwashita Y., Uritani A., Kitaguchi M., Kiyanagi Y., Sato K., Shimizu H. M., Takeshita H., Tsuchida K., Tsurita Y., Hirota K., Furuzawa D., Miwata Y., Yamagata Y., Yamazaki A., Yoshihashi S., Watanabe K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 228 - 228   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_228

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  123. High Count Rate Neutron Detector for Search of T-Violation

    Endo S., Okudaira T., Shimizu H. M., Kitaguchi M., Hirota K., Okada A., Ito I., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 356 - 356   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_356

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  124. Simulation of searching of nEDM by using crystal-diffraction method

    Nakaji Masaya, Itoh Shigeyasu, Uchida Yuya, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 283 - 283   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_283

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  125. Design of experiment of search for the neutron EDM using crystal diffraction method.

    Nakaji Masaya, Itoh Shigeyasu, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 270 - 270   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_270

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  126. Analysis of (n,γ) reactions of 117Sn and 115In for T violation search

    Koga J., Takada S., Yoshioka T., Shimizu H. M., Hirota K., Okudaira T., Oi N., Ito I., Yamamoto T., Endo S., Haddock C., Kitaguchi M., Kimura A., Sakai K., Ino T., Asahi K., Momose T., Iwata T., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 257 - 257   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_257

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  127. Requirements to the Polarized Nuclear Targets for the T-violation Experiment in Compound Nuclear States

    Shimizu H. M., Gudkov V., Snow W. M., Bowman J. D., Kitaguchi M., Hirota K., Haddock C. C., Okudaira T., Oi N., Itoh I., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Miyachi Y., Sakai K., Hino M., Shima T., Kohri H., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 261 - 261   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_261

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  128. Beharvior of Neutron Polarization in Polarized Nuclear Targets for the T-violation Experiment in Compound Nuclear States

    Shimizu H. M., Gudkov V., Snow W. M., Bowman J. D., Kitaguchi M., Hirota K., Okudaira T., Okada A., Itoh I., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iinuma M., Hautle P., Iwata T., Miyachi Y., Sakai K., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 301 - 301   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_301

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  129. Precise measurement of the angular correlations in the (n, γ) reaction for T violation search

    Okudaira T., Shimizu H. M., Kitaguchi M., Hirota K., Okada A., Ito I., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 300 - 300   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_300

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  130. Precise measurement of the angular correlations in the 139La(n, γ) reaction for T violation search

    Okudaira T., Shimizu H. M., Kitaguchi M., Hirota K., Haddock C. C., Oi N., Ito I., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 256 - 256   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_256

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  131. Development of neutron polarizer for T-Violation searching in compound nucleus

    Yamaomto T., Shimizu H. M., Kitaguchi M., Hirota K., Okudaira T., Okada A., Ito I., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 303 - 303   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_303

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  132. Measurement of P-violation using polarized neutrons for T-violation measurement in the compound nucleus resonance

    Yamamoto Tomoki, Shimizu Hirohiko M., Kitaguchi Masaaki, Hirota Katsuya, Okudaira Takuya, Oi Noriko, Endo Shunsuke, Haddock Christopher, Takada Shusuke, Koga Jun, YOSHIOKA TAMAKI, Ino Takashi, Asahi Koichiro, Momose Takamasa, Iwata Takahiro, Sakai Kenji, Kimura Atsushi, Oku Takayuki, Hino Masahiro, Shima Tatsushi, Yamagata Yutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 258 - 258   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_258

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  133. Search for CP-violation effects in compound neutron resonance at J-PARC

    Kitaguchi M., Shimizu H. M., Hirota K., Okudaira T., Okada A., Ito I., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 299 - 299   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_299

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  134. Search for CP-violation effects in compound neutron resonance at J-PARC

    Kitaguchi M., Shimizu H. M., Hirota K., Okudaira T., Oi N., Ito I., Yamamoto T., Endo S., Haddock C., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 255 - 255   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_255

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  135. Analysis of data of (n, γ) reaction of Br for T violation search

    Ito I., Shimizu H. M., Kitaguchi M., Hirota K., Okudaira T., Okada A., Yamamoto T., Takada S., Koga J., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Kimura A., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 302 - 302   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_302

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  136. The design of the beam line of the Nagoya University accelerator-driven neutron source

    Ito I., Furusawa D., Hirota K., Ichikawa G., Iwashita Y., Kitaguchi M., Kiyanagi Y., Menjo Y., Miwata Y., Shimizu H.M., Tsuchida K., Tsuchikawa Y., Tsurita Y., Uritani A., Watanabe K., Yamagata Y., Yamazaki A., Yoshihashi S.

    Proceedings of Science   Vol. 2017-January   2017

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    Publisher:Proceedings of Science  

    The Nagoya University Accelerator driven Neutron Source (NUANS) are now constructing at main campus of Nagoya University. The electrostatic accelerator is used with the maximum proton energy and power of 2.8MeV, 15mA(42kW) respectively. Two neutron beam lines are planned at NUANS. The first beam line is dedicated to BNCT. The second beam line is designed for research and development of neutron devices and neutron imaging. The neutrons used for the 2nd beam line are generated by using the (p, n) reaction of beryllium. We designed a compact target station for the 2nd beam line with the dimension of 90cm×90cm×95cm by using radiation shielding simulation. We considered neutron beam extraction with the cross section of 10cm×10cm for radiography at the 2nd beam line. The neutron flux is expected to be about 104n cm-2s-1 with the energy less than 0.1 eV at the position of 2m from the neutron source. We also calculated the proton beam transport from the exit of the accelerator to the neutron production target of the 2nd beam line.

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  137. Measurement of neutron scattering from noble gas to search for a short-range unknown force

    Oi Noriko, Shimizu Hirohiko M., Hirota Katsuya, Kitaguchi Masaaki, Haddock C. C., Snow W. M., Yoshioka Tamaki, Matsumoto Satoru, Mishima Kenji, Ino Takashi, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 298 - 298   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_298

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  138. Measurement of neutron lifetime at J-PARC/BL05 : Estimation of backgrounds

    Ieki Sei, Yamada Takahito, Nagakura Naoki, Yamashita Satoru, Seki Yoshichika, Sumino Hirochika, Shimizu Hirohiko M., Hirota Katsuya, Yokohashi Mami, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Tomita Tatsuhiko, Sumi Naoyuki, Morishita Aya, Koga Jun, Iwashita Yoshihisa, Kitahara Ryunosuke, Oide Hideyuki, Shima Tatsushi, Mishima Kenji, Ino Takashi, Taketani Kaoru

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 65 - 65   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_65

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  139. Measurement of neutron lifetime at J-PARC/BL05 : The analysis result of neutron capture gamma rays

    Koga Jun, Sumi Naoyuki, Takada Shusuke, Tomita Tatsuhiko, Morishita Aya, Otono Hidetoshi, Yoshioka Tamaki, Kitahara Ryunosuke, Iwashita Yoshihisa, Yamada Takahito, Ieki Sei, Nagakura Naoki, Yamashita Satoru, Seki Yoshichika, Sumino Hirochika, Shimizu Hirohiko M., Hirota Katsuya, Okudaira Takuya, Yokohashi Mami, Kitaguchi Masaaki, Mishima Kenji, Ino Takashi, Taketani Kaoru, Kimura Atsushi, Oide Hideyuki, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 64 - 64   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_64

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  140. Neutron lifetime measurement at J-PARC/BL05 : Performance evaluation of large acceptance neutron optics

    Yokohashi Mami, Hirota Katsuya, Shimizu Hirohiko, Kitaguchi Masaaki, Kitahara Ryunosuke, Iwashita Yoshihisa, Yoshioka Tamaki, Otono Hidetoshi, Yamada Takahito, Yamashita Satoru, Seki Yoshichika, Oide Hideyuki, Mishima Kenji, Taketani Kaoru, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 63 - 63   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_63

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  141. Neutron lifetime measurement at J-PARC/BL05: Present status and results

    Mishima Kenji, Hirota Katsuya, Ieki Sei, Ino Takashi, Iwashita Yoshihisa, Kitaguchi Masaaki, Kitahara Ryunosuke, Koga Jun, Morishita Aya, Nagakura Naoki, Oide Hideyuki, Otono Hidetoshi, Seki Yoshichika, Sekiba Daiichiro, Shima Tatsushi, Shimizu Hirohiko M., Sumi Naoyuki, Sumino Hirochika, Taketani Kaoru, Tomita Tatsuhiko, Yamada Takahito, Yamashita Satoru, Yokohashi Mami, Yoshioka Tamaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 75 - 75   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_75

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  142. Neutron Lifetime Measurement at J-PARC/BL05 : Development of the amplifier

    Tomita T., Sumi N., Morishita A., Koga J., Otono H., Yoshioka T., Kitahara R., Iwashita Y., Yamada T., Yamashita S., Hirota K., Shimizu H., Yokohashi M., Kitaguchi M., Oide H., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 73 - 73   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_73

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  143. Neutron Lifetime Measurement at J-PARC/BL05 : Tests of the new detector and amplifier

    Tomita T., Sumi N., Morishita A., Koga J., Otono H., Yoshioka T., Kitahara R., Iwashita Y., Yamada T., Yamashita S., Hirota K., Shimizu H., Yokohashi M., Kitaguchi M., Oide H., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 92 - 92   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_92

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  144. Neutron lifetime measurement at J-PARC/BL05: Beamline upgrade for high statistical measurements

    Kitahara Ryunosuke, Iwashita Yoshihisa, Shimizu Hirohiko M., Hirota Katsuya, Yokohashi Mami, Kitaguchi Masaaki, Yamashita Satoru, Yamada Takahito, Ieki Sei, Nagakura Naoki, Sumino Hirochika, Yoshioka Tamaki, Otono Hidetoshi, Tomita Tatsuhiko, Sumi Naoyuki, Morishita Aya, Koga Jun, Oide Hideyuki, Shima Tatsushi, Mishima Kenji, Ino Takashi, Taketani Kaoru, Seki Yoshichika, Sekiba Daiichiro

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 76 - 76   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_76

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  145. Measurement of neutron scattering from noble gas to search for a short-range unknown force at J-PARC -Data analysis-

    Oi Noriko, Shimizu Hirohiko M., Hirota Katsuya, Kitaguchi Masaaki, Haddock C. C., Snow W. M., Yoshioka Tamaki, Matsumoto Satoru, Mishima Kenji, Ino Takashi, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 263 - 263   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_263

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  146. Result of the Ultracold Neutron focus experiment by the UCN Rebuncher at J-PARC/MLF

    Imajo Sohei, Iwashita Yoshihisa, Mishima Kenji, Kitaguchi Masaaki, Shimizu Hirohiko M., Ino Takashi, Yamashita Satoru, Hirota Katsuya, Goto Fumiya, Fuwa Yasuhiro, Katayama Ryo, NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 77 - 77   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_77

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  147. Measurement of angular correlation of (n,gamma) reaction with polarized neutrons

    Yamamoto T., Shimizu H.M., Kitaguchi M., Hirota K., Okudaira T., Takada S., Okada A., Yoshioka T., Ino T., Sakai K., Asahi K., Momose T., Iwata T., Hino M., Shima T., Yamagata Y.

    Proceedings of Science   Vol. 2017-January   2017

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    Large enhanced P violation in a nuclear resonance reaction has been observed by using a polarized neutron beam. Enhanced CP violation is predicted to exist within the same nuclear reaction. We are now preparing to supply a polarized neutron beam for a CP violation search experiment. In the enhancement process of CP violation, we assume that the P violation of the compound nuclear state doesn't depend on the final state. However this assumption has not been verified yet. We plan to verify the assumption by measuring the 139La(n,g ) reaction with a polarized neutron beam at J-PARC MLF BL04. The supplied neutron beam will be polarized by using 3He spin filter, which will be installed into BL04. We present the states of development for 3He spin filter and study of the equipment in BL04.

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  148. Measurement of neutron scattering from noble gas to search for a short-range unknown force

    Noriko O.I., Shimizu H.M., Hirota K., Kitaguchi M., Haddock C.C., Snow W.M., Yoshioka T., Matsumoto S., Mishima K., Ino T., Shima T.

    Proceedings of Science   Vol. 2017-January   2017

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    We are searching for an unknown force that could couple to mass using neutron scattering from a noble gas. The neutron is a chargeless massive particle with a long lifetime, which consequently is suitable for the precise measurement of a small interaction with a range of the order of 1nm by measurements of the momentum transfer distribution. We measured neutron scattering at the low-divergence beam branch on the BL05 NOP beamline in the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC). We report recent experimental data.

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  149. Measurement of neutron scattering from noble gas to search for a short-range unknown force at J-PARC - Overview and Simulation Results

    Haddock C. C., Oi Noriko, Shimizu Hirohiko M., Hirota Katsuya, Kitaguchi Masaaki, Snow W. M., Yoshioka Tamaki, Matsumoto Satoru, Mishima Kenji, Ino Takashi, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.2 ( 0 ) page: 262 - 262   2017

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    DOI: 10.11316/jpsgaiyo.72.2.0_262

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  150. Report of the MTV Run-2016 II

    Goto F., Kitaguchi M., Shimizu H. M., Yokohashi M., Ozaki S., Kajihara T., Sakamoto Y., Shimizu Y., Masuda H., Murata J., Yamawaki Y., Watanabe E., Koshikawa A., Baba H., kawamura H., Openshaw Robert, Pearson Matthew

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 305 - 305   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_305

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  151. Report of the MTV Run2016 I

    Shimizu Y., Ozaki S., Kajihara T., Sakamoto Y., Masuda H., Murata J., Yamawaki Y., Watanabe E., Goto F., Kitaguchi M., Shimizu H. M., Yokohashi M., Koshikawa A., Baba H., Kawamura H., Openshaw Robert, Pearson Matthew

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 304 - 304   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_304

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  152. Measurement of the cross section of neutron resonance in <sup>139</sup>La

    Takeshita Hayato, Shimizu Hirohiko, Kitaguchi Masaaki, Hirota Katsuya, Ichikawa Go, Okudaira Takuya, Okada Anju, Goto Fumiya, Nagamoto Kosuke, Yamamoto Tomoki, Takada Shusuke, Yoshioka Tamaki, Ino Takashi, Asahi Koichiro, Momose Takamasa, Iwata Takahiri, Sakai Kenji, Hino Masahiri, Shima Tatsushi, Yamagata Yutaka, Kimura Atsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 72.1 ( 0 ) page: 360 - 360   2017

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    DOI: 10.11316/jpsgaiyo.72.1.0_360

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  153. Development of high spatial resolution cold/ultracold neutron detector using fine-grained nuclear emulsion

    Naganawaa N., Awano S., Hino M., Hirose M., Hirota K., Kawahara H., Kitaguchi M., Mishima K., Nagae T., Shimizu H.M., Tada S., Tasaki S., Umemoto A.

    Proceedings of Science   Vol. 2017-January   2017

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    We have been developing neutron detectors with spatial resolution of submicron to several tens of nanometers using fine-grained nuclear emulsion with nuclides with large neutron absorption cross sections such as 6Li and 10B. Those detectors were demonstrated their ability to detect cold and ultra-cold neutrons.

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  154. The MTV experiment: searching for T-violation in polarized Li-8 at TRIUMF

    Murata, J; Baba, H; Behr, JA; Goto, F; Inaba, S; Kawamura, H; Kitaguchi, M; Levy, CDP; Masuda, H; Nakaya, Y; Ninomiya, K; Onishi, J; Openshaw, R; Pearson, M; Sakamoto, Y; Shimizu, H; Shimizu, Y; Tanaka, S; Tanaka, Y; Tanuma, R; Totsuka, Y; Watanabe, E; Yokohashi, M

    HYPERFINE INTERACTIONS   Vol. 237 ( 1 )   2016.8

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    The MTV experiment (Mott Polarimetry for T-Violation Experiment) is running at TRIUMF, to search for a large T-violating transverse electron-polarization in polarized 8Li β-decay. We aim at reaching precision of 10−4 for the R-correlation, which is defined as a T-violating triple vector correlation in the β-decay rate function. A Mott polarimeter system using a CDC (Cylindrical Drift Chamber) is used to measure the left-right scattering asymmetry in the Mott scattering from a thin metal foil. In the present study, we aim to discuss systematic effects in Mott polarimetry using the CDC.

    DOI: 10.1007/s10751-016-1336-z

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  155. Neutron-antineutron oscillations: Theoretical status and experimental prospects

    Phillips, DG; Snow, WM; Babul, K; Banerjee, S; Baxter, DV; Berezhiani, Z; Bergevin, M; Bhattacharya, S; Brooijmans, G; Castellanos, L; Chen, MC; Coppola, CE; Cowsik, R; Crabtree, JA; Das, P; Dees, EB; Dolgov, A; Ferguson, PD; Frost, M; Gabrie, T; Gal, A; Gallmeier, F; Ganezer, K; Golubeva, E; Greene, G; Hartfiel, B; Hawari, A; Heilbronn, L; Johnson, C; Kamyshkov, Y; Kerbikov, B; Kitaguchi, M; Kopeliovich, BZ; Kopeliovich, VB; Kuzmin, VA; Liu, CY; McGaughey, P; Mocko, M; Mohapatra, R; Mokhov, N; Muhrer, G; Mumm, HP; Okun, L; Pattie, RW; Quigg, C; Ramberg, E; Ray, A; Roy, A; Ruggles, A; Sarkar, U; Saunders, A; Serebrov, AP; Shimizu, HM; Shrock, R; Sikdar, AK; Sjue, S; Striganov, S; Townsend, LW; Tschirhart, R; Vainshtein, A; Van Kooten, R; Wang, Z; Young, AR

    PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS   Vol. 612   page: 1 - 45   2016.2

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    The observation of neutrons turning into antineutrons would constitute a discovery of fundamental importance for particle physics and cosmology. Observing the n-n transition would show that baryon number (B) is violated by two units and that matter containing neutrons is unstable. It would provide a clue to how the matter in our universe might have evolved from the B = 0 early universe. If seen at rates observable in foreseeable nextgeneration experiments, it might well help us understand the observed baryon asymmetry of the universe. A demonstration of the violation of B-L by 2 units would have a profound impact on our understanding of phenomena beyond the Standard Model of particle physics. Slow neutrons have kinetic energies of a few meV. By exploiting new slow neutron sources and optics technology developed for materials research, an optimized search for oscillations using free neutrons from a slow neutron moderator could improve existing limits on the free oscillation probability by at least three orders of magnitude. Such an experiment would deliver a slow neutron beam through a magnetically-shielded vacuum chamber to a thin annihilation target surrounded by a low-background antineutron annihilation detector. Antineutron annihilation in a target downstream of a free neutron beam is such a spectacular experimental signature that an essentially background-free search is possible. An authentic positive signal can be extinguished by a very small change in the ambient magnetic field in such an experiment. It is also possible to improve the sensitivity of neutron oscillation searches in nuclei using large underground detectors built mainly to search for proton decay and detect neutrinos. This paper summarizes the relevant theoretical developments, outlines some ideas to improve experimental searches for free neutron oscillations, and suggests avenues both for theoretical investigation and for future improvement in the experimental sensitivity.

    DOI: 10.1016/j.physrep.2015.11.001

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  156. Pulsed ultra-cold neutron production using a Doppler shifter at J-PARC

    Imajo, S; Mishima, K; Kitaguchi, M; Iwashita, Y; Yamada, NL; Hino, M; Oda, T; Ino, T; Shimizu, HM; Yamashita, S; Katayama, R

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   Vol. 2016 ( 1 )   2016.1

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    We have constructed a Doppler-shifter-type pulsed ultra-cold neutron (UCN) source at the Materials and Life Science Experiment Facility of the Japan Proton Accelerator Research Complex. Very cold neutrons (VCNs) with 136 m s-1 velocity in a neutron beam supplied by a pulsed neutron source are decelerated by reflection on an m = 10 wide-band multilayer mirror, yielding pulsed UCNs. The mirror is fixed to the tip of a 2000 rpm rotating arm moving with 68 m s-1 velocity in the same direction as the VCNs. The repetition frequency of the pulsed UCNs is 8.33 Hz and the time width of the pulse at production is 4.4 ms. In order to increase the UCN flux, a supermirror guide, wide-band monochromatic mirrors, focus guides, and a UCN extraction guide have been newly installed or improved. The 1 MW-equivalent count rate of the output neutrons with longitudinal wavelengths longer than 58 nm is 1.6 × 102 cps, while that of the true UCNs is 80 cps. The spatial density at production is 1.4 UCN cm-3. This new UCN source enables us to research and develop apparatuses necessary for the investigation of the neutron electric dipole moment.

    DOI: 10.1093/ptep/ptv177

    Web of Science

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  157. Performance test of the Ultracold Neutron Rebuncher

    Imajo Sohei, Iwashita Yoshihisa, Mishima Kenji, Kitaguchi Masaaki, Shimizu Hirohiko M., Ino Takashi, Yamashita Satoru, NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 64 - 64   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_64

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  158. Measurement of the inner electric field of Bi<sub>12</sub>GeO<sub>20</sub>for the measurement of EDM of a neutron

    Itoh Shigeyasu, Nakaji Masaya, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 276 - 276   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_276

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  159. The design of the beam line of the Nagoya University Accelerator-driven Neutron Source

    Ito Ikuya, Shimizu Hirohiko, Kitaguchi Masaaki, Hirota Katsuya, Ichikawa Go, Yoshiaki Kiyanagi, Tsuchida Kazuki, Uritani Akira, Yoshihashi Sachiko, Watanabe Kenichi, Yamazaki Jun, Miwata Haruhiko, Yamagata Yutaka, Iwashita Yoshihisa

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 295 - 295   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_295

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  160. Possibility of crystal and experimental system for measurement of inner electric field

    Nakaji Masaya, Itoh Shigeyasu, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 277 - 277   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_277

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  161. Measurement of <sup>14</sup>N(n,p)<sup>14</sup>C cross section using cold neutron beam at J-PARC/MLF/BL05

    Kitahara Ryunosuke, Iwashita Yoshihisa, Shimizu Hirohiko, Hirota Katsuya, Yokohashi Mami, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Morishita Aya, Sumi Naoyuki, Tomita Tatsuhiko, Yamashita Toru, Nagakura Naoki, Ieki Sei, Yamada Takahito, Shima Tatsushi, Seki Yoshichika, Oide Hideyuki, Mishima Kenji, Taketani Kaoru, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 174 - 174   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_174

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  162. Measurement of neutron scattering with noble gas to search for a short-range unknown force at J-PARC

    Oi N., Shimizu H. M., Hirota K., Kitaguchi M., Haddock C. C., Snow W. M., Yoshioka T., Matsumoto S., Mishima K., Ino T., Shima T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 256 - 256   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_256

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  163. Measurement of neutron lifetime at J-PARC/BL05 : Signal Identification

    Ieki Sei, Yamada Takahito, Nagakura Naoki, Yamashita Satoru, Seki Yoshichika, Sumino Hirochika, Shimizu Hirohiko, Hirota Katsuya, Yokohashi Mami, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Tomita Tatsuhiko, Sumi Naoyuki, Morishita Aya, Iwashita Yoshihisa, Kitahara Ryunosuke, Oide Hideyuki, Shima Tatsushi, Mishima Kenji, Ino Takashi, Taketani Kaoru

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 60 - 60   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_60

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  164. Neutron lifetime measurement at J-PARC/BL05 : Development of large acceptance neutron optics

    Yokohashi Mami, Hirota Katsuya, Shimizu Hirohiko, Kitaguchi Masaaki, Kitahara Ryunosuke, Iwashita Yoshihisa, Yoshioka Tamaki, Otono Hidetoshi, Yamada Takahito, Yamashita Satoru, Seki Yoshichika, Oide Hideyuki, Mishima Kenji, Taketani Kaoru, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 79 - 79   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_79

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  165. Neutron lifetime measurement at J-PARC/BL05 : Development of the detector

    Tomita T., Sumi N., Morishita A., Otono H., Yoshioka T., Kitahara R., Iwashita Y., Yamada T., Yamashita S., Hirota K., Shimizu H., Yokohashi M., Kitaguchi M., Oide H., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 59 - 59   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_59

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  166. Neutron lifetime measurement at J-PARC/BL05: Systematic uncertainties and result

    Yamada Takahito, Ieki Sei, Nagakura Naoki, Yamashita Satoru, Sumino Hirochika, Shimizu Hirohiko M., Hirota Katsuya, Yokohashi Mami, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Tomita Tatsuhiko, Sumi Naoyuki, Morishita Aya, Iwashita Yoshihisa, Kitahara Ryunosuke, Oide Hideyuki, Shima Tatsushi, Mishima Kenji, Ino Takashi, Taketani Kaoru, Seki Yoshichika

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.2 ( 0 ) page: 61 - 61   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_61

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  167. 20pAH-10 Evaluation of neutron flux for the neutron lifetime measurement at J-PARC/BL05

    Mishima Kenji, Ino Takashi, Taketani Kaoru, Yamashita Satoru, Yamada Takahito, Yokoyama Harumichi, Ieki Sei, Nagakura Naoki, Sumino Hirochika, Shimizu Hirohiko M., Hirota Katsuya, Sakakibara Risa, Sugino Tomoaki, Yokohashi Mami, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Tanaka Genki, Tomita Tatsuhiko, Sumi Naoyuki, Morishita Aya, Iwashita Yoshihisa, Kitahara Ryunosuke, Oide Hideyuki, Shima Tatsushi, Seki Yoshichika

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 109   2016

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    DOI: 10.11316/jpsgaiyo.71.1.0_109

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  168. 22pAX-5 Suppression of a systematic with beam spin flipping for the MTV experiment

    Sakamoto Y., Baba H., Enokizono A., Goto F., Hatori M., Inaba S., Kawamura H., Kitaguchi M., Masuda H., Nagashima T., Ninomiya K., Openshaw R., Ozaki S., Pearson M., Shimizu H., Shimizu Y., Tanaka Y., Tanuma R., Watanabe E., Yokohashi M., Murata J.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 448   2016

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    DOI: 10.11316/jpsgaiyo.71.1.0_448

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  169. 22pAX-4 Measurement and analysis of Xe(n,γ) reaction for T-violation search experiment in compound neutron resonance

    Okudaira T., Shimizu H. M., Kitaguchi M., Hirota K., Ichikawa G., Okada A., Goto F., Nagamoto K., Takada S., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 447   2016

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    DOI: 10.11316/jpsgaiyo.71.1.0_447

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  170. 22pAX-2 Search for CP-violation effects in compound neutron resonance : current status and future prospect

    Kitaguchi M., Shimizu H. M., Hirota K., Ichikawa G., Okudaira T., Okada A., Goto F., Nagamoto K., Takada H., Yoshioka T., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Hino M., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 446   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_446

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  171. 22pAX-1 Behavior of neutron spin in polarized targets for the measurement of T-violating effects in compound nuclei

    Shimizu H. M., Kitaguchi M., Hirota K., Ichikawa G., Okudaira T., Okada A., Goto F., Nagamoto K., Takada H., Yoshioka T., Ino T., Momose T., Iwata T., Miyachi Y., Shima T., Yamagata Y., Gudkov V. P., Snow W. M., Plaster B., Bowman J. D., Sakai K., Harada H., Kimura A., Toh Y., Asahi K., Hino M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 445   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_445

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  172. 22aAH-4 Neutron lifetime measurement at J-PARC/BL05 : Development of the detector

    Morishita A., Sumi N., Tomita T., Otono H., Yoshioka T., Kitahara R., Iwashita Y., Yamada T., Yokoyama H., Yamashita S., Hirota K., Shimizu H., Kitaguchi M., Oide H., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 145   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_145

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  173. 20pAP-8 Neutron lifetime measurement at J-PARC/BL05 : Neutron optics for large beam acceptance

    Yokohashi Mami, Hirota Katsuya, Shimizu Hirohiko, Kitaguchi Masaaki, Kitahara Ryunosuke, Iwashita Yoshihisa, Yoshioka Tamaki, Otono Hidetoshi, Yamada Takahito, Yamashita Satoru, Seki Yoshichika, Oide Hidetoshi, Mishima Kenji, Taketani Kaoru, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 585   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_585

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  174. 20pAP-7 Neutron lifetime measurement at J-PARC/BL05 : Development of spin flip chopper

    Kitahara Ryunosuke, Iwashita Yoshihisa, Yokohashi Mami, Hirota Katsuya, Shimizu Hirohiko, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Yamada Takahito, Yamashita Satoru, Seki Yoshichika, Oide Hidetoshi, Mishima Kenji, Taketani Kaoru, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 584   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_584

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  175. 20pAH-9 Neutron lifetime measurement at J-PARC/BL05 : Data analysis 2014/2015

    Sumi N., Tanaka G., Tomita T., Morishita A., Yoshioka T., Otono H., Kitahara R., Iwashita Y., Yamada T., Ieki S., Nagakura N., Yokoyama H., Yamashita S., Sumino H., Sakakibara R., Sugino T., Yokohashi M., Hirota K., Shimizu H., Kitaguchi M., Oide H., Seki Y., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 108   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_108

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  176. 20pAH-8 Neutron lifetime measurement at J-PARC/BL05 : Evaluation of efficiency for a beta-decay event by simulation

    Nagakura Naoki, Yamada Takahito, Yokoyama Harumichi, Ieki Sei, Yamashita Satoru, Seki Yoshichika, Sumino Hirochika, Shimizu Hirohiko M., Hirota Katsuya, Sakakibara Risa, Sugino Tomoaki, Yokohashi Mami, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Tanaka Genki, Sumi Naoyuki, Tomita Tatsuhiko, Morishita Aya, Iwashita Yoshihisa, Kitahara Ryunosuke, Oide Hideyuki, Shima Tatsushi, Mishima Kenji, Ino Takashi, Taketani Kaoru

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 107   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_107

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  177. 20pAH-12 Development of ultracold neutron rebuncher with a neutron Doppler shifter at J-PARC MLF

    Imajo S., Iwashita Y., Mishima K., Kitaguchi M., Shimizu H. M., Ino T., Yamada N. L., Yamashita S., Katayama R., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 71.1 ( 0 ) page: 110   2016

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.71.1.0_110

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  178. The MTV experiment: From T violation to lorentz violation

    Murata J., Baba H., Behr J.A., Goto F., Inaba S., Kawamura H., Kitaguchi M., Levy C.D.P., Masuda H., Nakaya Y., Ninomiya K., Onishi J., Openshaw R., Ozaki S., Pearson M., Sakamoto Y., Shimizu H., Shimizu Y., Tanaka S., Tanaka Y., Tanuma R., Totsuka Y., Watanabe E., Yokohashi M.

    Proceedings of Science   Vol. 2016-September   2016

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    Publisher:Proceedings of Science  

    The MTV (Mott Polarimetry for T-Violation) experiment is running at TRIUMF-ISAC (Isotope Separator and ACcelerator), searching for a large T violation in polarized 8Li β decay via measurements of the triple vector correlation, R, in the β decay rate function. The left/right backward scattering asymmetry of Mott scattering from a thin metal foil is measured using an electron tracking detector including a cylindrical drift chamber (CDC). To achieve 10-ppm precision in the Mott scattering asymmetry, we performed multiple studies on the expected systematic effects. The sources of the systematics have been identified and calibration systems have been developed to evaluate the fake effects. The first physics data was collected in 2016 and significantly improved on the result of our previous measurement, which achieved 100-ppm precision in 2010 using the first generation detector (planer drift chamber) at TRIUMF. The data measurement status, together with the results of the systematics studies, is described here. In addition to the T violation, we are preparing to test the Lorentz invariance in the weak sector via our Mott analyzer system. Unexplored Lorentz violating correlations can be tested using the MTV experimental setup. The testing principle and preparation status are also described here.

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  179. Development of ultracold neutron accelerator for time focusing of pulsed neutrons

    Imajo S., Iwashita Y., Kitaguchi M., Shimizu H.M., Mishima K., Ino T., Yamashita S.

    Proceedings of the 28th Linear Accelerator Conference, LINAC 2016     page: 56 - 58   2016

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    Publisher:Proceedings of the 28th Linear Accelerator Conference, LINAC 2016  

    Low energy neutron accelerator can be realized by the combination of an adiabatic fast passage spin flipper and a gradient magnetic field. Neutrons have magnetic moments, so that the accumulated potential energies are not canceled before and after passage of a magnetic field and their kinetic energies change in case their spins are flipped in the field. This accelerator handles lower kinetic energy neutrons than approximately 300 neV. Currently we have developed the advanced version which makes it possible to handle broader kinetic energy range. The design and measured characteristics are described.

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  180. Measurement of neutron scattering from noble gas to search for a short-range unknown force

    Oi N., Shimizu H.M., Hirota K., Kitaguchi M., Haddock C.C., Snow W.M., Yoshioka T., Matsumoto S., Mishima K., Ino T., Shima T.

    Proceedings of Science   Vol. 2016-September   2016

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    We are searching for an unknown force that could couple to mass using neutron scattering from a noble gas. The neutron is a chargeless massive particle with a long lifetime, which consequently is suitable for the precision measurement of a small interaction with a range of the order of 1nm by measurements of the momentum transfer distribution. We measured neutron scattering at the low-divergence beam branch on the BL05 NOP beamline in the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC). We measured 105 scattering events and report our most recent analysis.

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  181. Measurement of angular correlations in the (n, γ) reaction for T Violation Search

    Okudaira T., Shimizu H.M., Kitaguchi M., Hirota K., Takada S., Yamamoto T., Okada A., Yoshioka T., Ino T., Sakai K., Asahi K., Momose T., Iwata T., Hino M., Shima T., Yamagata Y.

    Proceedings of Science   Vol. 2016-September   2016

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    Large enhanced P-violations was discovered in several compound nuclei. A mechanism of P-violation can be applied to enhancement of T-violation in compound nucleus. We plan the experiment for sensitive T-violation search, however, the mechanism of P-violation(s-p mixing) has not been verified in detail yet and the spin factor K(J) has not been measured in candidate nuclei for T-violation search. We need to measure angular distributions in the (n, y) reaction for verification of s-p mixing and determination of K(J) as a feasibility study for the T-violation search. The (n,γ) reaction of 139La which is one of the candidate nuclei was measured with 4π germanium spectrometer in J-PARC/MLF/ANNRI. A neutron spectrum and a γ-ray spectrum for 139La was obtained.

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  182. Discrete symmetry tests in neutron-induced compound states

    Shimizu H.M., Snow W.M., Gudkov V.P., Bowman J.D., Curole J., Goodson B.M., Harada H., Hautle P., Hino M., Hirota K., Ichikawa G., Ino T., Ishimoto S., Iwata T., Kimura A., Kitaguchi M., Kiyanagi Y., Koga J., Mishima K., Miyachi Y., Momose T., Morishima T., Nagamoto K., Okada A., Okudaira T., Penttila S., Plaster B., Sakai K., Schaper D., Takada S., Taketani K., Tong X., Tremsin A.S., Yamagata Y., Yamamoto T., Yamanaka N., Yokohashi M., Yoshioka T.

    Proceedings of Science   Vol. 2016-September   2016

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    A possibility of new type experimental searches for new physics beyond the standard model is being introduced in the symmetry tests in neutron-induced compound states according to the successful operation of intense pulsed neutron sources. The basis of experiment design is discussed.

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  183. Precise neutron lifetime experiment using pulsed neutron beams at J-PARC

    Nagakura N., Hirota K., Ieki S., Ino T., Iwashita Y., Kitaguchi M., Kitahara R., Mishima K., Morishita A., Oide H., Otono H., Sakakibara R., Seki Y., Shima T., Shimizu H.M., Sugino T., Sumi N., Sumino H., Taketani K., Tanaka G., Tomita T., Yamada T., Yamashita S., Yokohashi M., Yoshioka T.

    Proceedings of Science   Vol. 2016-September   2016

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    The neutron lifetime (τn) is one of the basic parameters in the weak interaction, and is used for predicting the light element abundance in the early universe. Our group developed a new setup to measure τn with the goal precision of 0.1% at the polarized beam branch BL05 of MLF, J-PARC. The commissioning data was acquired in 2014 and 2015, and the first set of data to evaluate τn in 2016, which is expected to yield a statistical uncertainty of O(1)%. This paper presents the current analysis results and the future plans to achieve our goal precision.

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  184. Development of time projection chamber for precise neutron lifetime measurement using pulsed cold neutron beams

    Arimoto, Y; Higashi, N; Igarashi, Y; Iwashita, Y; Ino, T; Katayama, R; Kitaguchi, M; Kitahara, R; Matsumura, H; Mishima, K; Nagakura, N; Oide, H; Otono, H; Sakakibara, R; Shima, T; Shimizu, HM; Sugino, T; Sumi, N; Sumino, H; Taketani, K; Tanaka, G; Tanaka, M; Tauchi, K; Toyoda, A; Tomita, T; Yamada, T; Yamashita, S; Yokoyama, H; Yoshioka, T

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 799   page: 187 - 196   2015.11

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    A new time projection chamber (TPC) was developed for neutron lifetime measurement using a pulsed cold neutron spallation source at the Japan Proton Accelerator Research Complex (J-PARC). Managing considerable background events from natural sources and the beam radioactivity is a challenging aspect of this measurement. To overcome this problem, the developed TPC has unprecedented features such as the use of polyether-ether-ketone plates in the support structure and internal surfaces covered with <sup>6</sup>Li-enriched tiles to absorb outlier neutrons. In this paper, the design and performance of the new TPC are reported in detail.

    DOI: 10.1016/j.nima.2015.08.006

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  185. Performances of JEM-EUSO: angular reconstruction: The JEM-EUSO Collaboration

    Adams J.H., Ahmad S., Albert J.N., Allard D., Anchordoqui L., Andreev V., Anzalone A., Arai Y., Asano K., Ave Pernas M., Baragatti P., Barrillon P., Batsch T., Bayer J., Bechini R., Belenguer T., Bellotti R., Belov K., Berlind A.A., Bertaina M., Biermann P.L., Biktemerova S., Blaksley C., Blanc N., Błȩcki J., Blin-Bondil S., Blümer J., Bobik P., Bogomilov M., Bonamente M., Briggs M.S., Briz S., Bruno A., Cafagna F., Campana D., Capdevielle J.N., Caruso R., Casolino M., Cassardo C., Castellinic G., Catalano C., Catalano G., Cellino A., Chikawa M., Christl M.J., Cline D., Connaughton V., Conti L., Cordero G., Crawford H.J., Cremonini R., Csorna S., Dagoret-Campagne S., de Castro A.J., De Donato C., de la Taille C., De Santis C., del Peral L., Dell’Oro A., De Simone N., Di Martino M., Distratis G., Dulucq F., Dupieux M., Ebersoldt A., Ebisuzaki T., Engel R., Falk S., Fang K., Fenu F., Fernández-Gómez I., Ferrarese S., Finco D., Flamini M., Fornaro C., Franceschi A., Fujimoto J., Fukushima M., Galeotti P., Garipov G., Geary J., Gelmini G., Giraudo G., Gonchar M., González Alvarado C., Gorodetzky P., Guarino F., Guzmán A., Hachisu Y., Harlov B., Haungs A., Hernández Carretero J., Higashide K., Ikeda D., Ikeda H., Inoue N., Inoue S., Insolia A., Isgrò F.

    Experimental Astronomy   Vol. 40 ( 1 ) page: 153 - 177   2015.11

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    Mounted on the International Space Station(ISS), the Extreme Universe Space Observatory, on-board the Japanese Experimental Module (JEM-EUSO), relies on the well established fluorescence technique to observe Extensive Air Showers (EAS) developing in the earth’s atmosphere. Focusing on the detection of Ultra High Energy Cosmic Rays (UHECR) in the decade of 1020eV, JEM-EUSO will face new challenges by applying this technique from space. The EUSO Simulation and Analysis Framework (ESAF) has been developed in this context to provide a full end-to-end simulation frame, and assess the overall performance of the detector. Within ESAF, angular reconstruction can be separated into two conceptually different steps. The first step is pattern recognition, or filtering, of the signal to separate it from the background. The second step is to perform different types of fitting in order to search for the relevant geometrical parameters that best describe the previously selected signal. In this paper, we discuss some of the techniques we have implemented in ESAF to perform the geometrical reconstruction of EAS seen by JEM-EUSO. We also conduct thorough tests to assess the performances of these techniques in conditions which are relevant to the scope of the JEM-EUSO mission. We conclude by showing the expected angular resolution in the energy range that JEM-EUSO is expected to observe.

    DOI: 10.1007/s10686-013-9371-0

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  186. Calibration aspects of the JEM-EUSO mission

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; de Donato, C; de la Taille, C; de Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodriguez, I; Rodríguez, MD; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Cruz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 91 - 116   2015.11

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    The JEM-EUSO telescope will be, after calibration, a very accurate instrument which yields the number of received photons from the number of measured photo-electrons. The project is in phase A (demonstration of the concept) including already operating prototype instruments, i.e. many parts of the instrument have been constructed and tested. Calibration is a crucial part of the instrument and its use. The focal surface (FS) of the JEM-EUSO telescope will consist of about 5000 photo-multiplier tubes (PMTs), which have to be well calibrated to reach the required accuracy in reconstructing the air-shower parameters. The optics system consists of 3 plastic Fresnel (double-sided) lenses of 2.5 m diameter. The aim of the calibration system is to measure the efficiencies (transmittances) of the optics and absolute efficiencies of the entire focal surface detector. The system consists of 3 main components: (i) Pre-flight calibration devices on ground, where the efficiency and gain of the PMTs will be measured absolutely and also the transmittance of the optics will be. (ii) On-board relative calibration system applying two methods: a) operating during the day when the JEM-EUSO lid will be closed with small light sources on board. b) operating during the night, together with data taking: the monitoring of the background rate over identical sites. (iii) Absolute in-flight calibration, again, applying two methods: a) measurement of the moon light, reflected on high altitude, high albedo clouds. b) measurements of calibrated flashes and tracks produced by the Global Light System (GLS). Some details of each calibration method will be described in this paper.

    DOI: 10.1007/s10686-015-9453-2

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  187. Ultra high energy photons and neutrinos with JEM-EUSO (vol 40, pg 215, 2015)

    Adams, JH; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgr'o, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, AD; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 235 - 237   2015.11

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    DOI: 10.1007/s10686-015-9470-1

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  188. Ultra high energy photons and neutrinos with JEM-EUSO

    Supanitsky, AD; Medina-Tanco, G; Guzmán, A; Adams, JH ; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchari, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itowen, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Odarczyk, ZW; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 215 - 233   2015.11

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    Ultra high energy photons and neutrinos are carriers of very important astrophysical information. They may be produced at the sites of cosmic ray acceleration or during the propagation of the cosmic rays in the intergalactic medium. In contrast to charged cosmic rays, photon and neutrino arrival directions point to the production site because they are not deflected by the magnetic fields of the Galaxy or the intergalactic medium. In this work we study the characteristics of the longitudinal development of showers initiated by photons and neutrinos at the highest energies. These studies are relevant for development of techniques for neutrino and photon identification by the JEM-EUSO telescope. In particular, we study the possibility of observing the multi-peak structure of very deep horizontal neutrino showers with JEM-EUSO. We also discuss the possibility to determine the flavor content of the incident neutrino flux by taking advantage of the different characteristics of the longitudinal profiles generated by different type of neutrinos. This is of grate importance for the study of the fundamental properties of neutrinos at the highest energies. Regarding photons, we discuss the detectability of the cosmogenic component by JEM-EUSO and also estimate the expected upper limits on the photon fraction which can be obtained from the future JEM-EUSO data for the case in which there are no photons in the samples.

    DOI: 10.1007/s10686-013-9353-2

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  189. The JEM-EUSO observation in cloudy conditions

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornarodo, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircakja, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 135 - 152   2015.11

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    The JEM-EUSO (Extreme Universe Space Observatory on-board the Japanese Experiment Module) mission will conduct extensive air shower (EAS) observations on the International Space Station (ISS). Following the ISS orbit, JEM-EUSO will experience continuous changes in the atmospheric conditions, including cloud presence. The influence of clouds on space-based observation is, therefore, an important topic to investigate from both EAS property and cloud climatology points of view. In the present work, the impact of clouds on the apparent profile of EAS is demonstrated through the simulation studies, taking into account the JEM-EUSO instrument and properties of the clouds. These results show a dependence on the cloud-top altitude and optical depth of the cloud. The analyses of satellite measurements on the cloud distribution indicate that more than 60 % of the cases allow for conventional EAS observation, and an additional ∼20 % with reduced quality. The combination of the relevant factors results in an effective trigger aperture of EAS observation ∼72 %, compared to the one in the clear atmosphere condition.

    DOI: 10.1007/s10686-014-9377-2

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  190. The JEM-EUSO mission: An introduction

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; de Donato, C; de la Taille, C; Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; Ríos, JAMD; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 3 - 17   2015.11

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    The Extreme Universe Space Observatory on board the Japanese Experiment Module of the International Space Station, JEM-EUSO, is being designed to search from space ultra-high energy cosmic rays. These are charged particles with energies from a few 1019 eV to beyond 1020 eV, at the very end of the known cosmic ray energy spectrum. JEM-EUSO will also search for extreme energy neutrinos, photons, and exotic particles, providing a unique opportunity to explore largely unknown phenomena in our Universe. The mission, principally based on a wide field of view (60 degrees) near-UV telescope with a diameter of ∼ 2.5 m, will monitor the earth’s atmosphere at night, pioneering the observation from space of the ultraviolet tracks (290-430 nm) associated with giant extensive air showers produced by ultra-high energy primaries propagating in the earth’s atmosphere. Observing from an orbital altitude of ∼ 400 km, the mission is expected to reach an instantaneous geometrical aperture of Ageo ≥ 2 × 105 km2 sr with an estimated duty cycle of ∼ 20 %. Such a geometrical aperture allows unprecedented exposures, significantly larger than can be obtained with ground-based experiments. In this paper we briefly review the history of space-based search for ultra-high energy cosmic rays. We then introduce the special issue of Experimental Astronomy devoted to the various aspects of such a challenging enterprise. We also summarise the activities of the on-going JEM-EUSO program.

    DOI: 10.1007/s10686-015-9482-x

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  191. The JEM-EUSO instrument

    Casolino, M; Kajino, F; Piotrowski, LW; Adams, JH ; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchari, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itowen, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Odarczyk, ZW; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 19 - 44   2015.11

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    In this paper we describe the main characteristics of the JEM-EUSO instrument. The Extreme Universe Space Observatory on the Japanese Experiment Module (JEM-EUSO) of the International Space Station (ISS) will observe Ultra High-Energy Cosmic Rays (UHECR) from space. It will detect UV-light of Extensive Air Showers (EAS) produced by UHECRs traversing the Earth’s atmosphere. For each event, the detector will determine the energy, arrival direction and the type of the primary particle. The advantage of a space-borne detector resides in the large field of view, using a target volume of about 1012 tons of atmosphere, far greater than what is achievable from ground. Another advantage is a nearly uniform sampling of the whole celestial sphere. The corresponding increase in statistics will help to clarify the origin and sources of UHECRs and characterize the environment traversed during their production and propagation. JEM-EUSO is a 1.1 ton refractor telescope using an optics of 2.5 m diameter Fresnel lenses to focus the UV-light from EAS on a focal surface composed of about 5,000 multi-anode photomultipliers, for a total of ≃3⋅105 channels. A multi-layer parallel architecture handles front-end acquisition, selecting and storing valid triggers. Each processing level filters the events with increasingly complex algorithms using FPGAs and DSPs to reject spurious events and reduce the data rate to a value compatible with downlink constraints.

    DOI: 10.1007/s10686-014-9418-x

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  192. The infrared camera onboard JEM-EUSO

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashini, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotovi, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 61 - 89   2015.11

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    Publisher:Experimental Astronomy  

    The Extreme Universe Space Observatory on the Japanese Experiment Module (JEM-EUSO) on board the International Space Station (ISS) is the first space-based mission worldwide in the field of Ultra High-Energy Cosmic Rays (UHECR). For UHECR experiments, the atmosphere is not only the showering calorimeter for the primary cosmic rays, it is an essential part of the readout system, as well. Moreover, the atmosphere must be calibrated and has to be considered as input for the analysis of the fluorescence signals. Therefore, the JEM-EUSO Space Observatory is implementing an Atmospheric Monitoring System (AMS) that will include an IR-Camera and a LIDAR. The AMS Infrared Camera is an infrared, wide FoV, imaging system designed to provide the cloud coverage along the JEM-EUSO track and the cloud top height to properly achieve the UHECR reconstruction in cloudy conditions. In this paper, an updated preliminary design status, the results from the calibration tests of the first prototype, the simulation of the instrument, and preliminary cloud top height retrieval algorithms are presented.

    DOI: 10.1007/s10686-014-9402-5

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  193. The EUSO-Balloon pathfinder

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchari, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itowen, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Odarczyk, ZW; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 281 - 299   2015.11

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    EUSO-Balloon is a pathfinder for JEM-EUSO, the Extreme Universe Space Observatory which is to be hosted on-board the International Space Station. As JEM-EUSO is designed to observe Ultra-High Energy Cosmic Rays (UHECR)-induced Extensive Air Showers (EAS) by detecting their ultraviolet light tracks “from above”, EUSO-Balloon is a nadir-pointing UV telescope too. With its Fresnel Optics and Photo-Detector Module, the instrument monitors a 50 km2 ground surface area in a wavelength band of 290–430 nm, collecting series of images at a rate of 400,000 frames/sec. The objectives of the balloon demonstrator are threefold: a) perform a full end-to-end test of a JEM-EUSO prototype consisting of all the main subsystems of the space experiment, b) measure the effective terrestrial UV background, with a spatial and temporal resolution relevant for JEM-EUSO. c) detect tracks of ultraviolet light from near space for the first time. The latter is a milestone in the development of UHECR science, paving the way for any future space-based UHECR observatory. On August 25, 2014, EUSO-Balloon was launched from Timmins Stratospheric Balloon Base (Ontario, Canada) by the balloon division of the French Space Agency CNES. From a float altitude of 38 km, the instrument operated during the entire astronomical night, observing UV-light from a variety of ground-covers and from hundreds of simulated EASs, produced by flashers and a laser during a two-hour helicopter under-flight.

    DOI: 10.1007/s10686-015-9467-9

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  194. The atmospheric monitoring system of the JEM-EUSO instrument

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prevot, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, J; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 45 - 60   2015.11

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    Publisher:Experimental Astronomy  

    The JEM-EUSO telescope will detect Ultra-High Energy Cosmic Rays (UHECRs) from space, detecting the UV Fluorescence Light produced by Extensive Air Showers (EAS) induced by the interaction of the cosmic rays with the earth’s atmosphere. The capability to reconstruct the properties of the primary cosmic ray depends on the accurate measurement of the atmospheric conditions in the region of EAS development. The Atmospheric Monitoring (AM) system of JEM-EUSO will host a LIDAR, operating in the UV band, and an Infrared camera to monitor the cloud cover in the JEM-EUSO Field of View, in order to be sensitive to clouds with an optical depth τ ≥ 0.15 and to measure the cloud top altitude with an accuracy of 500 m and an altitude resolution of 500 m.

    DOI: 10.1007/s10686-014-9378-1

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  195. Space experiment TUS on board the Lomonosov satellite as pathfinder of JEM-EUSO

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 315 - 326   2015.11

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    Space-based detectors for the study of extreme energy cosmic rays (EECR) are being prepared as a promising new method for detecting highest energy cosmic rays. A pioneering space device – the “tracking ultraviolet set-up” (TUS) – is in the last stage of its construction and testing. The TUS detector will collect preliminary data on EECR in the conditions of a space environment, which will be extremely useful for planning the major JEM-EUSO detector operation.

    DOI: 10.1007/s10686-015-9465-y

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  196. Science of atmospheric phenomena with JEM-EUSO

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sanchez, S; Santangelo, A; Cruz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galiciaga, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 239 - 251   2015.11

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    The main goal of the JEM-EUSO experiment is the study of Ultra High Energy Cosmic Rays (UHECR, 1019−1021eV), but the method which will be used (detection of the secondary light emissions induced by cosmic rays in the atmosphere) allows to study other luminous phenomena. The UHECRs will be detected through the measurement of the emission in the range between 290 and 430 m, where some part of Transient Luminous Events (TLEs) emission also appears. This work discusses the possibility of using the JEM-EUSO Telescope to get new scientific results on TLEs. The high time resolution of this instrument allows to observe the evolution of TLEs with great precision just at the moment of their origin. The paper consists of four parts: review of the present knowledge on the TLE, presentation of the results of the simulations of the TLE images in the JEM-EUSO telescope, results of the Russian experiment Tatiana–2 and discussion of the possible progress achievable in this field with JEM-EUSO as well as possible cooperation with other space projects devoted to the study of TLE – TARANIS and ASIM. In atmospheric physics, the study of TLEs became one of the main physical subjects of interest after their discovery in 1989. In the years 1992 – 1994 detection was performed from satellite, aircraft and space shuttle and recently from the International Space Station. These events have short duration (milliseconds) and small scales (km to tens of km) and appear at altitudes 50 – 100 km. Their nature is still not clear and each new experimental data can be useful for a better understanding of these mysterious phenomena.

    DOI: 10.1007/s10686-014-9431-0

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  197. Ground-based tests of JEM-EUSO components at the Telescope Array site, "EUSO-TA"

    Kawasaki, Y; Piotrowski, LW; Adams, JH ; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; de Donato, C; de la Taille, C; Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; Ríos, JAMD; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 301 - 314   2015.11

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    We are conducting tests of optical and electronics components of JEMEUSO at the Telescope Array site in Utah with a ground-based “EUSO-TA” detector. The tests will include an engineering validation of the detector, cross-calibration of EUSO-TA with the TA fluorescence detector and observations of air shower events. Also, the proximity of the TA’s Electron Light Source will allow for convenient use of this calibration device. In this paper, we report initial results obtained with the EUSO-TA telescope.

    DOI: 10.1007/s10686-015-9441-6

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  198. JEM-EUSO: Meteor and nuclearite observations

    Bertaina, M; Cellino, A; Ronga, F; Adams, JH ; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchari, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itowen, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Odarczyk, ZW; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 253 - 279   2015.11

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    Publisher:Experimental Astronomy  

    Meteor and fireball observations are key to the derivation of both the inventory and physical characterization of small solar system bodies orbiting in the vicinity of the Earth. For several decades, observation of these phenomena has only been possible via ground-based instruments. The proposed JEM-EUSO mission has the potential to become the first operational space-based platform to share this capability. In comparison to the observation of extremely energetic cosmic ray events, which is the primary objective of JEM-EUSO, meteor phenomena are very slow, since their typical speeds are of the order of a few tens of km/sec (whereas cosmic rays travel at light speed). The observing strategy developed to detect meteors may also be applied to the detection of nuclearites, which have higher velocities, a wider range of possible trajectories, but move well below the speed of light and can therefore be considered as slow events for JEM-EUSO. The possible detection of nuclearites greatly enhances the scientific rationale behind the JEM-EUSO mission.

    DOI: 10.1007/s10686-014-9375-4

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  199. JEM-EUSO observational technique and exposure

    Bertaina, M; Bobik, P; Fenu, F; Shinozaki, K; Adams, JH ; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchari, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itowen, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Crúz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Odarczyk, ZW; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY; Marchi, AZ

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 117 - 134   2015.11

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    Designed as the first mission to explore the ultra-high energy universe from space, JEM-EUSO observes the Earth’s atmosphere at night to record the ultraviolet tracks generated by the extensive air showers. We present the expected geometrical aperture and annual exposure in the nadir and tilt modes for ultra-high energy cosmic rays observation as a function of the altitude of the International Space Station.

    DOI: 10.1007/s10686-014-9376-3

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  200. Performances of JEM-EUSO: angular reconstruction (vol 30, pg 153, 2015)

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csoma, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fern'andez-G'omez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgr'o, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; L'opez, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los R'ios, JAM; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orlea'nski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Pr'evot, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodr'iguez, I; Fr'ias, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczy'nski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; S'anchez, S; Santangelo, A; Cr'uz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; L'opez, HHS; Sledd, J; Slomi'nska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Vald'es-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villasenor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 179 - 181   2015.11

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    Publisher:Experimental Astronomy  

    DOI: 10.1007/s10686-014-9420-3

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  201. Performances of JEM-EUSO: energy and <i>X</i> <sub>max</sub> reconstruction

    Adams, JH Jr; Ahmad, S; Albert, JN; Allard, D; Anchordoqui, L; Andreev, V; Anzalone, A; Arai, Y; Asano, K; Pernas, MA; Baragatti, P; Barrillon, P; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Blanc, N; Blecki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Christl, MJ; Cline, D; Connaughton, V; Conti, L; Cordero, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Dell'Oro, A; De Simone, N; Di Martino, M; Distratis, G; Dulucq, F; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Franceschi, A; Fujimoto, J; Fukushima, M; Galeotti, P; Garipov, G; Geary, J; Gelmini, G; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Lacombe, M; Lachaud, C; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Maravilla, D; Marcelli, L; Marini, A; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monaco, A; Monnier-Ragaigne, D; de los Ríos, JA; Moretto, C; Morozenko, VS; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Napolitano, T; Naumov, D; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Panasyuk, MI; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Cano, SP; Peter, T; Picozza, P; Pierog, T; Piotrowski, LW; Piraino, S; Plebaniak, Z; Pollini, A; Prat, P; Prévôt, G; Prieto, H; Putis, M; Reardon, P; Reyes, M; Ricci, M; Rodríguez, I; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sánchez, S; Santangelo, A; Cruz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozieblo, G; López, HHS; Sledd, J; Slominska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Trillaud, F; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zotov, MY

    EXPERIMENTAL ASTRONOMY   Vol. 40 ( 1 ) page: 183 - 214   2015.11

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    Publisher:Experimental Astronomy  

    The Extreme Universe Space Observatory (EUSO) on–board the Japanese Experimental Module (JEM) of the International Space Station aims at the detection of ultra high energy cosmic rays from space. The mission consists of a UV telescope which will detect the fluorescence light emitted by cosmic ray showers in the atmosphere. The mission, currently developed by a large international collaboration, is designed to be launched within this decade. In this article, we present the reconstruction of the energy of the observed events and we also address the Xmax reconstruction. After discussing the algorithms developed for the energy and Xmax reconstruction, we present several estimates of the energy resolution, as a function of the incident angle, and energy of the event. Similarly, estimates of the Xmax resolution for various conditions are presented.

    DOI: 10.1007/s10686-014-9427-9

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  202. 21aCE-11 Neutron fundamental physics : Search for CP-violation effects in compound neutron resonance

    Kitaguchi M., Shimizu H. M., Hirota K., Ichikawa G., Ino T., Asahi K., Momose T., Iwata T., Sakai K., Hino M., Yoshioka T., Shima T., Yamagata Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 254   2015

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.70.1.0_254

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  203. 21pDF-11 Search for New Physics using the Enhancement of CP-violation Effects in Compound Nuclei

    SHIMIZU Hirohiko M., KITAGUCHI Masaaki, HIROTA Katsuya, ICHIKAWA Go, INO Takashi, ASAHI Koichiro, MOMOSE Takamasa, IWATA Takahiro, SAKAI Kenji, HINO Masahiro, YOSHIOKA Tamaki, SHIMA Tatsushi, YAMAGATA Yutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 70   2015

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.70.1.0_70

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  204. 21aDL-6 Optical System for the Neutron Anti-Neutron Oscillation Search Experiment Using Cold Neutrons

    ICHIKAWA Go, SHIMIZU Hirohiko M., KITAGUCHI Masaaki, NNbar Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 66   2015

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    DOI: 10.11316/jpsgaiyo.70.1.0_66

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  205. 21aDL-4 Development of Multilayer Neutron Interferometer for Measurement of Gravitationally Induced Phases

    Seki Y., Kitaguchi M., Hino M., Shimizu H. M., the NOP Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 64   2015

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.70.1.0_64

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  206. 21aDL-3 Neutron lifetime measurement at J-PARC/BL05 : Systematic uncertainties 2014

    Kitahara Ryunosuke, Iwashita Yoshihisa, Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Kitaguchi Masaaki, Yamada Takahito, Katayama Ryo, Higashi Nao, Yokoyama Harumichi, Sumino Hirochika, Yamashita Satoru, Tanaka Genki, Sumi Naoyuki, Otono Hidetoshi, Yoshioka Tamaki, Oide Hidetoshi, Seki Yoshichika, Mishima Kenji, Taketani Kaoru, Ino Takashi, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 63   2015

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.70.1.0_63

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  207. 21aDL-2 Neutron lifetime measurement at J-PARC/BL05 : Data analysis 2014

    Sumi N., Tanaka G., Otono H., Yoshioka T., Kitahara R., Iwashita Y., Yamada T., Katayama R., Azuma N., Yokoyama H., Sumino H., Yamashita S., Sakakibara R., Sugino T., Hirota K., Shimizu H., Kitaguchi M., Oide H., Seki Y., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 62   2015

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.70.1.0_62

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  208. 21aDL-1 A present state of neutron lifetime measurement at J-PARC/BL05

    Tanaka G., Sumi N., Yoshioka T., Otono H., Kitahara R., Iwashita Y., Yamada T., Katayama R., Azuma N., Yokoyama H., Sumino H., Yamashita S., Sakakibara R., Sugino T., Hirota K., Shimizu H., Kitaguchi M., Oide H., Seki Y., Shima T., Mishima K., Taketani K., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 61   2015

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    DOI: 10.11316/jpsgaiyo.70.1.0_61

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  209. 21aCE-12 Measurement and analysis of partial wave mixing for CP-violation search in compound neutron resonance

    Hirota K., Kitaguchi M., Shimizu H. M., Ichikawa G., Sugino T., Sakai K., Kimura A., Harada H., Ino T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.1 ( 0 ) page: 255   2015

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    DOI: 10.11316/jpsgaiyo.70.1.0_255

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  210. 26aSF-4 Measurement of the electric dipole moment of a neutron by the diffraction of the BGO crystal

    Itoh Shigeyasu, Kitaguchi Masaaki, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.2 ( 0 ) page: 250   2015

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    DOI: 10.11316/jpsgaiyo.70.2.0_250

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  211. 26pSS-1 Neutron lifetime measurement at J-PARC/BL05 : Evaluation of systematic uncertainties by simulation

    Nagakura Naoki, Katayama Ryo, Yamada Takahito, Higashi Nao, Yokoyama Harumichi, Sumino Hirochika, Yamashita Satoru, Shimizu Hirohiko M., Hirota Katsuya, Sakakibara Risa, Sugino Tomoaki, Kitaguchi Masaaki, Yoshioka Tamaki, Otono Hidetoshi, Tanaka Genki, Sumi Naoyuki, Iwashita Yoshihisa, Kitahara Ryunosuke, Oide Hideyuki, Shima Tatsushi, Mishima Kenji, Ino Takashi, Taketani Kaoru, Seki Yoshichika

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.2 ( 0 ) page: 88   2015

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    DOI: 10.11316/jpsgaiyo.70.2.0_88

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  212. 26pSG-8 Neutron lifetime measurement at J-PARC/BL05 : Development of the detector

    SUMI NAOYUKI, TOMITA TATSUHIKO, OTONO HIDETOSHI, YOSHIOKA TAMAKI, KITAHARA RYUNOSUKE, IWASHITA YOSHIHISA, YAMADA TAKAHITO, YAMASHITA SATORU, HIROTA KATSUYA, SHIMIZU HIROHIKO, KITAGUCHI MASAAKI, OIDE HIDEYUKI, SHIMA TATSUSHI, MISHIMA KENJI, TAKETANI KAORU, INO TAKASHI

    Meeting Abstracts of the Physical Society of Japan   Vol. 70.2 ( 0 ) page: 87   2015

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    DOI: 10.11316/jpsgaiyo.70.2.0_87

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  213. Development of accelerator-driven compact neutron sources

    Hirota K., Ichikawa G., Kitaguchi M., Kiyanagi Y., Shimizu H.M., Tsuchida K., Uritani A., Watanabe K.

    6th International Particle Accelerator Conference, IPAC 2015     page: 2535 - 2536   2015

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    Compact neutron sources are good tools for neutron scientist. In this paper we will present the current situation of compact accelerator-driven neutron source and the status of the facility of Nagoya University.

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  214. The development of a low energy neutron accelerator for rebunching pulsed neutrons

    Imajo S., Iwashita Y., Shimizu H.M., Kitaguchi M., Yamashita S., Arimoto Y., Yoshioka T., Seki Y.

    IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference     page: 751 - 753   2014.7

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    Low energy neutrons can be accelerated or decelerated by the technique of AFP-NMR with RF in a gradient magnetic fields. The neutrons have magnetic moments, hence their potential energy are not cancelled before and after passage of magnetic fields and their kinetic energy change finally when their spins are flipped in the fields. Nowadays most measurements of the neutron electric dipole moment (nEDM) are carried out with ultra cold neutrons (UCN), whose kinetic energies are lower than about 300 neV, and with a small storage bottle to reduce the systematic errors. In such experiments highly dense UCNs are desired. The spallation neutron sources generate high-density neutrons at the target, however, the pulsed neutrons with spread velocities are diffused in guide tubes during long beam transport. It is necessary to concentrate UCN temporally upon the bottle by controlling their velocities for nEDM experiments at those facilities. We demonstrated such rebuncher and have been developed the advanced apparatus which makes it possible to handle broader energy range UCN. The design, measured specification of the new rebuncher is described in detail.

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  215. Production of Ultra Cold Neutrons by a Doppler Shifter with Pulsed Neutrons at J-PARC

    Mishima K., Imajo S., Hino M., Ino T., Iwashita Y., Katayama R., Kitaguchi M., Oda T., Shimizu H. M., Utsuro M., Yamashita S., Yoshioka T.

    INTERNATIONAL WORKSHOP ON NEUTRON OPTICS AND DETECTORS (NOP&D 2013)   Vol. 528 ( 1 )   2014

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    Ultracold neutrons (UCNs) are neutrons whose kinetic energy is around a few hundred nanoelectronvolts. Neutrons with such small kinetic energy can be trapped in a material vessel or magnetic fields. Because of these unique characteristics, UCNs are used for some important experiments of fundamental physics. The Doppler shifter is a device to produce UCN by slowing them down by the reflection on a mirror moving with half of the velocity of incoming neutrons. A Doppler shifter using a quadruple-stack of monochromatic supermirrors that reflects neutrons with a velocity around 68m/s [1, Hino et al.(2010)] was fabricated, and operated with a pulsed neutron source of J-PARC. An important feature of the Doppler shifter is the use of a pulsed neutron beam. Unlike in continuous neutron beams, the neutron velocity can be selected by choosing a time slice in a pulsed neutron bunch. Thus the UCN production improves by ∼80 times in the case of J-PARC. We successfully produced the UCNs by the Doppler shifter: the measured UCN production rate is consistent with the simulations. © Published under licence by IOP Publishing Ltd.

    DOI: 10.1088/1742-6596/528/1/012030

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  216. 18aSJ-1 Determination of neutron flux for the neutron lifetime measurement at J-PARC/BL05

    Mishima Kenji, Yamashita Satoru, Yamada Takahito, Katayama Ryo, Higashi Nao, Yokoyama Harumichi, Sumino Hirochika, Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Kitaguchi Masaaki, Tanaka Genki, Sumi Naoyuki, Otono Hidetoshi, Yoshioka Tamaki, Kitahara Ryunosuke, Iwashida Yoshihisa, Oide Hidetoshi, Shima Tatsushi, Seki Yoshichika, Ino Takashi, Taketani Kaoru

    Meeting Abstracts of the Physical Society of Japan   Vol. 69.2.1 ( 0 ) page: 18   2014

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    DOI: 10.11316/jpsgaiyo.69.2.1.0_18_2

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  217. 18aSJ-2 Evaluation of improved TPC detector in the neutron lifetime measurement at J-PARC/BL05

    Kitahara Ryunosuke, Iwashita Yoshihisa, Yamada Takahito, Katayama Ryo, Higashi Nao, Yokoyama Harumichi, Sumino Hirochika, Mishima Kenji, Yamashita Satoru, Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Kitaguchi Masaaki, Tanaka Genki, Sumi Naoyuki, Otono Hidetoshi, Yoshioka Tamaki, Oide Hidetoshi, Seki Yoshichika, Shima Tatsushi, Taketani Kaoru, Ino Takashi

    Meeting Abstracts of the Physical Society of Japan   Vol. 69.2.1 ( 0 ) page: 18   2014

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    DOI: 10.11316/jpsgaiyo.69.2.1.0_18_3

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  218. 28aTR-7 Neutron lifetime measurement at J-PARC/BL05 : Present status and future outlook

    Mishima Kenji, Yamashita Satoru, Yamada Takahito, Katayama Ryo, Higashi Nao, Yokoyama Harumichi, Sumino Hirochika, Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Kitaguchi Masaaki, Tanaka Genki, Otono Hidetoshi, Yoshioka Tamaki, Oide Hidetoshi, Ino Takashi, Taketani Kaoru, Shima Tatsushi, Seki Yoshichika

    Meeting Abstracts of the Physical Society of Japan   Vol. 69.1.1 ( 0 ) page: 87   2014

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    DOI: 10.11316/jpsgaiyo.69.1.1.0_87_4

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  219. 29pSD-7 Systematic uncertainty for event id and future prospects of analysis in neutron lifetime measurement at J-PARC/BL05

    Yamada Takahito, Yokoyama Harumichi, Higashi Nao, Katayama Ryo, Sumino H., Mishima Kenji, Yamashita Satoru, Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Kitaguchi Masaaki, Tanaka Genki, Otono Hidetoshi, Yoshioka Tamaki, Oide Hidetoshi, Seki Yoshichika, Ino Takashi, Taketani Kaoru, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 69.1.1 ( 0 ) page: 36   2014

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    DOI: 10.11316/jpsgaiyo.69.1.1.0_36_3

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  220. 29pSD-6 Estimation of stability of beam flux and its systematic uncertainty in neutron lifetime measurement at J-PARC/BL05

    Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Kitaguchi Masaaki, Higashi Nao, Yokoyama Harumichi, Yamada Takahito, Katayama Ryo, Sumino Hirochika, Mishima Kenji, Yamashita Satoru, Tanaka Genki, Otono Hidetoshi, Yoshioka Tamaki, Oide Hideyuki, Seki Yoshichika, Ino Takashi, Taketani Kaoru, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 69.1.1 ( 0 ) page: 36   2014

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    DOI: 10.11316/jpsgaiyo.69.1.1.0_36_2

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  221. 29pSD-5 Present status of neutron lifetime measurement at J-PARC/BL05

    Kitaguchi Masaaki, Sakakibara Risa, Sugino Tomoaki, Hirota Katsuya, Shimizu Hirohiko M., Yokoyama Harumichi, Higashi Nao, Yamada Takahito, Sumino Hirochika, Mishima Kenji, Yamashita Satoru, Tanaka Genki, Otono Hidetoshi, Yoshioka Tamaki, Oide Hidetoshi, Seki Yoshichika, Ino Takashi, Taketani Kaoru, Shima Tatsushi

    Meeting Abstracts of the Physical Society of Japan   Vol. 69.1.1 ( 0 ) page: 36   2014

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    DOI: 10.11316/jpsgaiyo.69.1.1.0_36_1

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  222. Concepts of Neutron Polarisation Analysis Devices for a New Neutron Chopper Spectrometer, POLANO, in J-PARC

    Ohoyama K., Yokoo T., Itoh S., Ino T., Ohkawara M., Oku T., Tasaki S., Iwasa K., Sato T. J., Ishimoto S., Taketani K., Kira H., Sakaguch Y., Nanbu M., Hiraka H., Shimizu H. M., Takeda M., Hino M., Hayashi K., Fliges U., Hautle P.

    1ST CONFERENCE ON LIGHT AND PARTICLE BEAMS IN MATERIALS SCIENCE 2013 (LPBMS2013)   Vol. 502 ( 1 )   2014

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    The basic concept of polarisation analysers with bender type supermirrors on the polarised neutron spectrometer, POLANO, which is now under construction in J-PARC/MLF, is described.

    DOI: 10.1088/1742-6596/502/1/012051

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  223. Development of a new neutron mirror made of deuterated Diamond-like carbon

    Sakurai Dai, Chiba Junsei, Ino Takashi, Kakusho Nobunori, Kaneko Naokatsu, Katayama Ryo, Kitaguchi Masaaki, Mishima Kenji, Muto Suguru, Ozeki Kazuhide, Seki Yoshichika, Shimizu Hirohiko M., Yamashita Satoru, Yoshioka Tamaki, Nishimura Daiki

    INTERNATIONAL WORKSHOP ON NEUTRON OPTICS AND DETECTORS (NOP&D 2013)   Vol. 528 ( 1 )   2014

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    Publisher:Journal of Physics: Conference Series  

    We developed a new neutron mirror made of Diamond-like carbon (DLC). DLC is a film of amorphous carbon that has characteristics of both diamond and graphite. We produced DLC mirrors by ionization deposition method which is one of the chemical vapor deposition (CVD). Generally, DLC made by CVD contents a few tens of percentages of hydrogen. It decreases the Fermi potential of the DLC coating because hydrogen has negative Fermi potential. In order to increase the Fermi potential of the coating, we deuterated the DLC by using deuterated benzene for the source gas. The characteristics of the deuterated DLC(DDLC) coating was evaluated by RBS, ERDA, x-ray reflectivity, AFM. As a result, DDLC coating has 243neV due to deuteration, which is the same level as Ni. The RMS of height of the DDLC was 0.6nm so that the DDLC coating can be applied for a focusing mirror or specular transportation of pulsed neutron. Besides, we also develop Hydrogen/Deuterium DLC multiple layer mirror. So far, 4 layers mirror has been succeeded. © Published under licence by IOP Publishing Ltd.

    DOI: 10.1088/1742-6596/528/1/012010

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  224. Rebunching ultracold neutrons by magnetic deceleration for the neutron edm experimental at J-parc

    Imajo S., Iwashita Y., Geltenbort P., Arimoto Y., Shimizu H.M., Kitaguchi M., Yoshioka T., Seki Y.

    IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference     page: 1187 - 1189   2013.12

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    Ultra cold neutrons (UCN), which have energies less than 300 neV, can be accelerated or decelerated by controlling static magnetic and RF fields. Neutron kinetic energies can inclease or declease when their spin flip. This method can be used to rebunch a pulsed beam of neutrons to a storage bottle that can store UCN with high density. High UCN densities can be achieved for precision measurements of neutron properties such as the Electric Dipole Moment. The results of a recent rst test experiments and present status of our development are reported.

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  225. An evaluation of the exposure in nadir observation of the JEM-EUSO mission

    Adams, JH; Ahmad, S; Albert, JN; Allard, D; Ambrosio, M; Anchordoqui, L; Anzalone, A; Arai, Y; Aramo, C; Asano, K; Ave, M; Barrillon, P; Batsch, T; Bayer, J; Belenguer, T; Bellotti, R; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Blaksley, C; Biccki, J; Blin-Bondil, S; Blümer, J; Bobik, P; Bogomilov, M; Bonamente, M; Briggs, MS; Briz, S; Bruno, A; Cafagna, F; Campana, D; Capdevielle, JN; Caruso, R; Casolino, M; Cassardo, C; Castellini, G; Catalano, O; Cellino, A; Chikawa, M; Christi, MJ; Connaughton, V; Cortés, JF; Crawford, HJ; Cremonini, R; Csorna, S; D'Olivo, JC; Dagoret-Campagne, S; de Castro, AJ; De Donato, C; de la Taille, C; del Peral, L; Dell'Oro, A; De Pascale, MP; Di Martino, M; Distratis, G; Dupieux, M; Ebersoldt, A; Ebisuzaki, T; Engel, R; Falk, S; Fang, K; Fenu, F; Fernández-Gómez, I; Ferrarese, S; Franceschi, A; Fujimoto, J; Galeotti, P; Garipov, G; Geary, J; Giaccari, UG; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guarino, F; Guzmán, A; Hachisu, Y; Harlov, B; Haungs, A; Carretero, JH; Higashide, K; Iguchi, T; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Joven, E; Judd, EG; Jung, A; Kajino, F; Kajino, T; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Katahira, K; Kawai, K; Kawasaki, Y; Keilhauer, B; Khrenov, BA; Kim, JS; Kim, SW; Kim, SW; Kleifges, M; Klimov, PA; Ko, SH; Kolev, D; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kuznetsov, E; La Rosa, G; Lee, J; Licandro, J; Lim, H; López, F; Maccarone, MC; Mannheim, K; Marcelli, L; Marini, A; Martin-Chassard, G; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Maurissen, A; Medina-Tanco, G; Mernik, T; Miyamoto, H; Miyazaki, Y; Mizumoto, Y; Modestino, G; Monnier-Ragaigne, D; de los Rios, JAM; Mot, B; Murakami, T; Nagano, M; Nagata, M; Nagataki, S; Nakamura, T; Nam, JW; Nam, S; Nam, K; Napolitano, T; Naumov, D; Neronov, A; Nomoto, K; Ogawa, T; Ohmori, H; Olinto, AV; Orleanski, P; Osteria, G; Pacheco, N; Panasyuk, MI; Parizot, E; Park, IH; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Peter, T; Picozza, P; Pollini, A; Prieto, H; Reardon, P; Reinabi, M; Reyes, M; Ricci, M; Rodriguez, I; Frias, MDR; Ronga, F; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sanchez, S; Santangelo, A; Cruz, LS; Palomino, MS; Saprykin, O; Sarazin, F; Sato, H; Sato, M; Schanz, T; Schieler, H; Scotti, V; Scuderi, M; Segreto, A; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shibata, T; Shimizu, HM; Shinozaki, K; Shirahama, T; Siemieniec-Ozigbio, G; López, HHS; Sledd, J; Slomiriska, K; Sobey, A; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Tenzer, C; Tibolla, O; Tkachev, L; Tomida, T; Tone, N; Trillaud, F; Tsenov, R; Tsuno, K; Tymieniecka, T; Uchihori, Y; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Valore, L; Vankova, G; Vigorito, C; Villaseñor, L; von Ballmoos, P; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Weiler, TJ; Wibig, T; Wiencke, L; Wille, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yamamoto, Y; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, K; Yoshida, S; Young, R; Zamora, A; Marchi, AZ

    ASTROPARTICLE PHYSICS   Vol. 44   page: 76 - 90   2013.4

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    We evaluate the exposure during nadir observations with JEM-EUSO, the Extreme Universe Space Observatory, on-board the Japanese Experiment Module of the International Space Station. Designed as a mission to explore the extreme energy Universe from space, JEM-EUSO will monitor the Earth's nighttime atmosphere to record the ultraviolet light from tracks generated by extensive air showers initiated by ultra-high energy cosmic rays. In the present work, we discuss the particularities of space-based observation and we compute the annual exposure in nadir observation. The results are based on studies of the expected trigger aperture and observational duty cycle, as well as, on the investigations of the effects of clouds and different types of background light. We show that the annual exposure is about one order of magnitude higher than those of the presently operating ground-based observatories. © 2013 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.astropartphys.2013.01.008

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  226. Basic Concepts of Polarisation Analysis for Neutron Chopper Spectrometer POLANO at J-PARC

    Ohoyama, K; Yokoo, T; Itoh, S; Suzuki, J; Iwasa, K; Sato, TJ; Kira, H; Sakaguchi, Y; Ino, T; Oku, T; Tomiyasu, K; Matsuura, M; Hiraka, H; Fujita, M; Kimura, H; Sato, T; Suzuki, J; Shimizu, HM; Arima, T; Takeda, M; Kaneko, K; Hino, M; Muto, S; Nojiri, H; Lee, CH; Park, JG; Choi, S

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   Vol. 82   2013.1

  227. Magnetic Neutron Optics and Its Applications

    SHIMIZU Hirohiko

    Journal of the Japan Society for Precision Engineering   Vol. 79 ( 9 ) page: 809 - 812   2013

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    DOI: 10.2493/jjspe.79.809

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  228. The improvement of the ultracold neutrons rebuncher for nEDM experiments at J-PARC

    Imajo S., Iwashita Y., Shimizu H.M., Kitaguchi M., Yoshioka T., Arimoto Y., Seki Y., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 68.2.1 ( 0 ) page: 28   2013

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    DOI: 10.11316/jpsgaiyo.68.2.1.0_28_1

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  229. 27pHC-13 中性子を用いた重力法則の検証(27pHC 実験核物理領域,素粒子実験領域,ビーム物理領域,理論核物理領域合同 J-PARCと原子核素粒子実験,実験核物理領域)

    松本 悟, 吉岡 瑞樹, 清水 裕彦, 嶋 達志, 猪野 隆, 北口 雅暁, 三島 賢二

    日本物理学会講演概要集   Vol. 68.1.1 ( 0 ) page: 96   2013

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    DOI: 10.11316/jpsgaiyo.68.1.1.0_96_1

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  230. 27aRF-2 The improvement of Dopplershifter in J-PARC/MLF to increase the ultracold neutron flux-

    Imajo S., Iwashita Y., Shimizu H. M., Yoshioka T., Kitaguchi M., Mishima K., Ino T., Arimoto Y., Seki Y., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 68.1.1 ( 0 ) page: 29   2013

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    DOI: 10.11316/jpsgaiyo.68.1.1.0_29_2

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  231. 26aXZB-2 Progress of Polarisation Analysis Neutron Spectrometer Project in J-PARC

    Ohoyama K., Yokoo T., Itoh S., Suzuki J., Sato T. J., Iwasa K., Kira H., Sakaguchi Y., Oku T., Ino T., Hiraka H., Matsuura M., Fujita M., Tomiyasu K., Kimura H., Suzuki J., Shimizu H. M., Arima T., Takeda M., Kaneko K., Hino M., Muto S., Nojiri H., Lee C. H., Park J. G., Choi S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 68.1.4 ( 0 ) page: 1012   2013

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    DOI: 10.11316/jpsgaiyo.68.1.4.0_1012_4

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  232. 26aXZB-2 Progress of Polarisation Analysis Neutron Spectrometer Project in J-PARC

    Ohoyama K., Yokoo T., Itoh S., Suzuki J., Sato T. J., Iwasa K., Kira H., Sakaguchi Y., Oku T., Ino T., Hiraka H., Matsuura M., Fujita M., Tomiyasu K., Kimura H., Suzuki J., Shimizu H. M., Arima T., Takeda M., Kaneko K., Hino M., Muto S., Nojiri H., Lee C. H., Park J. G., Choi S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 68.1.1 ( 0 ) page: 146   2013

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    DOI: 10.11316/jpsgaiyo.68.1.1.0_146_2

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  233. Fundamental physics with slow neutrons

    Shimizu H.

    Proceedings of Science   Vol. 2013-December   2013

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    A neutron beamline for the study of the fundamental physics has been constructed at the spallation neutron source of the Japan Proton Accelerator Research Complex (J-PARC). In-flight measurement of the neutron lifetime and the preparation for the study of T-violation using neutrons is in progress. Present status of the beamline and present activities are reported.

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  234. Magnetic shield design of in-situ SEOP polarized <sup>3</sup>He neutron spin filter system

    Kira H., Sakaguchi Y., Suzuki J., Oku T., Nakamura M., Arai M., Kakurai K., Endo Y., Arimoto Y., Ino T., Shimizu H.M., Kamiyama T., Ohoyama K., Hiraka H., Tsutsumi K., Yamada K., Chang L.J.

    Physics Procedia   Vol. 42   page: 200 - 205   2013

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    A polarized 3He neutron spin filter requires a suitably homogeneous magnetic environment to avoid depolarization of 3He nuclear spin. In the present study, we discussed the required performance of the magnetic shield for an in-situ spin exchange optical pumping neutron spin filter system and designed a magnetic shield with T1mag > 100 h under a magnetic field of 3.5 mT perpendicular to the guide field. We then constructed the magnetic shield and confirmed its performance. Finally, we succeeded in developing a magnetic shield for a polarized 3He neutron spin filter system for J-PARC. © 2013 The Authors.

    DOI: 10.1016/j.phpro.2013.03.195

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  235. Rebunching low energy neutrons by magnetic acceleration and deceleration

    Iwashita Y., Imajo S., Kitaguchi M., Arimoto Y., Shimizu H.M., Yoshioka T., Seki Y., Geltenbort P.

    IPAC 2012 - International Particle Accelerator Conference 2012     page: 2766 - 2768   2012.12

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    Acceleration control for neutrons was demonstrated. Ultra cold neutrons (UCN) -neutrons with energies less than 300 neV - can be accelerated or decelerated by means ofstatic magnetic and RF fields. Neutrons have a magnetic dipole moment, and hence theirkinetic energies vary depending on their spin in magnetic fields. Their kinetic energiesare restored when they leave the magnetic field area if their spin did not flip. A spinflip can be triggered by applying an RF field whose frequency coincides with the spinprecession frequency of a neutron in this magnetic field. This allows to tune the kineticenergy of neutrons. This method can be used to rebunch a pulsed beam of neutrons to astorage bottle that can store UCN. By opening and closing the storage bottle synchronouslywith the rebuncher, high UCN densities can be achieved for precision measurements ofneutron properties such as the Electric Dipole Moment. Copyright © 2012 by IEEE.

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  236. Demonstration of focusing by a neutron accelerator

    Arimoto, Y; Gertenbort, P; Imajo, S; Iwashita, Y; Kitaguchi, M; Seki, Y; Shimizu, HM; Yoshioka, T

    PHYSICAL REVIEW A   Vol. 86 ( 2 )   2012.8

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    Publisher:Physical Review A - Atomic, Molecular, and Optical Physics  

    Space-time focusing was demonstrated by a neutron accelerator. Test experiments were performed by using very slow neutrons at High-Flux Reactor at Institut Laue-Langevin. Focusing of neutrons at the detector position through the accelerator was observed. Focusing neutrons enables us to transport the neutrons while maintaining density from source to experimental position. This will be a powerful technique for measurement of the permanent electric dipole moment of neutrons, which require a high density of neutrons. © 2012 American Physical Society.

    DOI: 10.1103/PhysRevA.86.023843

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  237. Variable permanent magnet multipoles

    Iwashita Y., Yamada M., Ushijima S., Fuwa Y., Nasu Y., Tongu H., Masuzawa M., Shimizu H.

    IEEE Transactions on Applied Superconductivity   Vol. 22 ( 3 )   2012.6

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    Permanent magnet quadrupoles (PMQ) and sextupoles (PMSx) have been fabricated and tested. Their effective strengths are variable. The PMQ has been developed as a final focus magnet for a linear collider. There is enough space to put Gluckstern's 5-ring singlet structures in each incoming beam line. The magnetic center offsets and higher harmonic components can be adjusted by adjusting the positions of the magnet pieces with screws on holders. The measured integrated gradient can be reduced down to less than 1% of the maximum strength. The PMSx has been developed to focus pulsed cold neutrons for a small angle neutron scattering (SANS) experiment. The strength is modulated by a so called double ring structure, where the inner ring is fixed and the outer ring is rotated. A torque canceller can reduce the torque to rotate the outer ring by one third of its original magnitude. The focal length of the fabricated triplet lens is less than 50 cm for Very Cold Neutrons (VCN). It is demonstrated that VCN-SANS can shorten a SANS beamline, which usually has a few tens of meters, down to 2 ∼ 3 meters. © 2002-2011 IEEE.

    DOI: 10.1109/TASC.2012.2185471

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  238. Demonstration of optical thickness measurement using multilayer cold neutron interferometer

    Seki Y., Uda J., Funahashi H., Kitaguchi M., Hino M., Otake Y., Taketani K., Shimizu H. M.

    5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING   Vol. 340   2012

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    Publisher:Journal of Physics: Conference Series  

    We have measured the optical thickness of a phase object for the first time using multilayer cold neutron interferometer. The measured phase shift of 15.1 ± 1.9 wavelength agreed with the expected value of 17.4 ± 0.7 wavelength due to an about 600-μm-thick silicon plate. This demonstration reconfirmed that two paths in our new interferometer were completely separate, and showed its applicability into various precise measurements.

    DOI: 10.1088/1742-6596/340/1/012039

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  239. 14aSG-3 低エネルギー中性子小角散乱を用いた重力法則の検証(14aSG 新粒子・新物理の探索,素粒子実験領域)

    松本 悟, 吉岡 瑞樹, 清水 裕彦, 嶋 達志, 猪野 隆

    日本物理学会講演概要集   Vol. 67.2.1 ( 0 ) page: 25   2012

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    DOI: 10.11316/jpsgaiyo.67.2.1.0_25_1

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  240. 11aSG-7 Development of a ultracold neutrons rebuncher in J-PARC/MLF

    Imajo S., Iwashita Y., Shimizu H. M., Yoshioka T., Kitaguchi M., Arimoto Y., Seki Y., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.2.1 ( 0 ) page: 13   2012

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    DOI: 10.11316/jpsgaiyo.67.2.1.0_13_4

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  241. 11aSG-6 Estimation of nonspecular reflection of ultracold neutrons from surface roughness

    Seki Yoshichika, Kitaguchi Masaaki, Yoshioka Tamaki, Shimizu Hirohiko, Yamada Norifumi, NOP Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.2.1 ( 0 ) page: 13   2012

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.67.2.1.0_13_3

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  242. 11aSG-5 Development of neutron mirror with diamond-like carbon film

    Sakurai D., Shimizu H., Ino T., Yoshioka T., Kitaguchi M., Mishima K., Kakusho N., the NOP Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.2.1 ( 0 ) page: 13   2012

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    DOI: 10.11316/jpsgaiyo.67.2.1.0_13_2

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  243. 24aFA-7 Demonstration of transport system of high-density ultra-cold neutrons for nEDM measurement

    Kitaguchi M., Yoshioka T., Shimizu H. M., Arimoto Y., Taketani K., Ino T., Muto G., Iwashita Y., Imajo S., Mishima K., Kamiya Y., Yamashita S., Seki Y., Asahi K., Yoshimi A., Shima T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.1.1 ( 0 ) page: 24   2012

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    DOI: 10.11316/jpsgaiyo.67.1.1.0_24_2

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  244. 27aXC-10 ∧ photoproduction detected with electromagnetic calorimeter FOREST

    Tsuchikawa Y., Fujimura H., Hashimoto R., Ishikawa T., Masumoto S., Miyabe M., Nakamura A., Shimizu H, Suzuki K., Yamazaki H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.1.1 ( 0 ) page: 112   2012

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    DOI: 10.11316/jpsgaiyo.67.1.1.0_112_4

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  245. 25pCL-5 Limiting factors to attainable ^3He-plarization in spin-exchange optical pumping of polarized ^3He neutron spin filters

    Sakaguchi Y., Kira H., Oku T., Shinohara J., Suzuki J., Sakai K., Nakamura M., Suzuya K., Aizawa K., Arai M., Takeda N, Endoh Y., Arimoto Y., Ino T., Shimizu M., Kamiyama T., Ohoyama K., Hiraka H., Yamada K., Chang L. J., Ohara K., Kakurai K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.1.4 ( 0 ) page: 1006   2012

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    DOI: 10.11316/jpsgaiyo.67.1.4.0_1006_3

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  246. 25pCL-14 Progress of Polarisation Analysis Neutron Spectrometer Project in J-PARC

    Ohoyama K., Iwasa K., Yokoo Y., Itoh S., Tomiyasu K., Matusura M., Hiraka H., Fujita M., Kimura H., Sato T., Sato T.J., Arima T., Ino T., Kira H., Sakaguchi Y., Oku T., Arimoto Y., Suzuki J., Shimizu H.M., Takeda M., Kaneko K., Hino M., Muto G., Nojiri H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 67.1.4 ( 0 ) page: 1008   2012

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    DOI: 10.11316/jpsgaiyo.67.1.4.0_1008_3

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  247. Development of polarized Xe gas target for neutron experiment at J-PARC

    Sakai K., Oku T., Shinohara T., Kira H., Ooi M., Maekawa F., Kakurai K., Ino T., Arimoto Y., Shimizu H. M., Sakaguchi Y., Suzuki J., Ohoyama K., Chang L. J.

    5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING   Vol. 340   2012

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    At the Materials and Life science experimental Facility (MLF) in J-PARC, an experiment of detecting a neutron polarizing ability caused by a neutron-nuclear spin correlation at a resonant peak of 129Xe is planned. We evaluated measurable quantities based on a neutron optical theorem, developed a polarized Xe gas system, and carried out a feasibility test of our apparatus.

    DOI: 10.1088/1742-6596/340/1/012037

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  248. Measurement of the neutron beam polarization of BL05/NOP beamline at J-PARC

    Ino, T; Arimoto, Y; Yoshioka, T; Mishima, K; Taketani, K; Muto, S; Shimizu, HM; Kira, H; Sakaguchi, Y; Oku, T; Sakai, K; Shinohara, T; Suzuki, J; Otono, H; Oide, H; Yamashita, S; Imajo, S; Funahashi, H; Yamada, M; Iwashita, Y; Kitaguchi, M; Hino, M; Suzuki, Z; Sanuki, T; Seki, T; Hirota, K; Ikeda, K; Sato, H; Otake, Y; Ohmori, H; Morishima, T; Shima, T

    PHYSICA B-CONDENSED MATTER   Vol. 406 ( 12 ) page: 2424 - 2428   2011.6

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    We measured the neutron beam polarization of the BL05/NOP (Neutron Optics and Physics) beamline at J-PARC with an accuracy of less than 10-3 using polarized 3He gas as a neutron spin analyzer. Precise polarimetry of the neutron beam is necessary to understand the beamline optics as well as for the asymmetry measurements of the neutron beta decay, which are planned in this beamline. © 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2011.01.009

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  249. Development and test of SEOP neutron spin filter in Japan

    Kira H., Sakaguchi Y., Oku T., Suzuki J., Nakamura M., Arai M., Kakurai K., Endo Y., Arimoto Y., Ino T., Shimizu H.M., Kamiyama T., Tsutsumi K., Ohoyama K., Hiraka H., Yamada K., Chang L.J.

    Physica B: Condensed Matter   Vol. 406 ( 12 ) page: 2433 - 2435   2011.6

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    We have begun the development of an in-situ spin-exchange optical pumping (SEOP) system aiming to use it as a neutron spin filter for incident beam polarization at the Japan Proton Accelerator Research Complex (J-PARC). To use it, it is recommended that the optics be adjusted easily, have high stability, and have a small size. In this paper we improved our previous SEOP system aiming to use it in J-PARC and performed a neutron beam test at the JRR-3 NOP beamline to see the performance of the neutron spin filter (NSF). The polarization of the 3He gas reached 73%. This paper gives the present status of the development of in-situ SEOP system in J-PARC. © 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2010.12.019

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  250. External cavity design of high-power diode laser for polarized helium-3 neutron spin filters based on spin-exchange optical pumping

    Arimoto Y., Ino T., Shimizu H.M., Kamiyama T., Kira H., Oku T., Sakaguchi Y., Kakurai K., Sakai K., Suzuki J., Koizumi S., Arai M., Endo Y., Nakamura M., Shinohara T., Takeda M., Wakimoto S., Yamazaki D., Ohoymama K., Hiraka H., Yamada K., Tsutsumi K., Chang L.J.

    Physica B: Condensed Matter   Vol. 406 ( 12 ) page: 2439 - 2442   2011.6

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    Polarized neutron spin filters are being developed based on spin-exchange optical pumping. In the present study a high-power diode laser (85 W) was used to excite Rb atoms and the laser linewidth was narrowed using an external cavity. The optics in the external cavity were designed by ray tracing. The ray-trace calculations demonstrated that a doublet lens in front of the laser eliminates aberrations. The maximum spectral peak height in the doublet optics was found to be 25% higher than for a singlet lens. © 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2010.11.089

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  251. A transport optics for pulsed ultracold neutron sources

    Shimizu H.M., Iwashita Y., Kitaguchi M., Mishima K., Yoshioka T.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 634 ( 1 SUPPL. ) page: S25 - S27   2011.4

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    High-density ultracold neutron (UCN) is commonly desired for the improvement of the experimental sensitivity to measure the electric dipole moment of neutrons. We discuss a method to suppress the decrease of the UCN density in transporting UCNs to the spatially separated storage volume by changing the UCN velocity synchronizing to the UCN time-of-flight. © 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2010.06.210

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  252. The performance of magnetic lens for focusing VCN-SANS

    Yamada, M; Iwashita, Y; Kanaya, T; Ichikawa, M; Tongu, H; Kennedy, SJ; Shimizu, HM; Mishima, K; Yamada, NL; Hirota, K; Carpenter, JM; Lal, J; Andersen, K; Geltenbort, P; Guerard, B; Manzin, G; Hino, M; Kitaguchi, M; Bleuel, M

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 634 ( 1 SUPPL. ) page: S156 - S160   2011.4

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    We have developed a prototype rotating-permanent magnet sextupole lens (named rot-PMSx) for more efficient experiments with neutron beams in time of flight (ToF) mode. This lens can modulate the focusing strength over range 1.5×104T/m2g′5.9×104T/ m2. Synchronization between the modulation and the beam pulse produces a focused beam without significant chromatic aberration. We anticipate that this lens could be utilized in focusing small angle neutron scattering (SANS) instruments for novel approach to high resolution SANS. We carried out experiments testing the principle of this lens at the very cold neutron (VCN) beamline (PF2) at Institut Laue-Langevin (ILL), France. The focused beam image size at the detector was kept constant at the same beam size as the source (≈3mm) over a wavelength range of 30λ48 in focal length of ≈1.14m. The flux gain was about 12 relative to a beam without focusing, and the depth of focus was quite large. These results show the good performance of this lens and the system. Thereupon we have demonstrated the performance of this test bed for high resolution focusing of VCN-SANS for a well-studied softmatter sample; a deuterium oxide solution of Pluronic F127, an (PEO)100(PPO) 65(PEO)100 tri-block copolymer in deuterium oxide. The results of the focusing experiment and the focusing VCN-SANS are presented. © 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2010.06.259

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  253. Satellite pulsed tiny neutron source at Kyoto University, Sakyo

    Iwashita Y., Nagae T., Tanimori T., Fujioka H., Shimizu H.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 634 ( 1 SUPPL. )   2011.4

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    A pulsed neutron source facility will be constructed at Kyoto University, where the accelerated 3.5 MeV proton beam will bombard a Li or Be target to generate neutrons. The average current, the pulse width and the typical repetition rate are 100 μA, 100 μs and 70 Hz, respectively. The purposes of the system are neutron imaging, material science, fundamental physics, etc. This kind of compact facility, which can be distributed at modest cost, will help to incubate new ideas and promote growth of neutron science worldwide. © 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2010.06.356

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  254. A high <i>S</i>/<i>N</i> ratio spin flip chopper system for a pulsed neutron source

    Taketani, K; Ebisawa, T; Hino, M; Hirota, K; Ino, T; Kitaguchi, M; Mishima, K; Muto, S; Oide, H; Oku, T; Otone, H; Sakai, K; Shima, T; Shimizu, HM; Yamashita, S; Yoshioka, T

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 634   page: S134 - S137   2011.4

  255. 16aSD-5 Development of transport system of high-density ultra-cold neutrons for nEDM measurement II

    Kitaguchi M., Yoshioka T., Mishima K., Arimoto Y., Taketani K., Ino T., Muto G., Shimizu H.M., Iwashita Y., Imajo S., Kamiya Y., Yamashita S., Asahi K., Yoshimi A., Shima T., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.2.1 ( 0 ) page: 14   2011

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    DOI: 10.11316/jpsgaiyo.66.2.1.0_14_4

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  256. 22aJA-6 Development of glass cells for polarized ^3He neutron spin filters IV

    Sakaguchi Y., Kira H., Oku T., Shinohara T., Suzuki J., Sakai K., Nakamura M., Suzuya K., Aizawa K., Arai M., Takeda M., Endoh Y., Arimoto Y., Ino T., Shimizu H. M., Kamiyama T., Ohoyama K., Hiraka H., Yamada K., Chang L. J., Ohara K., Kakurai K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.2.4 ( 0 ) page: 983   2011

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    DOI: 10.11316/jpsgaiyo.66.2.4.0_983_2

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  257. 16aSD-7 Ultracold neutron generation by means of Doppleishifter in J-PARC/MLF III

    Imajo S., Fujioka H., Shimizu H.M., Mishima K., Yoshioka T., Kitagurhi M., Hino M., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.2.1 ( 0 ) page: 15   2011

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    DOI: 10.11316/jpsgaiyo.66.2.1.0_15_1

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  258. 22pJA-2 Progress of Polarisation Analysis Neutron Spectrometer Project in J-PARC

    Ohoyama K., Iwasa K., Yokoo Y., Itoh S., Hiraka H., Fujita M., Matusura M., Kimura H., Tomiyasu K., Sato T., Sato T. J., Arima T., Ino T., Kira H., Sakaguchi Y., Oku T., Arimoto Y., Suzuki J., Shimizu H. M., Takeda M., Kaneko K., Hino M., Muto G., Nojiri H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.2.4 ( 0 ) page: 995   2011

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    DOI: 10.11316/jpsgaiyo.66.2.4.0_995_1

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  259. 28aGB-8 Development of transport system of high-density ultra-cold neutrons for nEDM measurement

    Kitaguchi M., Yoshioka T., Mishima K., Arimoto Y., Taketani K., Ino T., Muto G., Shimizu H. M., Iwashita Y., Imajo S., Kamiya Y., Yamashita S., Asahi K., Yoshimi A., Shima T., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.1.1 ( 0 ) page: 31   2011

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    DOI: 10.11316/jpsgaiyo.66.1.1.0_31_3

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  260. 28aGB-7 Ultracold neutron generation by means of Dopplershifter in J-PARC/MLF

    Imajo S., Fujioka H., Shimizu H. M., Mishima K., Yoshioka T., Kitaguchi M., Hino M., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.1.1 ( 0 ) page: 31   2011

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    DOI: 10.11316/jpsgaiyo.66.1.1.0_31_2

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  261. 25aTN-6 Present Status of Polarized Spectrometer Project in J-PARC

    Ohoyama K., Iwasa K., Itoh S., Yokoo Y., Hiraka H., Fujita M., Matusura M., Sato T., Horigane K., Sato T. J., Tomiyasu K., Arima T., Ino T., Kira H., Sakaguchi K., Oku T., Arimoto Y., Suzuki J., Shimizu H. M., Takeda M., Kaneko K., Hino M., Muto G., Nojiri H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 66.1.4 ( 0 ) page: 952   2011

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    DOI: 10.11316/jpsgaiyo.66.1.4.0_952_2

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  262. Filaggrin gene defects and the risk of developing allergic disorders

    Osawa R., Akiyama M., Shimizu H.

    Allergology International   Vol. 60 ( 1 ) page: 1 - 9   2011

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    Publisher:Allergology International  

    Filaggrin is a key protein that facilitates terminal differentiation of the epidermis and formation of the skin barrier. Mutations in the gene encoding filaggrin (FLG) have been identified as the cause of ichthyosis vulgaris (IV) and have been shown to be major predisposing factors for atopic dermatitis (AD). Approximately 40 loss-offunction FLG mutations have been identified in patients with ichthyosis vulgaris (IV) and/or atopic dermatitis (AD) in Europe and Asia. Major differences exist in the spectra of FLG mutations observed between different ancestral groups. Notably, prevalent FLG mutations are distinct between European and Asian populations. Many cohort studies on FLG mutations in AD have revealed that approximately 25-50% of AD patients harbour filaggrin mutations as a predisposing factor. In addition, FLG mutations are significantly associated with ADassociated asthma. The risk for developing allergic rhinitis is also significantly higher with a FLG mutation, both with and without accompanying AD. Recent studies have hypothesized that skin barrier defects caused by FLG mutations allows allergens to penetrate the epidermis and to interact with antigen-presenting cells, leading to the development of atopic disorders including asthma. The restoration of skin barrier function seems a feasible and promising strategy for prophylactic treatment of AD patients with FLG mutations. © 2011 Japanese Society of Allergology.

    DOI: 10.2332/allergolint.10-RAI-0270

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  263. Longitudinal-gradient magnet for time focusing of ultra-cold neutrons

    Arimoto Y., Yoshioka T., Shimizu H. M., Mishima K., Ino T., Taketani K., Muto S., Kitaguchi M., Imajo S., Iwashita Y., Yamashita S., Kamiya Y., Yoshimi A., Asahi K., Shima T., Sakai K.

    2ND INTERNATIONAL WORKSHOP ON THE PHYSICS OF FUNDAMENTAL SYMMETRIES AND INTERACTIONS (PSI)   Vol. 17   page: 20 - 29   2011

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    Publisher:Physics Procedia  

    A gradient DC magnet is designed using 3D magnetic field analysis code. This magnet, referred to as a B0 magnet, is one of the key elements of a time-focusing device for ultra-cold neutrons (UCNs) based on a radio frequency gradient flipper - a so-called rebuncher. The magnet generates a guide and a potential field that interacts with the magnetic moment of UCNs and its main body comprises a C-shaped yoke made from iron. A field gradient is generated by a pole arrangement that includes an anisotropic inter-pole, which causes the fringe field to be uniform in the longitudinal direction even when the pole gap distance changes. The designed magnet has the following properties: (1) a maximum B-field of 10 kGauss, decreasing to 2 kGauss at a longitudinal distance of 25 cm, with a gradient of less than 400 Gauss/cm, (2) variations in the fringe field along the y direction is less than 4% over a range of -3 cm≤ y ≤ 3 cm at any z position in the spin-flipping region. Tracking simulations show that the B0 magnet is capable of accepting UCNs in the velocity range 2.3∼3.3 m/s. © 2011 Published by Elsevier B.V.

    DOI: 10.1016/j.phpro.2011.06.013

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  264. The novel method of focusing-sans with rotating magnetic sextupole lens and very cold neutrons

    Yamada M., Iwashita Y., Ichikawa M., Tongu H., Kanaya T., Kennedy S.J., Yamada N.L., Shimizu H.M., Mishima K., Hino M., Kitaguchi M., Hirota K., Geltenbort P., Guerard B., Manzin G., Andersen K., Lal J., Carpenter J.M., Bleuel M.

    IPAC 2010 - 1st International Particle Accelerator Conference     page: 427 - 429   2010.12

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    Publisher:IPAC 2010 - 1st International Particle Accelerator Conference  

    We are developing a high-resolution small angle neutron scattering (SANS) instrument utilizing pulsed white very cold neutrons (VCN) and modulating magnetic lens for focusing in time of flight (ToF) mode. The magnetic lens adopted new modulation method for focusing pulsed neutron beams over some wavelength range without chromatic aberration; the lens is composed of two concentric permanent magnet arrays in sextupole geometry and the rotation of outer array about fixed inner array provides sinusoidal field gradient modulation. We named this lens as rotating-Permanent Magnet Sextupole lens (rot-PMSx). We have fabricated the prototype of rot-PMSx with the bore diameter ø15 mm and the magnetic length 66 mm. The modulation range of magnetic field strength g inside the bore 1.5×104 T/m ≤ g ≤ 5.9×10 T/m2 and the repetition rate ≤ 25 Hz [1, 2]. We proved the focusing principle with it at PF2-VCN beam line in Institut Laue Langevin (ILL), France [3]. The focused beam image size was kept constant at the same beam size as the source (≈ 3 mm) over wavelength range of 30 Å ≤ λ ≤ 48 Å in focal length of ≈ 1.14 mm while the depth of focus was quite large. These results showed good performance of the rot-PMSx and we moved on to the demonstration of its performance as high-resolution VCN-f-SANS in this compact geometry of just 5 meters. We chose a tri-block copolymer poly(oxyeheylen-oxypropylene-oxyeheylen)(PEO100-PPO 65-PEO100) called Pluronic F127 as a sample, which has been well studied since 1990' [4]. The measureable q range of this system were 0.009 Å-1 ≤ q ≤ 0.3 Å-1 or 0.004 Å-1 q ≤ 0.08 Å-depending on the distances between the sample to detector 100 mm or 465 mm. The results of fitting these data to reasonable models were well consistent with one of same experiments carried out in the past. These results in two experiments are presented together.

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  265. Practical Applications of Permanent Magnet Multipoles

    Iwashita, Y; Ichikawa, M; Yamada, M; Sugimoto, T; Tongu, H; Fujisawa, H; Masuzawa, M; Tauchi, T; Oku, T; Hirota, K; Shimizu, HM; Shi, C; Zhu, Y

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 20 ( 3 ) page: 842 - 845   2010.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    Permanent magnets are superior to electromagnets in generating strong multipole magnetic fields. Their fields are sometimes stronger than those that can be generated by superconducting magnets with the same bore radius, when the number of poles are higher. Three fabricated multipoles including a quadrupole magnet for the ILC (International Linear Collider) final focus doublet, a quadrupole magnets as a spin filter for cold neutrons, and a sextupole magnet for neutron beam focusing are described. © 2006 IEEE.

    DOI: 10.1109/TASC.2010.2040604

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  266. The Neutron Optics and Physics Beamline at J-PARC

    Shimizu Hirohiko

    hamon   Vol. 20 ( 1 ) page: 25 - 29   2010

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    Language:Japanese   Publisher:The Japanese Society for Neutron Science  

    <p>A new beamline for a fundamental physics experiment has been built at the BL05 port in the Materials and Life Science Facility (MLF) in Japan Proton Accelerator Research Complex (J-PARC), and the first neutron beam was delivered on December 9th, 2008. This beamline is designed using novel techniques of neutron optics, and it is termed “Neutron Optics and Physics (NOP)." The beam from the moderator is deflected by multi-channel supermirrors and split into three branches for individual experiments. Physics with cold neutrons at the NOP beamline is discussed.</p>

    DOI: 10.5611/hamon.20.1_25

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  267. 13aSK-8 Ultracold neutron generation by means of Dopplershifter in J-PARC/MLF

    Imajo S., Fujioka H., Shimizu H. M., Mishima K., Yoshioka T., Kitaguchi M., Hino M., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 65.2.1 ( 0 ) page: 18   2010

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    DOI: 10.11316/jpsgaiyo.65.2.1.0_18_1

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  268. 22pBF-4 Development of Dopplershifter for ultracold neutron generation in J-PARC

    Imajo S., Fujioka H., Shimizu H., Mishima K., Yoshioka T., Kitaguchi M., Hino M., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 65.1.1 ( 0 ) page: 142   2010

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    DOI: 10.11316/jpsgaiyo.65.1.1.0_142_3

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  269. 23aEF-4 Observation of the phase transition of the water soluble 3-block copolymer (PEO-PPO-PEO) with focusing VCN-SANS

    Yamada M., Iwashita Y., Kanaya T., Ichikawa M., Tongu H, Shimizu H. M., Yamada N. L., Mishima K., Hirota K., Hino M., Kitaguchi M., Kennedy Shane J., Guerald Bruno, Manzin Giuliana, Andersen Ken, Geltenbort Peter, Lal Jyotsana, Carpenter John M., Bleuel Markus, NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 65.1.2 ( 0 ) page: 396   2010

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.65.1.2.0_396_3

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  270. 23pHT-8 Development of Polarization Measurement Devices for Polarized ^3He Gas Neutron Spin Filters

    Kira H., Sakaguchi Y., Oku T., Suzuki J., Nakamura M., Arai M., Endo Y., Kakurai K., Arimoto Y., Ino T., Shimizu H., Kamiyama T., Sato H., Sato T., Kamiyama T., Kiyanagi Y., Tsutumi K., Ohoyama K., Hiraka H., Yamada K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 65.1.4 ( 0 ) page: 1016   2010

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    DOI: 10.11316/jpsgaiyo.65.1.4.0_1016_4

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  271. 23pHT-7 Development of glass cells for polarized ^3He neutron spin filters

    Sakaguchi Y., Kira H., Oku T., Suzuki J., Nakamura M., Arai M., Endoh Y., Kakurai K., Takeda M., Wakimoto S., Yamazaki D., Koizumi S., Arimoto Y., Ino T., Shimizu H. M., Kamiyama T., Ohyama K., Hiraka H., Tsutsumi K., Yamada K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 65.1.4 ( 0 ) page: 1016   2010

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.65.1.4.0_1016_3

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  272. Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons

    Yamada M., Iwashita Y., Ichikawa M., Tongu H., Fujisawa H., Shimizu H.M., Ino T., Mishima K., Taketani K., Morishima T., Mutou S., Yoshioka T., Oku T., Sakai K., Shinohara T., Suzuki J.I., Hirota K., Otake Y., Sato H., Seki Y., Kawasaki S., Otono H., Komamiya S., Yamashita S., Kamiya Y., Geltenbort P.

    Proceedings of the 24th Linear Accelerator Conference, LINAC 2008     page: 263 - 265   2009.12

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    Publisher:Proceedings of the 24th Linear Accelerator Conference, LINAC 2008  

    Cold neutron beams can be focused by a strong sextupole magnetic field. A permanent magnet sextupole lens whose focusing strength can be synchronously modulated at the rate of pulsed cold neutron beams is under development. This device should keep the focal point for pulsed neutron beams whose wavelength spreads as a function of time of flight. This kind of device improves the utilization of valuable neutrons and saves experiment time and costs. It will raise linac based small neutron sources as a good counter part to large powerful neutron facilities. Experimental results that were obtained at Institute Laue-Langevin (ILL) are also described.

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  273. A small angle neutron scattering (SANS) experiment using very cold neutrons (VCN)

    Bleuel, M; Carpenter, JM; Micklich, BJ; Geltenbort, P; Mishima, K; Shimizu, HM; Iwashita, Y; Hirota, K; Hino, M; Kennedy, SJ; Lal, J

    PHYSICA B-CONDENSED MATTER   Vol. 404 ( 17 ) page: 2629 - 2632   2009.9

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    Publisher:Physica B: Condensed Matter  

    This paper describes the results of SANS measurements of small samples using the very cold neutron (VCN) beam of the PF2 instrument at the Institut Laue Langevin (ILL), France. In addition to a classical SANS pinhole collimation, the experiment used a polarizing supermirror as a monochromator and a magnetic sextupole lens to focus the neutron beam in order to gain intensity and avoid any material in the neutron beam besides the sample.

    DOI: 10.1016/j.physb.2009.06.048

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  274. Simulation study of a pulsed neutron focusing using a pulsed electromagnetic lens coupled with a permanent magnet

    Iwashita H., Iwasa H., Hiraga F., Kamiyama T., Kiyanagi Y., Suzuki J., Shinohara T., Oku T., Shimizu H.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 600 ( 1 ) page: 129 - 131   2009.2

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    A pulsed sextupole electromagnetic lens with suitably controlled time-dependent magnetic field can in principle focus pulsed neutrons at the same focal point over a wide range of wavelength as the lens removes aberrations. However, in fact, it is difficult to focus neutrons over a wide range of wavelength because attenuation of a practical pulsed sextupole electromagnet is faster than an ideal case. We have devised a method of canceling the difference between the practical pulsed sextupole magnetic field and the ideal magnetic field with the use of a permanent sextupole magnet. We performed simulation calculations to investigate the feasibility of this method, and it was shown that focusing wavelength range spread compared with the case using a pulsed magnetic lens only. This result indicates the usefulness of the method. © 2008.

    DOI: 10.1016/j.nima.2008.11.105

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  275. 13aSA-1 Observation Experiment of Gravity Induced Quantum States of Ultra-Cold Neutrons : Results at ILL/PF2 I

    Ichikawa Go, Kawasaki Shinsuke, Komamiya Sachio, Kamiya Yoshio, Sanuki Tomoyuki, Shimizu Hirohiko M., Hino Masahiro, Kitaguchi Masaaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.2.1 ( 0 ) page: 27   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.2.1.0_27_2

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  276. 13aSA-2 Observation Experiment of Gravity Induced Quantum States of Ultra-Cold Neutrons : Results at ILL/PF2 II

    Kawasaki Shinsuke, Ichikawa Go, Komamiya Sachio, Kamiya Yoshio, Sanuki Tomoyuki, Shimizu Hirohiko M., Hino Masahiro, Kitaguchi Masaaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.2.1 ( 0 ) page: 27   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.2.1.0_27_3

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  277. 27aSB-8 Spin flip chopper for J-PARC BL05

    Kitaguchi Masaaki, Hino Masahiro, Mishima Kenji, Taketani Kaoru, Yoshioka Tamaki, Muto Suguru, Ino Takashi, Shimizu Hirohiko M., Shima Tatsushi, Sakai Kenji, Seki Yoshichika, Funahashi Haruhiko, Sato Hiromi, Hirota Katsuya, Otake Yoshie, Otono Hidetoshi, Yamashita Satoru, Suzuki Zenmei, Sanuki Tomoyuki, NOP Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.1.1 ( 0 ) page: 25   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_1

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  278. 30aRE-12 Present Status of Experimental Apparatus for Neutron Optics and Physics at J-PARC BL05

    Sakai K., Muto S., Ino T., Yoshioka T., Mishima K., Taketani K., Shimizu H., NOP BL Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.1.4 ( 0 ) page: 975   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.1.4.0_975_1

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  279. 27pYK-8 Development of Polarized ^3He Neutron Spin Filters I

    Arimoto Y., Ino T., Shimizu H. M., Kamiyama T., Kira H., Sakaguchi Y., Oku T., Suzuki J., Nakamura M., Arai M., Endo Y., Kakurai K., Ohyama K., Hiraka H., Yamada K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.2.4 ( 0 ) page: 882   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.2.4.0_882_2

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  280. 27pYK-2 Neutron Optics and Physics (NOP) beamline BL05 at J-PARC/MLF

    Ino T., Mishima K., Taketani K., Yoshioka T., Arimoto Y., Muto S., Shimizu H. M., Otono H., Oide H., Kubota T., Yamashita S., Suzuki Z., Sanuki T., Sakai K., Suzuki J., Oku T., Shinohara T., Kitaguchi M., Hino M., Yamada M., Iwashita Y., Shima T., Seki Y., Funahashi H., Hirota K., Otake Y.

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.2.4 ( 0 ) page: 881   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.2.4.0_881_1

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  281. 27pYK-10 Development of polarized ^3He neutron spin filters III

    Sakaguchi Y., Kira H., Oku T., Suzuki J., Nakamura M., Arai M., Endo Y., Kakurai K., Takeda M., Wakimoto S., Yamazaki D., Koizumi S., Arimoto Y., Ino T., Shimizu H. M., Kamiyama T., Ohyama K., Hiraka H., Yamada K.

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.2.4 ( 0 ) page: 882   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.2.4.0_882_4

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  282. 27aSG-6 Project of search for new intermediate-range interactions via neutron scattering at J-PARC BL05 beam line

    Shima T., Shimizu H. M., Ino T., Mishima K., Taketani K., Yoshioka M., Mutoh S., Funahashi H., Kitaguchi M., Hino M., Seki Y., Hirota K., Ohtake Y., Sakai K., Suzuki J., Oku T., Shinohara T., Otono H., Yamashita S., Suzuki Y., Sanuki T., NOP collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.1.1 ( 0 ) page: 25   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_4

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  283. 27aSG-3 Experiments for focusing pulsed very cold neutron beam by modulated permanent magnet sextupole lens

    Yamada M., Iwashita Y., Ichikawa M., Sugimoto T., Tongu H., Fujisawa H., Shimizu H. M., Ino T., Mishima K., Taketani K., Yoshioka T., Mutou S., Oku T., Suzuki J., Hirota K., Seki Y., Kawasaki S., Kamiya Y., Otono H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.1.1 ( 0 ) page: 25   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_3

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  284. 27aSE-14 Observation Experiment of Quantum States of Ultra-Cold Neutrons in the Gravity at ILL

    Ichikawa Go, Kawasaki Shinsuke, Komamiya Sachio, Kamiya Yoshio, Sanuki Tomoyuki, Shimizu Hirohiko M., Hino Masahiro, Kitaguchi Masaaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 64.1.1 ( 0 ) page: 25   2009

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_2

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  285. J-PARC UCN Taskforce

    清水 裕彦, 山下 了

    Summary of the J-PARC UCN Taskforce E-Print ArXiv0907.0515     2009

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  286. Fundamental science for neutrons

    Shimizu H.

    International Journal of Phytoremediation   Vol. 19 ( 4 ) page: 43 - 44   2009

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    Publisher:International Journal of Phytoremediation  

    A pulsed cold neutron beam-line “Neutron Optics and Physics (NOP)” for the study of neutron optics and fundamental physics is being constructed at the beam port BL05 of the Materials and Life Science Facility of the J-PARC [1]. © 2009, Taylor & Francis Group, LLC.

    DOI: 10.1080/10506890903405365

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  287. Terahertz imaging with a two-dimensional array detector based on superconducting tunnel junctions

    Ariyoshi S., Otani C., Dobroiu A., Sato H., Taino T., Matsuo H., Shimizu H.M.

    33rd International Conference on Infrared and Millimeter Waves and the 16th International Conference on Terahertz Electronics, 2008, IRMMW-THz 2008     2008.12

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    Publisher:33rd International Conference on Infrared and Millimeter Waves and the 16th International Conference on Terahertz Electronics, 2008, IRMMW-THz 2008  

    We demonstrated terahertz imaging using a two-dimensional array detector with 5x5 elements based on superconducting tunnel junctions. Real-time 25-pixel imaging at 0.65 THz was successfully performed. The array detector also allowed the shortening of the total acquisition time for larger images, made up of pixel blocks. ©IEEE.

    DOI: 10.1109/ICIMW.2008.4665736

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  288. 2D elemental analysis approach in focused neutron beam induced prompt gamma-ray analysis at JAEA

    Segawa M., Matsue H., Sekiya Y., Yamada S., Shinohara T., Oku T., Sasao H., Suzuki J., Shimizu H.M.

    Journal of Radioanalytical and Nuclear Chemistry   Vol. 278 ( 3 ) page: 647 - 651   2008.12

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    Publisher:Journal of Radioanalytical and Nuclear Chemistry  

    We have constructed a new system which could analyze a position distribution of several elements in a sample with 2 dimensional prompt γ-ray analysis (2D PGA) system using focused neutron beam at JAEA. We aimed that the system could analyze local information in a sample with a good signal γ-ray from interested elements to noise of background γ-ray ratio. As a result, this system could determine the position resolution and spatial resolution within 1 mm. © 2008 Springer Science+Business Media, LLC.

    DOI: 10.1007/s10967-008-1402-3

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  289. Strong variable permanent multipole magnets

    Iwashita, Y; Ichikawa, M; Tajima, Y; Nakamura, S; Kumada, M; Spencer, CM; Tauchi, T; Kuroda, S; Okugi, T; Ino, T; Muto, S; Shimizu, HM

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 18 ( 2 ) page: 957 - 960   2008.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    Three super strong permanent multipole magnets have been made: a fixed strength quadrupole, a variable quadrupole and a variable sextupole. The inner and outer diameters of the first 100 mm-length quadrupole are 14 mm and 100 mm, respectively. This fixed strength quad has an integrated gradient of 28.5 T; where the gradient at the center is more than 2.9 T/cm. The second, variable, quadrupole has an integrated strength of 38 T with 15 mm inner diameter and 230 mm length at the maximum: there are sixteen positions in its variable strength with about a 2 T even step width. The sextupole model is intended to change its strength at 25 Hz. One application of a variable quadrupole magnet is a final doublet quadrupole for an e+e- linear collider. Permanent magnet sextupoles are useful for focusing of cold neutrons, which are a very useful probe for material research. Strong octupoles for beam tail folding in the final focus beamline of a linear collider will also be possible with permanent magnets. These high order multipoles made from permanent magnets can achieve higher strengths, for a given bore radius, than superconducting ones. Design works are presented starting from brief review. © 2008 IEEE.

    DOI: 10.1109/TASC.2008.921302

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  290. Development of terahertz-wave detector array based on superconducting tunnel junctions and its imaging applications

    ARIYOSHI Seiichiro, OTANI Chiko, DOBROIU Adrian, SATO Hiromi, TAINO Tohru, MATSUO Hiroshi, SHIMIZU Hirohiko

      Vol. 78   page: 62   2008.5

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  291. Application of a neutron-polarizing device based on a quadrupole magnet to a focusing SANS instrument with a magnetic neutron lens

    Oku, T; Shinohara, T; Kikuchi, T; Oba, Y; Iwase, H; Koizumi, S; Suzuki, J; Shimizu, HM

    MEASUREMENT SCIENCE AND TECHNOLOGY   Vol. 19 ( 3 )   2008.3

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    Publisher:Measurement Science and Technology  

    A magnetic neutron lens based on a sextupole magnet is considered an ideal neutron-focusing device for focusing-geometry small-angle neutron scattering (FSANS) instruments using polarized neutrons. However, the magnetic neutron lens functions both as focusing and defocusing lens for positive and negative polarity neutrons, respectively. Negative polarity neutrons are defocused by the lens and spread over the detector of the instrument, resulting in an increase of the background level. Therefore, a neutron-polarizing device with a very high polarizing efficiency P ≳ 0.99 is required to be employed together with the magnetic neutron lens. A neutron-polarizing device based on a quadrupole magnet has a very high polarizing efficiency P ≳ 0.99, which is sufficient for the application to the FSANS instrument. In this study, we installed the quadrupole magnet in the FSANS instrument SANS-J-II and investigated its performance with respect to the conventional magnetic super-mirror polarizers of the FSANS instrument. © 2008 IOP Publishing Ltd.

    DOI: 10.1088/0957-0233/19/3/034011

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  292. Variable permanent magnet sextupole lens for focusing of pulsed cold neutrons

    Iwashita, Y; Tajima, Y; Ichikawa, M; Nakamura, S; Ino, T; Muto, S; Shimizu, HM

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 586 ( 1 ) page: 73 - 76   2008.2

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    A Variable Permanent Magnet Sextupole (VPMS) lens that can focus pulsed slow neutrons is under development. It is based on the extended Halbach configuration to generate stronger magnetic field. In order to adjust the strength, the magnet is divided into two nested rings, where the inner ring is fixed and the outer ring can be rotated. This device will focus cold neutrons with wavelength of a few to several Angstroms at about 10 m focal length. We fabricated a half-scale model to measure the strength and the torque as functions of the rotor angle. Because the torque is measured as high as more than 30 N m, a mechanism to rotate the rotor is carefully designed. After installation of such a mechanism, a motor will drive the rotor and the temperature rise caused from eddy current loss will be measured. Detailed development of the system will be presented. © 2007 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2007.11.058

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  293. The JEM-EUSO project: Observing extremely high energy cosmic rays and neutrinos from the international space station

    Ebisuzaki, T; Uehara, Y; Ohmori, H; Kawai, K; Kawasaki, Y; Sato, M; Takizawa, Y; Bertaina, ME; Kajino, F; Sawabe, T; Inoue, K; Sasaki, A; Sakata, M; Yamamoto, Y; Nagano, M; Inoue, N; Shibata, T; Sakaki, N; Uchihori, Y; Takahashi, Y; Shimizu, H; Arai, Y; Kurihara, Y; Fujimoto, H; Yoshida, S; Mizumoto, Y; Inoue, S; Asano, K; Sugiyama, T; Watanabe, J; Ikeda, H; Suzuki, M; Imamura, T; Yano, H; Murakami, T; Yonetoku, D; Itow, Y; Taguchi, M; Nagata, M; Nagataki, S; Abe, S; Tajima, T; Adams, JH; Mitchell, S; Christl, MJ; Watts, J; English, A; Takahashi, Y; Pitalo, K; Hadaway, J; Geary, J; Readon, P; Crawford, H; Pennypacker, C; Arisaka, K; Cline, D; Gorodetsky, P; Salin, P; Patzark, T; Maurissen, A; Valentin, M

    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS   Vol. 175 ( SUPPL.: COMPLETE ) page: 237 - 240   2008.1

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    Publisher:Nuclear Physics B - Proceedings Supplements  

    The motivations, characteristics and potential performance of the JEM-EUSO project are briefly discussed. © 2007 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nuclphysbps.2007.11.005

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  294. Neutron Optics and Physics Beamline (J-PARC BL05)

    Shimizu Hirohiko M.

    hamon   Vol. 18 ( 3 ) page: 151 - 154   2008

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    Publisher:The Japanese Society for Neutron Science  

    A pulsed cold neutron beam for the study of neutron optics and fundamental physics (NOP) is under construction as the BL05 of the spallation neutron source of the J-PARC. The NOP beamline has three beam branches, which provide the highly-polarized beam, high intensity beam and low divergence beam for the neutron decay experiment, the neutron scattering experiment and the neutron interferometry experiment, respectively. We overview the physics to be studied at the NOP beamline at its beginning stage.

    DOI: 10.5611/hamon.18.151

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  295. Development of MSGC for neutron application with micron-order blasting technology

    Fujita Kaoru, Takahashi Hiroyuki, Ino Takashi, Shimizu Hirohiko, Kishimoto Shunji, Furusaka Michihiro, Oku Takayuki, Suzuki Jun-ichi

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   Vol. 2008f ( 0 ) page: 131 - 131   2008

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    Language:Japanese   Publisher:Atomic Energy Society of Japan  

    DOI: 10.11561/aesj.2008f.0.131.0

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  296. Terahertz Imaging with a Two-dimensional Array Detector Based on Superconducting Tunnel Junctions

    Ariyoshi, S; Otani, C; Dobroiu, A; Sato, H; Taino, T; Matsuo, H; Shimizu, HM

    2008 33RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES, VOLS 1 AND 2     page: 618 - 618   2008

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  297. 23aSJ-10 Observation of quantum states of Ultra-Cold Neutrons in the Gravitational Field : Estimation of the Performance of the Detector by Cold Neutrons

    Ichikawa Go, Kawasaki Shinsuke, Komamiya Sachio, Kamiya Yoshio, Sanuki Tomoyuki, Shimizu Hirohiko M., Hino Masahiro, Kitaguchi Masaaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.2.1 ( 0 ) page: 22   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_22_4

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  298. 26pZL-2 Development of Modulating Permanent Magnet Sextupole for Focusing of pulsed cold neutrons

    Yamada Masako, Ichikawa Masahiro, Iwashita Yoshihisa, Tajima Yujiro, Tongu Hiromu, Ino Takashi, Shimizu Hirohiko M, Muto Suguru

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.1.1 ( 0 ) page: 131   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.1.1.0_131_2

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  299. 24pWG-11 Development and application of multiple sextupole magnet for focusing of polychromatic neutron beam

    Suzuki Jun-ichi, Oku Takayuki, Shinohara Takenao, Ohba Yojiro, Kikuchi Takayuki, Shimizu Hirohiko M., Pynn Roger

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.1.4 ( 0 ) page: 931   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.1.4.0_931_2

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  300. 24pWG-10 Developments for 2-3 Dimensional Prompt Gamma-ray Analysis System at JAEA

    Segawa M., Matsue H., Yamada S., Shinohara T., Oku T., Sasao H., Suzuki J., Shimizu H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.1.4 ( 0 ) page: 931   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.1.4.0_931_1

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  301. 23pSM-6 Development of Modulating Permanent Magnet Sextupole for Focusing of pulsed cold neutrons II

    Yamada M., Iwashita Y., Ichikawa M., Sugimoto T., Tongu H., Fujisawa H., Shimizu H.M., Ino T., Mishima K., Taketani K., Yoshioka T., Mutou S., Morishima T., Oku T., Suzuki J., Shinohara T., Sakai K., Sato H., Hirota K., Otake Y., Seki Y., Kawasaki S., Komamiya S., Kamiya Y., Otono H., Yamashita S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.2.1 ( 0 ) page: 24   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_24_2

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  302. 23pSM-5 Development of Very Cold Neutron Interferometer

    Seki Yoshichika

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.2.1 ( 0 ) page: 24   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_24_1

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  303. 23pSM-2 Neutron interferometer at J-PARC

    Kitaguchi Masaaki, Hino Masahiro, Seki Yoshichika, Funahashi Haruhiko, Mishima Kenji, Ino Takashi, Taketani Kaoru, Yoshioka Tamaki, Muto Suguru, Morishima Takahiro, Shimizu Hirohiko M., Shima Tatsushi, Sato Hiromi, Hirota Katsuya, Otake Yoshie, Sakai Kenji, NOP Collaboration

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.2.1 ( 0 ) page: 23   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_23_4

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  304. 23aSJ-9 Observation of quantum states of Ultra-Cold Neutrons in the Gravitational Field : Report on a performance test of pixel detector for Ultra-Cold Neutrons at ILL

    Kawasaki Shinsuke, Ichikawa Go, Komamiya Sachio, Kamiya Yoshio, Sanuki Tomoyuki, Shimizu Hirohiko M., Hino Masahiro, Kitaguchi Masaaki

    Meeting Abstracts of the Physical Society of Japan   Vol. 63.2.1 ( 0 ) page: 22   2008

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_22_3

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  305. Research and Development of Neutron Detectors, Neutron Optical Devices and Data Acquisition at J-PARC

    SOYAMA Kazuhiko, SHIMIZU Hirohiko, OTOMO Toshiya

    Nihon Kessho Gakkaishi   Vol. 50 ( 1 ) page: 66 - 71   2008

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    Language:Japanese   Publisher:The Crystallographic Society of Japan  

    Advanced neutron instrumentations are key to accelerated progress of high intense pulsed neutron research at J-PARC, SNS and ISIS-TS2. Current status of development of scintillating and gaseous neutron detectors, application of neutron reflective and magnetic optics, and soft ware development for large amount data acquisition at J-PARC, are described.

    DOI: 10.5940/jcrsj.50.66

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  306. Development of permanent mangnet sextupole lens for focusing of cold neutrons

    Yamada M., Iwashita Y., Ichikawa M., Tongu H., Shimizu H., Ino T., Muto S.

    EPAC 2008 - Contributions to the Proceedings     page: 2392 - 2394   2008

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    Publisher:EPAC 2008 - Contributions to the Proceedings  

    A modulating permanent magnet sextupole lens that can focus pulsed cold neutrons is under development. The magnet is based on the extended Halbach configuration to generate stronger magnetic field. In order to adjust the strength, the magnet is divided into two co-axial nested rings, where the inner ring is fixed and the outer ring can be rotated. Synchronizing the period of the modulation with that of pulsed neutron beam suppress the chromatic aberration. We have fabricated a half scale model as a prototype and studied the strength, the temperature rise caused by eddy current. We have reduced the temperature rise about half of the former model by making the poles laminated structure. We are considering further improvement of the temperature rise and the system of rotating the outer ring with energy loss minimum. We are also measuring the very-cold neutrons focused by the half scale model.

    Scopus

  307. Terahertz electromagnetic-wave detector using Nb-based superconducting tunnel junction on LiNbO<sub>3</sub> substrate absorber

    Taino, T; Ishii, H; Yoshimura, S; Otani, C; Ariyoshi, S; Myoren, H; Kawase, K; Shibuya, T; Sato, H; Shimizu, HM; Takada, S

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   Vol. 463 ( SUPPL. ) page: 1119 - 1122   2007.10

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    Publisher:Physica C: Superconductivity and its Applications  

    We have been developing terahertz (THz) wave detectors using superconducting tunnel junctions (STJs). The STJs consist of the Nb/Al/AlOx/Al/Nb structure. We fabricated THz-wave detectors on LiNbO3 substrates that have a high absorption coefficient for the frequency range of 1012 Hz. Two kinds of signals were detected when the THz-wave was irradiated from the substrate side. One was an indirect signal related to the generation of phonons. The other was a signal that corresponds to directly generated quasi-particles in the Nb electrode of the STJ. The pulse height of the indirect signal was larger than that of the latter signal. To enlarge the detector area, we designed a STJ that has different areas of the base electrode and top electrode. In this paper, the characteristics of the THz-wave detector area will be discussed. © 2007 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physc.2007.03.500

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  308. Development of neutron interferometer with wide-gapped "bSE"s for precision measurements

    Seki Y., Kitaguchi M., Funahashi H., Taketani K., Hino M., Otake Y., Shimizu H.

    AIP Conference Proceedings   Vol. 915   page: 202 - 205   2007.9

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    Publisher:AIP Conference Proceedings  

    We are developing large-dimensional cold-neutron interferometers with multilayer mirrors in order to investigate small interactions. In particular Jamin type interferometers composed of wide-gapped "BSE"s, which divide the beam completely, can realize the precision measurement of topological Aharonov-Casher effect. We have made a prototype with 200 μm gapped BSEs and confirmed the spatial separation of its two paths at monochromatic cold-neutron beamline MINE2 on JRR-3M reactor in JAEA. © 2007 American Institute of Physics.

    DOI: 10.1063/1.2750763

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  309. Spin-selective neutron optics for neutron fundamental physics

    Shimizu H.

    AIP Conference Proceedings   Vol. 915   page: 197 - 201   2007.9

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    Recent development of magnetic optics has enabled a practical use of the magnetic optics to deliver a highly polarized neutrons with a well-defined phase space. Its application in the neutron decay measurement is discussed. © 2007 American Institute of Physics.

    DOI: 10.1063/1.2750762

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  310. Development of micro pattern gas detectors in the University of Tokyo

    FUJITA Kaoru, TAKAHASHI Hiroyuki, NIKO Hisako, TAKADA Yuka, INO Takashi, SHIMIZU Hirohiko M, KISHIMOTO Shunji, OKU Takayuki, SUZUKI Jun-ichi, FURUSAKA Michihiro, KANAZAWA Masakazu

      Vol. 2007 ( 1 ) page: 1 - 4   2007.9

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  311. CS-7-9 Single Photon Detector using Superconducting Tunnel Junction at 1.5-micron Waveband

    Shiki Shigetomo, Sato Hiromi, Shimizu Hirohiko M.

    Proceedings of the IEICE General Conference   Vol. 2007 ( 2 ) page: "S - 31"-"S-32"   2007.3

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    Language:Japanese   Publisher:The Institute of Electronics, Information and Communication Engineers  

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  312. X-Ray Detection Using Superconducting Tunnel Junction Shaped Normal-Distribution-Function

    TAINO Tohru, NISHIHARA Tomohiro, HOSHINO Koichi, MYOREN Hiroaki, SATO Hiromi, SHIMIZU Hirohiko M., TAKADA Susumu

    IEICE transactions on electronics   Vol. 90 ( 3 ) page: 566 - 569   2007.3

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    Language:English   Publisher:The Institute of Electronics, Information and Communication Engineers  

    A normal-distribution-function-shaped superconducting tunnel junction (NDF-STJ) which consists of Nb/Al-AlO_x/Al/Nb has been fabricated as an X-ray detector. Current-voltage characteristics were measured at 0.4K using three kinds of STJs, which have the dispersion parameters σ of 0.25, 0.45 and 0.75. These STJs showed very low subgap leakage current of about 5nA. By irradiating with 5.9keV X-rays, we obtained the spectrum of these NDF-STJs. They showed good energy resolution with small magnetic fields of below 3mT, which is about one-tenth of those for conventional-shaped STJs.

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  313. Neutron diffraction under 30T pulsed magnetic fields

    Ohoyama, K; Katoh, N; Nojiri, H; Matsuda, YH; Hiraka, H; Ikeda, K; Shimizu, HM

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   Vol. 310 ( 2 ) page: E974 - E976   2007.3

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    Publisher:Journal of Magnetism and Magnetic Materials  

    We develop techniques for neutron diffraction experiments under pulsed high magnetic fields. 30 T pulsed magnetic fields were successfully generated on a neutron spectrometer installed at a reactor. Neutron beam focusing devices and high efficiency neutron detecting system have also been developed. © 2006 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.jmmm.2006.10.958

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  314. Simulation of focusing using a pulsed sextupole electromagnet and comparison with experimental results

    Iwashita Hidenori, Iwasa Hirokatsu, Hiraga Hujio, Kamiyama Takashi, Kiyanagi Yoshiaki, Suzuki Jyunichi, Shinohara Takenao, Oku Takayuki, Simizu Hirohiko

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   Vol. 2007f ( 0 ) page: 182 - 182   2007

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    DOI: 10.11561/aesj.2007f.0.182.0

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  315. Evaluation of position resolution with charge division method by cathode patterning in MSGC

    Fujita Kaoru, Takahashi Hiroyuki, Niko Hisako, Takada Yuka, Ino Takashi, Shimizu Hirohiko, Kishimoto Shunji, Furusaka Michihiro, Kanazawa Masakazu

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   Vol. 2007f ( 0 ) page: 106 - 106   2007

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    DOI: 10.11561/aesj.2007f.0.106.0

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  316. Characteristics of MS-tube as a position sensitive neutron detector

    Fujita Kaoru, Takahashi Hiroyuki, Niko Hisako, Nishi Kosuke, Takada Yuka, Furusaka Michihiro, Ino Takashi, Shimizu Hirohiko, Kishimoto Shunji, Oku Takayuki, Suzuki Jun-ichi, Toyokawa Hidenori, Kanazawa Masakazu

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   Vol. 2007s ( 0 ) page: 72 - 72   2007

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    DOI: 10.11561/aesj.2007s.0.72.0

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  317. Development of neutron interferometer with wide-gapped "BSE"s for precision measurements

    Seki, Y; Kitaguchi, M; Funahashi, H; Taketani, K; Hino, M; Otake, Y; Shimizu, HM

    PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM   Vol. 915   page: 202 - +   2007

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  318. 21pRE-13 Measurement of stopping power variation of thin metallic target for α-ray in strong magnetic field

    Itoh Hiroyuki, Mitsuda Chikaori, Morita Akio, Ichikawa Masahiro, Tajima Yujiro, Shimizu Hirohiko, Yoshimura Koji, Tosaki Mitsuo, Iwashita Yoshihisa

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.2.2 ( 0 ) page: 156   2007

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.62.2.2.0_156_3

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  319. 21aTC-3 Application of a neutron polarizing device based on a quadrupole magnet to a focusing SANS instrument with a magnetic neutron lens.

    Oku T., Shinohara T., Kikuchi T., Oba Y., Iwase H., Koizumi S., Suzuki J., Shimizu H.M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.2.4 ( 0 ) page: 970   2007

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.62.2.4.0_970_3

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  320. 21aTC-2 Development of neutron Fresnel lens

    Ino T., Adachi T., Shinohara T., Shimizu H.M., Hirota K., Muto S.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.2.4 ( 0 ) page: 970   2007

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.62.2.4.0_970_2

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  321. 21aTC-1 Development of magnetic lenses for neutron beam focus and polarization (3)

    Muto S., Ino T., Iwashita Y., Oku T., Kaneko N., Kawai M., Kobayashi Y., Sagehashi H., Shinohara T., Shimizu H.M., Suzuki J., Tahara T., Hirota K., Morishima T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.2.4 ( 0 ) page: 970   2007

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.62.2.4.0_970_1

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  322. 19aXB-9 Development of Curved Supermirrors for Neutron Optical devices

    Ikeda K., Hirota K., Sato H., Ohmori H., Shimizu H. M., Furusaka M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.1.4 ( 0 ) page: 949   2007

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    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_4

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  323. 19aXB-8 Focusing of pulsed polychromatic neutron beam by a compound sextupole magnet

    Suzuki J., Oku T., Shinohara T., Shimizu H. M., Pynn Roger

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.1.4 ( 0 ) page: 949   2007

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    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_3

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  324. 19aXB-7 Neutron beam focusing by a pulsed sextupole electromagnet

    Shinohara T., Iwashita H., Suzuki J., Oku T., Kamiyama T., Iwasa H., Hiraga F., Kiyanagi Y., Sato K., Shimizu H. M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.1.4 ( 0 ) page: 949   2007

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_2

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  325. 19aXB-6 Development of magnetic lenses for neutron beam focus and polarization (2)

    Ino T., Iwashita Y., Oku T., Kaneko N., Kawai M., Kobayashi Y., Sagehashi H., Shinohara T., Shimizu H. M., Suzuki J., Tahara T., Hirota K., Muto S., Morishima T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.1.4 ( 0 ) page: 949   2007

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_1

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  326. 19aXB-5 Development of magnetic lenses for neutron beam focus and polarization (1)

    Ino T., Iwashita Y., Oku T., Kaneko N., Kawai M., Kobayashi Y., Sagehashi H., Shinohara T., Shimizu H. M., Suzuki J., Tahara T., Hirota K., Muto S., Morishima T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.1.4 ( 0 ) page: 948   2007

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    DOI: 10.11316/jpsgaiyo.62.1.4.0_948_4

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  327. 24aZG-2 Mesurement of magnetic field in adjustable Parmanent Magnet Multipole

    Ichikawa Masahiro, Iwashita Yoshihisa, Tajima Yujiro, Tongu Hiromu, Ino Takashi, Shimizu Hirohiko M, Muto Suguru

    Meeting Abstracts of the Physical Society of Japan   Vol. 62.2.1 ( 0 ) page: 133   2007

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    DOI: 10.11316/jpsgaiyo.62.2.1.0_133_2

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  328. Spin-selective neutron optics for neutron fundamental physics

    Shimizu H. M.

    PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM   Vol. 915   page: 197 - 201   2007

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  329. Study on the relation between abnormal brain protein aggregation and neuopathy-abnormal aggregation of 3-repeat-tau by oxidation stress is related to pathogenesis of Alzheimer's disease

    Naito S., Ikeda S., Shimizu H., Mochizuki H., Yasuda T., Mizuno Y., Furusaka M., Suzuki J., Fujiwara S., Wada K.

    Polymer Preprints, Japan   Vol. 55 ( 2 )   2006.12

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    We synthesized 3-repeat tau and 4-repeat tau which are usually expressed in an adult brain and examined successively the conformational changes caused by oxidative stress with a small-angle neutron scattering and a dynamic light scattering. We could clarify that 3-repeat tau was easily oxidized and formed aggregates by an intermolecular SS cross-linking.

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  330. THz imaging with a linear array detector based on superconducting tunnel junctions

    Ariyoshi S., Otani C., Dobroiu A., Matsuo H., Sato H., Taino T., Kawase K., Shimizu H.M.

    IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics     2006.12

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    Publisher:IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics  

    We demonstrated terahertz imaging using a linear array detector with five elements based on superconducting tunnel junctions (STJs). Nondestructive imaging at 0.66 THz was successfully performed for a test metallic pattern and an integrated-circuit card using the STJ linear array, which shortened the total acquisition time. ©2006 IEEE.

    DOI: 10.1109/ICIMW.2006.368603

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  331. Applications of neutron refractive optical devices

    Shimizu H.

    Physica B: Condensed Matter   Vol. 385-386   page: 989 - 994   2006.11

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    Publisher:Physica B: Condensed Matter  

    Refractive optics has relatively large effective apertures compared with reflective optics and they are suitable for two-dimensional beam focusing. There are two types of refractive optics, which are compound refractive optics and magnetic optics. Both of them are applied to extend the accessible q-range in small-angle scattering of cold neutron. We discuss possibilities to apply magnetic optics at pulsed neutron sources. We also discuss the possibility to obtain an extremely high neutron polarization using the spin-selectivity of magnetic optics. © 2006 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2006.05.318

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  332. Simulation study of neutron focusing effect on a pulsed sextupole magnetic lens using PHITS code

    Mitsutake, I; Kiyanagi, Y; Kamiyama, T; Nitta, K; Suzuki, J; Oku, T; Shimizu, HM

    PHYSICA B-CONDENSED MATTER   Vol. 385-86   page: 1229 - 1231   2006.11

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    Publisher:Physica B: Condensed Matter  

    We have performed various simulation calculations for a pulsed sextupole magnetic lens to look for the best condition of focusing experiments, assuming conditions of the pulse magnetic lens now under construction. Here, we placed a slit between the pulsed neutron moderator and the neutron lens, in order to see the focusing effect clearly. For the simulation, we used PHITS code to know influences of the position of the slit on the intensity of focused neutron beam, the focal point, and the broadening of the focal point. Increase of the distance of the slit from the source resulted in the decrease of the peak intensity of neutron beam at the focal point. Full-width at half-maximum of the neutron distribution along the incident beam direction around the focal point, broadened with increasing the distance, and the focal distance also became longer. The intensity ratios defined by (intensity with magnetic field)/(intensity without magnetic field) also increased with decreasing the distance. Therefore, it is better to set a slit near the moderator. © 2006.

    DOI: 10.1016/j.physb.2006.05.417

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  333. Small-angle characterization of multimetric variants related to Parkinson's disease of ubiquitin carboxyl-terminal hydrolase L1 in water by small-angle neutron scattering

    Naito S., Mochizuki H., Yasuda T., Mizuno Y., Furusaka M., Ikeda S., Shimizu H.M., Adachi T., Suzuki J., Fujiwara S., Okada Y., Mshikawa K., Aoki S., Wada K.

    Polymer Preprints, Japan   Vol. 55 ( 1 )   2006.10

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    UCH-L1 is a neuro-specific multiple functional enzyme. To examine the relationship between PD and the configuration of UCH-L1 variants [wild-type, I93M (linked to familial PD), and SI8Y (linked to reduced risk of PD)], we examined their structures in dueterized water directly using small-angle neutron scattering. We demonstrate that these were all self-assembled dimers. The wild-type was a rotating ellipsoidal dimer although the crystal structure predicted from the UCH-L3 was globular. The globular form of the monomeric component deformed by the I93M mutation. Conversely, the SI8Y polymorphism promoted the globularity. The morphological structures of UCH-L1 variants and PD exhibit good pathological correlation.

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  334. Design study of superconducting sextupole magnet using HTS coated conductor for neutron-focusing device

    Tosaka, T; Koyanagi, K; Ono, M; Kuriyama, T; Watanabe, I; Tsuchiya, K; Suzuki, J; Adachi, T; Shimizu, HM

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   Vol. 445 ( 1-2 ) page: 1095 - 1098   2006.10

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    Publisher:Physica C: Superconductivity and its Applications  

    We performed a design study of sextupole magnet using high temperature superconducting (HTS) wires. The sextupole magnet is used as a focusing lens for neutron-focusing devices. A neutron-focusing device is desired to have a large aperture and a high magnetic field gradient of G, where G = 2B/r2, B is the magnetic field and r is a distance from the sextupole magnet axis. Superconducting magnets offer promising prospects to meet the demands of a neutron-focusing device. Recently NbTi coils of low temperature superconducting (LTS) have been developed for a sextupole magnet with a 46.8 mm aperture. The maximum magnetic field gradient G of this magnet is 9480 T/m2 at 4.2 K and 12,800 T/m2at 1.8 K. On the other hand, rapid progress on second generation HTS wire has been made in increasing the performance of critical current and in demonstrating a long length. The second generation HTS wire is referred to as coated conductor. It consists of tape-shaped base upon which a thin coating of superconductor, usually YBCO, is deposited or grown. This paper describes a design study of sextupole magnet using coated conductors. © 2006.

    DOI: 10.1016/j.physc.2006.05.043

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  335. Performance of a multi-anode photomultiplier employing a weak electrostatic focusing system (Hamamatsu R8900 series)

    Kawasaki, Y; Bertaina, ME; Sakaki, N; Shimizu, HM; Inoue, N; Hasegawa, S; Ohtsu, I; Adachi, T; Ebisuzaki, T; Hirota, K; Ikeda, K; Kajino, F; Morishima, T; Nagano, M; Sato, M; Sawabe, T; Shibata, T; Shinohara, T; Takeda, M; Takizawa, Y; Uchihori, Y; Wada, Y

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 564 ( 1 ) page: 378 - 394   2006.8

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    We have developed and tested a new type of multi-anode photomultiplier: Hamamatsu R8900-03 series. The main feature of the R8900-03 series is a highly sensitive surface: ∼ 83 % of the physical area. In this paper we report on the results of measurements we performed to check several parameters of this new type of photomultiplier. R8900-03 photomultipliers are devices suitable for experiments where large collection area and uniform detection efficiency are essential characteristics. © 2006 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2006.03.010

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  336. Low Energy Neutron Optics

    SHIMIZU Hirohiko M.

    Journal of the Particle Accelerator Society of Japan   Vol. 3 ( 2 ) page: 128 - 136   2006.7

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    <p>Neutron is a unique probe to study materials according to its low capability to excite chemical bondings with a relatively high sensitivity to light elements. However, its low luminosity has limited the application fields. The recent innovations in neutron optics have been activating enhanced analyzing capabilities of neutron scattering experiments. We describe the current status of advanced neutron optics and possible extensions of their applications.</p>

    DOI: 10.50868/pasj.3.2_128

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  337. Nb<sub>3</sub>Sn sextupole magnet for neutron beam focusing

    Okamoto, K; Nakamura, K; Seki, Y; Ohno, M; Takao, T; Mitsuda, C; Ohuchi, N; Shintomi, T; Tsuchiya, K; Adachi, T; Shimizu, H; Oku, T; Suzuki, J; Kimura, S; Hanai, S; Urata, M; Watanabe, I

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 16 ( 2 ) page: 362 - 365   2006.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    In order to obtain a high-intensity neutron beam for neutron scattering experiments, strong sextupole magnets with large apertures are useful as a focusing element. We have started the development of a Nb3Sn sextupole magnet for this purpose. The design field strength of the sextupole is 12780 T/m2 and the aperture of the coil is 46 mm in diameter. As a first step of the development, three model coils have been made in order to learn about Nb3Sn technology and to evaluate the fabrication techniques. Single-pole tests of these coils have been performed to assess the conductor stability and training behavior of the Nb3Sn coils. This paper describes the design of the magnet, the fabrication of the model coils and the results of single-pole tests. © 2006 IEEE.

    DOI: 10.1109/TASC.2006.873329

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  338. Terahertz imaging with a direct detector based on superconducting tunnel junctions

    Ariyoshi, S; Otani, C; Dobroiu, A; Sato, H; Kawase, K; Shimizu, HM; Taino, T; Matsuo, H

    APPLIED PHYSICS LETTERS   Vol. 88 ( 20 )   2006.5

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    Publisher:Applied Physics Letters  

    We demonstrated terahertz imaging using a direct detector based on niobium superconducting tunnel junctions (STJs). The detector is composed of linearly distributed junctions placed on a superconducting microstrip line and is integrated on two wings of a log-periodic antenna. We succeeded nondestructive imaging for an integrated-circuit card and dry material using the detector around its sensitivity peak (∼0.66 THz). The dynamic range was measured to be higher than 4× 107 (76 dB). Thus, the STJ detector is applicable to high-sensitivity and high-speed terahertz imaging for various nondestructive inspection applications. © 2006 American Institute of Physics.

    DOI: 10.1063/1.2204842

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  339. A broadband terahertz detector using a superconducting tunnel junction

    Taino, T; Nakano, R; Yoshimura, S; Myoren, H; Takada, S; Otani, C; Ariyoshi, S; Shibuya, T; Kawase, K; Sato, H; Shimizu, HM

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 559 ( 2 ) page: 751 - 753   2006.4

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    We have proposed and demonstrated a new broadband terahertz (THz) wave detector using a superconducting tunnel junction (STJ) fabricated on LiNbO3, LiTaO3, and sapphire substrates. These substrates have relatively high absorption efficiency for THz waves, and we have expected that incident THz waves from substrate side are absorbed and that generate many THz phonons which break Cooper pairs in the base superconductor electrode of the STJ. Using a frequency-tunable THz pulse source in 1-2 THz, we have confirmed that the current signal corresponding to the THz input was observed. In addition, we found two current components with different timescales for the first time. We interpret that the slow component corresponds to phonons absorbed with the substrate and that the fast one corresponds to the directly absorbed photons with the superconductor electrode of the STJs. © 2006 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2005.12.207

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  340. Detection of α particles with a superconducting series-junction detector

    Kurakado, M; Kirk, EC; Sato, H; Jerjen, I; Shiki, S; Shimizu, HM; Zehnder, A; Taniguchi, K

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 559 ( 2 ) page: 480 - 482   2006.4

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    Alpha particles were measured with a superconducting series-junction detector. The effective area and thickness of the detector are given by a circle of 0.5 mm in diameter and 500 μm Al2O3, respectively. The risetime of the charge-sensitive preamplifiers, i.e. charge collection time of the detector, was about 5 μs. An energy resolution of 0.35% was obtained for 5.5 MeV α particles. © 2006 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2005.12.080

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  341. Development of a low energy particle detector using a superconducting transition edge sensor

    Ohno, M; Sato, H; Ikeda, T; Shimizu, HM

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 559 ( 2 ) page: 573 - 575   2006.4

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    It is possible for a superconductive transition edge sensor (TES) to detect directly the low energy proton generated in the neutron beta decay. The precision measurement of the proton spectrum is important to test the prediction of the Standard Model of electroweak interaction. Therefore, we are developing a TES microcalorimeter with a large effective area for a proton detector. Our first TES device consists of four-pixels using a Ti/Au bilayer. All pixels are parallel biased and X-rays from a 55Fe source are detected successfully. © 2005 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2005.12.058

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  342. Refraction as a means of encoding wavelength for neutron reflectometry

    Cubitt, R; Shimizu, HM; Ikeda, K; Torikai, N

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 558 ( 2 ) page: 547 - 550   2006.3

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    Neutron reflectometry is a well-established technique used to analyze the structure of interfaces as a function of depth normal to the surface. On a continuous source of neutrons, such as a reactor, the measurement can be done at a fixed incident angle and a white beam with the neutron wavelength encoded by the use of choppers to measure the time of flight. Although providing a certain flexibility in wavelength resolution, choppers have low transmission. This paper explores the possibility of using refraction to encode neutron wavelength opening the possibility of reactor sources to use almost the full-time-averaged neutron flux available and hence, increase the performance of neutron reflectometers by orders of magnitude. © 2005 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2005.12.045

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  343. Characterization of multimetric variants of ubiquitin carboxyl-terminal hydrolase L1 in water by small-angle neutron scattering

    Naito, S; Mochizuki, H; Yasuda, T; Mizuno, Y; Furusaka, M; Ikeda, S; Adachi, T; Shimizu, HM; Suzuki, J; Fujiwara, S; Okada, T; Nishikawa, K; Aoki, S; Wada, K

    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS   Vol. 339 ( 2 ) page: 717 - 725   2006.1

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    Publisher:Biochemical and Biophysical Research Communications  

    Here, we illustrated that the morphological structures of ubiquitin carboxyl-terminal hydrolase L1 (UCH-L1) variants and Parkinson's disease (PD) exhibit good pathological correlation by a small-angle neutron scattering (SANS). UCH-L1 is a neuro-specific multiple functional enzyme, deubiquitinating, ubiquityl ligase, and also involved in stabilization of mono-ubiquitin. To examine the relationship between multiple functions of UCH-L1 and the configuration of its variants [wild-type, I93M (linked to familial Parkinson's disease), and S18Y (linked to reduced risk of Parkinson's disease)], in this report, we proposed that these were all self-assembled dimers by an application of a rotating ellipsoidal model; the configurations of these dimers were quite different. The wild-type was a rotating ellipsoidal. The globular form of the monomeric component deformed by the I93M mutation. Conversely, the S18Y polymorphism promoted the globularity. Thus, the multiple functional balance is closely linked to the intermolecular interactions between the UCH-L1 monomer and the final dimeric configuration. © 2005 Elsevier Inc. All rights reserved.

    DOI: 10.1016/j.bbrc.2005.11.066

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    PubMed

  344. development of gadorinium system thin scintillator(3)

    YAMAGUCHI Toru, HARUNA Jun, KANEKO Junichi, SUSA Kenzou, MIURA Seiji, YAGI Yasuhiro, KAWAMURA Souhan, OKU Takayuki, FUJITA Fumiyuki, HOMMA Akira, ISHIBASHI Hiroyuki, SAWAMURA Teruko, FURUSAKA Michihiro, SHIMIZU Hirohiko, KIYANAGI Yoshiaki

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   Vol. 2006s ( 0 ) page: 64 - 64   2006

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    Publisher:Atomic Energy Society of Japan  

    DOI: 10.11561/aesj.2006s.0.64.0

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  345. development of gadorinium system thin scintillator (2)

    TSUCHIDA Syouhei, HARUNA Jun, KANEKO Junichi, SUSA Kenzou, MIURA Seiji, OKU Takayuki, FUJITA Fumiyuki, HOMMA Akira, SAWAMURA Teruko, FURUSAKA Michihiro, SHIMIZU Hirohiko, KIYANAGI Yoshiaki

    Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   Vol. 2006s ( 0 ) page: 65 - 65   2006

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    DOI: 10.11561/aesj.2006s.0.65.0

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  346. 20aSF-4 Highly polarized neutron beam produced by a quadrupole magnet and its application to fundamental physics

    Yamada S., Oku T., Mishima K., Sato H., Hirota K., Morishima T., Ohno M., Shinohara T., Suzuki J., Shimizu H.M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 61.2.1 ( 0 ) page: 29   2006

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.61.2.1.0_29_2

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  347. 30aWD-5 Development of low energy particle detector using superconducting transition edge sensor (3)

    Ohno M., Sato H., Morishima T., Mishima K., Ikeda T., Yamada S., Shimizu H.M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 61.1.1 ( 0 ) page: 73   2006

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.61.1.1.0_73_1

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  348. 30pXD-7 Development of Neutron Focusing Devices using Supermirrors with a Parabolic Surface for Thermal Neutrons

    Ikeda K., Shinohara T., Hirota K., Sato H., Shimizu H.M., Hino M., Oku T., Suzuki J., Soyama K., Ohoyama K., Hiraka H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 61.1.4 ( 0 ) page: 965   2006

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.61.1.4.0_965_3

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  349. 30pXD-6 Jamin type cold-neutron interferometer for precise measurement of Aharonov-Casher effect

    Seki Y., Funahashi H., Taketani K., Hino M., Kitaguchi M., Otake Y., Shimizu H.M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 61.1.4 ( 0 ) page: 965   2006

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.61.1.4.0_965_2

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  350. 30pXD-5 Development of a neutron polarizer based on a quadrupole magnet

    Oku T., Yamada S., Suzuki J., Mishima K., Shinohara T., Ikeda K., Hirota K., Sato H., Shimizu H.M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 61.1.4 ( 0 ) page: 965   2006

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    Language:Japanese   Publisher:The Physical Society of Japan  

    DOI: 10.11316/jpsgaiyo.61.1.4.0_965_1

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  351. Development of Mach-Zehnder interferometer and "Coherent beam steering" technique for cold neutrons

    Taketani K., Funahashi H., Seki Y., Hino M., Kitaguchi M., Maruyama R., Otake Y., Shimizu H.M.

    Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005     page: 282 - 285   2006

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    Publisher:Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005  

    We are developing multilayer interferometer of Mach-Zehnder type for cold neutrons. To fulfill severe requirements for aligning the four mirrors, we utilize six solid-etalon-plates and a high precision flat base plate. New devices making use of magnetic birefringence have been developed and demonstrated to be useful for fine adjustment of superposition between the two paths labeled with neutron spin.

    DOI: 10.1142/9789812773210_0060

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  352. Polyimide Buffer Layer for STJ Photon Detector

    Taino T., Yoshida M., Narisawa M., Myoren H., Kikuchi K., Nakagawa H., Aoyagi M., Sato H., Shimizu H. M., Takada S.

    7TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'05)   Vol. 43   page: 1319 - 1321   2006

  353. THz imaging with a linear array detector based on superconducting tunnel junctions

    Ariyoshi, S; Otani, C; Dobroiu, A; Matsuo, H; Sato, H; Taino, T; Kawase, K; Shimizu, HM

    CONFERENCE DIGEST OF THE 2006 JOINT 31ST INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 14TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS     page: 395 - 395   2006

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  354. Upgrade of the 32 m small-angle neutron scattering instrument SANS-U

    Okabe, S; Nagao, M; Karino, T; Watanabe, S; Adachi, T; Shimizu, H; Shibayama, M

    JOURNAL OF APPLIED CRYSTALLOGRAPHY   Vol. 38 ( 6 ) page: 1035 - 1037   2005.12

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    Publisher:Journal of Applied Crystallography  

    The small-angle neutron scattering instrument, SANS-U, owned by the Institute for Solid State Physics, The University of Tokyo, has been upgraded. The SANS-U is a 32 m SANS instrument installed in 1991 at the guide hall of the JRR-3M research reactor of the Japan Atomic Energy Research Institute, and has been serving for inter-university cooperative research use since 1993. The major upgrades include (i) replacement of the two-dimensional area detector by a multi-wire type position-sensitive proportional counter, (ii) renewal of the operating system from a VAX and sequencers to an integrated PXI system controlled by LabVIEW-RT software, (iii) a focusing collimation system, and (iv) a variety of accessory equipment. These upgrades provide a wide dynamic range of neutron counting, user-friendly operation and real-time circular averaging of two-dimensional data. © 2005 International Union of Crystallography - all rights reserved.

    DOI: 10.1107/S0021889805029201

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  355. Detection of direct and indirect terahertz waves using a Nb-based superconducting tunnel junction

    Otani C., Nakano R., Taino T., Shibuya T., Ariyoshi S., Myoren H., Sato H., Shimizu H.M., Takada S., Kawase K.

    The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005   Vol. 1   page: 263 - 264   2005.12

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    Publisher:The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005  

    We are developing a broadband THz detectors using Nb-based superconducting tunnel junctions. We found two components in a current signal for 1-2 THz pulse input. From the comparison of results obtained for the signals, the frequency response for the different size of STJs and the STJs fabricated on different substrate materials, we demonstrate that they correspond to photons absorbed with the superconductor electrode (refered as 'direct' component) and phonons generated by photons absorbed with the substrate (refered as 'phonon-mediated' component). © 2005 IEEE.

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  356. Small-angle neutron scattering study on the relation between abnormal brain protein structure and neuropathy; mechanism of the abnormal aggregation of microtubule-associated tau

    Naito S., Mochizuki H., Yasuda T., Mizuno Y., Furusaka M., Ikeda S., Adachi T., Shimizu H.M., Suzuki J., Fujiwara S.

    Polymer Preprints, Japan   Vol. 54 ( 2 ) page: 4881 - 4882   2005.12

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    Tauopacy is the abnormal aggregation of tau which is one of the microtubule-associated proteins often observed in Alzheimer's disease and Parkinson's disease brain. Such an abnormal protein aggregation in cells causes cellular degeneration and death, and finally ends up with grave disorders. We synthesized human recombinant human tau and evaluated the structure in water by dynamic light scattering (DLS) and small-angle neutron scattering (SANS). SANS showed tau (46Kda,consisting of 448a.a.) behaved in water as if it were originally and highly polymerized rod-like fibers although the SDS-page showed tau was refined to a single molecule. After we confirmed tau heated with reducing agent showed a single dispersion by DLS, we observed the structure by SANS equipped with 40 fresnel lenses at a lower concentration, C*. The radius of gyration of the tau cluster was estimated to be 272 Å from the Gunier analysis on the SANS profile in the lower q ranges. We clarified that normal tau proteins form a huge globule cluster in water by self-assembly, furthermore, they form a fibril by intermolecular cystine cross-linking under oxidative environment.

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  357. Development of superconducting sextupole magnet using HTS coated conductor for neutron-focusing device

    KOYANAGI Kei, TOSAKA Taizo, ONO Michitaka, KURIYAMA Toru, WATANABE Ikuo, TSUCHIYA Kiyosumi, SUZUKI Jun-ichi, ADACHI Tomohiro, SHIMIZU M. Hirohiko

      Vol. 73   page: 246   2005.11

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  358. The focal surface of the EUSO telescope

    Kawasaki, Y; Bertaina, M; Ebisuzaki, T; Kajino, F; Miyazaki, Y; Nagano, M; Sakaki, N; Sato, M; Shimizu, HM; Takizawa, Y; Ameri, M; Catalano, O; Cuneo, S; Fontanelli, F; Gracco, V; Musico, P; Pallavicini, M; Petrolini, A; Pratolongo, R; Sannino, M; Bleurvacq, N; Cadoux, F; Chapron, C; Gorodetzky, P; Nedelec, P; Patzak, T; Plagnol, E; Takahashi, Y

    INTERNATIONAL JOURNAL OF MODERN PHYSICS A   Vol. 20 ( 29 ) page: 6890 - 6893   2005.11

  359. Global measurement of lightning-associated transient luminous events (TLEs) from space

    Sato, M; Ebisuzaki, T; Takizawa, Y; Kawasaki, Y; Sakaki, N; Bertaina, M; Shimizu, HM; Takahashi, Y; Adachi, T

    INTERNATIONAL JOURNAL OF MODERN PHYSICS A   Vol. 20 ( 29 ) page: 6903 - 6905   2005.11

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    In this study we present possibility of continuous measurements of lightning- associated transient luminous events (sprites, elves and blue jets) from the ISS altitude using the EUSO telescope. From global lightning data we estimated possible detection rates of lightning and TLEs. We also estimated photon numbers and optical spectra of TLEs in the near-ultraviolet region (300-400 nm) where the fluorescence emission caused by CRs exists. These results imply that EUSO has enough capabilities to monitor not only super-GZK CRs but also global lightning and TLEs. © World Scientific Publishing Company.

    DOI: 10.1142/S0217751X05030454

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  360. Photomultiplier development and wavelength shifter manufacturing to increase the detection of faint fluorescence signals

    Bertaina, M; Ebisuzaki, T; Hirota, K; Kawasaki, Y; Sakaki, N; Sato, M; Shimizu, HM; Shinohara, T; Takizawa, Y

    INTERNATIONAL JOURNAL OF MODERN PHYSICS A   Vol. 20 ( 29 ) page: 6872 - 6874   2005.11

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    Publisher:International Journal of Modern Physics A  

    RIKEN has developed in collaboration with Hamamatsu a new type of Multi Anode Photomultiplier (MAPMT), R8900 series, with a large sensitive area of ∼83% of the physical surface. The performance of R8900 is reviewed in the following. RIKEN has also manufactured a new type of wavelength shifter (w.s.) film to shift near-UV light (330 ÷ 400 nm) to visible one. This film uses POPOP as a shifter and EPO-TEX as a substrate. The quantum efficiency of the film reaches ∼80%. © World Scientific Publishing Company.

    DOI: 10.1142/S0217751X05030351

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  361. Development of terahertz wave detector using superconducting tunnel junction

    Taino, T; Hoshino, K; Nakano, R; Otani, C; Myoren, H; Kawase, K; Shibuya, T; Sato, H; Shimizu, HM; Takada, S

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   Vol. 426 ( II ) page: 1731 - 1735   2005.10

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    Publisher:Physica C: Superconductivity and its Applications  

    We have developed a new terahertz (THz) wave detector using an Nb-based superconducting tunnel junction (STJ). The STJ consists of a Nb/Al/AlO x/Al/Nb structure on a single-crystal LiNbO3 substrate. Using LiNbO3 as a substrate, an irradiating THz wave is converted to phonons in LiNbO3, which has a relatively high absorption coefficient. The phonons propagating in the substrate reach the Nb base electrode of the STJ and break Cooper pairs. As a result, the THz wave can be detected as tunneling current signals in the STJ. THz waves from a widely tunable THz-wave parametric oscillator (TPO) were irradiated on to the STJ, which acted as a THz wave detector. The STJs were cooled to an operating temperature of 0.4 K using a 3He cryostat. We have observed STJ signals related to THz wave irradiations. In this paper, fabrication processes and characteristics of THz wave detectors using STJs are also discussed. © 2005 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physc.2005.02.137

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  362. Proton Polarization with Naphthalene Crystals by Integrated Solid Effect on Photoexcited Triplet State

    Iinuma Masataka, Takahashi Yoshiro, Shaké Ippei, Oda Masahiro, Shimizu Hirohiko M., Masaike Akira, Yabuzaki Tsutomu

    Journal of the Physical Society of Japan   Vol. 74 ( 9 ) page: 2622 - 2630   2005.9

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    Language:English   Publisher:THE PHYSICAL SOCIETY OF JAPAN  

    We have carried out detailed systematic studies of relaxation effects, which contribute to a significant improvement in proton polarization in a single crystal of naphthalene doped with pentacene. The experiments have been performed in a magnetic field of 3 kG at room temperature or at 77 K and with a pulsed dye laser or a pulsed N<SUB>2</SUB> laser. We have found that a relaxation rate in the presence of irradiation with visible light (λ=595 nm) is much smaller than that with ultraviolet light (λ=337 nm) at room temperature, although the absorption rate of visible light is much larger than that of ultraviolet light. By cooling the crystal, the slow motion of the naphthalene molecules, which is a dominant relaxation process, can be suppressed. Surprisingly, we have found that the relaxation time at 77 K in the presence of the dye laser becomes long, but still depends on the laser power. Our investigation has also indicated that both the longer relaxation time and the irradiation with the dye laser lead to a great improvement in the polarization of protons in the bulk of a crystal from 0.5% at room temperature to 32% at 77 K.

    DOI: 10.1143/JPSJ.74.2622

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  363. Proton polarization with <i>p</i>-terphenyl crystal by integrated solid effect on photoexcited triplet state

    Iinuma, M; Takahashi, Y; Shaké, I; Oda, M; Masaike, A; Yabuzaki, T; Shimizu, HM

    JOURNAL OF MAGNETIC RESONANCE   Vol. 175 ( 2 ) page: 235 - 241   2005.8

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    Publisher:Journal of Magnetic Resonance  

    We have carried out the experiments for polarizing protons in single crystals of p-terphenyl doped with 0.1 mol% pentacene. The experiments have been performed in a magnetic field of 3 kG at room temperature or at 77 K. We obtained the polarization of 1.3% for protons in bulk at room temperature by using a pulsed dye-laser with the wavelength of 590 nm, the average power of 150 mW, and the repetition rate of 50 Hz. The polarization at 77 K reached 18% by irradiation with the dye-laser of 500 mW, 50 Hz and the same wavelength. The polarization of protons was measured by the neutron transmission method also. The result was consistent with that measured by the nuclear magnetic resonance. © 2005 Elsevier Inc. All rights reserved.

    DOI: 10.1016/j.jmr.2005.04.011

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    PubMed

  364. A broad-band THz radiation detector using a Nb-based superconducting tunnel junction

    Otani, C; Taino, T; Nakano, R; Hoshino, K; Shibuya, I; Myoren, H; Ariyoshi, S; Sato, H; Shimizu, HM; Takada, S; Kawase, K

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 15 ( 2 ) page: 591 - 594   2005.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    We have proposed and been developing a new broad-band terahertz (THz) radiation detector using a Nb-based superconducting tunnel junction (STJ). The STJ's were fabricated on LiNbO3 and LiTaO3 mono-crystal substrates. We radiated monochromatic THz pulses in the range 1-2 THz with the pulse repetition rate of 49 Hz, and successfully detected the corresponding periodic signals via a charge-sensitive preamplifier. The current signal obtained by the derivative of the output signal gave the time response of about 15-20 microseconds. The frequency response was compared with that of a conventional pyro-electric sensor. We found their frequency response showed the similar shape in frequency, demonstrating the flat response of the STJ detector in 1-2 THz. These results show that the detector can be used as a broad-band THz and far-infrared radiation detector above the frequency corresponding to the energy gap of the superconductor used for the base electrode. © 2005 IEEE.

    DOI: 10.1109/TASC.2005.849950

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  365. X-ray detection using superconducting tunnel junctions with polyimide insulation layer

    Yoshida, M; Hoshino, K; Taino, T; Myoren, H; Takada, S; Kikuchi, K; Nakagawa, H; Aoyagi, M; Sato, H; Shimizu, HM

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 15 ( 2 ) page: 606 - 608   2005.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    We have fabricated Nb-based superconducting tunnel junctions (STJs) with Al trapping layers using the photosensitive polyimide insulation layer for X-ray detector. It is possible to simplify the fabrication process of the STJs, because the photosensitive polyimide is used as the insulation layer instead of conventional inorganic insulation films without an etching process in a vacuum chamber. The polyimide insulation layer expects to be stable for thermal cycling between 0.3 K and room temperature. The preliminary experiments of 5.9 keV radiation shows the energy resolution of 86 eV. © 2005 IEEE.

    DOI: 10.1109/TASC.2005.849955

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  366. Characterization of an STJ-based direct detector of submillimeter waves

    Ariyoshi, S; Matsuo, H; Otani, C; Sato, H; Shimizu, HM; Kawase, K; Noguchi, T

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 15 ( 2 ) page: 920 - 923   2005.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    We have developed submillimeter-wave direct detectors employing niobium-based superconducting tunnel junctions (STJs), with broadband spectral response, high sensitivity and imaging capability. Spectral response peaked at 650 GHz with a fractional bandwidth of 14 percent, which fits one of the important atmospheric windows for an astronomical project. We also confirmed the linearity of the detector response in the dynamic range greater than 10 6. The measured coupling efficiency was about 0.2, which was lower than the expected value of 0.5. The measured noise current of the detector was 10 fA/√Hz, which agreed with the shot noise from the residual leakage current of 100 pA at 0.3 K. Resultant noise equivalent power (NEP) is 1.6 × 10-16 W/√Hz, that is less than the background photon fluctuation limit for ground-based submillimeter-wave observations. © 2005 IEEE.

    DOI: 10.1109/TASC.2005.850119

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  367. Characteristics of superconducting series array tunnel junctions for heavy ions

    Sato, H; Kurakado, M; Takizawa, Y; Shiki, S; Ohno, M; Shimizu, HM; Morita, K; Morimoto, K; Kaji, D; Akiyama, T

    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY   Vol. 15 ( 2 ) page: 595 - 598   2005.6

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    Publisher:IEEE Transactions on Applied Superconductivity  

    Heavy ion detection experiments were carried out with superconducting series array tunnel junctions. 40Ar beam from linear accelerator was introduced to a cryostat and stopped in a substrate on which series array tunnel junctions were fabricated. An energy resolution of 4.2% was obtained for 191 MeV 40 Ar, but linearity proved poor for energy ranges from 136 MeV to 191 MeV. © 2005 IEEE.

    DOI: 10.1109/TASC.2005.849951

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  368. The effect of X-ray irradiating superconducting tunnel junctions on Al <inf>2</inf>O<inf>3</inf> and LiNbO<inf>3</inf> substrates

    Taino T., Hoshino K., Nakano R., Otani C., Myoren H., Kawase K., Sato H., Shimizu H.M., Takada S.

    IEEE Transactions on Applied Superconductivity   Vol. 15 ( 2 PART I ) page: 599 - 601   2005.6

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    We have developed a phononmediated radiation detector using Nb-based superconducting tunnel junctions (STJs). The STJs are fabricated on a substrate as an absorber of the radiation, and a substantial amount of emergent phonons with an energy above the energy gap are detected. The performance of the detector depends on the collection efficiency of the phonons. A selection of an appropriate substrate is required for optimizing the detector performance. We fabricated Nb-based STJs on a Al2O3 and a LiNbO 3 substrates, and compared the pulse heights of substrate phonon events due to X-ray irradiation to the substrates. We found that the maximum pulse height of the phonon events for the LiNbO3 substrate was about twice of that for the Al2O3 substrate, so that these spectra which was obtained from two STJs showed different shapes, especially the peak due to phonon events. © 2005 IEEE.

    DOI: 10.1109/TASC.2005.849953

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  369. Development of a Nb_3Sn Coil for a Magnetic Neutron Lens (2)

    OKAMOTO K., NAKAMURA K., SEKI Y., OHNO M., TAKAO T., OHUCHI N., SHINTOMI T., TSUCHIYA K., ADACHI T., SHIMIZU H., OKU T., SUZUKI J., KIMURA S., HANAI S., URATA M., WATANABE I.

      Vol. 72   page: 212   2005.5

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  370. CS-7-3 THz DETECTOR USING STJ WITH SUBSTRATE ABSORBER

    Myoren Hiroaki, Nakano Ran, Hoshino Koichi, Yoshimura Shota, Taino Tohru, Otani Chiko, Shibuya Takayuki, Sato Hiromi, Shimizu Hirohiko M., Takada Susumu, Kawase Kodo

    Proceedings of the IEICE General Conference   Vol. 2005 ( 2 ) page: "S - 13"-"S-14"   2005.3

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  371. Detection of α particles with superconducting series-junction detectors -: art. no. 083503

    Kurakado, M; Sato, H; Takizawa, Y; Shiki, S; Shimizu, HM

    APPLIED PHYSICS LETTERS   Vol. 86 ( 8 ) page: 1 - 3   2005.2

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    Publisher:Applied Physics Letters  

    Superconducting series-junction detectors present the possibility of highly practical radiation detectors with high detection efficiencies, high count rates, and high energy-resolution even for radiation that is difficult to detect efficiently with traditional radiation detectors. A series-junction detector with an effective volume of 8×8×0.4 mm3 has shown that the efficiency of signal charge production is high despite its large volume. The position dependence of signal heights of a series-junction detector with an effective area of 1.5×1.5 mm2 was corrected, and the energy resolution was improved from 2.9% to 0.42%. © 2005 American Institute of Physics.

    DOI: 10.1063/1.1866509

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  372. Development of polarized neutron optics

    Shimizu, HM; Oku, T; Suzuki, J; Furusaka, M; Kiyanagi, Y

    PHYSICA B-CONDENSED MATTER   Vol. 356 ( 1-4 ) page: 121 - 125   2005.2

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    Publisher:Physica B: Condensed Matter  

    Neutron magnetic optics is a spin-selective optics and suitable for precise focusing since it is free from interactions with materials. We discuss its applications to measure the small angle neutron scattering in low-q regions. © 2004 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2004.10.061

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  373. A demonstration study of focusing geometry SANS using a magnetic lens

    Oku, T; Suzuki, J; Sasao, H; Yamada, S; Furusaka, M; Adachi, T; Shinohara, T; Ikeda, K; Shimizu, HM

    PHYSICA B-CONDENSED MATTER   Vol. 356 ( 1-4 ) page: 126 - 130   2005.2

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    Publisher:Physica B: Condensed Matter  

    A demonstration study of focusing geometry small-angle neutron scattering (FSANS) experiment was successfully performed using a superconducting sextupole magnet as a neutron focusing device and a polarized cold neutron beam. The obtained small-angle neutron scattering intensities from monodispersed SiO 2 spherical particles were discussed in terms of the scattering function taking into account the q-resolution. © 2004 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2004.10.062

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  374. Transmission bender for polarizing neutrons

    Krist, T; Peters, J; Shimizu, HM; Suzuki, J; Oku, T

    PHYSICA B-CONDENSED MATTER   Vol. 356 ( 1-4 ) page: 197 - 200   2005.2

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    Publisher:Physica B: Condensed Matter  

    A system of a polarizing solid state bender and a collimator was built and tested. The bender consists of a stack of thin silicon wafers coated with polarizing FeCo-Si supermirrors. The stack is deflected in the middle by one wafer thickness. Inserted in an unpolarized neutron beam this device works as a spin splitter by transmitting the spin down component without any change in its flight path and reflecting the spin up component. With a collimator behind the bender it can be selected which one of the spin components is transmitted. In this way a transmission polarizer for neutrons with wavelengths above 4 Å was built which has a total length of less than 10 cm. © 2004 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.physb.2004.10.076

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  375. Some experimental studies on time-of-flight radiography using a pulsed neutron source

    Kiyanagi, Y; Sakamoto, N; Iwasa, H; Kamiyama, T; Hiraga, F; Sato, S; Sagehashi, H; Ino, T; Furusaka, M; Suzuki, J; Gorin, A; Manuilov, I; Ryazantsev, A; Kuroda, K; Sakai, K; Tokanai, F; Miyasaka, H; Adachi, T; Oku, T; Ikeda, K; Suzuki, S; Morimoto, K; Shimizu, HM

    IEEE TRANSACTIONS ON NUCLEAR SCIENCE   Vol. 52 ( 1 ) page: 371 - 374   2005.2

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    Publisher:IEEE Transactions on Nuclear Science  

    We are developing a fiber type two-dimentional (2-D) position-sensitive detector having a spatial resolution less than 0.5 mm in order to use it in the time-of-flight (TOF) measurements. The detector performance was examined, and some experiments on the TOF radiography were performed using this detector. The results indicated that the detector could be applied successfully to the TOF measurement and that the TOF radiography was very useful since it gave more informative data than those obtained by the conventional radiography using a broad energy band. © 2005 IEEE.

    DOI: 10.1109/TNS.2005.844299

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  376. Boron based oxide scintillation glass for neutron detection

    Ishii, M; Kuwano, Y; Asai, T; Asaba, S; Kawamura, M; Senguttuvan, N; Hayashi, T; Kobayashi, M; Nikl, M; Hosoya, S; Sakai, K; Adachi, T; Oku, T; Shimizu, HM

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 537 ( 1-2 ) page: 282 - 285   2005.1

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    Publisher:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    The luminescence property of Ce-doped oxide glass having B and Li with large absorption coefficient for neutron was investigated by optical transmittance, alpha particle, and neutron irradiation. The light output of the B 2O 3-Li 2O:CeO 2 glass system increased with the increase in B 2O 3 and CeO 2. It was observed that the decay time which showed composition dependence varied in the range 30-45 ns. Although the light output by neutron irradiation is 9.2% of Li-glass, low density and high neutron absorption with short decay time make this new boron-based glass scintillator useful for neutron detection. (c) 2001 Elsevier Science. All rights reserved © 2004 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2004.08.027

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  377. 13pSE-2 Detection of quantum effect do to earth gravity by using UCN

    Kawasaki Shinsuke, Sanuki Tomoyuki, Okawa Hideki, Sonoda Shinya, Komamiya Sachio, Higashi Yasuo, Kume Tatsuya, Enami Kazuhiro, Hino Masahiro, Shimizu Hirohiko

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.2.1 ( 0 ) page: 14   2005

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    DOI: 10.11316/jpsgaiyo.60.2.1.0_14_2

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  378. 27aWH-3 Development of low energy particle detector using superconducting transition edge sensor (TES)

    Ohno M., Sato H., Takizawa Y., Shiki N., Kurakado M., Ariyoshi S., Mishima K., Ikeda T., Shimizu H. M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.1.1 ( 0 ) page: 81   2005

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    DOI: 10.11316/jpsgaiyo.60.1.1.0_81_1

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  379. 27aWH-1 A test experiment for neutron beta decay measurement

    Mishima Kenji, Yamada Satoru, Hirota Katsuya, Shinohara Takenao, Shiki Shigetomo, Sato Hiromi, Ohono Masashi, Suzuki Jun-ichi, Shimizu Hirohiko M.

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.1.1 ( 0 ) page: 80   2005

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    DOI: 10.11316/jpsgaiyo.60.1.1.0_80_4

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  380. 26pZA-5 Measurements of the photon beam asymmetry for the π^0 and η photoproduction at the SPring-8/LEPS beam line

    Kino K., Ishikawa T., Okamura K., Saito Y., Shimizu H., Suzuki K., Yonemura H., Iwata T., Kawamura T., Tajima Y., Yoshida H. Y., Toi Y., Matsuda T., Uchida M., Kohri H., Sumihama M., Hasegawa S., Hotta T., Matsumura T., Nakano T., Shiino Y., Fujimura H., Hicks Kenneth, Niiyama M., Miyabe M., Muramatsu N., Sugaya Y., Ohashi Y., Date S., Yorita T., Tsuru T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.1.1 ( 0 ) page: 77   2005

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    DOI: 10.11316/jpsgaiyo.60.1.1.0_77_4

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  381. 25aYS-2 Development of Neutron Focusing Devices using Supermirrors with a Parabolic Surface for Thermal and Cold Neutrons

    Ikeda K., Adachi T., Shinohara T., Morishima T., Hirota K., Mishima K., Sato H., Shimizu H. M., Morita S., Guo J., Suzuki T., Uehara Y., Lin W., Ohmori H., Hino M., Tasaki S., Oku T., Suzuki J., Soyama K., Ohoyama K., Hiraka H.

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.1.4 ( 0 ) page: 907   2005

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    DOI: 10.11316/jpsgaiyo.60.1.4.0_907_3

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  382. 24pWJ-11 Detector of Quantum effect due to gravity by using UCN

    Kawasaki Shinsuke, Sanuki Tomoyuki, Okawa Hideki, Sekiguti Toyokazu, Komamiya Satio, Hino Masahiro, Shimizu Hirohiko, Higashi Yasuo, Kume Tatsuya, Enami Kazuhiro

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.1.1 ( 0 ) page: 22   2005

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    DOI: 10.11316/jpsgaiyo.60.1.1.0_22_1

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  383. 13pSE-3 Detection of quantum effect do to earth gravity by using UCN

    Sonoda Shinya, Kawasaki Shinsuke, Okawa Hideki, Komamiya Sachio, Hino Masahiro, Shimizu Hirohiko, Sanuki Tomoyuki

    Meeting Abstracts of the Physical Society of Japan   Vol. 60.2.1 ( 0 ) page: 14   2005

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    DOI: 10.11316/jpsgaiyo.60.2.1.0_14_3

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  384. A possible cosmic ray source in TeV and EeV from the direction around the Cygnus Loop

    Takeda M., Nagano M., Watanabe Y., Chikawa M., Fukushima M., Hayashida N., Honda K., Inoue N., Kadota K., Kakimoto F., Kamata K., Kawaguchi S., Kawakami S., Kawasaki Y., Kawasumi N., Mase K., Mizobuchi S., Ohoka H., Osone S., Sakaki N., Sakurai N., Sasano M., Shimizu H.M., Shinozaki K., Teshima M., Torii R., Tsushima I., Uchihori Y., Yamamoto T., Yoshida S., Yoshii H.

    29th International Cosmic Ray Conference, ICRC 2005   Vol. 7   page: 179 - 182   2005

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    With the Akeno Giant Air Shower Array (AGASA), we published the small-scale anisotropy of cosmic rays with energies above 1019 eV. Among them, a broad cluster - BC1 around (20h 50m, 32°) - has interesting characteristics: The time distribution of members of the BC1 cluster is burst-like around MJD50000 , and this cluster locates near the famous supernova remnant: the Cygnus Loop. From this BC1 direction, two observations from the Tibet and Milagro experiments have been reported. In this report, we summarize the results from the whole observation time of AGASA and the Akeno 1km2 array experiment, and the relation with the observations from the Tibet and Milagro experiments is discussed.

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  385. Characteristics of multi-anode photomultiplier tube for the EUSO focal surface detector

    Kawasaki Y., Bertaina M.E., Sakaki N., Sato M., Shimizu H.M., Takizawa Y., Uchihori Y., Inoue N., Ohtsu I., Inoue K., Sawabe T., Kajino F.

    29th International Cosmic Ray Conference, ICRC 2005   Vol. 8   page: 165 - 168   2005

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    The focal surface of the EUSO telescope consists of a few hundred thousand of pixels of photo-detectors and detects air showers as mosaic images. The strongest requirement for the focal surface detector is the maximization of the photon detection efficiency together with the uniformity over the focal surface. We have developed a new type of multi-anode photomultiplier tube (MAPMT). The tatal photon detection efficiency has improved than before by about 2.1 times.

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  386. Development of elementary cell module for the EUSO focal surface detector

    Takizawa Y., Kawasaki Y., Sato M., Bertaina M.E., Ebisuzaki T., Shimizu H.M., Sawabe T., Kajino F., Sato I., Takara H., Isono N., Ameri M., Cuneo S., Fontanelli F., Gracco V., Musico P., Pallavicini M., Petrolini A., Sannino M., Siccardi F., Thea A.

    29th International Cosmic Ray Conference, ICRC 2005   Vol. 8   page: 213 - 216   2005

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    The Focal Surface detector of EUSO (Extreme Universe Space Observatory) consists of small autonomous functional units (elementary cell, EC) assembled in larger modules (Photo Detector Modules, PDM). Each EC is conceived as an array of 4 multianode photomultipliers (MAPMTs). We have developed EC structure for the current baseline of the multianode photomultiplier (MAPMT, R8900-M36). As the mechanical characteristics of the PDM structure (e.g. robustness to thermal and launch shocks, vibrations at launch) will affect the EC structure, we have also built a trial PDM, consisting of 36 MAPMTs (9 ECs) arranged in a cartesian layout. The purpose of such trial PDM is to develop and optimize the EC structure.

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  387. Development of a neutron detector based on a position-sensitive photomultiplier

    Hirota, K; Shinohara, T; Ikeda, K; Mishima, K; Adachi, T; Morishima, T; Satoh, S; Oku, T; Yamada, S; Sasao, H; Suzuki, J; Shimizu, HM

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   Vol. 7 ( 8 ) page: 1836 - 1838   2005

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    A neutron scintillation detector based on a position-sensitive photomultiplier has been developed for neutron spin echo and small angle neutron scattering measurements. This photomultiplier has good spatial resolution, less than 1 mm2. The detection efficiency of gamma ray background is very low for using a thin ZnS/6LiF scintillator. The effective area of this detector is around 60 cm2. © The Owner Societies 2005.

    DOI: 10.1039/b417838f

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    PubMed

  388. Detection of direct and indirect terahertz waves using a Nb-based superconducting tunnel junction

    Otani, C; Nakano, R; Taino, T; Shibuya, T; Ariyoshi, S; Myoren, H; Sato, H; Shimizu, HM; Takada, S; Kawase, K

    IRMMW-THz2005: The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, Vols 1 and 2     page: 263 - 264   2005

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  389. Chemical composition of ultra-high energy cosmic rays estimated by muon measurement with AGASA

    Shinozaki K., Chikawa M., Fukushima M., Hayashida N., Honda K., Inoue N., Kadota K., Kakimoto F., Kamata K., Kawaguchi S., Kawakami S., Kawasaki Y., Kawasumi N., Mase K., Mizobuchi S., Nagano M., Ohoka H., Osone S., Sakaki N., Sakurai N., Sasano M., Shimizu H.M., Takeda M., Teshima M., Torii R., Tsushima I., Uchihori Y., Yamamoto T., Yoshida S., Yoshii H.

    29th International Cosmic Ray Conference, ICRC 2005   Vol. 7   page: 151 - 154   2005

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    The chemical composition of ultra-high energy cosmic rays (UHECRs; > 1019 eV) is a key parameter to understand their nature and origin. In the Akeno Giant Air Shower Array (AGASA) experiment, we measured the muon density at 1000 m from the cores for 159 UHECR events. The data were interpreted by the recent CORSIKA simulation (version 6.203) with QGSJET01 and SIBYLL2.1 interaction models. The data is consistent with light components for the QGSJET model. No positive signature has been found for the gamma ray dominance. In the presentation at the conference we will report detailed results and comparisons with the results from other experiments.

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  390. Measurement and alleviation of subsurface damage in a thick-crystal neutron interferometer

    Heacock Benjamin, Haun Robert, Hirota Katsuya, Hosobata Takuya, Huber Michael G., Jamer Michelle E., Kitaguchi Masaaki, Pushin Dmitry A., Shimizu Hirohiko, Taminiau Ivar, Yamagata Yutaka, Yamamoto Tomoki, Young Albert R.

    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   Vol. 75   page: 833 - 841   2019.11

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    Publisher:Acta Crystallographica Section A: Foundations and Advances  

    DOI: 10.1107/S2053273319011604

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  391. New precise measurements of muonium hyperfine structure at J-PARC MUSE

    Strasser P., Abe M., Aoki M., Choi S., Fukao Y., Higashi Y., Higuchi T., Iinuma H., Ikedo Y., Ishida K., Ito T., Ito T. U., Iwasaki M., Kadono R., Kamigaito O., Kanda S., Kawagoe K., Kawall D., Kawamura N., Kitaguchi M., Koda A., Kojima K. M., Kubo K., Matama M., Matsuda Y., Matsudate Y., Mibe T., Miyake Y., Mizutani T., Nagamine K., Nishimura S., Ogitsu T., Saito N., Sasaki K., Seo S., Shimizu H. M., Shimomura K., Suchara T., Tajima M., Tanaka K. S., Tanaka T., Tojo J., Tomono D., Torii H. A., Torikai E., Toyoda A., Tsutsumi Y., Ueno K., Ueno Y., Yagi D., Yamamoto A., Yamanaka T., Yamazaki T., Yasuda H., Yoshida M., Yoshioka T.

    QUANTUM TECHNOLOGY INTERNATIONAL CONFERENCE 2018 (QTECH 2018)   Vol. 198   2019

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    DOI: 10.1051/epjconf/201919800003

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  392. EUSO-TA – First results from a ground-based EUSO telescope

    Abdellaoui, G., Abe, S., Adams, J.H., Ahriche, A., Allard, D., Allen, L., Alonso, G., Anchordoqui, L., Anzalone, A., Arai, Y., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bacholle, S., Bakiri, M., Baragatti, P., Barrillon, P., Bartocci, S., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A., Belov, K., Belz, J.W., Benmessai, K., Bertaina, M., Biermann, P.L., Biktemerova, S., Bisconti, F., Blanc, N., Blecki, J., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bozzo, E., Bruno, A., Caballero, K.S., Cafagna, F., Campana, D., Capdevielle, J.-N., Capel, F., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Catalano, O., Cellino, A., Chikawa, M., Chiritoi, G., Christl, M.J., Connaughton, V., Conti, L., Cordero, G., Cotto, G., Crawford, H.J., Cremonini, R., Csorna, S., Cummings, A., Dagoret-Campagne, S., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Di Martino, M., Djemil, T., Dutan, I., Ebersoldt, A., Ebisuzaki, T., Engel, R., Eser, J., Fenu, F., Fernández-González, S., Fernández-Soriano, J., Ferrarese, S., Flamini, M., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fujimoto, J., Fukushima, M., Galeotti, P., García-Ortega, E., Garipov, G., Gascón, E., Genci, J., Giraudo, G., González Alvarado, C., Gorodetzky, P., Greg, R., Guarino, F., Guzmán, A., Hachisu, Y., Haiduc, M., Harlov, B., Haungs, A., Hernández Carretero, J., Hidber Cruz, W., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Joven, E., Judd, E.G., Jung, A., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B.A., Kim, J.-S., Kim, S.-W., Kleifges, M., Klimov, P.A., Kolev, D., Krantz, H., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., La Barbera, A., Lachaud, C., Lahmar, H., Lakhdari, F., Larsson, O., Lee, J., Licandro, J., López Campano, L., Maccarone, M.C., Mackovjak, S., Mahdi, M., Maravilla, D., Marcelli, L., Marcos, J.L., Marini, A., Marszal, W., Martens, K., Martín, Y., Martinez, O., Martucci, M., Masciantonio, G., Mase, K., Mustafa, M., Matev, R., Matthews, J.N., Mebarki, N., Medina-Tanco, G., Mendoza, M.A., Menshikov, A., Merino, A., Meseguer, J., Meyer, S.S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., Morales de los Ríos, J.A., Nagataki, S., Naitamor, S., Napolitano, T., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A.V., Orleański, P., Osteria, G., Pagliaro, A., Painter, W., Panasyuk, M.I., Panico, B., Parizot, E., Park, I.H., Pastircak, B., Patzak, T., Paul, T., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piotrowski, L.W., Piraino, S., Placidi, L., Plebaniak, Z., Pliego, S., Pollini, A., Polonski, Z., Popescu, E.M., Prat, P., Prévôt, G., Prieto, H., Puehlhofer, G., Putis, M., Rabanal, J., Radu, A.A., Reyes, M., Rezazadeh, M., Ricci, M., Rodríguez Frías, M.D., Ronga, F., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M.D., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Salazar, H., Sanchez Balanzar, J.C., Sánchez, J.L., Santangelo, A., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, M., Schanz, T., Schieler, H., Scotti, V., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shimizu, H.M., Shin, H.S., Shinozaki, K., Shirahama, T., Sokolsky, P., Spataro, B., Stan, I., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Talai, M.C., Tameda, Y., Tenzer, C., Thomas, S.B., Thomson, G.B., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsenov, R., Tsunesada, Y., Tsuno, K., Tubbs, J., Turriziani, S., Uchihori, Y., Vaduvescu, O., Valdés-Galicia, J.F., Vallania, P., Vankova, G., Vigorito, C., Villaseñor, L., Vlcek, B., von Ballmoos, P., Vrabel, M., Wada, S., Watanabe, J., Watts, J., Weber, M., Weigand Muñoz, R., Weindl, A., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yang, J., Yano, H., Yashin, I.V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I.S., Zotov, M.Y., Zuccaro Marchi, A.

    Astroparticle Physics   Vol. 102   page: 98 - 111   2018.11

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    DOI: 10.1016/j.astropartphys.2018.05.007

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  393. A search for possible long range spin dependent interactions of the neutron from exotic vector boson exchange

    Haddock C, Amadio J, Anderson E, Barron-Palos L, Crawford B, Crawford C, Esposito D, Fox W, Francis I, Fry J, Gardiner H, Holley A, Korsak K, Lieffers J, Magers S, Maldonado-Velazquez M, Mayorov D, Nico J. S, Okudaira T, Paudel C, Santra S, Sarsour M, Shimizu H. M, Snow W. M, Sprow A, Steffen K, Swanson H. E, Tovesson F, Vanderwerp J, Yergeau P. A

    PHYSICS LETTERS B   Vol. 783   page: 227 - 233   2018.8

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    DOI: 10.1016/j.physletb.2018.06.066

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  394. Nuclear spin dependence of time reversal invariance violating effects in neutron scattering Reviewed

    Vladimir Gudkov, Hirohiko M. Shimizu

    Physical Review C   Vol. 97 ( 6 )   2018.6

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    The spin structure of parity violating and time reversal invariance violating effects in neutron scattering is discussed. The explicit relations between these effects are presented in terms of functions nuclear spins and neutron partial widths of p-wave resonances.

    DOI: 10.1103/PhysRevC.97.065502

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  395. The general relativistic effects on the magnetic moment in Earth's gravity Reviewed

    Morishima Takahiro, Futamase Toshifumi, Shimizu Hirohiko M

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   Vol. 2018 ( 6 )   2018.6

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    DOI: 10.1093/ptep/pty066

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  396. First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere

    Abdellaoui G., Abe S., Adams J. H. Jr., Ahriche A., Allard D., Allen L., Alonso G., Anchordoqui L., Anzalone A., Arai Y., Asano K., Attallah R., Attoui H., Ave Pernas M., Bacholle S., Bakiri M., Baragatti P., Barrillon P., Bartocci S., Bayer J., Beldjilali B., Belenguer T., Belkhalfa N., Bellotti R., Belov A., Belov K., Benmessai K., Bertainaek M., Biermann P. L., Biktemerova S., Bisconti F., Blanc N., Blecki J., Blin-Bondil S., Bobik P., Bogomilov M., Bozzo E., Bruno A., Caballero K. S., Cafagna F., Campana D., Capdevielle J-N, Capel F., Caramete A., Caramete L., Carlson P., Caruso R., Casolino M., Cassardo C., Castellina A., Catalano C., Catalano O., Cellino A., Chikawa M., Chiritoi G., Christl M. J., Connaughton V, Conti L., Cordero G., Cotto G., Crawford H. J., Cremonini R., Csorna S., Cummings A., Dagoret-Campagne S., De Donato C., de la Taille C., De Santis C., del Peral L., Di Martino M., Damian A. Diaz, Djemil T., Dutan I, Ebersoldt A., Ebisuzaki T., Engel R., Eser J., Fenuek F., Fernandez-Gonzalez S., Fernandez-Soriano J., Ferrarese S., Flamini M., Fornaro C., Fouka M., Franceschi A., Franchini S., Fuglesang C., Fujii T., Fujimoto J., Fukushima M., Galeotti P., Garcia-Ortega E., Garipov G., Gascon E., Genci J., Giraudo G., Gonzalez Alvarado C., Gorodetzky P., Greg R., Guarino F., Guzman A., Hachisu Y., Haiduc M., Harlov B., Haungs A., Hernandez Carretero J., Hidber Cruz W., Ikeda D., Inoue N., Inoue S., Isgro F., Itow Y., Jammer T., Jeong S., Joven E., Judd E. G., Jung A., Jochum J., Kajino F., Kajino T., Kalli S., Kaneko I, Karadzhov Y., Karczmarczyk J., Katahira K., Kawai K., Kawasaki Y., Kedadra A., Khales H., Khrenov B. A., Kim Jeong-Sook, Kim Soon-Wook, Kleifges M., Klimov P. A., Kolev D., Krantz H., Kreykenbohm I, Kudela K., Kurihara Y., Kusenko A., Kuznetsov E., La Barbera A., Lachaud C., Lahmar H., Lakhdari F., Larson R., Larsson O., Lee J., Licandro J., Lopez Campano L., Maccarone M. C., Mackovjak S., Mahdi M., Maravilla D., Marcelli L., Marcos J. L., Marini A., Marszal W., Martens K., Martin Y., Martinez O., Martucci M., Masciantonio G., Mase K., Mastafa M., Matev R., Matthews J. N., Mebarki N., Medina-Tanco G., Mendoza M. A., Menshikov A., Merino A., Meseguer J., Meyer S. S., Mimouni J., Miyamoto H., Mizumoto Y., Monaco A., Morales de los Rios J. A., Moretto C., Nagataki S., Naitamor S., Napolitano T., Naslund W., Nava R., Neronov A., Nomoto K., Nonaka T., Ogawa T., Ogio S., Ohmori H., Olinto A. V, Orleanski P., Osteria G., Pagliaro A., Painter W., Panasyuk M. I, Panico B., Pasqualino G., Parizot E., Park I. H., Pastircak B., Patzak T., Paul T., Perez-Grande I, Perfetto F., Peter T., Picozza P., Pindado S., Piotrowski L. W., Piraino S., Placidi L., Plebaniak Z., Pliego S., Pollini A., Polonski Z., Popescu E. M., Prat P., Prevot G., Prieto H., Puehlhofer G., Putis M., Rabanal J., Radu A. A., Reyes M., Rezazadeh M., Ricci M., Rodriguez Frias M. D., Rodencal M., Ronga F., Roudil G., Rusinov I, Rybczynski M., Sabau M. D., Saez Cano G., Sagawa H., Sahnoune Z., Saito A., Sakaki N., Salazar H., Sanchez Balanzar J. C., Sanchez J. L., Santangelo A., Sanz-Andres A., Sanz Palomino M., Saprykin O., Sarazin F., Sato M., Schanz T., Schieler H., Scotti V, Selmane S., Semikoz D., Serra M., Sharakin S., Shimizu H. M., Shinozaki K., Shirahama T., Spataro B., Stan I, Sugiyama T., Supanitsky D., Suzuki M., Szabelska B., Szabelski J., Tajima N., Tajima T., Takahashi Y., Takami H., Takeda M., Takizawa Y., Talai M. C., Tenzer C., Thomas S. B., Tibolla O., Tkachev L., Tokuno H., Tomida T., Tone N., Toscano S., Traiche M., Tsenov R., Tsunesada Y., Tsuno K., Tubbs J., Turriziani S., Uchihori Y., Vaduvescu O., Valdes-Galicia J. F., Vallania P., Vankova G., Vigorito C., Villasenor L., Vlcek B., Von Ballmoos P., Vrabel M., Wada S., Watanabe J., Watts J. Jr., Weber M., Weigand Munoz R., Weindl A., Wiencke L., Wille M., Wilms J., Wlodarczyk Z., Yamamoto T., Yang J., Yano H., Yashin I. V, Yonetoku D., Yoshida S., Young R., Zgura I. S., Zotov M. Yu, Marchi A. Zuccaro

    JOURNAL OF INSTRUMENTATION   Vol. 13   2018.5

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    DOI: 10.1088/1748-0221/13/05/P05023

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  397. Angular distribution of γ rays from neutron-induced compound states of la 140

    T. Okudaira, S. Takada, K. Hirota, A. Kimura, M. Kitaguchi, J. Koga, K. Nagamoto, T. Nakao, A. Okada, K. Sakai, H. M. Shimizu, T. Yamamoto, T. Yoshioka

    Physical Review C   Vol. 97 ( 3 )   2018.3

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    © 2018 American Physical Society. The angular distribution of individual γ rays, emitted from a neutron-induced compound-nuclear state via radiative capture reaction of La139(n,γ) has been studied as a function of incident neutron energy in the epithermal region by using germanium detectors. An asymmetry ALH was defined as (NL-NH)/(NL+NH), where NL and NH are integrals of low- and high-energy region of a neutron resonance respectively, and we found that ALH has the angular dependence of (Acosθγ+B), where θγ is the emitted angle of γ rays, with A=-0.3881±0.0236 and B=-0.0747±0.0105 in 0.74 eV p-wave resonance. This angular distribution was analyzed within the framework of interference between s- and p-wave amplitudes in the entrance channel to the compound-nuclear state, and it is interpreted as the value of the partial p-wave neutron width corresponding to the total angular momentum of the incident neutron combined with the weak matrix element, in the context of the mechanism of enhanced parity-violating effects. Additionally, we use the result to quantify the possible enhancement of the breaking of time-reversal invariance in the vicinity of the p-wave resonance.

    DOI: 10.1103/PhysRevC.97.034622

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  398. Characterization of germanium detectors for the measurement of the angular distribution of prompt γ-rays at the ANNRI in the MLF of the J-PARC

    S. Takada, T. Okudaira, F. Goto, K. Hirota, A. Kimura, M. Kitaguchi, J. Koga, T. Nakao, K. Sakai, H. M. Shimizu, T. Yamamoto, T. Yoshioka

    Journal of Instrumentation   Vol. 13 ( 2 )   2018.2

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    © 2018 IOP Publishing Ltd and Sissa Medialab. In this study, the germanium detector assembly, installed at the Accurate Neutron-Nuclear Reaction measurement Instruments (ANNRI) in the Material and Life Science Facility (MLF) operated by the Japan Proton Accelerator Research Complex (J-PARC), has been characterized for extension to the measurement of the angular distribution of individual γ-ray transitions from neutron-induced compound states. We have developed a Monte Carlo simulation code using the GEANT4 toolkit, which can reproduce the pulse-height spectra of γ-rays from radioactive sources and (n,γ) reactions. The simulation is applicable to the measurement of γ-rays in the energy region of 0.5-11.0 MeV.

    DOI: 10.1088/1748-0221/13/02/P02018

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  399. Angular Distribution of gamma-rays from Neutron-induced Compound States of 140La Reviewed

    T.Okudaira, S.Takada, K.Hirota, A.Kimura, M.Kitaguchi, J.Koga, K.Nagamoto, T.Nakao, A.Okada, K.Sakai, H.M.Shimizu, T.Yamamoto, T.Yoshioka

    Physical Review C     page: 0   2018

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  400. Cosmic ray oriented performance studies for the JEM-EUSO first level trigger

    G. Abdellaoui, S. Abe, A. Acheli, J. H. Adams, S. Ahmad, A. Ahriche, J. -N. Albert, D. Allard, G. Alonso, L. Anchordoqui, V. Andreev, A. Anzalone, W. Aouimeur, Y. Arai, N. Arsene, K. Asano, R. Attallah, H. Attoui, M. Ave Pernas, S. Bacholle, M. Bakiri, P. Baragatti, P. Barrillon, S. Bartocci, T. Batsch, J. Bayer, R. Bechini, T. Belenguer, R. Bellotti, A. Belov, K. Belov, B. Benadda, K. Benmessai, A. A. Berlind, M. Bertaina, P. L. Biermann, S. Biktemerova, F. Bisconti, N. Blanc, J. Blecki, S. Blin-Bondil, P. Bobik, M. Bogomilov, M. Bonamente, R. Boudaoud, E. Bozzo, M. S. Briggs, A. Bruno, K. S. Caballero, F. Cafagna, D. Campana, J. -N. Capdevielle, F. Capel, A. Caramete, L. Caramete, P. Carlson, R. Caruso, M. Casolino, C. Cassardo, A. Castellina, G. Castellini, C. Catalano, O. Catalano, A. Cellino, M. Chikawa, G. Chiritoi, M. J. Christl, V. Connaughton, L. Conti, G. Contino, G. Cordero, G. Cotto, H. J. Crawford, R. Cremonini, S. Csorna, S. Dagoret-Campagne, C. De Donato, C. de la Taille, C. De Santis, L. del Peral, M. Di Martino, T. Djemil, S. A. Djenas, F. Dulucq, M. Dupieux, I. Dutan, A. Ebersoldt, T. Ebisuzaki, R. Engel, J. Eser, K. Fang, F. Fenu, S. Fernandez-Gonzalez, J. Fernandez-Soriano, S. Ferrarese, D. Finco, M. Flamini, C. Fornaro, R. Forza, M. Fouka, A. Franceschi, S. Franchini, C. Fuglesang, J. Fujimoto, M. Fukushima, P. Galeotti, E. Garcia-Ortega, G. Garipov, E. Gascon, J. Geary, G. Gelmini, J. Genci, G. Giraudo, M. Gonchar, C. Gonzalez Alvarado, P. Gorodetzky, N. Guardone, F. Guarino, R. Guehaz, A. Guzman, Y. Hachisu, M. Haiduc, B. Harlov, A. Haungs, J. Hernandez Carretero, W. Hidber, K. Higashide, D. Ikeda, H. Ikeda, N. Inoue, S. Inoue, A. Insolia, F. Isgro, Y. Itow, T. Jammer, E. Joven, E. G. Judd, A. Jung, J. Jochum, F. Kajino, T. Kajino, S. Kalli, I. Kaneko, D. Kang, F. Kanouni, Y. Karadzhov, J. Karczmarczyk, M. Karus, K. Katahira, K. Kawai, Y. Kawasaki, A. Kedadra, H. Khales, B. A. Khrenov, Jeong-Sook Kim, Soon-Wook Kim, Sug-Whan Kim, M. Kleifges, P. A. Klimov, D. Kolev, I. Kreykenbohm, K. Kudela, Y. Kurihara, A. Kusenko, E. Kuznetsov, M. Lacombe, C. Lachaud, H. Lahmar, F. Lakhdari, O. Larsson, J. Lee, J. Licandro, H. Lim, L. Lopez Campano, M. C. Maccarone, S. Mackovjak, M. Mahdi, M. Manfrin, D. Maravilla, L. Marcelli, J. L. Marcos, A. Marini, K. Martens, Y. Martin, O. Martinez, G. Masciantonio, K. Mase, R. Matev, J. N. Matthews, N. Mebarki, G. Medina-Tanco, L. Mehrad, M. A. Mendoza, A. Merino, T. Mernik, J. Meseguer, S. Messaoud, O. Micu, M. Mignone, J. Mimouni, H. Miyamoto, Y. Miyazaki, Y. Mizumoto, G. Modestino, A. Monaco, D. Monnier-Ragaigne, J. A. Morales de los Rios, C. Moretto, V. S. Morozenko, B. Mot, T. Murakami, B. Nadji, M. Nagano, M. Nagata, S. Nagataki, T. Nakamura, T. Napolitano, D. Naumov, R. Nava, A. Neronov, K. Nomoto, T. Nonaka, T. Ogawa, S. Ogio, H. Ohmori, A. V. Olinto, P. Orleanski, G. Osteria, W. Painter, M. I. Panasyuk, B. Panico, E. Parizot, I. H. Park, H. W. Park, B. Pastircak, T. Patzak, T. Paul, C. Pennypacker, I. Perez-Grande, F. Perfetto, T. Peter, P. Picozza, T. Pierog, S. Pindado, L. W. Piotrowski, S. Piraino, L. Placidi, Z. Plebaniak, S. Pliego, A. Pollini, E. M. Popescu, P. Prat, G. Prevot, H. Prieto, M. Putis, J. Rabanal, A. A. Radu, M. Rahmani, P. Reardon, M. Reyes, M. Rezazadeh, M. Ricci, M. D. Rodriguez Frias, F. Ronga, M. Roth, H. Rothkaehl, G. Roudil, I. Rusinov, M. Rybczynski, M. D. Sabau, G. Saez Cano, H. Sagawa, Z. Sahnoune, A. Saito, N. Sakaki, M. Sakata, H. Salazar, J. C. Sanchez, J. L. Sanchez, A. Santangelo, L. Santiago Cruz, A. Sanz-Andres, M. Sanz Palomino, O. Saprykin, F. Sarazin, H. Sato, M. Sato, T. Schanz, H. Schieler, V. Scotti, A. Segreto, S. Selmane, D. Semikoz, M. Serra, S. Sharakin, T. Shibata, H. M. Shimizu, K. Shinozaki, T. Shirahama, G. Siemieniec-Ozieblo, J. Sledd, K. Slominska, A. Sobey, I. Stan, T. Sugiyama, D. Supanitsky, M. Suzuki, B. Szabelska, J. Szabelski, H. Tahi, F. Tajima, N. Tajima, T. Tajima, Y. Takahashi, H. Takami, M. Takeda, Y. Takizawa, M. C. Talai, C. Tenzer, O. Tibolla, L. Tkachev, H. Tokuno, T. Tomida, N. Tone, S. Toscano, M. Traiche, R. Tsenov, Y. Tsunesada, K. Tsuno, T. Tymieniecka, Y. Uchihori, M. Unger, O. Vaduvescu, J. F. Valdes-Galicia, P. Vallania, G. Vankova, C. Vigorito, L. Villasenor, B. Vlcek, P. von Ballmoos, M. Vrabel, S. Wada, J. Watanabe, S. Watanabe, J. Watts, M. Weber, R. Weigand Munoz, A. Weindl, T. J. Weiler, T. Wibig, L. Wiencke, M. Wille, J. Wilms, Z. Wlodarczyk, T. Yamamoto, Y. Yamamoto, J. Yang, H. Yano, I. V. Yashin, D. Yonetoku, S. Yoshida, R. Young, I. S. Zgura, M. Yu. Zotov, A. Zuccaro Marchi

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 866   page: 150 - 163   2017.9

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    JEM-EUSO is a space mission designed to investigate Ultra-High Energy Cosmic Rays and Neutrinos (E &gt; 5.10(19) eV) from the International Space Station (ISS). Looking down from above its wide angle telescope is able to observe their air showers and collect such data from a very wide area. Highly specific trigger algorithms are needed to drastically reduce the data load in the presence of both atmospheric and human activity related background light, yet retain the rare cosmic ray events recorded in the telescope. We report the performance in offline testing of the first level trigger algorithm on data from JEM-EUSO prototypes and laboratory measurements observing different light sources: data taken during a high altitude balloon flight over Canada, laser pulses observed from the ground traversing the real atmosphere, and model landscapes reproducing realistic aspect ratios and light conditions as would be seen from the ISS itself. The first level trigger logic successfully kept the trigger rate within the permissible bounds when challenged with artificially produced as well as naturally encountered night sky background fluctuations and while retaining events with general air-shower characteristics. (C) 2017 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2017.05.043

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  401. Meteor studies in the framework of the JEM-EUSO program

    G. Abdellaoui, S. Abe, A. Acheli, J. H. J. H. Adams, S. Ahmad, A. Ahriche, J. -N. Albert, D. Allard, G. Alonso, L. Anchordoqui, V. Andreev, A. Anzalone, W. Aouimeure, Y. Arai, N. Arsene, K. Asano, R. Attallah, H. Attoui, M. Ave Pemas, S. Bacholle, M. Bakiri, P. Baragatti, P. Barrillon, S. Bartocci, T. Batsch, J. Bayer, R. Bechini, T. Belenguer, R. Bellotti, A. Belov, K. Belov, B. Benadda, K. Benmessai, A. A. Berlind, M. Bertaina, P. L. Biermann, S. Biktemerova, F. Bisconti, N. Blanc, J. Blecki, S. Blin-Bondil, P. Bobik, M. Bogomilov, M. Bonamente, R. Boudaoud, E. Bozzo, M. S. Briggs, A. Bruno, K. S. Caballero, F. Cafagna, D. Campana, J. -N. Capdevielle, F. Capel, A. Caramete, L. Caramete, P. Carlson, R. Caruso, M. Casolino, C. Cassardo, A. Castellina, G. Castellini, C. Catalano, O. Catalano, A. Cellino, M. Chikawa, G. Chiritoi, M. J. Christl, V. Connaughton, L. Conti, G. Cordero, H. J. Crawford, R. Cremonini, S. Csorna, S. Dagoret-Campagne, C. De Donato, C. de la Taille, C. De Santis, L. del Peral, M. Di Martino, T. Djemil, S. A. Djenas, F. Dulucq, M. Dupieux, I. Dutan, A. Ebersoldt, T. Ebisuzaki, R. Engel, J. Eser, K. Fang, F. Fenu, S. Fernandez-Gonzalez, J. Fernandez-Soriano, S. Ferrarese, D. Finco, M. Flamini, C. Fornaro, M. Fouka, A. Franceschi, S. Franchini, C. Fuglesang, J. Fujimoto, M. Fukushima, P. Galeotti, E. Garcia-Ortega, G. Garipov, E. Gascon, J. Geary, G. Gelmini, J. Genci, G. Giraudo, M. Gonchar, C. Gonzalez Alvarado, P. Gorodetzky, F. Guarino, R. Guehaz, A. Guzman, Y. Hachisu, M. Haiduc, B. Harlov, A. Haungs, J. Hernandez Carretero, W. Hidber, K. Higashide, D. Ikeda, H. Ikeda, N. Inoue, S. Inoue, F. Isgro, Y. Itow, T. Jammer, E. Joven, E. G. Judd, A. Jung, J. Jochum, F. Kajino, T. Kajino, S. Kalli, I. Kaneko, D. Kang, F. Kanouni, Y. Karadzhov, J. Karczmarczyk, M. Karus, K. Katahira, K. Kawai, Y. Kawasaki, A. Kedadra, H. Khales, B. A. Khrenov, Jeong-Sook Kim, Soon-Wook Kim, Sug-Whan Kim, M. Kleifges, P. A. Klimov, D. Kolev, I. Kreykenbohm, K. Kudela, Y. Kurihara, A. Kusenko, E. Kuznetsov, M. Lacombe, C. Lachaud, H. Lahmar, F. Lakhdari, O. Larsson, J. Lee, J. Licandro, H. Lim, L. Lopez Campano, M. C. Maccarone, S. Mackovjak, M. Mandi, D. Maravilla, L. Marcelli, J. L. Marcos, A. Marini, K. Martens, Y. Martin, O. Martinez, G. Masciantonio, K. Mase, R. Matev, J. N. Matthews, N. Mebarki, G. Medina-Tanco, L. Mehrad, M. A. Mendoza, A. Merino, T. Memik, J. Meseguer, S. Messaoud, O. Micu, J. Mimouni, H. Miyamoto, Y. Miyazaki, Y. Mizumoto, G. Modestino, A. Monaco, D. Monnier-Ragaigne, J. A. Morales de los Rios, C. Moretto, V. S. Morozenko, B. Mot, T. Murakami, B. Nadji, M. Nagano, M. Nagata, S. Nagataki, T. Nakamura, T. Napolitano, A. Nardellis, D. Naumov, R. Nava, A. Neronov, K. Nomoto, T. Nonaka, T. Ogawa, S. Ogio, H. Ohmori, A. V. Olinto, P. Orleariski, G. Osteria, W. Painter, M. I. Panasyuk, B. Panico, E. Parizot, I. H. Park, H. W. Park, B. Pastircak, T. Patzak, T. Paul, C. Pennypacker, M. Perdichizzi, I. Perez-Grande, F. Perfetto, T. Peter, P. Picozza, T. Pierog, S. Pindado, L. W. Piotrowski, S. Pirainou, L. Placidis, Z. Plebaniak, S. Pliego, A. Pollini, E. M. Popescu, P. Prat, G. Prevot, H. Prieto, M. Putis, J. Rabanal, A. A. Radu, M. Rahmani, P. Reardon, M. Reyes, M. Rezazadeh, M. Ricci, M. D. Rodriguez Frias, F. Ronga, M. Roth, H. Rothkaehl, G. Roudil, I. Rusinov, M. Rybczynski, M. D. Sabau, G. Saez Cano, H. Sagawa, Z. Sahnoune, A. Saito, N. Sakaki, M. Sakata, H. Salazar, J. C. Sanchez, J. L. Sanchez, A. Santangelo, L. Santiago Cruz, A. Sanz-Andres, M. Sanz Palomino, O. Saprykin, F. Sarazin, H. Sato, M. Sato, T. Schanz, H. Schieler, V. Scotti, A. Segreto, S. Selmane, D. Semikoz, M. Serra, S. Sharakin, T. Shibata, H. M. Shimizu, K. Shinozaki, T. Shirahama, G. Siemieniec-Ozieblo, J. Sledd, K. Slomiriska, A. Sobey, I. Stan, T. Sugiyama, D. Supanitsky, M. Suzuki, B. Szabelska, J. Szabelski, H. Tahi, F. Tajima, N. Tajima, T. Tajima, Y. Takahashi, H. Takami, M. Takeda, Y. Takizawa, M. C. Talai, C. Tenzer, O. Tibolla, L. Tkachev, H. Tokuno, T. Tomida, N. Tone, S. Toscano, M. Traiche, R. Tsenov, Y. Tsunesada, K. Tsuno, T. Tymieniecka, Y. Uchihori, M. Unger, O. Vaduvescu, J. F. Valdes-Galicia, P. Vallania, G. Vankova, C. Vigorito, L. Villasenor, B. Vicek, P. von Ballmoos, M. Vrabel, S. Wada, J. Watanabe, S. Watanabe, J. Watts, M. Weber, R. Weigand Munoz, A. Weindl, T. J. Weiler, T. Wibig, L. Wiencke, M. Wille, J. Wilms, Z. Wlodarczyk, T. Yamamoto, Y. Yamamoto, J. Yang, H. Yano, I. V. Yashin, D. Yonetoku, S. Yoshida, R. Young, I. S. Zgura, M. Yu. Zotov, A. Zuccaro Marchi

    PLANETARY AND SPACE SCIENCE   Vol. 143   page: 245 - 255   2017.9

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    We summarize the state of the art of a program of UV observations from space of meteor phenomena, a secondary objective of the JEM-EUSO international collaboration. Our preliminary analysis indicates that JEM-EUSO, taking advantage of its large FOV and good sensitivity, should be able to detect meteors down to absolute magnitude close to 7. This means that JEM-EUSO should be able to record a statistically significant flux of meteors, including both sporadic ones, and events produced by different meteor streams. Being unaffected by adverse weather conditions, JEM-EUSO can also be a very important facility for the detection of bright meteors and fireballs, as these events can be detected even in conditions of very high sky background. In the case of bright events, moreover, exhibiting some persistence of the meteor train, preliminary simulations show that it should be possible to exploit the motion of the ISS itself and derive at least a rough 3D reconstruction of the meteor trajectory. Moreover, the observing strategy developed to detect meteors may also be applied to the detection of nuclearites, exotic particles whose existence has been suggested by some theoretical investigations. Nuclearites are expected to move at higher velocities than meteoroids, and to exhibit a wider range of possible trajectories, including particles moving upward after crossing the Earth. Some pilot studies, including the approved Mini-EUSO mission, a precursor of JEM-EUSO, are currently operational or in preparation. We are doing simulations to assess the performance of Mini-EUSO for meteor studies, while a few meteor events have been already detected using the ground-based facility EUSO-TA.

    DOI: 10.1016/j.pss.2016.12.001

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  402. Pseudomagnetic effects for resonance neutrons Reviewed

    Vladimir Gudkov, Hirohiko M. Shimizu

    Physical Review C   Vol. 95   page: 045501   2017.4

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    DOI: 10.1103/PhysRevC.95.045501

  403. A neutron detector with submicron spatial resolution using fine-grained nuclear emulsion

    N. Naganawa, S. Awano, M. Hino, M. Hirose, K. Hirota, H. Kawahara, M. Kitaguchi, K. Mishima, T. Nagae, H. M. Shimizu, S. Tasaki, A. Umemoto

    NEUTRON IMAGING FOR APPLICATIONS IN INDUSTRY AND SCIENCE   Vol. 88   page: 224 - 230   2017

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    We developed a neutron detector with submicron spatial resolution by incorporating Li-6 into a fine-grained nuclear emulsion. Upon exposure to thermal neutrons, tracks from neutron capture events were observed. The detector spatial resolution was estimated from their grain density. Detection efficiency was measured using the detector response to cold neutrons. (C) 2017 The Authors. Published by Elsevier B.V.

    DOI: 10.1016/j.phpro.2017.06.031

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  404. Erythrokeratoderma Variabilis Caused by p.Gly45Glu in Connexin 31: Importance of the First Extracellular Loop Glycine Residue for Gap Junction Function

    Takeichi Takuya, Sugiura Kazumitsu, Hsu Chao-Kai, Nomura Toshifumi, Takama Hiroyuki, Simpson Michael A., Shimizu Hiroshi, McGrath John A., Akiyama Masashi

    ACTA DERMATO-VENEREOLOGICA   Vol. 96 ( 4 ) page: 557 - 559   2016

  405. Pulsed neutron-beam focusing by modulating a permanent-magnet sextupole lens Reviewed

    Masako Yamada, Yoshihisa Iwashita, Masahiro Ichikawa, Yasuhiro Fuwa, Hiromu Tongu, Hirohiko M. Shimizu, Kenji Mishima, Norifumi L. Yamada, Katsuya Hirota, Yoshie Otake, Yoshichika Seki, Yutaka Yamagata, Masahiro Hino, Masaaki Kitaguchi, Ulf Garbe, Shane J. Kennedy, Wai Tung Lee, Ken H. Andersen, Bruno Guerard, Giuliana Manzin, Peter Geltenbort

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   Vol. 2015 ( 4 )   2015.4

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    We have developed a compact permanent-magnet sextupole lens for neutrons that can focus a pulsed beam with a wide wavelength range-the maximum wavelength being more than double the minimum-while sufficiently suppressing the effect of chromatic aberration. The bore diameter is o15 mm. Three units of a double-ring sextupole with a length of 66 mm are cascaded, resulting in a total length of 198 mm. The dynamic modulation range of the unit-averaged field gradient is 1.06 x 10(4)-5.86 x 10(4) Tm-2. Permanent magnets and newly developed torque-canceling elements make the device compact, its production costs low, and its operation simpler than that of other magnetic lenses. The efficacy of this lens was verified using very cold neutrons. The diameter of the focused beam spots over the wavelength range of 27-55 angstrom was the same as that of the source aperture (2 mm diameter) when the magnification of the optical arrangement was unity. The total beam flux over this wavelength range was enhanced by a factor of 43. The focusing distance from the source to the detector was 1.84 m. In addition, in a demonstration of neutron image magnification, the image of a sample mask magnified by a factor of 4.1 was observed when the magnification of the optical arrangement was 5.0.

    DOI: 10.1093/ptep/ptv015

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  406. Production of Ultra Cold Neutrons by a Doppler Shifter with Pulsed Neutrons at J-PARC Reviewed

    K.Mishima, S.Imajo, M.Hino, T.Ino, Y.Iwashita, R.Katayama, M.Kitaguchi, T.Oda, H.M.Shimizu, M.Utsuro, S.Yamashita, T.Yoshioka

    Journal of Physics Conf. Ser.   Vol. 502   page: 012030   2014

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  407. Concepts of Neutron Polarization Analysis Devices for a New Neutron Chopper Spectrometer POLANO, in J-PARC Reviewed

    K.Ohoyama, T.Yokoo, S.Itoh, T.Ino, M.Ohkawa, T.Oku, S.Tasaki, K.Iwasa, T.J.Sato, S.Ishimoto, K.Taketani, H.Kira, Y.Sakaguchi, M.Nanbu, H.Hiraka, H.M.Shimizu, M.Takeda, M.Hino, K.Hayashi, U.Fliges, P.Hautle

    Journal of Physics Conf. Ser.   Vol. 502   page: 012051   2014

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  408. Development of a New Neutron Mirror made of Deuterated Diamond-like Carbon Reviewed

    D.Sakurai, J.Chiba, T.Ino, K.Kakusho, N.Kaneko, R.Katayama, M.Kitaguchi, K.Mishima, S.Muto, K.Ozeki, H.M.Shimizu, S.Yamashita, T.Yoshioka, D.Nishimura

    Journal of Physics Conf. See.   Vol. 502   page: 012010   2014

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  409. Neutron-Antineutron Oscillation: A Snowmass 2013 White Paper

    K.Babu, S.Banerjee, D.V.Baxter, Z.Berezhiani, M.Bergevin, S.Bhattacharya, S.Brice, T.W.Burgess, L.Castellanos, S.Chattopadhyay, M-C.Chen, C.E.Coppola, R.Cowsik, J.A.Crabtree, P.Das, E.B.Dees, A.Dolgov, G.Dvali, P.Ferguson, M.Frost, T.Gabriel, A.Gal, F.Gallmeier, K.Ganezer, E.Golubeva, V.B.Graves, G.Greene, T.Handler, B.Hartfiel, A.Hawari, L.Heilbronn, C.Johnson, Y.Kamyshkov, B.Kerbikov, M.Kitaguchi, B.Z.Kopeliovich, V.B.Kopeliovich, W.Korsch, V.Kuzmin, C-Y.Liu, P.McGaughey, M.Mocko, R.Mohapatra, N.Mokhov, G.Muhrer, P.Mumm, L.Okun, R.W.Pattie Jr., D.G.Phillips II, C.Quigg, E.Ramberg, A.Ray, A.Roy, A.Ruggles, U.Sarkar, A.Saunders, A P.Serebrov, H.M.Shimizu, R.Shrock, A.K.Sikdar, S.Sjue, W.M.Snow, A.Soha, S.Spanier, S.Striganov, L.Townsend, R.Tschirhart, A.Vainshtein, R.Van Kooten, Z.Wang, B.Wehring and A.R.Young

    arXiv:1310.8593v1     page: 1-26   2013.10

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  410. Rebunching Ultracold Neutrons by Magnetic Deceleration for the Neutron EDM Experiment at J-PARC

    S.Imajo, Y.Iwashita, P.Geltenbort, Y.Arimoto, H.M.Shimizu, M.Kitaguchi, T.Yoshioka, Y.Seki

    Proc. 4th International Particle Accelerator Conference (IPAC2013), Shanghai, China 12-17 May, 2013     page: 1187   2013

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  411. An Evaluation of the Exposure in Nadir Observation of the JEM-EUSO Mission Reviewed

    J.H.Adams Jr., S.Ahmad, J.-N.Albert, D.Allard, M.Ambrosio, L.Anchordoqui, A.Anzalone, Y.Arai, C.Aramo, K.Asano, M.Ave, P.Barrillon, T.Batsch, J.Bayer, T.Belenguer, R.Bellotti, A.A.Berlind, M.Bertain, P.L.Biermann, S.Biktemerova, C.Blaksley, J.B l¸ecki, S.Blin-Bondilb, J.Blumer, P.Bobik, M.Bogomilov, M.Bonamente, M.S.Briggs, S.Briz, A.Bruno, F.Cafagna, D.Campana, J.-N.Capdevielle, R.Caruso, M.Casolino, C.Cassardo, G.Castellini, O.Catalano, A.Cellino, M.Chikawa, M.J.Christl, V.Connaughton, J.F.Cortes, H.J.Crawford, R.Cremonini, S.Csorna, J.C.D'Olivo, S.Dagoret-Campagne, A.J.de Castro, C.De Donato, C.de la Taille, L.del Peral, A.Dell'Oro, M.P.De Pascale, M.Di Martino, G.Distratis, M.Dupieux, A.Ebersoldt, T.Ebisuzaki, R.Engel, S.Falk, K.Fang, F.Fenu, I.Fernandez-Gomez, S.Ferrarese, A.Franceschi, J.Fujimoto, P.Galeotti, G.Garipov, J.Geary, U.G.Giaccari, G.Giraudo, M.Gonchar, C.Gonz´alez Alvarado, P.Gorodetzky, F.Guarino, A.Guzm´an, Y.Hachisu, B.Harlov, A.Haungs, J.Hernandez Carretero, K.Higashide, T.Iguchi, H.Ikeda, N.Inoue, S.Inoue, A.Insoli, F.Isgro, Y.Itow, E.Joven, E.G.Judd, A.Jung, F.Kajino, T.Kajino, I.Kaneko, Y.Karadzhov, J.Karczmarczyk, K.Katahira, K.Kawai, Y.Kawasaki, B.Keilhauer, B.A.Khrenov, Jeong-Sook Kim, Soon-Wook Kim, Sug-Whan Kim, M.Kleifges, P.A.Klimov, S.H.Ko, D.Kolev, I.Kreykenbohm, K.Kudela, Y.Kurihara, E.Kuznetsov, G.La Rosa, J.Lee, J.Licandro, H.Lim, F.Lopez, M.C.Maccarone, K.Mannheim, L.Marcelli, A.Marini, G.Martin-Chassard, O.Martinez, G.Masciantonio, K.Mase, R.Matev, A.Maurissen, G.Medina-Tanco, T.Mernik, H.Miyamoto, Y.Miyazaki, Y.Mizumoto, G.Modestino, D.Monnier-Ragaigne, J.A.Morales de los Rios, B.Mot, T.Murakami, M.Nagano, M.Nagata, S.Nagataki, T.Nakamura, J.W.Nam, S.Nam, K.Nam, T.Napolitano, D.Naumov, A.Neronov, K.Nomoto, T.Ogawa, H.Ohmori, A.V.Olinto, P.Orleanski, G.Osteria, N.Pacheco, M.I.Panasyuk, E.Parizot, I.H.Park, B.Pastircak, T.Patzak, T.Paul, C.Pennypacker, T.Peter, P.Picozza, A.Pollini, H.Prieto, P.Reardon, M.Reina, M.Reyes, M.Ricci, I.Rodriguez, M.D.Rodriguez Frias, F.Ronga, H.Rothkaehl, G.Roudil, I.Rusinov, M.Rybczynski, M.D.Sabau, G.Saez Cano, A.Saito, N.Sakaki, M.Sakata, H.Salazar, S.Sanchez, A.Santangelo, L.Santiago Cruz, M.Sanz Palomino, O.Saprykin, F.Sarazin, H.Sato, M.Sato, T.Schanz, H.Schieler, V.Scotti, M.Scuderi, A.Segreto, S.Selmane, D.Semikoz, M.Serra, S.Sharakin, T.Shibata, H.M.Shimizu, K.Shinozaki, T.Shirahama, G.Siemieniec-Ozieblo, H.H.Silva Lopez, J.Sledd, K.S lominska, A.Sobey, T.Sugiyama, D.Supanitsky, M.Suzuki, B.Szabelska, J.Szabelski, F.Tajima, N.Tajima, T.Tajima, Y.Takahashi, H.Takami, M.Takeda, Y.Takizawa, C.Tenzer, O.Tibolla, L.Tkachev, T.Tomida, N.Tone, F.Trillaud, R.Tsenov, K.Tsuno, T.Tymieniecka, Y.Uchihori, O.Vaduvescu, J.F.Valdes-Galicia, P.Vallani, L.Valore, G.Vankova, C.Vigorito, L.Villasenor, P.von Ballmoos, S.Wada, J.Watanabe, S.Watanabe, J.Watts Jr., M.Weber, T.J.Weiler, T.Wibig, L.Wiencke, M.Wille, J.Wilms, Z.W lodarczyk, T.Yamamoto, Y.Yamamoto, J.Yang, H.Yano, I.V.Yashin, D.Yonetoku, K.Yoshida, S.Yoshida, R.Young, A.Zamora, A.Zuccaro Marchi

    Astroparticle Physics   Vol. 44   page: 76-90   2013

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  412. Basic Concepts of Polarization Analysis for Neutron Chopper Spectrometer POLANO at J-PARC Reviewed

    K.Ohoyama, T.Yokoo, S.Itoh, J.Suzuki, K.Iwasa, T.J.Sato, H.Kira, Y.Sakaguchi, T.Ino, T.Oku, K.Tomiyasu, M.Matsuura, H.Hiraka, M.Fujita, H.Kimura, T.Sato, J.Suzuki, H.M.Shimizu, T.Arima, M.Takeda, K.Kaneko, M.Hino, S.Muto, H.Nojiri, C.H.Lee, J.G.Park and S.Choi

    J. Phys. Soc. Jpn.   Vol. 82   page: SA036   2013