2024/04/04 更新

写真a

シミズ ヒロヒコ
清水 裕彦
SHIMIZU Hirohiko
所属
大学院理学研究科 理学専攻 物理学第二 教授
大学院担当
大学院理学研究科
学部担当
理学部
職名
教授
連絡先
メールアドレス

学位 1

  1. 博士(理学) ( 1992年1月   京都大学 ) 

研究分野 1

  1. 自然科学一般 / 素粒子、原子核、宇宙線、宇宙物理にする実験

経歴 12

  1. 名古屋大学・教授

    2012年1月 - 現在

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    国名:日本国

  2. 名古屋大学

    2012年1月 - 現在

  3. 名古屋大学   大学院理学研究科 素粒子宇宙物理学専攻 原子物理学   教授

    2012年1月 - 現在

  4. 高エネルギー加速器研究機構・教授

    2005年11月 - 2011年12月

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    国名:日本国

  5. 高エネルギー加速器研究機構・教授

    2005年11月 - 2011年12月

  6. 理化学研究所・研究ユニットリーダー

    2003年10月 - 2005年11月

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    国名:日本国

  7. 理化学研究所・研究ユニットリーダー

    2003年10月 - 2005年11月

  8. 理化学研究所・研究ユニットリーダー

    2003年10月 - 2005年11月

  9. 理化学研究所・室長(副主任研究員)

    2000年8月 - 2003年9月

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    国名:日本国

  10. 理化学研究所・先任研究員

    2000年4月 - 2000年7月

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    国名:日本国

  11. 理化学研究所・研究員

    1995年7月 - 2000年3月

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    国名:日本国

  12. 高エネルギー物理学研究所・助手

    1992年4月 - 1995年6月

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    国名:日本国

▼全件表示

学歴 4

  1. 京都大学   理学研究科   物理学第二専攻

    1998年4月 - 1992年1月

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    国名: 日本国

    備考: 博士(理学)

  2. 京都大学   理学研究科   物理学第二専攻

    1986年4月 - 1988年3月

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    国名: 日本国

    備考: 理学修士

  3. 京都大学   理学部

    1982年4月 - 1986年3月

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    国名: 日本国

    備考: 理学学士

  4. 京都大学   理学研究科   物理学第二専攻

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    国名: 日本国

所属学協会 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

受賞 3

  1. 日本中性子科学会第2回技術賞

    2004年12月   日本中性子科学会  

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    受賞国:日本国

  2. 日本物理学会第7回論文賞

    2002年3月   日本物理学会  

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    受賞国:日本国

  3. 第60回注目発明

    2001年4月   文部科学省  

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    受賞国:日本国

 

論文 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   132 巻 ( 2 )   2024年1月

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    出版者・発行元: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   154 巻   2024年1月

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    出版者・発行元:Astroparticle Physics  

    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   131 巻 ( 25 )   2023年12月

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    出版者・発行元:Physical Review Letters  

    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   1057 巻   2023年12月

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    出版者・発行元: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   108 巻 ( 3 )   2023年9月

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    出版者・発行元:Physical Review C  

    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   433 巻   2023年8月

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    出版者・発行元:Proceedings of Science  

    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   107 巻 ( 5 )   2023年5月

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    出版者・発行元:Physical Review C  

    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   458 巻   2023年1月

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    出版者・発行元:Physics Letters, Section A: General, Atomic and Solid State Physics  

    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   2462 巻 ( 1 )   2023年

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    出版者・発行元:Journal of Physics: Conference Series  

    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   106 巻 ( 6 )   2022年12月

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    出版者・発行元:Physical Review C  

    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   441 巻   2022年7月

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    出版者・発行元:Physics Letters, Section A: General, Atomic and Solid State Physics  

    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   17 巻 ( 7 )   2022年7月

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    出版者・発行元:Journal of Instrumentation  

    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

    Web of Science

    Scopus

  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   105 巻 ( 12 )   2022年6月

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    出版者・発行元:Physical Review D  

    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

    Scopus

  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   380 巻   2022年5月

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    出版者・発行元:Proceedings of Science  

    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   380 巻   2022年5月

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    出版者・発行元:Proceedings of Science  

    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   105 巻 ( 5 )   2022年5月

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    出版者・発行元: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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  19. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  20. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  21. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  22. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  23. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  24. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  25. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  26. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  27. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  28. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  29. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  30. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  31. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  32. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  33. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  34. 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   395 巻   2022年3月

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    出版者・発行元:Proceedings of Science  

    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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  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   1020 巻   2021年12月

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    記述言語:日本語   出版者・発行元:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    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

    Web of Science

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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   373 巻 ( 6560 ) 頁: 1239 - 1243   2021年9月

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    記述言語:日本語   出版者・発行元:Science  

    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   48 巻 ( 7 )   2021年7月

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    記述言語:日本語   出版者・発行元:Journal of Physics G: Nuclear and Particle Physics  

    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   104 巻 ( 1 )   2021年6月

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    記述言語:日本語   出版者・発行元:Physical Review C  

    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   16 巻 ( 2 )   2021年2月

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    記述言語:日本語   出版者・発行元:Journal of Instrumentation  

    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   7 巻 ( 1 )   2021年1月

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    記述言語:日本語   出版者・発行元:Journal of Imaging  

    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   2020 巻 ( 12 )   2020年12月

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    記述言語:日本語   出版者・発行元:Progress of Theoretical and Experimental Physics  

    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. 超流動<sup>4</sup>He中の流れ場可視化にむけた中性子<sup>3</sup>He吸収反応による<sup>4</sup>He励起分子集団生成の実証

    松下 琢, Volker Sonnenschein, 井口 哲夫, 伊藤 大介, 北口 雅暁, 鬼柳 善明, Wei Guo, 齊藤 泰司, 篠原 武尚, 清水 裕彦, 鈴木 颯, 辻 義之, 富田 英生, 林田 洋寿, 菱田 真由, 廣井 孝介, 広田 克也, 丸山 巧, 脇 慎一郎, 和田 信雄

    波紋   30 巻 ( 4 ) 頁: 192 - 196   2020年11月

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    記述言語:日本語   出版者・発行元:日本中性子科学会  

    DOI: 10.5611/hamon.30.4_192

    CiNii Research

  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   108 巻 ( 3 ) 頁: E377 - E377   2020年11月

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    記述言語:日本語  

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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   977 巻   2020年10月

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    記述言語:日本語   出版者・発行元:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    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   72 巻 ( 1 )   2020年9月

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    記述言語:日本語   出版者・発行元:Earth, Planets and Space  

    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   2020.2 巻 ( 0 ) 頁: 287 - 287   2020年8月

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    記述言語:英語   出版者・発行元:The Japan Society of Applied Physics  

    DOI: 10.11470/jsapmeeting.2020.2.0_287

    CiNii Research

  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   125 巻 ( 8 )   2020年8月

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    記述言語:日本語   出版者・発行元:Journal of Geophysical Research: Solid Earth  

    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   102 巻 ( 1 )   2020年7月

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    記述言語:日本語   出版者・発行元:Physical Review C  

    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   101 巻 ( 6 )   2020年6月

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    記述言語:日本語   出版者・発行元:Physical Review C  

    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   91 巻 ( 3 )   2020年3月

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    記述言語:日本語   出版者・発行元:Review of Scientific Instruments  

    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. J-PARC/BL05における中性子寿命測定実験:SFCアップグレード

    岡部 宏紀, 日野 正裕, 広田 克也, 家城 斉, 猪野 隆, 岩下 芳久, 北口 雅暁, 北原 龍之介, 古賀 淳, 三島 賢二, 森下 彩, 中野 祐輔, 長倉 直樹, 小田 達郎, 生出 秀行, 音野 瑛俊, 関義 親, 関場 大一郎, 嶋 達志, 清水 裕彦, 角 直幸, 角野 浩史, 竹谷 薫, 富田 龍彦, 上原 英晃, 山田 崇人, 山下 了, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 72 - 72   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_72

    CiNii Research

  52. 余剰次元重力による中性子干渉性散乱を記述するモデルの開発

    近藤 亮太, 廣本 政之, 堀 太地, 大井 法子, 広田 克也, 猪野 隆, 北口 雅暁, 三島 賢二, 嶋 達志, 清水 裕彦, 原 周平, 吉岡 瑞樹

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 315 - 315   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_315

    CiNii Research

  53. 中性子複合核共鳴吸収における時間反転対称性探索に向けた偏極標的研究の進捗 2019

    石崎 貢平, 飯沼 昌隆, 池田 陽一, 池上 弘樹, 石黒 亮輔, 石元 茂, 井出 郁央, 猪野 隆, 岩田 高広, 上坂 友洋, 大友 季哉, 奥 隆之, 神田 浩樹, 北口 雅暁, 郡 英輝, 嶋 達志, 清水 裕彦, 高橋 大輔, 高橋 義朗, 藤田 全基, 堀田 大稀, 松下 琢, 三浦 大輔, 宮地 義之, 吉川 大幹, 與曽井 優, 和田 信雄, 他 NOPTREX collaboration

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 310 - 310   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_310

    CiNii Research

  54. 中性子干渉性散乱を用いた未知短距離力探索実験における検出器の性能評価

    中部 倫太郎, 清水 裕彦, 広田 克也, 北口 雅暁, 近藤 亮太, 嶋 達志, 原周 平, 廣本 政之, 猪野 隆, 三島 賢二, 吉岡 瑞樹

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 317 - 317   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_317

    CiNii Research

  55. 中性子干渉性散乱による未知短距離力探索実験に向けたナノ粒子標的の応答測定

    廣本 政之, 中部 倫太郎, 近藤 亮太, 広田 克也, 猪野 隆, 北口 雅暁, 三島 賢二, 嶋 達志, 清水 裕彦, 吉岡 瑞樹, 原 周平

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 316 - 316   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_316

    CiNii Research

  56. 中性子回折を用いた未知相互作用の探索について

    藤家 拓大, 清水 裕彦, 北口 雅暁, 山形 豊, 細畠 拓也, 竹田 真宏

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 74 - 74   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_74

    CiNii Research

  57. 中性子EDM探索実験のための結晶内電場によるスピン回転の測定

    伊藤 茂康, 福村 省三, 菱田 真由, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 275 - 275   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_275

    CiNii Research

  58. パルス中性子対応干渉計の開発

    山本 奈々, 北口 雅暁, 清水 裕彦, 関 義親, 三島 賢二

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 318 - 318   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_318

    CiNii Research

  59. NOPTREX実験に向けた偏極La標的の開発-超偏極実験用クライオスタットの立ち上げ-

    堀田 大稀, 石崎 貢平, 井出 郁央, 清水 裕彦, 北口 雅暁, 飯沼 昌隆, 郡 英輝, 與曽井 優, 吉川 大幹, 石元 茂

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 335 - 335   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_335

    CiNii Research

  60. NOPTREX実験に向けた偏極La標的の開発-LaAlO<sub>3</sub>のスピン格子緩和測定-

    井出 郁央, 石崎 貢平, 清水 裕彦, 北口 雅暁, 飯沼 昌隆, 郡 英輝, 與曽井 優, 吉川 大幹, 宮地 義之, 三浦 大輔, 石元 茂

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 311 - 311   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_311

    CiNii Research

  61. MTV実験の報告3

    尾﨑 早智, 梶原 拓真, 川村 広和, 北口 雅暁, 後藤 文也, 坂元 祐子, 清水 裕彦, 清水 裕太, 竹中 黎, 田中 佐季, 田沼 良介, 田村 晃太郎, 戸塚 祐実, 中谷 祐輔, 馬場 秀忠, 益田 英知, 山脇 友志, 横橋 麻美, 吉田 立, 渡辺 悦子, 村田 次郎

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 280 - 280   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_280

    CiNii Research

  62. MTV実験の報告2

    後藤 文也, 尾﨑 早智, 梶原 拓真, 川村 広和, 北口 雅暁, 坂元 祐子, 清水 裕彦, 清水 裕太, 竹中 黎, 田中 佐季, 田沼 良介, 田村 晃太郎, 戸塚 祐実, 中谷 祐輔, 馬場 秀忠, 益田 英知, 村田 次郎, 山脇 友志, 横橋 麻美, 渡辺 悦子

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 279 - 279   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_279

    CiNii Research

  63. MTV実験の報告1

    田村 晃太郎, 尾崎 早智, 梶原 拓真, 川村 広和, 北口 雅暁, 後藤 文也, 坂元 祐子, 清水 裕彦, 清水 裕太, 竹中 黎, 田中 佐季, 田沼 良介, 戸塚 祐実, 中谷 祐輔, 馬場 秀忠, 益田 英知, 村田 次郎, 山脇 友志, 横橋 麻美, 渡辺 悦子

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 278 - 278   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_278

    CiNii Research

  64. J-PARC/BL05における中性子寿命測定実験:バックグラウンドと系統誤差の評価

    市川 豪, 広田 克也, 家城 斉, 猪野 隆, 岩下 芳久, 梶原 昇吾, 加藤 悠, 北口 雅暁, 北原 龍之介, 古賀 淳, 牧瀬 壮, 三島 賢二, 茂木 駿紀, 森川 滉己, 森下 彩, 長倉 直樹, 中野 祐輔, 生出 秀行, 岡部 宏紀, 音野 瑛俊, 關 義親, 関場 大一郎, 嶋 達志, 清水 裕彦, 杉澤 悠紀, 角 直幸, 角野 浩史, 竹谷 薫, 田辺 友彦, 富田 龍彦, 上原 英晃, 山田 崇人, 山下 了, 矢野 浩大, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 70 - 70   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_70

    CiNii Research

  65. 弱い相互作用におけるローレンツ不変性の破れ探索実験

    竹中 黎, 尾崎 早智, 梶原 拓真, 北口 雅暁, 後藤 文也, 清水 裕彦, 清水 裕太, 田村 晃太郎, 益田 英知, 山脇 友志, 渡辺 悦子, 村田 次郎

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 313 - 313   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_313

    CiNii Research

  66. 結晶回折を用いた中性子EDM測定のための結晶内電場測定

    菱田 真由, 伊藤 茂, 福村 省三, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 276 - 276   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_276

    CiNii Research

  67. J-PARC/BL05における中性子寿命測定実験:TPC動作ガス中の<sup>3</sup>He含有率評価

    森川 滉己, 広田 克也, 市川 豪, 家城 斉, 猪野 隆, 岩下 芳久, 梶原 昇吾, 加藤 悠, 北口 雅暁, 北原 龍之介, 古賀 淳, 牧瀬 壮, 三島 賢二, 茂木 駿紀, 森下 彩, 長倉 直樹, 中野 祐輔, 生出 秀行, 岡部 宏紀, 音野 瑛俊, 關 義親, 関場 大一郎, 嶋 達志, 清水 裕彦, 杉澤 悠紀, 角 直幸, 角野 浩史, 竹谷 薫, 田辺 友彦, 富田 龍彦, 上原 英晃, 山田 崇人, 山下 了, 矢野 浩大, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   75.1 巻 ( 0 ) 頁: 71 - 71   2020年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.75.1.0_71

    CiNii Research

  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   100 巻 ( 6 )   2019年12月

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    記述言語:日本語   出版者・発行元:Physical Review C  

    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. 中性子ビームの速度均等化による高密度超冷中性子生成

    北口 雅暁, 清水 裕彦, 岩下 芳久

    加速器   16 巻 ( 3 ) 頁: 161 - 166   2019年10月

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    記述言語:日本語   出版者・発行元:日本加速器学会  

    DOI: 10.50868/pasj.16.3_161

    CiNii Research

  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   2019 巻 ( 9 )   2019年9月

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    記述言語:日本語   出版者・発行元:Progress of Theoretical and Experimental Physics  

    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., 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., Błȩcki 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., Diaz Damian A., Djemil T., Dutan I., Ebersoldt A., Ebisuzaki T., Engel R., Eser J., Fenu F., Fernández-González S., 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.

    Astroparticle Physics   111 巻   頁: 54 - 71   2019年9月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astroparticle Physics  

    The JEM-EUSO (Joint Experiment Missions for the Extreme Universe Space Observatory) program aims at developing Ultra-Violet (UV) fluorescence telescopes for efficient detections of Extensive Air Showers (EASs) induced by Ultra-High Energy Cosmic Rays (UHECRs) from satellite orbit. In order to demonstrate key technologies for JEM-EUSO, we constructed the EUSO-Balloon instrument that consists of a ∼1 m 2 refractive telescope with two Fresnel lenses and an array of multi-anode photo-multiplier tubes at the focus. Distinguishing it from the former balloon-borne experiments, EUSO-Balloon has the capabilities of single photon counting with a gate time of 2.3 µs and of imaging with a total of 2304 pixels. As a pathfinder mission, the instrument was launched for an 8 h stratospheric flight on a moonless night in August 2014 over Timmins, Canada. In this work, we analyze the count rates over ∼2.5 h intervals. The measurements are of diffuse light, e.g. of airglow emission, back-scattered from the Earth's atmosphere as well as artificial light sources. Count rates from such diffuse light are a background for EAS detections in future missions and relevant factor for the analysis of EAS events. We also obtain the geographical distribution of the count rates over a ∼780 km 2 area along the balloon trajectory. In developed areas, light sources such as the airport, mines, and factories are clearly identified. This demonstrates the correct location of signals that will be required for the EAS analysis in future missions. Although a precise determination of count rates is relevant for the existing instruments, the absolute intensity of diffuse light is deduced for the limited conditions by assuming spectra models and considering simulations of the instrument response. Based on the study of diffuse light by EUSO-Balloon, we also discuss the implications for coming pathfinders and future space-based UHECR observation missions.

    DOI: 10.1016/j.astropartphys.2018.10.008

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  72. Generation of <sup>4</sup> He 2∗ Clusters via Neutron- <sup>3</sup> He 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   196 巻 ( 1-2 ) 頁: 275 - 282   2019年7月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Low Temperature Physics  

    For flow visualization study of quantum turbulence in superfluid 4He, He2∗ excimers are unique tracers which follow only normal-fluid component flow above 1 K. To generate detectable small He2∗ clouds (clusters) required for full-space velocity field measurements, we have adopted a new method based on neutron absorption reaction of 3He impurities in 4He and conducted proof-of-principle experiments. Generation of the He2∗ excimers was detected by laser-induced fluorescence using photomultiplier tubes. The fluorescence was observed to increase proportionally to the neutron flux, suggesting that a sufficient amount of He2∗ excimers were generated by neutrons. We also estimated the number of He2∗ excimers possibly generated by γ-rays and found that the relevant contribution was less than 40%. Thus, the majority of the He2∗ excimers was confirmed to be generated via n-3He absorption reactions.

    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   99 巻 ( 2 )   2019年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review C  

    We installed a source for ultracold neutrons at a new, dedicated spallation target at TRIUMF. The source was originally developed in Japan and uses a superfluid-helium converter cooled to 0.9K. During an extensive test campaign in November 2017, we extracted up to 325000 ultracold neutrons after a one-minute irradiation of the target, over three times more than previously achieved with this source. The corresponding ultracold-neutron density in the whole production and guide volume is 5.3cm-3. The storage lifetime of ultracold neutrons in the source was initially 37 s and dropped to 24 s during the 18 days of operation. During continuous irradiation of the spallation target, we were able to detect a sustained ultracold-neutron rate of up to 1500s-1. Simulations of UCN production, UCN transport, temperature-dependent UCN yield, and temperature-dependent storage lifetime show excellent agreement with the experimental data and confirm that the ultracold-neutron-upscattering rate in superfluid helium is proportional to T7.

    DOI: 10.1103/PhysRevC.99.025503

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  74. Corrigendum to “Pendellösung interferometry by using pulsed neutrons” (Nuclear Inst. and Methods in Physics Research, A (2018) 908 (78–81), (S0168900218309963) (10.1016/j.nima.2018.08.043))

    Itoh S., Nakaji M., Uchida Y., Kitaguchi M., Shimizu H.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   918 巻   頁: 99 - 99   2019年2月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    Miller indices that the Pendellösung fringes were observed was not [Formula presented], but [Formula presented]. Therefore the description of [Formula presented] should be replaced to [Formula presented] for all in the statement and figures. In connection with this, the sentences from second line to fifth line in section 3 of 80 page should be renewed as follows. “Four diffraction peaks were observed for the [Formula presented], [Formula presented], [Formula presented], [Formula presented] planes. The diffraction peak of the [Formula presented] plane, which was in the Laue geometry condition, was analyzed for the demonstration of the Pendellösung fringes”. And Fig. 4 is replaced. The conclusion of this article is not affected due to these corrections.

    DOI: 10.1016/j.nima.2018.10.218

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  75. 今後の展望2

    清水 裕彦

    波紋   29 巻 ( 1 ) 頁: 41 - 43   2019年2月

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    記述言語:日本語   出版者・発行元:日本中性子科学会  

    <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

    CiNii Research

  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   356 巻   2019年

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    記述言語:日本語   出版者・発行元:Proceedings of Science  

    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   379 巻   2019年

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    記述言語:日本語   出版者・発行元:Proceedings of Science  

    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.

    Scopus

  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   356 巻   2019年

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    記述言語:日本語   出版者・発行元:Proceedings of Science  

    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.

    Scopus

  79. J-PARC/BL05における中性子−希ガス散乱を用いた未知相互作用探索実験−2018データ解析−

    廣本 政之, 嶋 達志, 清水 裕彦, 広田 克也, 北口 雅暁, 吉岡 瑞樹, 三島 賢二, 猪野 隆

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 306 - 306   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_306

    CiNii Research

  80. 名古屋大学加速器駆動中性子源 NUANS におけるイメージングポートの構築

    粟野 章吾, 市川 豪, 今城 想平, 岩下 芳久, 瓜谷 章, 北口 雅暁, 鬼柳 善明, 清水 裕彦, 土川 雄介, 土田 一輝, 釣田 幸雄, 広田 克也, 三和田 靖彦, 山形 豊, 山崎 淳, 吉橋 幸子, 渡辺 賢一

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 416 - 416   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_416

    CiNii Research

  81. 低エネルギー中性子照射ターゲットとしての<sup>139</sup>Laの核偏極標的開発

    石崎 貢平, 清水 裕彦, 北口 雅暁, 松下 琢, 飯沼 昌隆, 藤田 全基, 池田 陽一, 郡 英輝, 池上 弘樹, 石黒 亮輔, 石元 茂, 猪野 隆, 岩田 高広, 上坂 友洋, 大友 季哉, 奥 隆之, 神田 浩樹, 嶋 達志, 高橋 大輔, 高橋 義朗, 宮地 義之, 與曽井 優, 和田 信雄, 他NOPTREX collaboration

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 299 - 299   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_299

    CiNii Research

  82. 中性子-反中性子振動探索実験のための高分解能飛跡検出器の開発

    久村 さら, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 323 - 323   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_323

    CiNii Research

  83. 中性子干渉性散乱による未知短距離力探索に向けた原理実証実験

    廣本 政之, 堀 太地, 大井 法子, 広田 克也, 猪野 隆, 北口 雅暁, 三島 賢二, 嶋 達志, 清水 裕彦, 原 周平, 吉岡 瑞樹

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 269 - 269   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_269

    CiNii Research

  84. 中性子回折を用いた未知相互作用の探索について

    藤家 拓大, 清水 裕彦, 北口 雅暁, 山形 豊, 細畠 拓也, 竹田 真宏

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 95 - 95   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_95

    CiNii Research

  85. 中性子回折を用いた未知相互作用の探索について

    藤家 拓大, 清水 裕彦, 北口 雅暁, 山形 豊, 細畠 拓也, 竹田 真宏

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 162 - 162   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_162

    CiNii Research

  86. パルス中性子対応干渉計の開発

    山本 奈々, 北口 雅暁, 清水 裕彦, 関 義親, 三島 賢二

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 265 - 265   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_265

    CiNii Research

  87. SiO<sub>2</sub>結晶内電場測定と中性子EDM測定に向けて

    伊藤 茂康, 菱田 真由, 福村 省三, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 266 - 266   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_266

    CiNii Research

  88. MTV実験の報告2

    尾崎 早智, 梶原 拓真, 川村 広和, 北口 雅暁, 後藤 文也, 坂元 祐子, 清水 裕彦, 清水 裕太, 竹中 黎, 田中 佐季, 田沼 良介, 田村 晃太郞, 戸塚 祐実, 中谷 祐輔, 馬場 秀忠, 益田 英知, 山脇 友志, 横橋 麻美, 吉田 立, 渡辺 悦子, 村田 次郎

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 304 - 304   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_304

    CiNii Research

  89. MTV実験に関する報告1

    後藤 文也, 尾崎 早智, 梶原 拓真, 川村 広和, 北口 雅暁, 坂元 祐子, 清水 裕彦, 清水 裕太, 竹中 黎, 田中 佐季, 田村 晃太郞, 戸塚 祐実, 中谷 祐輔, 馬場 秀忠, 益田 英知, 村田 次郎, 山脇 友志, 横橋 麻美, 渡辺 悦子

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 303 - 303   2019年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_303

    CiNii Research

  90. J-PARC/BL05における中性子寿命測定実験:SFCアップグレード

    岡部 宏紀, 日野 正裕, 広田 克也, 家城 斉, 猪野 隆, 岩下 芳久, 北口 雅暁, 北原 龍之介, 古賀 淳, 三島 賢二, 森下 彩, 中野 祐輔, 長倉 直樹, 小田 達郎, 生出 秀行, 音野 瑛俊, 関 義親, 関場 大一郎, 嶋 達志, 清水 裕彦, 角 直幸, 角野 浩史, 竹谷 薫, 富田 龍彦, 上原 英晃, 山田 崇人, 山下 了, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 94 - 94   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_94

    CiNii Research

  91. J-PARC/BL05における中性子寿命測定実験:SFCアップグレード

    岡部 宏紀, 広田 克也, 家城 斉, 猪野 隆, 岩下 芳久, 北口 雅暁, 北原 龍之介, 古賀 淳, 三島 賢二, 森下 彩, 中野 祐輔, 長倉 直樹, 生出 秀行, 音野 瑛俊, 関 義親, 関場 大一郎, 嶋 達志, 清水 裕彦, 角 直幸, 角野 浩史, 竹谷 薫, 富田 龍彦, 上原 英晃, 山田 崇人, 山下 了, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 163 - 163   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_163

    CiNii Research

  92. 結晶回折を用いた中性子EDM測定のための、X線による結晶の評価

    福村 省三, 伊藤 茂康, 内田 裕也, 山本 奈々, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 299 - 299   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_299

    CiNii Research

  93. 超冷中性子リバンチャー2号機の性能評価実験結果

    今城 想平, 岩下 芳久, 三島 賢二, 北口 雅暁, 清水 裕彦, 猪野 隆, 山下 了, 広田 克也, 後藤 文也, 不破 康裕, 片山 領

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 93 - 93   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_93

    CiNii Research

  94. 複合核共鳴を用いた時間反転対称性の破れの探索実験のための偏極核標的開発

    飯沼 昌隆, 清水 裕彦, 池上 弘樹, 池田 陽一, 石崎 貢平, 石黒 亮輔, 石元 茂, 猪野 隆, 岩田 高広, 上坂 友洋, 大友 季哉, 奥 隆之, 神田 浩樹, 北口 雅暁, 郡 英樹, 嶋 達志, 高橋 大輔, 高橋 義朗, 藤田 全基, 松下 琢, 宮地 義之, 與曽 井優, 和田 信雄, 他 NOPTREX collaboration

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 277 - 277   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_277

    CiNii Research

  95. 結晶回折を用いた中性子EDM測定のための結晶内電場の測定2

    内田 裕也, 伊藤 茂康, 福村 省三, 山本 奈々, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   74.1 巻 ( 0 ) 頁: 298 - 298   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.1.0_298

    CiNii Research

  96. 結晶回折を用いた中性子EDM測定のための、結晶の評価

    菱田 真由, 伊藤 茂康, 福村 省三, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   74.2 巻 ( 0 ) 頁: 267 - 267   2019年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.74.2.0_267

    CiNii Research

  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, HM; Tada, S; Tasaki, S; Umemoto, A

    EUROPEAN PHYSICAL JOURNAL C   78 巻 ( 11 )   2018年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:European Physical Journal C  

    A new type of cold/ultracold neutron detector that can realize a spatial resolution of less than 100 nm was developed using nuclear emulsion. The detector consists of a fine-grained nuclear emulsion coating and a 50-nm thick 10B 4C layer for the neutron conversion. The detector was exposed to cold and ultracold neutrons (UCNs) at the J-PARC. Detection efficiencies were measured as (0.163 ± 0.015 (stat) ± 0.013 (sys))% and (10.3 ± 1.3 (stat) ± 1.1 (sys))% for cold and ultracold neutrons consistently with the 10B content in the converter. Positions of individual neutrons can be determined by observing secondary particle tracks recorded in the nuclear emulsion. The spatial resolution of incident neutrons were found to be in the range of 11–99 nm in the angle region of tanθ≤ 1.9 , where θ is the angle between a recorded track and the normal direction of the converter layer. The achieved spatial resolution corresponds to the improvement of one or two orders of magnitude compared with conventional techniques and it is comparable with the wavelength of UCNs.

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

    Web of Science

    Scopus

  98. Pendellösung interferometry by using pulsed neutrons 査読有り

    Itoh S., Nakaji M., Uchida Y., Kitaguchi M., Shimizu H.M.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   908 巻   頁: 78 - 81   2018年11月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment  

    Pendellösung interferometry is one of the technique for accurate determination of the structure factors of crystals. Observation method of Pendellösung fringes by using pulsed cold neutrons and the time-of-flight analysis were established. We measured the nuclear scattering length of silicon by the Pendellösung fringes with pulsed neutrons as (4.125±0.003(stat.)±0.028(syst.)). This indicates the applicability of Pendellösung interferometry at high-intensity pulsed neutron facilities for various precision measurements.

    DOI: 10.1016/j.nima.2018.08.043

    Web of Science

    Scopus

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

    Morishima, T; Futamase, T; Shimizu, HM

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2018 巻 ( 8 )   2018年8月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Progress of Theoretical and Experimental Physics  

    The authors originally denoted the muon g-factor as gμ, whichwas mistyped as "gμ" in the published manuscript during the editing process. Equation (59) should be corrected as (Formula Presented).. The publisher apologises for any inconvenience caused.

    DOI: 10.1093/ptep/pty085

    Web of Science

    Scopus

  100. 中小型加速器中性子源の構築のための日本加速器学会と日本中性子科学会の連携に関して

    広田 克也, 清水 裕彦, 岩下 芳久, 内藤 富士雄

    加速器   15 巻 ( 2 ) 頁: 69 - 72   2018年7月

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    記述言語:日本語   出版者・発行元:日本加速器学会  

    DOI: 10.50868/pasj.15.2_69

    CiNii Research

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

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

    Physical Review D   97 巻 ( 6 )   2018年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review D  

    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

    Web of Science

    Scopus

  102. 複合核状態を用いた時間反転対称性の破れ探索計画

    山本 知樹, 清水 裕彦, 北口 雅暁, 広田 克也, 石崎 貢平, 遠藤 駿典, 佐藤 匠, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 奥平 琢也, 奥 隆之, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 67 - 67   2018年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_67

    CiNii Research

  103. 中性子2次元シンチレーション検出器の評価測定

    赤木 佑, 清水 裕彦, 北口 雅暁, 広田 克也, 岡部 宏紀, 新實 裕大, 福村 省三

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 345 - 345   2018年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_345

    CiNii Research

  104. 中性子寿命測定のための光学系アップグレード

    岡部 宏紀, 中野 祐輔, 富田 龍彦, 上原 英晃, 古賀 淳, 角 直幸, 音野 瑛俊, 吉岡 瑞樹, 山下 了, 家城 斉, 長倉 直樹, 山田 崇人, 角野 浩史, 清水 裕彦, 広田 克也, 北口 雅暁, 岩下 芳久, 北原 龍之介, 嶋 達志, 関場 大一郎, 關 義親, 生出 秀行, 猪野 隆, 竹谷 薫, 三島 賢二

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 346 - 346   2018年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_346

    CiNii Research

  105. 学術分野における中性子利用

    清水 裕彦

    レーザー研究   46 巻 ( 11 ) 頁: 647   2018年

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    記述言語:日本語   出版者・発行元:一般社団法人 レーザー学会  

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

    DOI: 10.2184/lsj.46.11_647

    CiNii Research

  106. 時間反転対称性の破れ探索のための中性子偏極フィルターの開発

    佐藤 匠, 清水 裕彦, 北口 雅暁, 広田 克也, 石崎 貢平, 遠藤 駿典, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 奥平 琢也, 奥 隆之, 日野 正裕, 嶋 達志, 山形 豊, 服部 峰之

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 69 - 69   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_69

    CiNii Research

  107. 結晶回折を用いた中性子EDM探索のための動力学的回折効果の検証

    中路 雅也, 伊藤 茂康, 内田 裕也, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 388 - 388   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_388

    CiNii Research

  108. 結晶回折を用いた中性子EDM探索のための結晶内電場の測定

    内田 裕也, 伊藤 茂康, 福村 省三, 山本 奈々, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 124 - 124   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_124

    CiNii Research

  109. 結晶回折を用いた中性子EDM探索のための結晶内電場の測定に向けて

    内田 裕也, 伊藤 茂康, 中路 雅也, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 389 - 389   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_389

    CiNii Research

  110. 複合核共鳴における時間反転対称性の破れ探索実験のためのTriplet-DNPを用いた中性子スピンフィルターの開発

    高田 秀佐, 古賀 淳, 吉岡 瑞樹, 上坂 友洋, 立石 健一郎, 大竹 淑恵, 池田 義雅, 若林 泰生, 清水 裕彦, 広田 克也, 奥平 琢也, 大井 法子, 伊藤 維久弥, 山本 知樹, 石崎 貢平, 遠藤 駿典, 佐藤 匠, 北口 雅暁, 酒井 健二

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 404 - 404   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_404

    CiNii Research

  111. 複合核共鳴を用いた時間反転対称性破れ探索に向けた、<sup>81</sup>Br(n,γ)反応におけるγ線放出角度分布測定

    遠藤 駿典, 清水 裕彦, 北口 雅暁, 広田 克也, 山本 知樹, 石崎 貢平, 佐藤 匠, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 奥平 琢也, 奥 隆之, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 68 - 68   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_68

    CiNii Research

  112. 複合核状態を用いた時間反転対称性の破れ探索に向けた偏極標的開発

    石崎 貢平, 清水 裕彦, 北口 雅暁, 広田 克也, 山本 知樹, 遠藤 駿典, 佐藤 匠, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 奥平 琢也, 奥 隆之, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 70 - 70   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_70

    CiNii Research

  113. MTV Run-2017の報告

    後藤 文也, 尾崎 早智, 梶原 拓真, 川村 広和, 北口 雅暁, 坂元 祐子, 清水 裕彦, 清水 裕太, 竹中 黎, 田中 佐季, 田村 晃太郎, 戸塚 祐実, 中谷 祐輔, 馬場 秀忠, 益田 英知, 村田 次郎, 山脇 友志, 横橋 麻美, 渡辺 悦子

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 401 - 401   2018年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_401

    CiNii Research

  114. J-PARC/BL05における中性子寿命測定実験:低ガス圧運転での取得データの解析

    富田 龍彦, 上原 英晃, 古賀 淳, 角 直幸, 音野 瑛俊, 吉岡 瑞樹, 山下 了, 家城 斉, 長倉 直樹, 山田 崇人, 角野 浩史, 清水 裕彦, 広田 克也, 北口 雅暁, 岩下 芳久, 北原 龍之介, 嶋 達志, 関場 大一郎, 關 義親, 生出 秀行, 猪野 隆, 竹谷 薫, 三島 賢二

    日本物理学会講演概要集   73.1 巻 ( 0 ) 頁: 114 - 114   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.1.0_114

    CiNii Research

  115. J-PARC/BL05における中性子寿命測定実験:実験の現状(2018)

    三島 賢二, 広田 克也, 家城 斉, 猪野 隆, 岩下 芳久, 北口 雅暁, 北原 龍之介, 古賀 淳, 森下 彩, 長倉 直樹, 中野 祐輔, 生出 秀行, 岡部 宏紀, 音野 瑛俊, 関 義親, 関場 大一郎, 嶋 達志, 清水 裕彦, 角 直幸, 角野 浩史, 竹谷 薫, 富田 龍彦, 上原 英晃, 山田 崇人, 山下 了, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 72 - 72   2018年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_72

    CiNii Research

  116. J-PARC/BL05における中性子寿命測定実験:高精度化に向けたアップグレード

    上原 英晃, 角 直幸, 富田 龍彦, 音野 瑛俊, 吉岡 瑞樹, 山下 了, 長倉 直樹, 清水 裕彦, 広田 克也, 中野 祐輔, 岡部 宏紀, 北口 雅暁, 岩下 芳久, 關 義親, 生出 秀行, 猪野 隆, 竹谷 薫, 三島 賢二

    日本物理学会講演概要集   73.2 巻 ( 0 ) 頁: 73 - 73   2018年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.73.2.0_73

    CiNii Research

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

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

    Neutron News   28 巻 ( 4 ) 頁: 18 - 20   2017年10月

     詳細を見る

    出版者・発行元:Neutron News  

    DOI: 10.1080/10448632.2017.1378038

    Scopus

  118. Concentration of the velocity distribution of pulsed neutron beams 査読有り

    Kitaguchi, M; Iwashita, Y; Shimizu, HM

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2017 巻 ( 4 )   2017年4月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Progress of Theoretical and Experimental Physics  

    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 timeof-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

    Web of Science

    Scopus

  119. 複合核状態における時間反転対称性の破れ-時間反転対称性の破れ測定のための高計数率検出器の開発

    遠藤 駿典, 清水 裕彦, 北口 雅暁, 広田 克也, 奥平 琢也, 大井 法子, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 奥 隆之, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 259 - 259   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_259

    CiNii Research

  120. 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   2017-January 巻   2017年

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    出版者・発行元: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.

    Scopus

  121. 中性子EDM測定のためのBi<sub>12</sub>GeO<sub>20</sub>結晶内電場の測定(II)

    伊藤 茂康, 中路 雅也, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 269 - 269   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子EDMの存在は時間反転対称性を破る。我々は結晶内の強い電場を利用した中性子EDM測定実験を進めている。その第一ステップとしてBi_12_GeO_20_結晶内電場の測定に取り組んでいる。先回の報告では、ペンデル干渉縞のコントラスト低及び統計少が主因となり結晶内電場の測定に至らなかった。これらの課題解決に取り組み、新たな実験を行ったのでその結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_269

    CiNii Research

  122. 中性子EDM測定のためのBi<sub>12</sub>GeO<sub>20</sub>結晶内電場の測定(III)

    伊藤 茂康, 中路 雅也, 内田 裕也, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 282 - 282   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_282

    CiNii Research

  123. 名古屋大学加速器駆動小型中性子源 NUANS 2nd ビームラインの建設

    土川 雄介, 阿保 圭祐, 市川 豪, 伊藤 維久弥, 今城 想平, 岩下 芳久, 瓜谷 章, 北口 雅暁, 鬼柳 善明, 佐藤 和也, 清水 裕彦, 竹下 隼人, 土田 一輝, 釣田 幸雄, 広田 克也, 古澤 大貴, 三和田 靖彦, 山形 豊, 山崎 淳, 吉橋 幸子, 渡辺 賢一

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 228 - 228   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_228

    CiNii Research

  124. 時間反転対称性の破れの探索における、高計数率中性子検出器の開発

    遠藤 駿典, 奥平 琢也, 清水 裕彦, 北口 雅暁, 広田 克也, 岡田 晏珠, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 356 - 356   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>我々は原子核の複合核共鳴を用いて、時間反転対称性の破れの探索に取り組んでいる。この実験において必要な統計数の確保のために、1Gcpsの検出計数を持つ中性子検出器が必要となる。しかし現行の検出器では十分とは言えず、高計数率を持つ中性子検出器の開発が必須である。その上で正確な中性子数の把握のために、γ線バックグラウンドの排除も必要となる。当講演では現状の開発の進捗及び今後の展望について報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_356

    CiNii Research

  125. 結晶回折法を用いた中性子EDM探索実験のシミュレーション

    中路 雅也, 伊藤 茂康, 内田 裕也, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 283 - 283   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_283

    CiNii Research

  126. 結晶回折法を用いた中性子EDM探索実験の設計

    中路 雅也, 伊藤 茂康, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 270 - 270   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子電気双極子能率(EDM)探索はCP対称性の破れの探索の良いプローブである。ある種の結晶に存在する強力な電場(10^8^から10^9^[V/cm]程度)を利用することで中性子EDMを高い感度で測定できる可能性がある。現在我々はBi_12_GeO_20_を用いた実験を計画している。本講演では、将来的なEDM探索実験に向けた試料周りの磁場環境の設計などの検討について報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_270

    CiNii Research

  127. 複合核共鳴の時間反転対称性の破れ -<sup>117</sup>Sn及び<sup>115</sup>Inの(n,γ)反応測定の解析の現状-

    古賀 淳, 高田 秀佐, 吉岡 瑞樹, 清水 裕彦, 広田 克也, 奥平 琢也, 大井 法子, 伊藤 維久弥, 山本 知樹, 遠藤 駿典, 北口 雅暁, 木村 敦, 酒井 健二, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 257 - 257   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_257

    CiNii Research

  128. 複合核共鳴を用いた時間反転対称性の破れの探索のための偏極核標的に対する要請について

    清水 裕彦, 北口 雅暁, 広田 克也, 奥平 琢也, 大井 法子, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 宮地 義之, 酒井 健二, 日野 正裕, 嶋 達志, 郡 英輝, 山形 豊

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 261 - 261   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_261

    CiNii Research

  129. 複合核共鳴を用いた時間反転対称性の破れの探索のための偏極核標的内での中性子偏極度の挙動について

    清水 裕彦, 北口 雅暁, 広田 克也, 奥平 琢也, 岡田 晏珠, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 飯沼 昌隆, 岩田 高広, 宮地 義之, 酒井 健二, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 301 - 301   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>複合核状態を利用したT-violationの研究では、偏極中性子を偏極核標的に入射させる。その際、P-violationやT-violationに無関係なスピンスピン相互作用の影響による中性子スピンの挙動を正しく評価しておくことが、微小なT-violationの探索を実行する上での前提となる。そこで偏極核標的内での中性子偏極度の挙動を考察し、その影響を抑制する方法について議論する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_301

    CiNii Research

  130. 複合核状態における時間反転対称性の破れ-(n,γ)反応の角相関項の高精度測定

    奥平 琢也, 清水 裕彦, 北口 雅暁, 広田 克也, 岡田 晏珠, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 300 - 300   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子共鳴吸収反応において時間反転対称性の破れが増幅されることが示唆されている。我々はこの探索に向けて複合核状態での(n,γ)反応を調査する実験をJ-PARC BL04で進めている。(n,γ)反応におけるγ線の角相関はFlambaumにより予言されているが、詳細な検証は未だ行われていない。本公演では前回公演よりも高精度化したγ線の角相関測定の結果と理論的予測との比較について論じる。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_300

    CiNii Research

  131. 複合核状態における時間反転対称性の破れ-<sup>139</sup>La(n,γ)反応のγ線角分布の高精度測定:実験と解析

    奥平 琢也, 清水 裕彦, 北口 雅暁, 広田 克也, 大井 法子, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 256 - 256   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_256

    CiNii Research

  132. 複合核状態における時間反転対称性の破れ探索のための中性子偏極デバイスの開発

    山本 知樹, 清水 裕彦, 北口 雅暁, 広田 克也, 奥平 琢也, 岡田 晏珠, 伊藤 維久弥, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 303 - 303   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子共鳴吸収反応による複合核状態では部分波干渉によって空間反転対称性の破れが増幅されることが知られている。時間反転対称性も同様に増幅されることが示唆されている。我々はこの探索に向けて複合核状態での(n,γ)反応測定をJ-PARC BL04で進めている。講演では本実験において必要な中性子偏極デバイスの開発の現状について報告を行う。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_303

    CiNii Research

  133. 複合核状態における時間反転対称性の破れ探索のための偏極中性子を用いた空間反転対称性の破れ測定

    山本 知樹, 清水 裕彦, 北口 雅暁, 広田 克也, 奥平 琢也, 大井 法子, 伊藤 維久弥, 遠藤 駿典, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 奥 隆之, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 258 - 258   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_258

    CiNii Research

  134. 複合核状態における時間反転対称性の破れ探索実験計画

    北口 雅暁, 清水 裕彦, 広田 克也, 奥平 琢也, 岡田 晏珠, 伊藤 維久弥, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 299 - 299   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子吸収反応による複合核共鳴状態では部分波干渉によって対称性の破れが増幅する。時間反転対称性の破れについても電気双極子能率を超えた感度を持つ可能性がある。現在候補となるいくつかの標的核について、増幅度を見積もるための測定を進めている。J-PARCでの実験計画について報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_299

    CiNii Research

  135. 複合核状態における時間反転対称性の破れ探索実験計画

    北口 雅暁, 清水 裕彦, 広田 克也, 奥平 琢也, 大井 法子, 伊藤 維久弥, 山本 知樹, 遠藤 駿典, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 255 - 255   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_255

    CiNii Research

  136. 複合核状態における時間反転対称性の破れ-Brデータの解析

    伊藤 維久弥, 清水 裕彦, 北口 雅暁, 広田 克也, 奥平 琢也, 岡田 晏珠, 山本 知樹, 高田 秀佐, 古賀 淳, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 木村 敦, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 302 - 302   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子共鳴吸収反応において時間反転対称性の破れが増幅されることが示唆されている。我々はこの探索に向けて候補となる原子核の(n,γ)反応の測定をJ-PARC BL04で進めている。本公演では、Brを使用した実験のデータの解析の結果について発表する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_302

    CiNii Research

  137. MTV Run2016の報告I

    清水 裕太, 尾崎 早智, 梶原 拓真, 坂元 祐子, 益田 英知, 村田 次郎, 山脇 友志, 渡辺 悦子, 後藤 文也, 北口 雅暁, 清水 裕彦, 横橋 麻美, 越川 亜美, 馬場 秀忠, 川村 広和

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 304 - 304   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>MTV実験ではベータ崩壊角相関項の測定を通して時間反転対称性の破れを検証し、標準理論を超える物理の探索することを目標としてきた。昨年度までの実験で、新たにgas chamber内のgain reductionによる系統性が見つかった。本講演では、今年度行われた偏極8Liビームを用いたPhysics Runに向けての系統性の抑制について報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_304

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  138. J-PARC/BL05における中性子-希ガス散乱を用いた未知相互作用探索実験

    大井 法子, 清水 裕彦, 広田 克也, 北口 雅暁, 吉岡 瑞樹, 松本 悟, 三島 賢二, 猪野 隆, 嶋 達志

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 298 - 298   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>我々は大強度陽子加速器施設(J-PARC)において中性子と希ガスの散乱を用いた未知相互作用探索を行っている。中性子は電荷がなく原子間力を抑えられる粒子である。散乱標的に希ガスを使い、中性子の散乱角度分布を精密に測定することで、ナノメートルスケールの未知相互作用を探索することができる。2016年6月と11月にデータを取得し、順次解析を行っている。実験とデータ解析の結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_298

    CiNii Research

  139. J-PARC/BL05における中性子寿命測定実験:背景事象の見積もり

    家城 斉, 山田 崇人, 長倉 直樹, 山下 了, 関 義親, 角野 浩史, 清水 裕彦, 広田 克也, 横橋 麻美, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 富田 龍彦, 角 直幸, 森下 彩, 古賀 淳, 岩下 芳久, 北原 龍之介, 生出 秀行, 嶋 達志, 三島 賢二, 猪野 隆, 竹谷 薫

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 65 - 65   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>本研究はJ-PARC/BL05において中性子寿命測定実験を行っている。これまで寿命は2つの手法によって測定されており、それら結果には3.8σの乖離があるため、より高い精度で寿命を測ることと、不確かさを正確に見積もることが重要になっている。本研究はビーム法と呼ばれる手法に基づき、中性子をTime Projection Chamber(TPC)に入射して、その中で崩壊した中性子の崩壊生成物を検出する。先行研究との違いは、崩壊生成物のうち陽子ではなく電子を検出対象としていることであり、この電子の同定が寿命の値に不定性を与える大きな要因の1つになっている。電子の背景事象ではTPCに封入したガスに起因するものが重要であり、本講演では背景事象の見積もりについて報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_65

    CiNii Research

  140. J-PARC/BL05における中性子寿命測定実験:中性子捕獲ガンマ線の解析結果

    古賀 淳, 角 直幸, 高田 秀佐, 富田 龍彦, 森下 彩, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 家城 斉, 長倉 直樹, 山下 了, 関 義親, 角野 浩史, 清水 裕彦, 広田 克也, 奥平 琢也, 横橋 麻美, 北口 雅暁, 三島 賢二, 猪野 隆, 竹谷 薫, 木村 敦, 生出 秀行, 嶋 達志

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 64 - 64   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子寿命はCKM行列のVud項及びビッグバン元素合成論において重要なパラメータであり、これまで2手法で測定されてきた。しかし、両者の測定結果には8.4秒の乖離があり、異なる手法での測定が必要となる。本実験は検出器内で生じた中性子の崩壊を電子によって同定する。しかし、中性子捕獲反応由来のガンマ線が電子を発生させることがあり、これは背景事象となる。この背景事象を理解するためにJ−PARC/MLF/BL04で検出器と同素材の試料の中性子照射試験を行った。本講演ではその解析結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_64

    CiNii Research

  141. J-PARC/BL05における中性子寿命測定実験:大型中性子輸送光学系の性能評価

    横橋 麻美, 広田 克也, 清水 裕彦, 北口 雅暁, 北原 龍之介, 岩下 芳久, 吉岡 瑞樹, 音野 瑛俊, 山田 崇人, 山下 了, 関 義親, 生出 秀行, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 63 - 63   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子寿命は、ビッグバン元素合成理論やCKM行列のユニタリティ検証に重要なパラメーターであり、我々は1秒の精度での測定を目標としている。目標達成のためには中性子ビームのフラックス増強のためにビーム口径を拡大する必要があり、大型中性子輸送光学系を作成した。本講演では実装する光学系の性能評価について発表する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_63

    CiNii Research

  142. J-PARC/BL05における中性子寿命測定実験:実験の現状と最新結果

    三島 賢二, 広田 克也, 家城 斉, 猪野 隆, 岩下 芳久, 北口 雅暁, 北原 龍之介, 古賀 淳, 森下 彩, 長倉 直樹, 生出 秀行, 音野 瑛俊, 関 義親, 関場 大一郎, 嶋 達志, 清水 裕彦, 角 直幸, 角野 浩史, 竹谷 薫, 富田 龍彦, 山田 崇人, 山下 了, 横橋 麻美, 吉岡 瑞樹

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 75 - 75   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_75

    CiNii Research

  143. J-PARC/BL05における中性子寿命測定実験:新アンプの評価と低ガス圧運転

    富田 龍彦, 角 直幸, 森下 彩, 古賀 淳, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 山下 了, 広田 克也, 清水 裕彦, 横橋 麻美, 北口 雅暁, 生出 秀行, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 73 - 73   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_73

    CiNii Research

  144. J-PARC/BL05における中性子寿命測定実験:新アンプ・新検出器の試験

    富田 龍彦, 角 直幸, 森下 彩, 古賀 淳, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 山下 了, 広田 克也, 清水 裕彦, 横橋 麻美, 北口 雅暁, 生出 秀行, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 92 - 92   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子の寿命は基礎的な物理パラメタ(CKM行列のVud要素など)に影響を与える。これまで、中性子寿命(~880sec)は2種類の手法において値が求められているが、この手法間には3.8σのずれが存在している。そこで、我々NOPグループはJ-PARCにてこれらの実験とは独立な手法で0.1%精度での寿命導出を目指している。NOPグループでは0.1%精度実現のために検出器の改良を行っており、本講演では新アンプと新検出器の試験に関する報告を行う。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_92

    CiNii Research

  145. J-PARC/BL05における中性子寿命測定実験:高統計測定に向けたビームラインアップグレード

    北原 龍之介, 岩下 芳久, 清水 裕彦, 広田 克也, 横橋 麻美, 北口 雅暁, 山下 了, 山田 崇人, 家城 斉, 長倉 直樹, 角野 浩史, 吉岡 瑞樹, 音野 瑛俊, 富田 龍彦, 角 直幸, 森下 彩, 古賀 淳, 生出 秀行, 嶋 達志, 三島 賢二, 猪野 隆, 竹谷 薫, 関 義親, 関場 大一郎

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 76 - 76   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_76

    CiNii Research

  146. J-PARC/BL05における中性子-希ガス散乱を用いた未知相互作用探索実験-データ解析-

    大井 法子, 清水 裕彦, 広田 克也, 北口 雅暁, 吉岡 瑞樹, 松本 悟, 三島 賢二, 猪野 隆, 嶋 達志

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 263 - 263   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_263

    CiNii Research

  147. J-PARC/MLF での超冷中性子リバンチャーによる UCN 収束実験結果

    今城 想平, 岩下 芳久, 三島 賢二, 北口 雅暁, 清水 裕彦, 猪野 隆, 山下 了, 広田 克也, 後藤 文也, 不破 康裕, 片山 領, NOP collaboration

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 77 - 77   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_77

    CiNii Research

  148. 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   2017-January 巻   2017年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  149. 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   2017-January 巻   2017年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

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

    日本物理学会講演概要集   72.2 巻 ( 0 ) 頁: 262 - 262   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.72.2.0_262

    CiNii Research

  151. MTV Run-2016の報告 II

    後藤 文也, 北口 雅暁, 清水 裕彦, 横橋 麻美, 尾崎 早智, 梶原 拓真, 坂元 祐子, 清水 裕太, 益田 英知, 村田 次郎, 山脇 友志, 渡辺 悦子, 越川 亜美, 馬場 秀忠, 川村 広和

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 305 - 305   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>原子核のベータ崩壊角相関におけるR項は原子核スピン・電子運動量・電子スピンの三重項で表され、時間反転変換に対して符号を反転する。MTV実験ではR相関項の測定を通して時間反転対称性の破れを検証し、標準理論を超える物理の探索することを目標としてきた。本講演では偏極8Liビームを用いたPhysics Run の測定方法と測定内容と解析について報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_305

    CiNii Research

  152. <sup>139</sup>Laの中性子共鳴吸収の断面積の測定

    竹下 隼人, 清水 裕彦, 北口 雅暁, 広田 克也, 市川 豪, 奥平 琢也, 岡田 晏珠, 後藤 文也, 長元 孝介, 山本 知樹, 高田 秀佐, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 日野 正裕, 嶋 達志, 山形 豊, 木村 敦

    日本物理学会講演概要集   72.1 巻 ( 0 ) 頁: 360 - 360   2017年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>ある種の核における中性子共鳴吸収反応では時間反転対称性の破れの効果が増幅される可能性が示唆されている。その核の候補の一つである^139^Laの中性子共鳴吸収反応での増幅の効果を知るために共鳴パラメータを決定する必要がある。本講演では、J-PARCで行った実験のデータを解析した結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.72.1.0_360

    CiNii Research

  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   2017-January 巻   2017年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  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   237 巻 ( 1 )   2016年8月

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    出版者・発行元:Hyperfine Interactions  

    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

    Web of Science

    Scopus

  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   612 巻   頁: 1 - 45   2016年2月

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    出版者・発行元:Physics Reports  

    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

    Web of Science

    Scopus

  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   2016 巻 ( 1 )   2016年1月

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    出版者・発行元:Progress of Theoretical and Experimental Physics  

    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

    Scopus

  157. 超冷中性子リバンチャーの性能評価

    今城 想平, 岩下 芳久, 三島 賢二, 北口 雅暁, 清水 裕彦, 猪野 隆, 山下 了, NOP collaboration

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 64 - 64   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>我々はパルス中性子源を用いた中性子電気双極子能率探索実験において実験容器へ封入する超冷中性子(UCN)の体積密度を向上させる装置「UCNリバンチャー」を開発しその改良を進めてきた。UCNリバンチャーは勾配磁場とスピンフリッパーを組み合わせた中性子加速器である。我々はスピンフリッパーの改良機を作成し、現在その動作の調整および性能評価を進めている。今回は改良リバンチャーの性能試験結果について報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_64

    CiNii Research

  158. 中性子EDM測定のためのBi<sub>12</sub>GeO<sub>20</sub>結晶内電場の測定

    伊藤 茂康, 中路 雅也, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 276 - 276   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子EDMの存在は時間反転対称性を破り、その探索は新しい物理の良いプローブである。我々は結晶内に存在する強い電場を利用した中性子EDM測定実験を進めている。今回はJ-PARC BL17で行ったBi_12_GeO_20_結晶の内部電場測定実験の結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_276

    CiNii Research

  159. 名古屋大学加速器駆動中性子源(NUANS)のビームラインの設計

    伊藤 維久弥, 清水 裕彦, 北口 雅暁, 広田 克也, 市川 豪, 鬼柳 善明, 土田 一輝, 瓜谷 章, 吉橋 幸子, 渡辺 賢一, 山崎 淳, 三和田 靖彦, 山形 豊, 岩下 芳久

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 295 - 295   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>名古屋大学に新しく設置される名古屋大学加速器駆動中性子源( NUANS)の2ndビームラインを設計するために行った遮蔽計算の過程や結果、陽子加速器の出口からNUANSの2ndビームラインのターゲットまでの陽子ビームの輸送計算などについて述べる。また、この名古屋大学加速器駆動中性子源の2ndビームラインを使用してどのような実験を行うことができるのかについても述べる。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_295

    CiNii Research

  160. 結晶内電場を利用した中性子EDM探索に用いる結晶、実験体系の可能性

    中路 雅也, 伊藤 茂康, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 277 - 277   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子EDMの探索は新しい物理の良いプローブである。結晶内の強力な電場を用いることで高い感度で中性子EDMを探索できる可能性がある。現在BGO結晶を用いた実験を計画しており、結晶内電場を測定するための実験体系をJ-PARC中性子ビームラインに構築した。本講演では、EDM探索により適した結晶と実験の検討について報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_277

    CiNii Research

  161. J-PARC/MLF/BL05における冷中性子ビームを用いた<sup>14</sup>N(n,p)<sup>14</sup>C反応断面積測定

    北原 龍之介, 岩下 芳久, 清水 裕彦, 広田 克也, 横橋 麻美, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 森下 彩, 角 直幸, 富田 龍彦, 山下 了, 長倉 直樹, 家城 斉, 山田 崇人, 嶋 達志, 関 義親, 生出 秀行, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 174 - 174   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>^14^N(n,p)^14^Cは恒星中のs-processにおいて中性子を吸収してしまうため、CNOサイクル等の元素合成過程を阻害する反応の一つである。この反応断面積をJ-PARC/MLF/BL05の冷中性子ビームと中性子寿命測定用Time Prohection Chamberを用いてこれまでの断面積データの精度を超える統計精度で測定した。本講演では測定データの解析結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_174

    CiNii Research

  162. J-PARC/BL05における中性子-希ガス散乱を用いた未知相互作用探索実験

    大井 法子, 清水 裕彦, 広田 克也, 北口 雅暁, 吉岡 瑞樹, 松本 悟, 三島 賢二, 猪野 隆, 嶋 達志

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 256 - 256   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>我々は大強度陽子加速器施設(J-PARC)において中性子と希ガスの散乱を用いた未知相互作用探索を行っている。中性子は電荷がなく原子間力を抑えられる粒子である。散乱標的に希ガスを使い、中性子の散乱角度分布を測定することで、ナノメートルスケールの未知相互作用を探索することができる。実験は2016年3月に行い解析を進めている。実験と解析、またこの実験のため開発したシミュレーションについて報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_256

    CiNii Research

  163. J-PARC/BL05における中性子寿命測定実験:信号事象の同定

    家城 斉, 山田 崇人, 長倉 直樹, 山下 了, 関 義親, 角野 浩史, 清水 裕彦, 広田 克也, 横橋 麻美, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 富田 龍彦, 角 直幸, 森下 彩, 岩下 芳久, 北原 龍之介, 生出 秀行, 嶋 達志, 三島 賢二, 猪野 隆, 竹谷 薫

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 60 - 60   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子の寿命はビッグバン元素合成やCKM行列のVud項を決定づける重要なパラメータである。これまでビーム法とボトル法の2つの手法によって寿命が測定されているが、両者の測定結果には8.4秒の乖離が存在する。本研究はビーム法に基づくが、中性子の崩壊を電子によって同定することで、先行研究と異なる不確かさで寿命を導出することができる。本講演では信号事象の同定と背景事象の評価について発表する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_60

    CiNii Research

  164. J-PARC/BL05における中性子寿命測定実験:大型中性子輸送光学系の開発

    横橋 麻美, 広田 克也, 清水 裕彦, 北口 雅暁, 北原 龍之介, 岩下 芳久, 吉岡 瑞樹, 音野 瑛俊, 山田 崇人, 山下 了, 関 義親, 生出 秀行, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 79 - 79   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子寿命は、ビッグバン元素合成理論やCKM行列のユニタリティ検証に重要なパラメーターであり、我々は1秒の精度での測定を目標としている。中性子ビームのフラックス増強のためにビーム口径を拡大する必要がある。そのための大型中性子輸送光学系を作成した。本講演ではその開発と評価について発表する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_79

    CiNii Research

  165. J-PARC/BL05における中性子寿命測定実験:新検出器・アンプ開発

    富田 龍彦, 角 直幸, 森下 彩, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 山下 了, 広田 克也, 清水 裕彦, 横橋 麻美, 北口 雅暁, 生出 秀行, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 59 - 59   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子の寿命は基礎的な物理パラメーター(CKM行列のVud要素など)に影響を与える。これまで、中性子寿命(~880sec)は2種類の手法において値が求められているが、この手法間には3.8σのずれが存在している。そこで、我々NOPグループはJ-PARCにてこれらの実験とは独立な手法で0.1%精度での寿命導出を目指している。本講演は0.1%精度での測定に向けた検出器開発の進捗状況とアンプ開発の現状について報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_59

    CiNii Research

  166. J-PARC/BL05における中性子寿命測定実験:検出効率・その他系統誤差と結果

    山田 崇人, 家城 斉, 長倉 直樹, 山下 了, 角野 浩史, 清水 裕彦, 広田 克也, 横橋 麻美, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 富田 龍彦, 角 直幸, 森下 彩, 岩下 芳久, 北原 龍之介, 生出 秀行, 嶋 達志, 三島 賢二, 猪野 隆, 竹谷 薫, 関 義親

    日本物理学会講演概要集   71.2 巻 ( 0 ) 頁: 61 - 61   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    <p>中性子寿命はビッグバン元素合成やCKM行列のVud項の入力パラメータとなる重要な物理量である。現在中性子寿命の世界平均値を決定づけている 実験では大別して2つの手法が用いられているが、それらの結果には3.8σの乖離がある。本研究はその2つの手法とは別の手法を用いており、全く 異なる系統誤差を持つ実験である。最新の物理データを取得したので、本実験の系統誤差と結果を報告する。</p>

    DOI: 10.11316/jpsgaiyo.71.2.0_61

    CiNii Research

  167. 20pAH-10 J-PARC/BL05における中性子寿命測定実験 : ^3He数密度と中性子数評価

    三島 賢二, 猪野 隆, 竹谷 薫, 山下 了, 山田 崇人, 横山 晴道, 家城 斉, 長倉 直樹, 角野 浩史, 清水 裕彦, 広田 克也, 榊原 理紗, 杉野 智昭, 横橋 麻美, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 田中 元気, 富田 龍彦, 角 直幸, 森下 彩, 岩下 芳久, 北原 龍之介, 生出 秀行, 嶋 達志, 関 義親

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 109   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_109

    CiNii Research

  168. 22pAX-5 TRIUMF-MTV実験の為のスピンフリップに同期する系統性抑制法の開発

    坂元 祐子, 馬場 秀忠, 榎園 昭智, 後藤 文也, 羽取 美令, 稲葉 尚輝, 川村 広和, 北口 雅暁, 益田 英知, 長島 徹, 二宮 一史, 尾崎 早智, 清水 裕彦, 清水 裕太, 田中 祐太郎, 田沼 良介, 渡辺 悦子, 横橋 麻美, 村田 次郎

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 448   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_448

    CiNii Research

  169. 22pAX-4 複合核状態における時間反転対称性の破れ : Xe(n,γ)反応の実験と解析

    奥平 琢也, 清水 裕彦, 北口 雅暁, 広田 克也, 市川 豪, 岡田 晏珠, 後藤 文也, 長元 孝介, 高田 秀佐, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 447   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_447

    CiNii Research

  170. 22pAX-2 複合核状態における時間反転対称性の破れ : 実験の計画と現状

    北口 雅暁, 清水 裕彦, 広田 克也, 市川 豪, 奥平 琢也, 岡田 晏珠, 後藤 文也, 長元 孝介, 高田 秀佐, 吉岡 瑞樹, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 日野 正裕, 嶋 達志, 山形 豊

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 446   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_446

    CiNii Research

  171. 22pAX-1 複合核状態における時間反転対称性の破れ : 核偏極標的内の中性子スピンの挙動

    清水 裕彦, 北口 雅暁, 広田 克也, 市川 豪, 奥平 琢也, 岡田 晏珠, 後藤 文也, 長元 孝介, 高田 秀佐, 吉岡 瑞樹, 猪野 隆, 百瀬 孝昌, 岩田 高広, 宮地 義之, 嶋 達志, 山形 豊, 酒井 健二, 原田 秀郎, 木村 敦, 藤 暢輔, 旭 耕一郎, 日野 正裕

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 445   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_445

    CiNii Research

  172. 22aAH-4 J-PARC/BL05における中性子寿命測定実験 : 新検出器開発

    森下 彩, 角 直幸, 富田 龍彦, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 横山 晴道, 山下 了, 広田 克也, 清水 裕彦, 北口 雅暁, 生出 秀行, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 145   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_145

    CiNii Research

  173. 20pAP-8 J-PARC/BL05における中性子寿命測定実験 : 入射ビーム増強のための光学系

    横橋 麻美, 広田 克也, 清水 裕彦, 北口 雅暁, 北原 龍之介, 岩下 芳久, 吉岡 瑞樹, 音野 瑛俊, 山田 崇人, 山下 了, 関 義親, 生出 秀行, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 585   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_585

    CiNii Research

  174. 20pAP-7 J-PARC/BL05における中性子寿命測定実験 : 大型Spin Flip Chopper開発

    北原 龍之介, 岩下 芳久, 横橋 麻美, 広田 克也, 清水 裕彦, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 山田 崇人, 山下 了, 関 義親, 生出 秀行, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 584   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_584

    CiNii Research

  175. 20pAH-9 J-PARC/BL05における中性子寿命測定実験 : 2014/2015年データ解析

    角 直幸, 田中 元気, 富田 龍彦, 森下 彩, 吉岡 瑞樹, 音野 瑛俊, 北原 龍之介, 岩下 芳久, 山田 崇人, 家城 斉, 長倉 直樹, 横山 晴道, 山下 了, 角野 浩史, 榊原 理紗, 杉野 智昭, 横橋 麻美, 広田 克也, 清水 裕彦, 北口 雅暁, 生出 秀行, 關 義親, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 108   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_108

    CiNii Research

  176. 20pAH-8 J-PARC/BL05における中性子寿命測定実験 : シミュレーションを用いたベータ崩壊事象の検出効率の評価

    長倉 直樹, 山田 崇人, 横山 晴道, 家城 斉, 山下 了, 関 義親, 角野 浩史, 清水 裕彦, 広田 克也, 榊原 理紗, 杉野 智昭, 横橋 麻美, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 田中 元気, 角 直幸, 富田 龍彦, 森下 彩, 岩下 芳久, 北原 龍之介, 生出 秀行, 嶋 達志, 三島 賢二, 猪野 隆, 竹谷 薫

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 107   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_107

    CiNii Research

  177. 20pAH-12 J-PARC MLFでの中性子ドップラーシフターを用いた超冷中性子リバンチャーの開発

    今城 想平, 岩下 芳久, 三島 賢二, 北口 雅暁, 清水 裕彦, 猪野 隆, 山田 悟史, 山下 了, 片山 領, NOP collaboration

    日本物理学会講演概要集   71.1 巻 ( 0 ) 頁: 110   2016年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.71.1.0_110

    CiNii Research

  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   2016-September 巻   2016年

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    出版者・発行元: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.

    Scopus

  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     頁: 56 - 58   2016年

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    出版者・発行元: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.

    Scopus

  180. 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   2016-September 巻   2016年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  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   2016-September 巻   2016年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  182. 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   2016-September 巻   2016年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  183. 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   2016-September 巻   2016年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  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   799 巻   頁: 187 - 196   2015年11月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   40 巻 ( 1 ) 頁: 153 - 177   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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   40 巻 ( 1 ) 頁: 91 - 116   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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

    Web of Science

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  187. 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   40 巻 ( 1 ) 頁: 135 - 152   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  188. 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   40 巻 ( 1 ) 頁: 3 - 17   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  189. 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   40 巻 ( 1 ) 頁: 19 - 44   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  190. 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   40 巻 ( 1 ) 頁: 61 - 89   2015年11月

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    出版者・発行元: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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  191. 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   40 巻 ( 1 ) 頁: 281 - 299   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  192. 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   40 巻 ( 1 ) 頁: 45 - 60   2015年11月

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    出版者・発行元: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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  193. 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   40 巻 ( 1 ) 頁: 315 - 326   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  194. 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   40 巻 ( 1 ) 頁: 239 - 251   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  195. 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   40 巻 ( 1 ) 頁: 215 - 233   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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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  196. 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   40 巻 ( 1 ) 頁: 235 - 237   2015年11月

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    出版者・発行元:Experimental Astronomy  

    DOI: 10.1007/s10686-015-9470-1

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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   40 巻 ( 1 ) 頁: 301 - 314   2015年11月

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    出版者・発行元:Experimental Astronomy  

    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. 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   40 巻 ( 1 ) 頁: 183 - 214   2015年11月

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    出版者・発行元: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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  199. 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   40 巻 ( 1 ) 頁: 179 - 181   2015年11月

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    出版者・発行元:Experimental Astronomy  

    DOI: 10.1007/s10686-014-9420-3

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  200. 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   40 巻 ( 1 ) 頁: 253 - 279   2015年11月

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    出版者・発行元: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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    Scopus

  201. 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   40 巻 ( 1 ) 頁: 117 - 134   2015年11月

     詳細を見る

    出版者・発行元:Experimental Astronomy  

    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

    Web of Science

    Scopus

  202. 21aCE-11 中性子を用いた基礎物理 : 共鳴吸収反応でのCP対称性の破れの探索

    北口 雅暁, 清水 裕彦, 広田 克也, 市川 豪, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 日野 正裕, 吉岡 瑞樹, 嶋 達志, 山形 豊

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 254   2015年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_254

    CiNii Research

  203. 21pDF-11 複合核共鳴におけるCP非保存効果の増幅効果を利用した新物理探索

    清水 裕彦, 北口 雅暁, 広田 克也, 市川 豪, 猪野 隆, 旭 耕一郎, 百瀬 孝昌, 岩田 高広, 酒井 健二, 日野 正裕, 吉岡 瑞樹, 嶋 達志, 山形 豊

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 70   2015年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_70

    CiNii Research

  204. 21aDL-6 冷中性子を用いた中性子反中性子振動探索実験のための光学系

    市川 豪, 清水 裕彦, 北口 雅暁

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 66   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_66

    CiNii Research

  205. 21aDL-4 重力起因位相測定のための多層膜中性子干渉計の開発

    關 義親, 北口 雅暁, 日野 正裕, 清水 裕彦

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 64   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_64

    CiNii Research

  206. 21aDL-3 J-PARC/BL05における中性子寿命測定実験の系統誤差の評価

    北原 龍之介, 岩下 芳久, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 山田 崇人, 片山 領, 東 直, 横山 晴道, 角野 浩史, 山下 了, 田中 元気, 角 直幸, 音野 瑛俊, 吉岡 瑞樹, 生出 秀行, 関 義親, 三島 賢二, 竹谷 薫, 猪野 隆, 嶋 達志

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 63   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_63

    CiNii Research

  207. 21aDL-2 J-PARC/BL05における中性子寿命測定実験 : 2014年データ解析

    角 直幸, 田中 元気, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 片山 領, 東 直, 横山 晴道, 角野 浩史, 山下 了, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 生出 秀行, 関 義親, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 62   2015年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_62

    CiNii Research

  208. 21aDL-1 J-PARC/BL05における中性子寿命測定実験の現状

    田中 元気, 角 直幸, 吉岡 瑞樹, 音野 瑛俊, 北原 龍之介, 岩下 芳久, 山田 崇人, 片山 領, 東 直, 横山 晴道, 角野 浩史, 山下 了, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 生出 秀行, 関 義親, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 61   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_61

    CiNii Research

  209. 21aCE-12 CP非保存研究のための複合核における部分波混合核の測定

    広田 克也, 北口 雅暁, 清水 裕彦, 市川 豪, 杉野 智昭, 酒井 健二, 木村 敦, 原田 秀郎, 猪野 隆

    日本物理学会講演概要集   70.1 巻 ( 0 ) 頁: 255   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.1.0_255

    CiNii Research

  210. 26aSF-4 BGO 単結晶による回折を利用した中性子電気双極子モーメントの測定

    伊藤 茂康, 北口 雅暁, 清水 裕彦

    日本物理学会講演概要集   70.2 巻 ( 0 ) 頁: 250   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.2.0_250

    CiNii Research

  211. 26pSS-1 J-PARC/BL05における中性子寿命測定実験 : シミュレーションによる系統誤差の評価

    長倉 直樹, 片山 領, 山田 崇人, 東 直, 横山 晴道, 角野 浩史, 山下 了, 清水 裕彦, 広田 克也, 榊原 理紗, 杉野 智昭, 北口 雅暁, 吉岡 瑞樹, 音野 瑛俊, 田中 元気, 角 直幸, 岩下 芳久, 北原 龍之介, 生出 秀行, 嶋 達志, 三島 賢二, 猪野 隆, 竹谷 薫, 関 義親

    日本物理学会講演概要集   70.2 巻 ( 0 ) 頁: 88   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.2.0_88

    CiNii Research

  212. 26pSG-8 J-PARC/BL05における中性子寿命測定実験 : 新検出器開発

    角 直幸, 富田 龍彦, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 山田 崇人, 山下 了, 広田 克也, 清水 裕彦, 北口 雅暁, 生出 秀行, 嶋 達志, 三島 賢二, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   70.2 巻 ( 0 ) 頁: 87   2015年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.70.2.0_87

    CiNii Research

  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     頁: 2535 - 2536   2015年

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    出版者・発行元:6th International Particle Accelerator Conference, IPAC 2015  

    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.

    Scopus

  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     頁: 751 - 753   2014年7月

     詳細を見る

    出版者・発行元:IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference  

    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.

    Scopus

  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)   528 巻 ( 1 )   2014年

     詳細を見る

    出版者・発行元:Journal of Physics: Conference Series  

    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

    Web of Science

    Scopus

  216. 18aSJ-1 J-PARC/BL05中性子寿命測定実験 : 中性子フラックスの決定(18aSJ 中性子・ニュートリノ,素粒子実験領域)

    三島 賢二, 山下 了, 山田 崇人, 片山 領, 東 直, 横山 晴道, 角野 浩史, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 田中 元気, 角 直幸, 音野 瑛俊, 吉岡 瑞樹, 北原 龍之介, 岩下 芳久, 生出 秀行, 嶋 達志, 関 義親, 猪野 隆, 竹谷 薫

    日本物理学会講演概要集   69.2.1 巻 ( 0 ) 頁: 18   2014年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.69.2.1.0_18_2

    CiNii Research

  217. 18aSJ-2 J-PARC/BL05中性子寿命実験 : TPC検出器の改良及び評価(18aSJ 中性子・ニュートリノ,素粒子実験領域)

    北原 龍之介, 岩下 芳久, 山田 崇人, 片山 領, 東 直, 横山 晴道, 角野 浩史, 三島 賢二, 山下 了, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 田中 元気, 角 直幸, 音野 瑛俊, 吉岡 瑞樹, 生出 秀行, 関 義親, 嶋 達志, 竹谷 薫, 猪野 隆

    日本物理学会講演概要集   69.2.1 巻 ( 0 ) 頁: 18   2014年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.69.2.1.0_18_3

    CiNii Research

  218. 28aTR-7 J-PARC/BL05中性子寿命測定実験 : 現状と展望(28aTR 実験核物理領域,ビーム物理領域,素粒子実験領域合同,J-PARCと原子核素粒子実験(合同),実験核物理領域)

    三島 賢二, 山下 了, 山田 崇人, 片山 領, 東 直, 横山 晴道, 角野 浩史, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 田中 元気, 音野 瑛俊, 吉岡 瑞樹, 生出 秀行, 猪野 隆, 竹谷 薫, 嶋 達志, 関 義親

    日本物理学会講演概要集   69.1.1 巻 ( 0 ) 頁: 87   2014年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.69.1.1.0_87_4

    CiNii Research

  219. 29pSD-7 J-PARC/BL05中性子寿命測定実験におけるイベント同定に伴う系統誤差の理解と今後の展望(29pSD ニュートリノ振動,中性子,素粒子実験領域)

    山田 崇人, 横山 晴道, 東 直, 片山 領, 角野 浩史, 三島 賢二, 山下 了, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 田中 元気, 音野 瑛俊, 吉岡 瑞樹, 生出 秀行, 関 義親, 猪野 隆, 竹谷 薫, 嶋 達志

    日本物理学会講演概要集   69.1.1 巻 ( 0 ) 頁: 36   2014年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.69.1.1.0_36_3

    CiNii Research

  220. 29pSD-6 J-PARC/BL05中性子寿命測定実験の入射フラックス測定の安定性とその系統誤差の評価(29pSD ニュートリノ振動,中性子,素粒子実験領域)

    榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 北口 雅暁, 東 直, 横山 晴道, 山田 崇人, 片山 領, 角野 浩史, 三島 賢二, 山下 了, 田中 元気, 音野 瑛俊, 吉岡 瑞樹, 生出 秀行, 関 義親, 猪野 隆, 竹谷 薫, 嶋 達志

    日本物理学会講演概要集   69.1.1 巻 ( 0 ) 頁: 36   2014年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.69.1.1.0_36_2

    CiNii Research

  221. 29pSD-5 J-PARC/BL05中性子寿命測定実験の現状(29pSD ニュートリノ振動,中性子,素粒子実験領域)

    北口 雅暁, 榊原 理紗, 杉野 智昭, 広田 克也, 清水 裕彦, 横山 晴道, 東 直, 山田 崇人, 片山 領, 角野 浩史, 三島 賢二, 山下 了, 田中 元気, 音野 瑛俊, 吉岡 瑞樹, 生出 秀行, 関 義親, 猪野 隆, 竹谷 薫, 嶋 達志

    日本物理学会講演概要集   69.1.1 巻 ( 0 ) 頁: 36   2014年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.69.1.1.0_36_1

    CiNii Research

  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)   502 巻 ( 1 )   2014年

     詳細を見る

    出版者・発行元:Journal of Physics: Conference Series  

    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

    Web of Science

    Scopus

  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)   528 巻 ( 1 )   2014年

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    出版者・発行元: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

    Web of Science

    Scopus

  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     頁: 1187 - 1189   2013年12月

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    出版者・発行元:IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference  

    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.

    Scopus

  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   44 巻   頁: 76 - 90   2013年4月

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    出版者・発行元:Astroparticle Physics  

    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

    Web of Science

    Scopus

  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   82 巻   2013年1月

  227. 磁気レンズを用いた中性子線の制御技術とその応用

    清水 裕彦

    精密工学会誌   79 巻 ( 9 ) 頁: 809 - 812   2013年

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    記述言語:日本語   出版者・発行元:公益社団法人 精密工学会  

    DOI: 10.2493/jjspe.79.809

    CiNii Research

  228. 23pSD-3 J-PARCでの中性子EDM測定を目指したUCNリバンチャーの改良(中性子の物理,素粒子実験領域)

    今城 想平, 岩下 芳久, 清水 裕彦, 北口 雅暁, 吉岡 瑞樹, 有本 靖, 関 義親

    日本物理学会講演概要集   68.2.1 巻 ( 0 ) 頁: 28   2013年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.68.2.1.0_28_1

    CiNii Research

  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   68.1.1 巻 ( 0 ) 頁: 96   2013年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.68.1.1.0_96_1

    CiNii Research

  230. 27aRF-2 J-PARC MLFにおける中性子ドップラーシフターのUCN出力増強(27aRF 素粒子実験領域,実験核物理領域,理論核物理領域,ビーム物理領域合同 J-PARCと原子核素粒子実験,素粒子実験領域)

    今城 想平, 岩下 芳久, 清水 裕彦, 吉岡 瑞樹, 北口 雅暁, 三島 賢二, 猪野 隆, 有本 靖, 關義 親

    日本物理学会講演概要集   68.1.1 巻 ( 0 ) 頁: 29   2013年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.68.1.1.0_29_2

    CiNii Research

  231. 26aXZB-2 J-PARC偏極中性子散乱装置POLANO計画の状況(26aXZB 領域10,ビーム物理領域合同 X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    大山 研司, 横尾 哲也, 伊藤 晋一, 鈴木 純一, 佐藤 卓, 岩佐 和晃, 吉良 弘, 坂口 佳史, 奥 隆之, 猪野 隆, 平賀 晴弘, 松浦 直人, 藤田 全基, 富安 啓輔, 木村 宏之, 鈴木 淳市, 清水 裕彦, 有馬 孝尚, 武田 全康, 金子 耕士, 日野 正裕, 武藤 豪, 野尻 浩之

    日本物理学会講演概要集   68.1.4 巻 ( 0 ) 頁: 1012   2013年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.68.1.4.0_1012_4

    CiNii Research

  232. 26aXZB-2 J-PARC偏極中性子散乱装置POLANO計画の状況(26aXZB 領域10,ビーム物理領域合同 X線・粒子線(中性子),ビーム物理領域)

    大山 研司, 横尾 哲也, 伊藤 晋一, 鈴木 純一, 佐藤 卓, 岩佐 和晃, 吉良 弘, 坂口 佳史, 奥 隆之, 猪野 隆, 平賀 晴弘, 松浦 直人, 藤田 全基, 富安 啓輔, 木村 宏之, 鈴木 淳市, 清水 裕彦, 有馬 孝尚, 武田 全康, 金子 耕士, 日野 正裕, 武藤 豪, 野尻 浩之

    日本物理学会講演概要集   68.1.1 巻 ( 0 ) 頁: 146   2013年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.68.1.1.0_146_2

    CiNii Research

  233. Fundamental physics with slow neutrons

    Shimizu H.

    Proceedings of Science   2013-December 巻   2013年

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    出版者・発行元:Proceedings of Science  

    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.

    Scopus

  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   42 巻   頁: 200 - 205   2013年

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    出版者・発行元:Physics Procedia  

    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

    Web of Science

    Scopus

  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     頁: 2766 - 2768   2012年12月

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    出版者・発行元:IPAC 2012 - International Particle Accelerator Conference 2012  

    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.

    Scopus

  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   86 巻 ( 2 )   2012年8月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   22 巻 ( 3 )   2012年6月

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    出版者・発行元:IEEE Transactions on Applied Superconductivity  

    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

    Web of Science

    Scopus

  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   340 巻   2012年

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    出版者・発行元: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

    Web of Science

    Scopus

  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   67.2.1 巻 ( 0 ) 頁: 25   2012年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.2.1.0_25_1

    CiNii Research

  240. 11aSG-7 J-PARC MLFにおける超冷中性子(UCN)Rebuncherの開発(11aSG 中性子・ポジトロニウム,素粒子実験領域)

    今城 想平, 岩下 芳久, 清水 裕彦, 吉岡 瑞樹, 北口 雅暁, 有本 靖, 関 義親

    日本物理学会講演概要集   67.2.1 巻 ( 0 ) 頁: 13   2012年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.2.1.0_13_4

    CiNii Research

  241. 11aSG-6 超冷中性子用ミラー基板の表面ラフネスの評価(11aSG 中性子・ポジトロニウム,素粒子実験領域)

    関 義親, 北口 雅暁, 古岡 瑞樹, 清水 裕彦, 山田 悟史

    日本物理学会講演概要集   67.2.1 巻 ( 0 ) 頁: 13   2012年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.2.1.0_13_3

    CiNii Research

  242. 11aSG-5 ダイヤモンドライクカーボン薄膜による中性子ミラーの開発(11aSG 中性子・ポジトロニウム,素粒子実験領域)

    櫻井 大, 清水 裕彦, 猪野 隆, 吉岡 瑞樹, 北口 雅暁, 三島 賢二, 覚正 信徳

    日本物理学会講演概要集   67.2.1 巻 ( 0 ) 頁: 13   2012年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.2.1.0_13_2

    CiNii Research

  243. 24aFA-7 中性子電気双極子モーメント測定実験のための高密度超冷中性子輸送法の開発(24aFA ミュオニウム・中性子・ポジトロニウム,素粒子実験領域)

    北口 雅暁, 吉岡 瑞樹, 清水 裕彦, 有本 靖, 竹谷 薫, 猪野 隆, 武藤 豪, 岩下 芳久, 今城 想平, 三島 賢二, 神谷 好郎, 山下 了, 関 義親, 旭 耕一郎, 吉見 彰洋, 嶋 達志

    日本物理学会講演概要集   67.1.1 巻 ( 0 ) 頁: 24   2012年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.1.1.0_24_2

    CiNii Research

  244. 27aXC-10 電磁カロリメータFORESTを用いた∧光生成反応の研究(27aXC 実験核物理領域,理論核物理領域合同 エキゾチック系・ハドロン構造(合同),実験核物理領域)

    土川 雄介, 藤村 寿子, 橋本 亮, 石川 貴嗣, 桝本 新一, 宮部 学, 中村 聡彦, 清水 肇, 鈴木 耕拓, 山崎 寛仁

    日本物理学会講演概要集   67.1.1 巻 ( 0 ) 頁: 112   2012年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.1.1.0_112_4

    CiNii Research

  245. 25pCL-5 SEOP式偏極^3He中性子スピンフィルターにおける到達^3He偏極率制限因子についての考察(25pCL X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    坂口 佳史, 吉良 弘, 奥 降之, 篠原 武尚, 鈴木 淳市, 酒井 健二, 中村 充孝, 鈴谷 賢太郎, 相澤 一也, 新井 正敏, 武田 全康, 遠藤 康夫, 有本 靖, 猪野 隆, 清水 裕彦, 神山 崇, 大山 研司, 平賀 晴弘, 山田 和芳, 張 烈錚, 尾原 幸治, 加倉井 和久

    日本物理学会講演概要集   67.1.4 巻 ( 0 ) 頁: 1006   2012年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.1.4.0_1006_3

    CiNii Research

  246. 25pCL-14 J-PARC偏極度解析中性子分光器計画の進展(25pCL X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    大山 研司, 岩佐 和晃, 横尾 哲也, 伊藤 晋一, 富安 啓輔, 松浦 直人, 平賀 晴弘, 藤田 全基, 木村 宏之, 佐藤 豊人, 佐藤 卓, 有馬 孝尚, 猪野 隆, 吉良 弘, 坂口 佳史, 奥 隆之, 有本 靖, 鈴木 淳市, 清水 裕彦, 武田 全康, 金子 耕士, 日野 正裕, 武藤 豪, 野尻 浩之

    日本物理学会講演概要集   67.1.4 巻 ( 0 ) 頁: 1008   2012年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.67.1.4.0_1008_3

    CiNii Research

  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   340 巻   2012年

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    出版者・発行元:Journal of Physics: Conference Series  

    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

    Web of Science

    Scopus

  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   406 巻 ( 12 ) 頁: 2424 - 2428   2011年6月

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    出版者・発行元:Physica B: Condensed Matter  

    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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    Scopus

  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   406 巻 ( 12 ) 頁: 2433 - 2435   2011年6月

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    出版者・発行元:Physica B: Condensed Matter  

    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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    Scopus

  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   406 巻 ( 12 ) 頁: 2439 - 2442   2011年6月

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    出版者・発行元:Physica B: Condensed Matter  

    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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    Scopus

  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   634 巻 ( 1 SUPPL. ) 頁: S25 - S27   2011年4月

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    出版者・発行元: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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    Scopus

  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   634 巻 ( 1 SUPPL. ) 頁: S156 - S160   2011年4月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   634 巻 ( 1 SUPPL. )   2011年4月

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    出版者・発行元: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

    Scopus

  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   634 巻   頁: S134 - S137   2011年4月

  255. 16aSD-5 中性子電気双極子モーメント測定実験のための高密度超冷中性子輸送法の開発II(16aSD ニュートリノ・Bの物理・中性子EDM,素粒子実験領域)

    北口 雅暁, 吉岡 瑞樹, 三島 賢二, 有本 靖, 竹谷 薫, 猪野 隆, 武藤 豪, 清水 裕彦, 岩下 芳久, 今城 想平, 神谷 好朗, 山下 了, 旭 耕-郎, 吉見 彰洋, 嶋 達志

    日本物理学会講演概要集   66.2.1 巻 ( 0 ) 頁: 14   2011年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.2.1.0_14_4

    CiNii Research

  256. 22pJA-2 J-PARC偏極度解析中性子分光器計画の進展(22pJA X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    大山 研司, 岩佐 和晃, 横尾 哲也, 伊藤 晋一, 平賀 晴弘, 藤田 全基, 松浦 直人, 木村 宏之, 富安 啓輔, 佐藤 豊人, 佐藤 卓, 有馬 孝尚, 猪野 隆, 吉良 弘, 坂口 佳史, 奥 隆之, 有本 靖, 鈴木 淳市, 清水 裕彦, 武田 全康, 金子 耕士, 日野 正裕, 武藤 豪, 野尻 浩之

    日本物理学会講演概要集   66.2.4 巻 ( 0 ) 頁: 995   2011年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.2.4.0_995_1

    CiNii Research

  257. 22aJA-6 偏極^3He中性子スピンフィルターのガラスセルの開発IV(22aJA X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    坂口 佳史, 吉良 弘, 奥 隆之, 篠原 武尚, 鈴木 淳市, 酒井 健二, 中村 充孝, 鈴谷 賢太郎, 相澤 一也, 新井 正敏, 武田 全康, 遠藤 康夫, 有本 靖, 猪野 隆, 清水 裕彦, 神山 崇, 大山 研司, 平賀 晴弘, 山田 和芳, 張 烈錚, 尾原 幸治, 加倉井 和久

    日本物理学会講演概要集   66.2.4 巻 ( 0 ) 頁: 983   2011年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.2.4.0_983_2

    CiNii Research

  258. 16aSD-7 J-PARC MLFでのドップラーシフターを用いた超冷中性子の生成III(16aSD ニュートリノ・Bの物理・中性子EDM,素粒子実験領域)

    今城 想平, 藤岡 宏之, 清水 裕彦, 三島 賢ニ, 吉岡 瑞樹, 北口 雅暁, 日野 正裕

    日本物理学会講演概要集   66.2.1 巻 ( 0 ) 頁: 15   2011年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.2.1.0_15_1

    CiNii Research

  259. 25aTN-6 J-PARC偏極度解析中性子分光器計画の現状(25aTN X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    大山 研司, 岩佐 和晃, 伊藤 晋一, 横尾 哲也, 平賀 晴弘, 藤田 全基, 松浦 直人, 佐藤 豊人, 堀金 和正, 佐藤 卓, 富安 啓輔, 有馬 孝尚, 猪野 隆, 吉良 弘, 坂口 佳史, 奥 隆之, 有本 靖, 鈴木 淳市, 清水 裕彦, 武田 全康, 金子 耕士, 日野 正裕, 武藤 豪, 野尻 浩之

    日本物理学会講演概要集   66.1.4 巻 ( 0 ) 頁: 952   2011年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.1.4.0_952_2

    CiNii Research

  260. 28aGB-8 中性子電気双極子モーメント測定実験のための高密度超冷中性子輸送法の開発(28aGB ニュートリノ・中性子・その他,素粒子実験領域)

    北口 雅暁, 吉岡 瑞樹, 三島 賢二, 有本 靖, 竹谷 薫, 猪野 隆, 武藤 豪, 清水 裕彦, 岩下 芳久, 今城 想平, 神谷 好朗, 山下 了, 旭 耕一郎, 吉見 彰洋, 嶋 達志

    日本物理学会講演概要集   66.1.1 巻 ( 0 ) 頁: 31   2011年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.1.1.0_31_3

    CiNii Research

  261. 28aGB-7 J-PARC MLFでのドップラーシフターを用いた超冷中性子の生成II(28aGB ニュートリノ・中性子・その他,素粒子実験領域)

    今城 想平, 藤岡 宏之, 清水 裕彦, 三島 賢二, 吉岡 瑞樹, 北口 雅暁, 日野 正裕

    日本物理学会講演概要集   66.1.1 巻 ( 0 ) 頁: 31   2011年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.66.1.1.0_31_2

    CiNii Research

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

    Osawa R., Akiyama M., Shimizu H.

    Allergology International   60 巻 ( 1 ) 頁: 1 - 9   2011年

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    出版者・発行元: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

    Scopus

  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)   17 巻   頁: 20 - 29   2011年

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    出版者・発行元: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

    Web of Science

    Scopus

  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     頁: 427 - 429   2010年12月

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    出版者・発行元: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.

    Scopus

  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   20 巻 ( 3 ) 頁: 842 - 845   2010年6月

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    出版者・発行元: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

    Web of Science

    Scopus

  266. J-PARCにおける中性子基礎物理

    清水 裕彦

    波紋   20 巻 ( 1 ) 頁: 25 - 29   2010年

     詳細を見る

    記述言語:日本語   出版者・発行元:日本中性子科学会  

    <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

    CiNii Research

  267. 13aSK-8 J-PARC MLFでのドップラーシフターを用いた超冷中性子の生成(13aSK LFV検出器・中性子実験・光検出器,素粒子実験領域)

    今城 想平, 藤岡 宏之, 清水 裕彦, 三島 賢二, 吉岡 瑞樹, 北口 雅暁, 日野 正裕

    日本物理学会講演概要集   65.2.1 巻 ( 0 ) 頁: 18   2010年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.65.2.1.0_18_1

    CiNii Research

  268. 23pHT-7 偏極^3He中性子スピンフィルターのガラスセルの開発(23pHT X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    坂口 佳史, 吉良 弘, 奥 隆之, 鈴木 淳市, 中村 充孝, 新井 正敏, 遠藤 康夫, 加倉井 和久, 武田 全康, 脇本 秀一, 山崎 大, 小泉 智, 有本 靖, 猪野 隆, 清水 裕彦, 神山 崇, 大山 研司, 平賀 晴弘, 堤 健之, 山田 和芳

    日本物理学会講演概要集   65.1.4 巻 ( 0 ) 頁: 1016   2010年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.65.1.4.0_1016_3

    CiNii Research

  269. 23aEF-4 focusing VCN-SANSによる水溶性3ブロック共重合体(PEO-PPO-PEO)溶液の温度相転移現象の観測(23aEF 高分子・ゲル,領域12(ソフトマター物理,化学物理,生物物理))

    山田 雅子, 岩下 芳久, 金谷 利治, 市川 雅浩, 頓宮 拓, 清水 裕彦, 山田 悟史, 三島 賢二, 広田 克也, 日野 正裕, 北口 雅暁

    日本物理学会講演概要集   65.1.2 巻 ( 0 ) 頁: 396   2010年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.65.1.2.0_396_3

    CiNii Research

  270. 22pBF-4 J-PARCにおける超冷中性子生成のためのドップラーシフターの開発(22pBF 加速器電源・J-PARC・中性子源・FFAG加速器(電源・負荷・配線の対称化),ビーム物理領域)

    今城 想平, 藤岡 宏之, 清水 裕彦, 三島 賢二, 吉岡 瑞樹, 北口 雅暁, 日野 正裕

    日本物理学会講演概要集   65.1.1 巻 ( 0 ) 頁: 142   2010年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.65.1.1.0_142_3

    CiNii Research

  271. 23pHT-8 偏極^3He中性子スピンフィルターの^3Heガス偏極度の評価手段の開発(23pHT X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン))

    吉良 弘, 坂口 佳史, 奥 隆之, 鈴木 淳市, 中村 充孝, 新井 正敏, 遠藤 康夫, 加倉井 和久, 有本 靖, 猪野 隆, 清水 裕彦, 神山 崇, 佐藤 他加志, 佐藤 孝一, 加美山 隆, 鬼柳 善明, 堤 健之, 大山 研司, 平賀 晴弘, 山田 和芳

    日本物理学会講演概要集   65.1.4 巻 ( 0 ) 頁: 1016   2010年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.65.1.4.0_1016_4

    CiNii Research

  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     頁: 263 - 265   2009年12月

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    出版者・発行元: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.

    Scopus

  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   404 巻 ( 17 ) 頁: 2629 - 2632   2009年9月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   600 巻 ( 1 ) 頁: 129 - 131   2009年2月

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    出版者・発行元: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

    Scopus

  275. 13aSA-1 重力場による超冷中性子の量子状態観測 : ILL/PF2における実験結果I(中性子,カシミール力,ポジトロニウム,素粒子論領域)

    市川 豪, 川崎 真介, 駒宮 幸男, 神谷 好郎, 佐貫 智行, 清水 裕彦, 日野 正裕, 北口 雅暁

    日本物理学会講演概要集   64.2.1 巻 ( 0 ) 頁: 27   2009年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.2.1.0_27_2

    CiNii Research

  276. 13aSA-2 重力場による超冷中性子の量子状態観測 : ILL/PF2における実験結果II(中性子,カシミール力,ポジトロニウム,素粒子論領域)

    川崎 真介, 市川 豪, 駒宮 幸男, 神谷 好郎, 佐貫 智行, 清水 裕彦, 日野 正裕, 北口 雅暁

    日本物理学会講演概要集   64.2.1 巻 ( 0 ) 頁: 27   2009年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.2.1.0_27_3

    CiNii Research

  277. 27aSB-8 J-PARC BL05ビームライン用スピンフリップチョッパー(ビームライン,27aSB 素粒子実験領域,ビーム物理領域合同,素粒子実験領域)

    北口 雅暁, 日野 正裕, 三島 賢二, 竹谷 薫, 吉岡 瑞樹, 武藤 豪, 猪野 隆, 清水 裕彦, 嶋 達志, 酒井 健二, 關 義親, 舟橋 春彦, 佐藤 広海, 広田 克也, 大竹 淑恵, 音野 瑛俊, 山下 了, 鈴木 善明, 佐貫 智行

    日本物理学会講演概要集   64.1.1 巻 ( 0 ) 頁: 25   2009年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_1

    CiNii Research

  278. 30aRE-12 J-PARC BL05中性子光学・基礎物理実験装置の現状(30aRE X線・粒子線(中性子),領域10(誘電体,格子欠陥,X線・粒子線,フォノン物性))

    酒井 健二, 武藤 豪, 猪野 隆, 吉岡 瑞樹, 三島 賢二, 竹谷 薫, 清水 裕彦

    日本物理学会講演概要集   64.1.4 巻 ( 0 ) 頁: 975   2009年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.1.4.0_975_1

    CiNii Research

  279. 27pYK-8 偏極^3He中性子スピンフィルターの開発 その1(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    有本 靖, 猪野 隆, 清水 裕彦, 神山 崇, 吉良 弘, 坂口 佳史, 奥 隆之, 鈴木 淳市, 中村 充孝, 新井 正敏, 遠藤 康夫, 加倉井 和久, 大山 研司, 平賀 晴弘, 山田 和芳

    日本物理学会講演概要集   64.2.4 巻 ( 0 ) 頁: 882   2009年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.2.4.0_882_2

    CiNii Research

  280. 27pYK-2 J-PARC中性子光学・基礎物理ビームラインの現状報告(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    猪野 隆, 三島 賢二, 竹谷 薫, 吉岡 瑞樹, 有本 靖, 武藤 豪, 清水 裕彦, 音野 瑛俊, 生出 秀行, 久保田 隆至, 山下 了, 鈴木 善明, 佐貫 智行, 酒井 健二, 鈴木 淳市, 奥 隆之, 篠原 武尚, 北口 雅暁, 日野 正裕, 山田 雅子, 岩下 芳久, 嶋 達志, 關 義親, 舟橋 春彦, 広田 克也, 大竹 淑恵

    日本物理学会講演概要集   64.2.4 巻 ( 0 ) 頁: 881   2009年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.2.4.0_881_1

    CiNii Research

  281. 27pYK-10 偏極^3He中性子スピンフィルターの開発 その3(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    坂口 佳史, 吉良 弘, 奥 隆之, 鈴木 淳市, 中村 充孝, 新井 正敏, 遠藤 康夫, 加倉井 和久, 武田 全康, 脇本 秀一, 山崎 大, 小泉 智, 有本 靖, 猪野 隆, 清水 裕彦, 神山 崇, 大山 研司, 平賀 晴弘, 山田 和芳

    日本物理学会講演概要集   64.2.4 巻 ( 0 ) 頁: 882   2009年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.2.4.0_882_4

    CiNii Research

  282. 27aSG-6 J-PARC BL05における中性子散乱断面積精密測定による未知相互作用探索計画(27aSG 中性子の物理,ニュートリノ検出器,素粒子実験領域)

    嶋 達志, 清水 裕彦, 猪野 隆, 三島 賢二, 竹谷 薫, 吉岡 瑞樹, 武藤 豪, 舟橋 春彦, 北口 雅暁, 日野 正裕, 關 義親, 広田 克也, 大竹 淑恵, 酒井 健二, 鈴木 淳市, 奥 隆之, 篠原 武尚, 音野 瑛俊, 山下 了, 鈴木 善明, 佐貫 智行

    日本物理学会講演概要集   64.1.1 巻 ( 0 ) 頁: 25   2009年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_4

    CiNii Research

  283. 27aSG-3 可変六極磁石による極冷中性子集束実験(27aSG 中性子の物理,ニュートリノ検出器,素粒子実験領域)

    山田 雅子, 岩下 芳久, 市川 雅浩, 杉本 貴則, 頓宮 拓, 藤澤 博, 清水 裕彦, 猪野 隆, 三島 賢二, 竹谷 薫, 吉岡 瑞樹, 武藤 豪, 奥 隆之, 鈴木 淳市, 広田 克也, 關 義親, 川崎 真介, 神谷 好郎, 音野 瑛俊

    日本物理学会講演概要集   64.1.1 巻 ( 0 ) 頁: 25   2009年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_3

    CiNii Research

  284. 27aSE-14 重力に束縛された超冷中性子の量子状態観測実験 : ILLでの実験に向けて(27aSE CP対称性の破れ,Bの物理,Kの物理,ポジトロニウム,素粒子実験領域)

    市川 豪, 川崎 真介, 駒宮 幸男, 神谷 好郎, 佐貫 智行, 清水 裕彦, 日野 正裕, 北口 雅暁

    日本物理学会講演概要集   64.1.1 巻 ( 0 ) 頁: 25   2009年

     詳細を見る

    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.64.1.1.0_25_2

    CiNii Research

  285. J-PARC UCN Taskforce

    清水 裕彦, 山下 了

    Summary of the J-PARC UCN Taskforce E-Print ArXiv0907.0515     2009年

     詳細を見る

  286. Fundamental science for neutrons

    Shimizu H.

    International Journal of Phytoremediation   19 巻 ( 4 ) 頁: 43 - 44   2009年

     詳細を見る

    出版者・発行元: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

    Scopus

  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年12月

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    出版者・発行元: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

    Scopus

  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   278 巻 ( 3 ) 頁: 647 - 651   2008年12月

     詳細を見る

    出版者・発行元: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

    Scopus

  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   18 巻 ( 2 ) 頁: 957 - 960   2008年6月

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    出版者・発行元: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

    Web of Science

    Scopus

  290. 超伝導トンネル接合素子を用いたテラヘルツ波検出器アレイの開発とイメージング応用

    有吉 誠一郎, 大谷 知行, ドブロユ アドリアン, 佐藤 広海, 田井野 徹, 松尾 宏, 清水 裕彦

    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity   78 巻   頁: 62   2008年5月

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    記述言語:日本語  

    CiNii Research

  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   19 巻 ( 3 )   2008年3月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   586 巻 ( 1 ) 頁: 73 - 76   2008年2月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   175 巻 ( SUPPL.: COMPLETE ) 頁: 237 - 240   2008年1月

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    出版者・発行元: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

    Web of Science

    Scopus

  294. 微細孔形成技術を利用した中性子検出用MSGCの開発

    藤田 薫, 高橋 浩之, 猪野 隆, 清水 裕彦, 岸本 俊二, 古坂 道弘, 奥 隆之, 鈴木 淳市

    日本原子力学会 年会・大会予稿集   2008f 巻 ( 0 ) 頁: 131 - 131   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本原子力学会  

    新たな配線技術を利用した中性子検出に向けたマイクロストリップガス比例計数管(MSGC)の開発を行った。1mmのアノードピッチと同等の間隔で基板を貫通する微細孔を形成し、その孔を通して信号を取り出せるMSGCの製作を行い動作を確認した。

    DOI: 10.11561/aesj.2008f.0.131.0

    CiNii Research

  295. 中性子光学・基礎物理ビームライン (J-PARC BL05)

    清水 裕彦

    波紋   18 巻 ( 3 ) 頁: 151 - 154   2008年

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    出版者・発行元:日本中性子科学会  

    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

    CiNii Research

  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     頁: 618 - 618   2008年

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  297. 23aSJ-10 重力場による超冷中性子の量子状態観測 : 冷中性子を用いた測定器の性能評価(23aSJ 半導体検出器,素粒子実験領域)

    市川 豪, 川崎 真介, 駒宮 幸男, 神谷 好郎, 佐貫 智行, 清水 裕彦, 日野 正裕, 北口 雅暁

    日本物理学会講演概要集   63.2.1 巻 ( 0 ) 頁: 22   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_22_4

    CiNii Research

  298. 23aSJ-9 重力場による超冷中性子の量子状態観測 : ILLでの超冷中性子照射試験について(23aSJ 半導体検出器,素粒子実験領域)

    川崎 真介, 市川 豪, 駒宮 幸男, 神谷 好郎, 佐貫 智行, 清水 裕彦, 日野 正裕, 北口 雅暁

    日本物理学会講演概要集   63.2.1 巻 ( 0 ) 頁: 22   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_22_3

    CiNii Research

  299. 23pSM-2 J-PARCパルス中性子を用いた中性子干渉実験(23pSM 中性子実験,素粒子実験領域)

    北口 雅暁, 日野 正裕, 關 義親, 舟橋 春彦, 三島 賢二, 猪野 隆, 竹谷 薫, 吉岡 瑞樹, 武藤 豪, 森嶋 隆裕, 清水 裕彦, 嶋 達志, 佐藤 広海, 広田 克也, 大竹 淑恵, 酒井 健二

    日本物理学会講演概要集   63.2.1 巻 ( 0 ) 頁: 23   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_23_4

    CiNii Research

  300. 26pZL-2 冷中性子集束用の強度変調型永久六極磁石の開発(ビーム診断,ビーム制御,ビーム物理領域)

    山田 雅子, 市川 雅浩, 岩下 芳久, 田島 裕二郎, 頓宮 拓, 猪野 隆, 清水 裕彦, 武藤 豪

    日本物理学会講演概要集   63.1.1 巻 ( 0 ) 頁: 131   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.1.1.0_131_2

    CiNii Research

  301. 24pWG-11 多重連結六極磁石による白色中性子の集光と応用(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    鈴木 淳市, 奥 隆之, 篠原 武尚, 大場 洋次郎, 菊地 隆之, 清水 裕彦

    日本物理学会講演概要集   63.1.4 巻 ( 0 ) 頁: 931   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.1.4.0_931_2

    CiNii Research

  302. 24pWG-10 熱中性子による即発γ線を用いた2-3次元元素分布測定システムの開発(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    瀬川 麻里子, 松江 秀明, 山田 悟, 篠原 武尚, 奥 隆之, 笹尾 一, 鈴木 淳市, 清水 裕彦

    日本物理学会講演概要集   63.1.4 巻 ( 0 ) 頁: 931   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.1.4.0_931_1

    CiNii Research

  303. 23pSM-6 パルス冷中性子集束用の強度変調型永久六極磁石の開発II(23pSM 中性子実験,素粒子実験領域)

    山田 雅子, 岩下 芳久, 市川 雅浩, 杉本 貴則, 頓宮 拓, 藤澤 博, 清水 裕彦, 猪野 隆, 三島 賢二, 竹谷 薫, 吉岡 瑞樹, 武藤 豪, 森嶋 隆裕, 奥 隆之, 鈴木 淳市, 篠原 武尚, 酒井 健二, 佐藤 広海, 広田 克也, 大竹 淑惠, 關 義親, 川崎 真介, 駒宮 幸男, 神谷 好郎, 音野 瑛俊, 山下 了

    日本物理学会講演概要集   63.2.1 巻 ( 0 ) 頁: 24   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_24_2

    CiNii Research

  304. 23pSM-5 極冷中性子干渉計の開発(23pSM 中性子実験,素粒子実験領域)

    關 義親, 北口 雅暁, 日野 正裕, 舟橋 春彦, 三島 賢二, 猪野 隆, 竹谷 薫, 吉岡 瑞樹, 武藤 豪, 森嶋 隆裕, 清水 裕彦, 佐貫 智行, 鈴木 善明, 嶋 達志, 佐藤 宏海, 広田 克也, 大竹 淑恵, 川崎 真介, 駒宮 幸男, 神谷 好郎, 音野 瑛俊, 山下 了

    日本物理学会講演概要集   63.2.1 巻 ( 0 ) 頁: 24   2008年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.63.2.1.0_24_1

    CiNii Research

  305. J‐PARCで迎える結晶学の新展開  1.J‐PARCで展開される中性子科学  中性子基盤研究開発

    曽山 和彦, 清水 裕彦, 大友 季哉

    日本結晶学会誌   50 巻 ( 1 ) 頁: 66 - 71   2008年

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    記述言語:日本語   出版者・発行元:日本結晶学会  

    DOI: 10.5940/jcrsj.50.66

    CiNii Research

  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     頁: 2392 - 2394   2008年

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    出版者・発行元: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   463 巻 ( SUPPL. ) 頁: 1119 - 1122   2007年10月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   915 巻   頁: 202 - 205   2007年9月

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    出版者・発行元: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

    Scopus

  309. Spin-selective neutron optics for neutron fundamental physics

    Shimizu H.

    AIP Conference Proceedings   915 巻   頁: 197 - 201   2007年9月

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    出版者・発行元:AIP Conference Proceedings  

    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

    Scopus

  310. マイクロパターンガス検出器の開発状況 : 東京大学におけるMSGC開発について

    藤田 薫, 高橋 浩之, 二河 久子, 高田 夕佳, 猪野 隆, 清水 裕彦, 岸本 俊二, 奥 隆之, 鈴木 淳市, 古坂 道弘, 金沢 正和

    電気学会研究会資料. NE, 原子力研究会   2007 巻 ( 1 ) 頁: 1 - 4   2007年9月

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    記述言語:日本語  

    CiNii Research

  311. CS-7-9 ファイバー通信波長帯(1.5μm)における超伝導トンネル接合を用いた単一光子検出器(CS-7.単一光子検出技術-量子通信を目指して,シンポジウム)

    志岐 成友, 佐藤 広海, 清水 裕彦

    電子情報通信学会総合大会講演論文集   2007 巻 ( 2 ) 頁: "S - 31"-"S-32"   2007年3月

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    記述言語:日本語   出版者・発行元:一般社団法人電子情報通信学会  

    CiNii Research

  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   90 巻 ( 3 ) 頁: 566 - 569   2007年3月

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    記述言語:英語   出版者・発行元:一般社団法人電子情報通信学会  

    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.

    CiNii Research

  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   310 巻 ( 2 ) 頁: E974 - E976   2007年3月

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    出版者・発行元: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

    Web of Science

    Scopus

  314. パルス六極電磁石による中性子集光実験結果とシミュレーションとの比較

    岩下 秀徳, 岩佐 浩克, 平賀 富士夫, 加美山 隆, 鬼柳 善明, 鈴木 淳市, 篠原 武尚, 奥 隆之, 清水 裕彦

    日本原子力学会 年会・大会予稿集   2007f 巻 ( 0 ) 頁: 182 - 182   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本原子力学会  

    本研究では、北大45MeV Linacに設置された中性子パルス磁気レンズのテスト機の性能を評価することを目的として、粒子輸送モンテカルロコードであるPHITSを用いてシミュレーションを行った。実験結果とシミュレーション結果の比較を行ったところ、焦点でのビームサイズがほぼ一致し、集束条件を満たす波長範囲についてもほぼ一致した。さらに、実験では施設の関係で行うことのできない焦点距離をさらに長く設定した場合についてのシミュレーションを行い、その性能を明らかにした。

    DOI: 10.11561/aesj.2007f.0.182.0

    CiNii Research

  315. MSGCのカソード形状による電荷分割法の位置分解能評価

    藤田 薫, 高橋 浩之, 二河 久子, 高田 夕佳, 猪野 隆, 清水 裕彦, 岸本 俊二, 古坂 道弘, 金沢 正和

    日本原子力学会 年会・大会予稿集   2007f 巻 ( 0 ) 頁: 106 - 106   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本原子力学会  

    マイクロストリップガス比例計数管のカソードの形状に工夫を施すことで放射線の位置特定を行うことができる。具体的にはカソードを2つの噛合った櫛状にパターニングし、それらの櫛の幅を変えておくことで、入射位置によって信号の大きさの比が変化する。現在、すでに長さ32mmの範囲で1.6mm程度の分解能が得られることを確認しているが、さらに高い位置分解能を得るために櫛の幅や周期などの最適化を行いその分解能を評価した。

    DOI: 10.11561/aesj.2007f.0.106.0

    CiNii Research

  316. MS-tubeの中性子検出特性

    藤田 薫, 高橋 浩之, 二河 久子, 西 広佑, 高田 夕佳, 古坂 道弘, 猪野 隆, 清水 裕彦, 岸本 俊二, 奥 隆之, 鈴木 淳市, 豊川 秀訓, 金沢 正和

    日本原子力学会 年会・大会予稿集   2007s 巻 ( 0 ) 頁: 72 - 72   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本原子力学会  

    有感長さ64cmのMSGC基板をパイプに封入して比例計数管として動作させることで、従来よりも高速、高位置分解能な比例計数管が実現可能である。本報告では、He-3をコンバータとして中性子検出器として動作させたときの位置検出特性などの動作特性について発表を行う。

    DOI: 10.11561/aesj.2007s.0.72.0

    CiNii Research

  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   915 巻   頁: 202 - +   2007年

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  318. 21pRE-13 強磁場中における金属薄膜のα線に対する阻止能変化の測定(放射線物理(エネルギー付与過程),領域1,原子・分子,量子エレクトロニクス,放射線物理)

    伊東 宏之, 満田 史織, 森田 昭夫, 市川 雅浩, 田島 裕二郎, 清水 裕彦, 吉村 浩司, 戸崎 充男, 岩下 芳久

    日本物理学会講演概要集   62.2.2 巻 ( 0 ) 頁: 156   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.2.2.0_156_3

    CiNii Research

  319. 21aTC-3 四極磁石型中性子偏極デバイスの開発と集光型中性子小角散乱実験への応用(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    奥 隆之, 篠原 武尚, 菊地 隆之, 大場 洋次郎, 岩瀬 裕希, 小泉 智, 鈴木 淳市, 清水 裕彦

    日本物理学会講演概要集   62.2.4 巻 ( 0 ) 頁: 970   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.2.4.0_970_3

    CiNii Research

  320. 21aTC-2 中性子収束用薄膜フレネルレンズの開発(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    猪野 隆, 安達 智宏, 篠原 武尚, 清水 裕彦, 広田 克也, 武藤 豪

    日本物理学会講演概要集   62.2.4 巻 ( 0 ) 頁: 970   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.2.4.0_970_2

    CiNii Research

  321. 21aTC-1 中性子ビーム偏極集光磁気レンズの開発3 : 永久磁石による四極磁気レンズのビーム実験(X線・粒子線(中性子),領域10,誘電体,格子欠陥,X線・粒子線,フォノン物性)

    武藤 豪, 猪野 隆, 岩下 芳久, 奥 隆之, 金子 直勝, 川合 將義, 小林 庸男, 下ヶ橋 秀典, 佐藤 節夫, 篠原 武尚, 清水 裕彦, 鈴木 淳市, 田原 俊央, 広田 克也, 森嶋 隆裕

    日本物理学会講演概要集   62.2.4 巻 ( 0 ) 頁: 970   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.2.4.0_970_1

    CiNii Research

  322. 19aXB-9 中性子ビーム用デバイスのための曲面スーパーミラーの開発(X線・粒子線(中性子),領域10,誘導体,格子欠陥,X線・粒子線,フォノン物性)

    池田 一昭, 広田 克也, 佐藤 広海, 大森 整, 清水 裕彦, 古坂 道弘

    日本物理学会講演概要集   62.1.4 巻 ( 0 ) 頁: 949   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_4

    CiNii Research

  323. 19aXB-8 多重連結型複合六極磁石による白色パルス中性子集光の原理実鉦(X線・粒子線(中性子),領域10,誘導体,格子欠陥,X線・粒子線,フォノン物性)

    鈴木 淳市, 奥 隆之, 篠原 武尚, 清水 裕彦

    日本物理学会講演概要集   62.1.4 巻 ( 0 ) 頁: 949   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_3

    CiNii Research

  324. 19aXB-7 パルス六極電磁石による中性子ビーム集光(X線・粒子線(中性子),領域10,誘導体,格子欠陥,X線・粒子線,フォノン物性)

    篠原 武尚, 岩下 秀徳, 鈴木 淳市, 奥 隆之, 加美山 隆久, 岩佐 浩克, 平賀 富士夫, 鬼柳 善明, 佐藤 孝一, 清水 裕彦

    日本物理学会講演概要集   62.1.4 巻 ( 0 ) 頁: 949   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_2

    CiNii Research

  325. 19aXB-6 中性子ビーム偏極集光磁気レンズの開発2 : 永久磁石による四極磁気レンズと可変六極磁気レンズの試作(X線・粒子線(中性子),領域10,誘導体,格子欠陥,X線・粒子線,フォノン物性)

    猪野 隆, 岩下 芳久, 奥 隆之, 金子 直勝, 川合 將義, 小林 庸男, 下ヶ橋 秀典, 佐藤 節夫, 篠原 武尚, 清水 裕彦, 鈴木 淳市, 田原 俊央, 広田 克也, 武藤 豪, 森崎 隆裕

    日本物理学会講演概要集   62.1.4 巻 ( 0 ) 頁: 949   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_949_1

    CiNii Research

  326. 19aXB-5 中性子ビーム偏極集光磁気レンズの開発1 : 永久磁石による四極磁気レンズと可変六極磁気レンズの設計(X線・粒子線(中性子),領域10,誘導体,格子欠陥,X線・粒子線,フォノン物性)

    猪野 隆, 岩下 芳久, 奥 隆之, 金子 直勝, 川合 將義, 小林 庸男, 下ヶ橋 秀典, 佐藤 節夫, 篠原 武尚, 清水 裕彦, 鈴木 淳市, 田原 俊央, 広田 克也, 武藤 豪, 森嶋 隆裕

    日本物理学会講演概要集   62.1.4 巻 ( 0 ) 頁: 948   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.1.4.0_948_4

    CiNii Research

  327. 24aZG-2 超強力永久磁石を用いた強度可変多極磁石の磁場測定(24aZG ビーム制御,イオン加速器,レーザープラズマ相互作用,ビーム物理領域)

    市川 雅浩, 岩下 芳久, 田島 裕二郎, 頓宮 拓, 猪野 隆, 清水 裕彦, 武藤 豪

    日本物理学会講演概要集   62.2.1 巻 ( 0 ) 頁: 133   2007年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.62.2.1.0_133_2

    CiNii Research

  328. Spin-selective neutron optics for neutron fundamental physics

    Shimizu H. M.

    PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM   915 巻   頁: 197 - 201   2007年

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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   55 巻 ( 2 )   2006年12月

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    出版者・発行元:Polymer Preprints, Japan  

    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.

    Scopus

  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年12月

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    出版者・発行元: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

    Scopus

  331. Applications of neutron refractive optical devices

    Shimizu H.

    Physica B: Condensed Matter   385-386 巻   頁: 989 - 994   2006年11月

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    出版者・発行元: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

    Scopus

  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   385-86 巻   頁: 1229 - 1231   2006年11月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   55 巻 ( 1 )   2006年10月

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    出版者・発行元:Polymer Preprints, Japan  

    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.

    Scopus

  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   445 巻 ( 1-2 ) 頁: 1095 - 1098   2006年10月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   564 巻 ( 1 ) 頁: 378 - 394   2006年8月

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    出版者・発行元: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

    Web of Science

    Scopus

  336. 低速中性子光学

    清水 裕彦

    加速器   3 巻 ( 2 ) 頁: 128 - 136   2006年7月

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    記述言語:日本語   出版者・発行元:日本加速器学会  

    DOI: 10.50868/pasj.3.2_128

    CiNii Research

  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   16 巻 ( 2 ) 頁: 362 - 365   2006年6月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   88 巻 ( 20 )   2006年5月

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    出版者・発行元: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

    Web of Science

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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   559 巻 ( 2 ) 頁: 751 - 753   2006年4月

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    出版者・発行元: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

    Web of Science

    Scopus

  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   559 巻 ( 2 ) 頁: 480 - 482   2006年4月

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    出版者・発行元: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   559 巻 ( 2 ) 頁: 573 - 575   2006年4月

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    出版者・発行元: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   558 巻 ( 2 ) 頁: 547 - 550   2006年3月

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    出版者・発行元: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   339 巻 ( 2 ) 頁: 717 - 725   2006年1月

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    出版者・発行元: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. Gd系薄膜シンチレータの開発(3)

    山口 達, 春名 潤, 金子 純一, 須佐 憲三, 三浦 誠司, 八木 康洋, 川村 宗範, 奥 隆之, 藤田 文行, 本間 彰, 石橋 浩之, 澤村 晃子, 古坂 道弘, 清水 裕彦, 鬼柳 善明

    日本原子力学会 年会・大会予稿集   2006s 巻 ( 0 ) 頁: 64 - 64   2006年

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    出版者・発行元:一般社団法人 日本原子力学会  

    中性子用薄膜シンチレータへの応用を念頭に置き、ガドリニウムオルソシリケート(Gd2SiO5)、ガドリニウムパイロシリケート(Gd2Si2O7)を合成し、発光特性評価ならびに構造解析を行った。Gd2Si2O7にCeを10%ドープしたところ結晶がF構造をとり、高い発光強度を示した。

    DOI: 10.11561/aesj.2006s.0.64.0

    CiNii Research

  345. Gd系薄膜シンチレータの開発(2)

    土田 昇平, 春名 潤, 金子 純一, 須佐 憲三, 三浦 誠司, 奥 隆之, 藤田 文行, 本間 彰, 澤村 晃子, 古坂 道弘, 清水 裕彦, 鬼柳 善明

    日本原子力学会 年会・大会予稿集   2006s 巻 ( 0 ) 頁: 65 - 65   2006年

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    出版者・発行元:一般社団法人 日本原子力学会  

    中性子散乱実験等への適用を目指し、厚さ30μm程度のGd系薄膜シンチレータの開発を目指している。本研究においてはGSO系粉体シンチレータを焼結することで薄膜化を試みた。焼結によりGSO(Gd2SiO5)は発光能力を失ったもののGPS(Gd2Si2O7)は発光能力を維持し、非常に丈夫で透明度の高い薄膜シンチレータの製作に成功した。

    DOI: 10.11561/aesj.2006s.0.65.0

    CiNii Research

  346. 20aSF-4 4重極磁石を用いた高偏極中性子ビームの生成と基礎物理への応用(20aSF 対称性・基礎物理・核モーメント,実験核物理領域)

    山田 悟, 奥 隆之, 三島 賢二, 佐藤 広海, 広田 克也, 森嶋 隆裕, 大野 雅史, 篠原 武尚, 鈴木 淳市, 清水 裕彦

    日本物理学会講演概要集   61.2.1 巻 ( 0 ) 頁: 29   2006年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.61.2.1.0_29_2

    CiNii Research

  347. 30aWD-5 超伝導転移端温度計(TES)を用いた低エネルギー粒子線検出器の開発(3)(30aWD 対称性・基礎物理,実験核物理領域)

    大野 雅史, 佐藤 広海, 森嶋 隆裕, 三島 賢二, 池田 時浩, 山田 悟, 清水 裕彦

    日本物理学会講演概要集   61.1.1 巻 ( 0 ) 頁: 73   2006年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.61.1.1.0_73_1

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  348. 30pXD-7 多重積層放物面型熱中性子収束光学素子の集光特性(30pXD X線・粒子線(中性子・粒子線),領域10(誘電体,格子欠陥,X線・粒子線,フォノン物性))

    池田 一昭, 篠原 武尚, 広田 克也, 佐藤 広海, 清水 裕彦, 日野 正裕, 奥 隆之, 鈴木 淳市, 曽山 和彦, 大山 研司, 平賀 晴弘

    日本物理学会講演概要集   61.1.4 巻 ( 0 ) 頁: 965   2006年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.61.1.4.0_965_3

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  349. 30pXD-6 Aharonov-Casher効果精密測定のためのJamin型多層膜冷中性子干渉計の開発(30pXD X線・粒子線(中性子・粒子線),領域10(誘電体,格子欠陥,X線・粒子線,フォノン物性))

    関 義親, 舟橋 春彦, 竹谷 薫, 日野 正裕, 北口 雅暁, 大竹 淑恵, 清水 裕彦

    日本物理学会講演概要集   61.1.4 巻 ( 0 ) 頁: 965   2006年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.61.1.4.0_965_2

    CiNii Research

  350. 30pXD-5 磁場勾配を用いた中性子スピン偏極デバイスの開発(30pXD X線・粒子線(中性子・粒子線),領域10(誘電体,格子欠陥,X線・粒子線,フォノン物性))

    奥 隆之, 山田 悟, 鈴木 淳市, 三島 賢二, 篠原 武尚, 池田 一昭, 広田 克也, 佐藤 広海, 清水 裕彦

    日本物理学会講演概要集   61.1.4 巻 ( 0 ) 頁: 965   2006年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.61.1.4.0_965_1

    CiNii Research

  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     頁: 282 - 285   2006年

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    出版者・発行元: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)   43 巻   頁: 1319 - 1321   2006年

  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     頁: 395 - 395   2006年

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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   38 巻 ( 6 ) 頁: 1035 - 1037   2005年12月

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    出版者・発行元: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   1 巻   頁: 263 - 264   2005年12月

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    出版者・発行元: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.

    Scopus

  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   54 巻 ( 2 ) 頁: 4881 - 4882   2005年12月

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    出版者・発行元:Polymer Preprints, Japan  

    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.

    Scopus

  357. 高温超伝導薄膜線材を使った中性子収束用6極マグネットの開発

    小柳 圭, 戸坂 泰造, 小野 通隆, 栗山 透, 渡辺 郁男, 土屋 清澄, 鈴木 淳市, 安達 智宏, 清水 裕彦

    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity   73 巻   頁: 246   2005年11月

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    記述言語:日本語  

    CiNii Research

  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   20 巻 ( 29 ) 頁: 6890 - 6893   2005年11月

  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   20 巻 ( 29 ) 頁: 6903 - 6905   2005年11月

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    出版者・発行元:International Journal of Modern Physics A  

    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   20 巻 ( 29 ) 頁: 6872 - 6874   2005年11月

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    出版者・発行元: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   426 巻 ( II ) 頁: 1731 - 1735   2005年10月

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    出版者・発行元: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, M; Takahashi, Y; Shaké, I; Oda, M; Shimizu, HM; Masaike, A; Yabuzaki, T

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   74 巻 ( 9 ) 頁: 2622 - 2630   2005年9月

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    記述言語:英語   出版者・発行元:一般社団法人 日本物理学会  

    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 N2 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. ©2005 The Physical Society of Japan.

    DOI: 10.1143/JPSJ.74.2622

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    CiNii Research

  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   175 巻 ( 2 ) 頁: 235 - 241   2005年8月

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    出版者・発行元: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   15 巻 ( 2 ) 頁: 591 - 594   2005年6月

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    出版者・発行元: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   15 巻 ( 2 ) 頁: 606 - 608   2005年6月

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    出版者・発行元: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   15 巻 ( 2 ) 頁: 920 - 923   2005年6月

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    出版者・発行元: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

    Web of Science

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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   15 巻 ( 2 ) 頁: 595 - 598   2005年6月

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    出版者・発行元: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   15 巻 ( 2 PART I ) 頁: 599 - 601   2005年6月

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    出版者・発行元:IEEE Transactions on Applied Superconductivity  

    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

    Scopus

  369. 中性子磁気レンズ用Nb_3Snコイルの開発(2)

    岡本 佳祐, 中村 一也, 関 佳隆, 大野 雅人, 高尾 智明, 大内 徳人, 新冨 孝和, 土屋 清澄, 安達 智宏, 清水 裕彦, 奥隆 之, 鈴木 淳市, 木村 諭, 花井 哲, 浦田 昌身, 渡辺 郁男

    低温工学・超電導学会講演概要集 = Meetings of Cryogenics and Superconductivity   72 巻   頁: 212   2005年5月

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    記述言語:日本語  

    CiNii Research

  370. CS-7-3 基板吸収型STJ素子を用いたTHz波検出器(CS-7. 超伝導サブテラヘルツエレクトロニクス, エレクトロニクス2)

    明連 広昭, 中野 蘭, 星野 耕一, 吉村 正太, 田井野 徹, 大谷 知行, 渋谷 孝幸, 佐藤 広海, 清水 裕彦, 高田 進, 川瀬 晃道

    電子情報通信学会総合大会講演論文集   2005 巻 ( 2 ) 頁: "S - 13"-"S-14"   2005年3月

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    記述言語:日本語   出版者・発行元:一般社団法人電子情報通信学会  

    CiNii Research

  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   86 巻 ( 8 ) 頁: 1 - 3   2005年2月

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    出版者・発行元: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   356 巻 ( 1-4 ) 頁: 121 - 125   2005年2月

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    出版者・発行元: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   356 巻 ( 1-4 ) 頁: 126 - 130   2005年2月

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    出版者・発行元: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   356 巻 ( 1-4 ) 頁: 197 - 200   2005年2月

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    出版者・発行元: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   52 巻 ( 1 ) 頁: 371 - 374   2005年2月

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    出版者・発行元: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   537 巻 ( 1-2 ) 頁: 282 - 285   2005年1月

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    出版者・発行元: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 重力場による超冷中性子の量子化状態測定 : 高位置分解能UCN測定器の開発(13pSE 超冷中性子/DAQ・トリガー,素粒子実験領域)

    川崎 真介, 佐貫 智行, 大川 英希, 園田 真也, 駒宮 幸男, 東 保男, 久米 達哉, 江波 和宏, 日野 正裕, 清水 裕彦

    日本物理学会講演概要集   60.2.1 巻 ( 0 ) 頁: 14   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.2.1.0_14_2

    CiNii Research

  378. 27aWH-3 超伝導転移端温度計(TES)を用いた低エネルギー粒子線検出器の開発(2)(検出器,実験核物理)

    大野 雅史, 佐藤 広海, 滝澤 慶之, 志岐 成友, 倉門 雅彦, 有吉 誠一郎, 三島 賢二, 池田 時浩, 清水 裕彦

    日本物理学会講演概要集   60.1.1 巻 ( 0 ) 頁: 81   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.1.1.0_81_1

    CiNii Research

  379. 27aWH-1 中性子β崩壊測定の予備実験(検出器,実験核物理)

    三島 賢二, 山田 悟, 広田 克也, 篠原 武尚, 志岐 成友, 佐藤 広海, 大野 雅史, 鈴木 淳市, 清水 裕彦

    日本物理学会講演概要集   60.1.1 巻 ( 0 ) 頁: 80   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.1.1.0_80_4

    CiNii Research

  380. 26pZA-5 SPring-8/LEPSビームラインでのπ^0,η光生成のphoton beam asymmetry の測定(中間子生成,ハドロン構造,実験核物理)

    木野 幸一, 石川 貴嗣, 岡村 憲有, 斉藤 雄高, 清水 筆, 鈴木 耕拓, 米村 博樹, 岩田 高広, 川村 知行, 田島 靖久, 吉田 浩司, 戸井 裕也, 松田 達郎, 内田 誠, 郡 英輝, 住浜 水季, 長谷川 勝一, 堀田 智明, 松村 徹, 中野 貴志, 椎野 裕樹, 藤村 寿子, 新山 雅之, 宮部 学, 村松 憲仁, 菅谷 頼仁, 大橋 裕二, 伊達 伸, 依田 哲彦, 都留 常暉

    日本物理学会講演概要集   60.1.1 巻 ( 0 ) 頁: 77   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.1.1.0_77_4

    CiNii Research

  381. 25aYS-2 放物面型多層膜スーパーミラーによる熱・冷中性子収束光学素子の開発(X線・粒子線(X線),領域10(誘電体, 格子欠陥, X線・粒子線, フォノン物性))

    池田 一昭, 安達 智宏, 篠原 武尚, 森嶋 隆裕, 広田 克也, 三島 賢二, 佐藤 広海, 清水 裕彦, 森田 晋也, 郭 建強, 鈴木 亨, 渡邉 裕, 上原 嘉宏, 林 偉民, 大森 整, 日野 正裕, 田崎 誠司, 奥 隆之, 鈴木 淳市, 曽山 和彦, 大山 研司, 平賀 晴弘

    日本物理学会講演概要集   60.1.4 巻 ( 0 ) 頁: 907   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.1.4.0_907_3

    CiNii Research

  382. 24pWJ-11 重力場による超冷中性子の量子化状態の測定装置の開発(光検出器・ニュートリノ・他,素粒子論)

    川崎 真介, 佐貫 智行, 大川 英樹, 関口 豊和, 駒宮 幸男, 日野 正裕, 清水 裕彦, 東 保夫, 久米 達哉, 江波 和宏

    日本物理学会講演概要集   60.1.1 巻 ( 0 ) 頁: 22   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.1.1.0_22_1

    CiNii Research

  383. 13pSE-3 重力場による超冷中性子の量子化状態測定 : 半導体検出器の薄膜蒸着試験(13pSE 超冷中性子/DAQ・トリガー,素粒子実験領域)

    園田 真也, 川崎 真介, 大川 英希, 駒宮 幸男, 日野 正裕, 清水 裕彦, 佐貫 智行

    日本物理学会講演概要集   60.2.1 巻 ( 0 ) 頁: 14   2005年

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    記述言語:日本語   出版者・発行元:一般社団法人 日本物理学会  

    DOI: 10.11316/jpsgaiyo.60.2.1.0_14_3

    CiNii Research

  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   7 巻   頁: 179 - 182   2005年

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    出版者・発行元:29th International Cosmic Ray Conference, ICRC 2005  

    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.

    Scopus

  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   8 巻   頁: 165 - 168   2005年

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    出版者・発行元:29th International Cosmic Ray Conference, ICRC 2005  

    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.

    Scopus

  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   8 巻   頁: 213 - 216   2005年

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    出版者・発行元:29th International Cosmic Ray Conference, ICRC 2005  

    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.

    Scopus

  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   7 巻 ( 8 ) 頁: 1836 - 1838   2005年

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    出版者・発行元:Physical Chemistry Chemical Physics  

    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     頁: 263 - 264   2005年

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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   7 巻   頁: 151 - 154   2005年

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    出版者・発行元:29th International Cosmic Ray Conference, ICRC 2005  

    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.

    Scopus

  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   75 巻   頁: 833 - 841   2019年11月

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    出版者・発行元: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)   198 巻   2019年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    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, JH ; Ahriche, A; Allard, D; Allen, L; Alonso, G; Anchordoqui, L; Anzalone, A; Arai, Y; Asano, K; Attallah, R; Attoui, H; 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, JW; Benmessai, K; Bertaina, M; Biermann, PL; Biktemerova, S; Bisconti, F; Blanc, N; Blecki, J; Blin-Bondil, S; Bobik, P; Bogomilov, M; Bozzo, E; Bruno, A; Caballero, KS; Cafagna, F; Campana, D; Capdevielle, JN; 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, MJ; Connaughton, V; Conti, L; Cordero, G; Cotto, G; Crawford, HJ; Cremonini, R; Csorna, S; Cummings, A; Dagoret-Campagne, S; Donato, C; la Taille, C; Santis, C; Peral, L; Martino, M; Djemil, T; Dutan, I; Ebersoldt, A; Ebisuzaki, T; Engel, R; Eser, J; Fenu, 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; Alvarado, C; Gorodetzky, P; Greg, R; Guarino, E; Guzman, A; Hachisu, Y; Haiduc, M; Harlov, B; Haungs, A; Carretero, J; Cruz, W; Ikeda, D; Inoue, N; Inoue, S; Isgrò, F; Itow, Y; Jammer, T; Jeong, S; Joven, E; Judd, EG; Jung, A; Jochum, J; Kajino, E; Kajino, T; Kalli, S; Kaneko, I; Karadzhov, Y; Karczmarczyk, J; Katahira, K; Kawai, K; Kawasaki, Y; Kedadra, A; Khales, H; Khrenov, BA; Kim, JS; Kim, SW; Kleifges, M; Klimov, PA; Kolev, D; Krantz, H; Kreykenbohm, I; Kudela, K; Kurihara, Y; Kusenko, A; Kuznetsov, E; Barbera, A; Lachaud, C; Lahmar, H; Lakhdari, F; Larsson, O; Lee, J; Licandro, J; Campano, L; Maccarone, MC; Mackovjak, S; Mandi, M; Maravilla, D; Marcelli, L; Marcos, JL; Marini, A; Marszal, W; Martens, K; Martin, Y; Martinez, O; Martucci, M; Masciantonio, G; Mase, K; Mustafa, M; Matev, R; Matthews, JN; Mebarki, N; Medina-Tanco, G; Mendoza, MA; Menshikov, A; Merino, A; Meseguer, J; Meyer, SS; Mimouni, J; Miyamoto, H; Mizumoto, Y; Monaco, A; Rios, JADL; Nagataki, S; Naitamor, S; Napolitano, T; Nava, R; Neronov, A; Nomoto, K; Nonaka, T; Ogawa, T; Ogio, S; Ohmori, H; Olinto, AV; Orleaniski, P; Osteria, G; Pagliaro, A; Painter, W; Panasyuk, MI; Panico, B; Parizot, E; Park, IH; Pastircak, B; Patzak, T; Paul, T; Perez-Grande, I; Perfetto, F; Peter, T; Picozza, P; Pindado, S; Piotrowski, LW; Piraino, S; Placidi, L; Plebaniak, Z; Pliego, S; Pollini, A; Polonski, Z; Popescu, EM; Prat, P; Prevot, G; Prieto, H; Puehlhofer, G; Putis, M; Rabanal, J; Radu, AA; Reyes, M; Rezazadeh, M; Ricci, M; Frias, MD; Ronga, F; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, G; Sagawa, H; Sahnoune, Z; Saito, A; Sakaki, N; Salazar, H; Balanzar, JC; Sanchez, JL; Santangelo, A; Sanz-Andres, A; Palomino, M; Saprykin, O; Sarazin, F; Sato, M; Schanz, T; Schieler, H; Scotti, V; Selmane, S; Semikoz, D; Serra, M; Sharakin, S; Shimizu, HM; Shin, HS; 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, MC; Tameda, Y; Tenzer, C; Thomas, SB; Thomson, GB; 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, JF; Vallania, P; Vankova, G; Vigorito, C; Villasenor, L; Vlcek, B; Ballmoos, P; Vrabel, M; Wada, S; Watanabe, J; Watts, J ; Weber, M; Munoz, R; Weindl, A; Wiencke, L; Willie, M; Wilms, J; Wlodarczyk, Z; Yamamoto, T; Yang, J; Yano, H; Yashin, IV; Yonetoku, D; Yoshida, S; Young, R; Zgura, IS; Zotov, MY; Marchi, AZ

    ASTROPARTICLE PHYSICS   102 巻   頁: 98 - 111   2018年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Astroparticle Physics  

    EUSO-TA is a ground-based telescope, installed at the Telescope Array (TA) site in Black Rock Mesa, Utah, USA. This is the first detector to successfully use a Fresnel lens based optical system and multi-anode photomultipliers (64 channels per tube, 2304 channels encompassing a 10.6° × 10.6° field of view) for detection of Ultra High Energy Cosmic Rays (UHECR). The telescope is located in front of one of the fluorescence detectors of the TA experiment. Since its installation in 2013, the detector has observed several ultra-high energy cosmic ray events and, in addition, meteors. The limiting magnitude of 5.5 on summed frames (∼ 3 ms) has been established. Measurements of the UV night sky emission in different conditions and moon phases and positions have been completed. The performed observations serve as a proof of concept for the future application of this detector technology.

    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; Barrón-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-Velázquez, M; Mayorov, D; Nico, JS; Okudaira, T; Paudel, C; Santra, S; Sarsour, M; Shimizu, HM; Snow, WM; Sprow, A; Steffen, K; Swanson, HE; Tovesson, F; Vanderwerp, J; Yergeau, PA

    PHYSICS LETTERS B   783 巻   頁: 227 - 233   2018年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics  

    We present a search for possible spin dependent interactions of the neutron with matter through exchange of spin 1 bosons with axial vector couplings as envisioned in possible extensions of the Standard Model. This was sought using a slow neutron polarimeter that passed transversely polarized slow neutrons by unpolarized slabs of material arranged so that interactions would tilt the plane of polarization and develop a component along the neutron momentum. The result for the rotation angle, ϕ′=[2.8±4.6(stat.)±4.0(sys.)]×10−5 rad/m is consistent with zero. This result improves the upper bounds on the neutron-matter coupling gA2 by about three orders of magnitude for force ranges in the mm– μm regime.

    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 査読有り

    Gudkov V., Shimizu H.

    Physical Review C   97 巻 ( 6 )   2018年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review C  

    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 査読有り

    Morishima Takahiro, Futamase Toshifumi, Shimizu Hirohiko M

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2018 巻 ( 6 )   2018年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Progress of Theoretical and Experimental Physics  

    The magnetic moment of free fermions in the Earth's gravitational field has been studied on the basis of general relativity. Adopting the Schwarzschild metric for the background spacetime, the dipole coupling between the magnetic moment and the magnetic field has been found to be dependent on the gravity in the calculation up to the post-Newtonian order O(1/c2). The gravity dependence can be formulated by employing the effective value of the magnetic moment as a gravity-dependent quantity μ effm = (1 + 3φ/c2) μm for the cases of minimal coupling, non-minimal coupling, and a mixture of the two. The gravitationally induced anomaly is found to be canceled in the experimental values of the anomalous magnetic moment measured in the Penning trap and storage ring methods.

    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   13 巻   2018年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1088/1748-0221/13/05/P05023

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  397. Angular distribution of γ rays from neutron-induced compound states of <SUP>140</SUP>La

    Okudaira, T; Takada, S; Hirota, K; Kimura, A; Kitaguchi, M; Koga, J; Nagamoto, K; Nakao, T; Okada, A; Sakai, K; Shimizu, HM; Yamamoto, T; Yoshioka, T

    PHYSICAL REVIEW C   97 巻 ( 3 )   2018年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Physical Review C  

    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

    Takada, S; Okudaira, T; Goto, F; Hirota, K; Kimura, A; Kitaguchi, M; Koga, J; Nakao, T; Sakai, K; Shimizu, HM; Yamamoto, T; Yoshioka, T

    JOURNAL OF INSTRUMENTATION   13 巻 ( 2 )   2018年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Instrumentation  

    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 査読有り

    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     頁: 0   2018年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  400. Cosmic ray oriented performance studies for the JEM-EUSO first level trigger

    Abdellaoui, G; Abe, S; Acheli, A; Adams, JH ; Ahmad, S; Ahriche, A; Albert, JN; Allard, D; Alonso, G; Anchordoqui, L; Andreev, V; Anzalone, A; Aouimeur, W; Arai, Y; Arsene, N; Asano, K; Attallah, R; Attoui, H; Pernas, MA; Bacholle, S; Bakiri, M; Baragatti, P; Barrillon, P; Bartocci, S; Batsch, T; Bayer, J; Bechini, R; Belenguer, T; Bellotti, R; Belov, A; Belov, K; Benadda, B; Benmessai, K; Berlind, AA; Bertaina, M; Biermann, PL; Biktemerova, S; Bisconti, F; Blanc, N; Blecki, J; Blin-Bondil, S; Bobik, P; Bogomilov, M; Bonamente, M; Boudaoud, R; Bozzo, E; Briggs, MS; Bruno, A; Caballero, KS; Cafagna, F; Campana, D; Capdevielle, JN; Capel, F; Caramete, A; Caramete, L; Carlson, P; Caruso, R; Casolino, M; Cassardo, C; Castellina, A; Castellini, G; Catalano, C; Catalano, O; Cellino, A; Chikawa, M; Chiritoi, G; Christl, MJ; Connaughton, V; Conti, L; Contino, G; Cordero, G; Cotto, G; Crawford, HJ; Cremonini, R; Csorna, S; Dagoret-Campagne, S; De Donato, C; de la Taille, C; De Santis, C; del Peral, L; Di Martino, M; Djemil, T; Djenas, SA; Dulucq, F; Dupieux, M; Dutan, I; Ebersoldt, A; Ebisuzaki, T; Engel, R; Eser, J; Fang, K; Fenu, F; Fernández-González, S; Fernández-Soriano, J; Ferrarese, S; Finco, D; Flamini, M; Fornaro, C; Forza, R; Fouka, M; Franceschi, A; Franchini, S; Fuglesang, C; Fujimoto, J; Fukushima, M; Galeotti, P; García-Ortega, E; Garipov, G; Gascón, E; Geary, J; Gelmini, G; Genci, J; Giraudo, G; Gonchar, M; Alvarado, CG; Gorodetzky, P; Guardone, N; Guarino, F; Guehaz, R; Guzmán, A; Hachisu, Y; Haiduc, M; Harlov, B; Haungs, A; Carretero, JH; Hidber, W; Higashide, K; Ikeda, D; Ikeda, H; Inoue, N; Inoue, S; Insolia, A; Isgrò, F; Itow, Y; Jammer, T; Joven, E; Judd, EG; Jung, A; Jochum, J; Kajino, F; Kajino, T; Kalli, S; Kaneko, I; Kang, D; Kanouni, F; Karadzhov, Y; Karczmarczyk, J; Karus, M; Katahira, K; Kawai, K; Kawasaki, Y; Kedadra, A; Khales, H; 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; Lahmar, H; Lakhdari, F; Larsson, O; Lee, J; Licandro, J; Lim, H; Campano, LL; Maccarone, MC; Mackovjak, S; Mahdi, M; Manfrin, M; Maravilla, D; Marcelli, L; Marcos, JL; Marini, A; Martens, K; Martín, Y; Martinez, O; Masciantonio, G; Mase, K; Matev, R; Matthews, JN; Mebarki, N; Medina-Tanco, G; Mehrad, L; Mendoza, MA; Merino, A; Mernik, T; Meseguer, J; Messaoud, S; Micu, O; Mignone, M; Mimouni, J; 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; Nadji, B; 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; Painter, W; Panasyuk, MI; Panico, B; Parizot, E; Park, IH; Park, HW; Pastircak, B; Patzak, T; Paul, T; Pennypacker, C; Pérez-Grande, I; Perfetto, F; Peter, T; Picozza, P; Pierog, T; Pindado, S; Piotrowski, LW; Piraino, S; Placidi, L; Plebaniak, Z; Pliego, S; Pollini, A; Popescu, EM; Prat, P; Prévôt, G; Prieto, H; Putis, M; Rabanal, J; Radu, AA; Rahmani, M; Reardon, P; Reyes, M; Rezazadeh, M; Ricci, M; Frías, MDR; Ronga, F; Roth, M; Rothkaehl, H; Roudil, G; Rusinov, I; Rybczynski, M; Sabau, MD; Cano, GS; Sagawa, H; Sahnoune, Z; Saito, A; Sakaki, N; Sakata, M; Salazar, H; Sanchez, JC; Sánchez, JL; Santangelo, A; Crúz, LS; Sanz-Andrés, A; 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; Sledd, J; Slominska, K; Sobey, A; Stan, I; Sugiyama, T; Supanitsky, D; Suzuki, M; Szabelska, B; Szabelski, J; Tahi, H; Tajima, F; Tajima, N; Tajima, T; Takahashi, Y; Takami, H; Takeda, M; Takizawa, Y; Talai, MC; Tenzer, C; Tibolla, O; Tkachev, L; Tokuno, H; Tomida, T; Tone, N; Toscano, S; Traïche, M; Tsenov, R; Tsunesada, Y; Tsuno, K; Tymieniecka, T; Uchihori, Y; Unger, M; Vaduvescu, O; Valdés-Galicia, JF; Vallania, P; Vankova, G; Vigorito, C; Villaseñor, L; Vlcek, B; von Ballmoos, P; Vrabel, M; Wada, S; Watanabe, J; Watanabe, S; Watts, J ; Weber, M; Muñoz, RW; Weindl, A; 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, S; Young, R; Zgura, IS; Zotov, MY; Marchi, AZ

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIA