研究者詳細 - 清水　裕彦

論文 - 清水　裕彦

分割表示 475 件中 421 - 440 件目／全件表示 >>

Development of a New Neutron Mirror made of Deuterated Diamond-like Carbon 査読有り

D.Sakurai, J.Chiba, T.Ino, K.Kakusho, N.Kaneko, R.Katayama, M.Kitaguchi, K.Mishima, S.Muto, K.Ozeki, H.M.Shimizu, S.Yamashita, T.Yoshioka, D.Nishimura

Journal of Physics Conf. See. 502 巻頁： 012010 2014年

Neutron-Antineutron Oscillation: A Snowmass 2013 White Paper

K.Babu, S.Banerjee, D.V.Baxter, Z.Berezhiani, M.Bergevin, S.Bhattacharya, S.Brice, T.W.Burgess, L.Castellanos, S.Chattopadhyay, M-C.Chen, C.E.Coppola, R.Cowsik, J.A.Crabtree, P.Das, E.B.Dees, A.Dolgov, G.Dvali, P.Ferguson, M.Frost, T.Gabriel, A.Gal, F.Gallmeier, K.Ganezer, E.Golubeva, V.B.Graves, G.Greene, T.Handler, B.Hartfiel, A.Hawari, L.Heilbronn, C.Johnson, Y.Kamyshkov, B.Kerbikov, M.Kitaguchi, B.Z.Kopeliovich, V.B.Kopeliovich, W.Korsch, V.Kuzmin, C-Y.Liu, P.McGaughey, M.Mocko, R.Mohapatra, N.Mokhov, G.Muhrer, P.Mumm, L.Okun, R.W.Pattie Jr., D.G.Phillips II, C.Quigg, E.Ramberg, A.Ray, A.Roy, A.Ruggles, U.Sarkar, A.Saunders, A P.Serebrov, H.M.Shimizu, R.Shrock, A.K.Sikdar, S.Sjue, W.M.Snow, A.Soha, S.Spanier, S.Striganov, L.Townsend, R.Tschirhart, A.Vainshtein, R.Van Kooten, Z.Wang, B.Wehring and A.R.Young

arXiv:1310.8593v1 頁： 1-26 2013年10月

Rebunching Ultracold Neutrons by Magnetic Deceleration for the Neutron EDM Experiment at J-PARC

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

Proc. 4th International Particle Accelerator Conference (IPAC2013), Shanghai, China 12-17 May, 2013 頁： 1187 2013年

An Evaluation of the Exposure in Nadir Observation of the JEM-EUSO Mission 査読有り

J.H.Adams Jr., S.Ahmad, J.-N.Albert, D.Allard, M.Ambrosio, L.Anchordoqui, A.Anzalone, Y.Arai, C.Aramo, K.Asano, M.Ave, P.Barrillon, T.Batsch, J.Bayer, T.Belenguer, R.Bellotti, A.A.Berlind, M.Bertain, P.L.Biermann, S.Biktemerova, C.Blaksley, J.B l¸ecki, S.Blin-Bondilb, J.Blumer, P.Bobik, M.Bogomilov, M.Bonamente, M.S.Briggs, S.Briz, A.Bruno, F.Cafagna, D.Campana, J.-N.Capdevielle, R.Caruso, M.Casolino, C.Cassardo, G.Castellini, O.Catalano, A.Cellino, M.Chikawa, M.J.Christl, V.Connaughton, J.F.Cortes, H.J.Crawford, R.Cremonini, S.Csorna, J.C.D'Olivo, S.Dagoret-Campagne, A.J.de Castro, C.De Donato, C.de la Taille, L.del Peral, A.Dell'Oro, M.P.De Pascale, M.Di Martino, G.Distratis, M.Dupieux, A.Ebersoldt, T.Ebisuzaki, R.Engel, S.Falk, K.Fang, F.Fenu, I.Fernandez-Gomez, S.Ferrarese, A.Franceschi, J.Fujimoto, P.Galeotti, G.Garipov, J.Geary, U.G.Giaccari, G.Giraudo, M.Gonchar, C.Gonz´alez Alvarado, P.Gorodetzky, F.Guarino, A.Guzm´an, Y.Hachisu, B.Harlov, A.Haungs, J.Hernandez Carretero, K.Higashide, T.Iguchi, H.Ikeda, N.Inoue, S.Inoue, A.Insoli, F.Isgro, Y.Itow, E.Joven, E.G.Judd, A.Jung, F.Kajino, T.Kajino, I.Kaneko, Y.Karadzhov, J.Karczmarczyk, K.Katahira, K.Kawai, Y.Kawasaki, B.Keilhauer, B.A.Khrenov, Jeong-Sook Kim, Soon-Wook Kim, Sug-Whan Kim, M.Kleifges, P.A.Klimov, S.H.Ko, D.Kolev, I.Kreykenbohm, K.Kudela, Y.Kurihara, E.Kuznetsov, G.La Rosa, J.Lee, J.Licandro, H.Lim, F.Lopez, M.C.Maccarone, K.Mannheim, L.Marcelli, A.Marini, G.Martin-Chassard, O.Martinez, G.Masciantonio, K.Mase, R.Matev, A.Maurissen, G.Medina-Tanco, T.Mernik, H.Miyamoto, Y.Miyazaki, Y.Mizumoto, G.Modestino, D.Monnier-Ragaigne, J.A.Morales de los Rios, B.Mot, T.Murakami, M.Nagano, M.Nagata, S.Nagataki, T.Nakamura, J.W.Nam, S.Nam, K.Nam, T.Napolitano, D.Naumov, A.Neronov, K.Nomoto, T.Ogawa, H.Ohmori, A.V.Olinto, P.Orleanski, G.Osteria, N.Pacheco, M.I.Panasyuk, E.Parizot, I.H.Park, B.Pastircak, T.Patzak, T.Paul, C.Pennypacker, T.Peter, P.Picozza, A.Pollini, H.Prieto, P.Reardon, M.Reina, M.Reyes, M.Ricci, I.Rodriguez, M.D.Rodriguez Frias, F.Ronga, H.Rothkaehl, G.Roudil, I.Rusinov, M.Rybczynski, M.D.Sabau, G.Saez Cano, A.Saito, N.Sakaki, M.Sakata, H.Salazar, S.Sanchez, A.Santangelo, L.Santiago Cruz, M.Sanz Palomino, O.Saprykin, F.Sarazin, H.Sato, M.Sato, T.Schanz, H.Schieler, V.Scotti, M.Scuderi, A.Segreto, S.Selmane, D.Semikoz, M.Serra, S.Sharakin, T.Shibata, H.M.Shimizu, K.Shinozaki, T.Shirahama, G.Siemieniec-Ozieblo, H.H.Silva Lopez, J.Sledd, K.S lominska, A.Sobey, T.Sugiyama, D.Supanitsky, M.Suzuki, B.Szabelska, J.Szabelski, F.Tajima, N.Tajima, T.Tajima, Y.Takahashi, H.Takami, M.Takeda, Y.Takizawa, C.Tenzer, O.Tibolla, L.Tkachev, T.Tomida, N.Tone, F.Trillaud, R.Tsenov, K.Tsuno, T.Tymieniecka, Y.Uchihori, O.Vaduvescu, J.F.Valdes-Galicia, P.Vallani, L.Valore, G.Vankova, C.Vigorito, L.Villasenor, P.von Ballmoos, S.Wada, J.Watanabe, S.Watanabe, J.Watts Jr., M.Weber, T.J.Weiler, T.Wibig, L.Wiencke, M.Wille, J.Wilms, Z.W lodarczyk, T.Yamamoto, Y.Yamamoto, J.Yang, H.Yano, I.V.Yashin, D.Yonetoku, K.Yoshida, S.Yoshida, R.Young, A.Zamora, A.Zuccaro Marchi

Astroparticle Physics 44 巻頁： 76-90 2013年

Basic Concepts of Polarization Analysis for Neutron Chopper Spectrometer POLANO at J-PARC 査読有り

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

J. Phys. Soc. Jpn. 82 巻頁： SA036 2013年

Magnetic Shield Design of In-situ SEOP Polarized 3He Neutron Spin Filter System 査読有り

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

Physics Procedia 42 巻頁： 200-205 2013年

Development of Longitudinal-Gradient Magnet for Time Focusing of Ultra-Cold Neutron With Anisotropic Inter-Pole

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

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 22 巻 ( 3 ) 頁： 6156745 2012年6月

記述言語：英語出版者・発行元：IEEE Transactions on Applied Superconductivity

Ultra-cold neutron (UCN) is attractive for a search of the neutron electric dipole moment (nEDM). It is crucial to store UCNs with high density in a bottle for nEDM measurement apparatus. To increase the density, time focusing technique can be useful, where slow neutrons are accelerated and fast neutrons are decelerated by using magnetic potential. This device is called rebuncher. The rebuncher consists of a gradient magnet, RF coil, and neutron guide. The magnet generates a field gradient of 3.5 T/m (from 1 T to 0.2 T within 24 cm) in the longitudinal direction. By using anisotropic inter-poles, the magnet is compact and keeps the gradient uniform. The fabricated magnet showed good performance as designed. © 2012 IEEE.

DOI： 10.1109/TASC.2012.2183569

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Present status of neutron fundamental physics at J-PARC 招待有り査読有り Open Access

Arimoto, Y; Funahashi, H; Higashi, N; Hino, M; Hirota, K; Imajo, S; Ino, T; Iwashita, Y; Katayama, R; Kitaguchi, M; Mishima, K; Muto, S; Oide, H; Otono, H; Seki, Y; Shima, T; Shimizu, HM; Taketani, K; Yamada, T; Yamashita, S; Yoshioka, T

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS 2012 巻 ( 1 ) 頁： 02B007 2012年

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

A neutron beamline for the study of 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 development of the transport optics of ultracold neutrons are in progress. The present status of the beamline and these experiments is reported.

DOI： 10.1093/ptep/pts075

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A Compact SEOP 3He Neutron Spin Filter with AFP-NMR 査読有り

T.Ino, Y.Arimoto, H.M.Shimizu, Y.Sakaguchi, K.Sakai, H.Kira, T.Shinohara, T.Oku, J.-I.Suzuki, K.Kakurai, L.-J.Chang

Journal of Physics Conf. Ser. 340 巻頁： 042006 2012年

Development of Polarized Xe Gas Target for Neutron Experiment 査読有り

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

Journal of Physics Conf. Ser. 340 巻頁： 012037 2012年

Demonstration of Optical Thickness Measurement Using Multilayer Cold Neutron Interferometer 査読有り

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

Journal of Physics Conf. Ser. 340 巻頁： 012039 2012年

Development of Longitudinal-gradient Magnet for Time Focusing of Ultracold Neutron with Anisotropic Interpole 査読有り

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

IEEE Trans. Appl. Supercond. 22 巻頁： 6156745 2012年

Variable Permanent Magnet Multipoles 査読有り

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

IEEE Trans. Appl. Supercond. 22 巻頁： 4000905 2012年

Demonstration of Focusing by a Neutron Accelerator 査読有り

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

Phys. Rev. A 86 巻頁： 023843, 1-4 2012年

Rebunching Low Energy Neutrons by Magnetic Acceleration and Deceleration

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

Proc. 3rd International Particle Accelerator Conference (IPAC2012), New Orleans, USA, 20-25 May, 2012 頁： 2766-2768 2012年

A compact SEOP He-3 neutron spin filter with AFP NMR 査読有り

Ino Takashi, Arimoto Yasushi, Shimizu Hirohiko M., Sakaguchi Yoshifumi, Sakai Kenji, Kira Hiroshi, Shinohara Takenao, Oku Takayuki, Suzuki Jun-ichi, Kakurai Kazuhisa, Chang Lieh-Jeng

5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING 340 巻 2012年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：Journal of Physics: Conference Series

We developed AFP NMR in an aluminum container for polarized noble gas nuclei. The radio frequency magnetic field inside the aluminum container was designed from computer simulations. The polarization loss by the AFP spin flip of 3He was measured to be as low as 3.8x10-4. With this technique, a compact in-situ polarizing 3He neutron spin filter with AFP NMR is demonstrated.

DOI： 10.1088/1742-6596/340/1/012006

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Recovery of reduced fringe visibility due to finite crossing angle between two paths of a neutron interferometer 査読有り

Kaoru Taketani, Masahiro Hino, Hirohiko M. Shimizu

PHYSICA B-CONDENSED MATTER 406 巻 ( 12 ) 頁： 2377 - 2380 2011年6月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

In the present study the restoration of interference fringes, whose visibility is degraded by the presence of a finite crossing angle between the two paths of a neutron interferometer, is experimentally demonstrated. A crossing angle of 1.0 mu rad was introduced using an optical component consisting of a magnetic multilayer mirror, a wedge-shaped gap layer, and a nonmagnetic multilayer mirror. To restore the interference fringes, magnetic gradients of 0.64 G/cm were applied using two electro-quadrupole magnets. (C) 2010 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physb.2010.11.090

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A compact TOF-SANS using focusing lens and very cold neutrons 査読有り

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

PHYSICA B-CONDENSED MATTER 406 巻 ( 12 ) 頁： 2453 - 2457 2011年6月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Physica B: Condensed Matter

We are developing a high-resolution small angle neutron scattering instrument for very cold neutrons (VCN). Our concept includes a magnetic lens for focusing of the beam at the detector plane. The lens consists of one permanent-magnet sextupole array rotating outside another stationary sextupole array, to focus a pulsed white beam of neutrons. Thus the instrument operates in time of flight mode. The prototype magnetic lens has a bore of 15 mm diameter and length of 66 mm, producing a magnetic field gradient oscillating from 1.5×104 to 5.9×104 T/m2, with frequency ≤25 Hz. A torque-canceling magnet around the lens suppresses the torque of rotation from the outer array to 1/3. We have demonstrated the performance of the lens, over wavelength range from 30 to 48 Å, on the PF2-VCN beam line at the Institut Laue-Langevin, France. The focused beam image was the same size as the source, without chromatic aberration, with focal length of 1.14 m. We also studied the performance of this configuration for high-resolution SANS, in a compact geometry (just 5 m long). The measurable q range of this system was 0.009 Å-1≤q≤0.3 Å-1 or 0.004 Å-1≤q≤0.08 Å-1 for sample to detector distances of 100 and 465 mm, respectively. Here, we present the results of our lens characterization study along with the SANS results on a tri-block copolymer (F127 Pluronic) and on a stretched polymer blend (with the Shish-Kebab structure). © 2010 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physb.2010.12.002

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Polarization of very cold neutron using a permanent magnet quadrupole 査読有り

Yoshioka, T; Mishima, K; Ino, T; Taketani, K; Muto, S; Morishima, T; Shimizu, HM; Oku, T; Suzuki, J; Shinohara, T; Sakai, K; Sato, H; Hirota, K; Otake, Y; Kitaguchi, M; Hino, M; Seki, Y; Iwashita, Y; Yamada, M; Ichikawa, M; Sugimoto, T; Kawasaki, S; Komamiya, S; Otono, H; Kamiya, Y; Yamashita, S; Geltenbort, P

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 634 巻 ( 1 SUPPL. ) 頁： S17 - S20 2011年4月

記述言語：英語掲載種別：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

For the future fundamental physics experiments by using cold neutrons, we are developing a device which can measure the neutron polarization degree by accuracy significantly below 10-3. A quadrupole magnet is one of the promising candidate to measure the neutron polarization degree by such extremely high precision. We have performed a polarization experiment by using the quadrupole magnets at the Very Cold Neutron (VCN) port of the PF-2 in the Institute Laue-Langevin (ILL). As a result, we obtained the polarization degree P with very high accuracy P=0.9994±0.0001(stat.)±0.0003(syst.), which meet our requirement significantly. © 2010 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2010.05.029

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Development of thin film neutron focusing lenses 査読有り

Ino, T; Shinohara, T; Adachi, T; Hirota, K; Hino, M; Oku, T; Taketani, K; Mishima, K; Yoshioka, T; Arimoto, Y; Muto, S; Suzuki, J; Shimizu, HM

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 634 巻 ( 1 SUPPL. ) 頁： S94 - S96 2011年4月

We have developed thin film Fresnel lenses made of a hydrogen-free amorphous polymer for neutron focusing purposes. A neutron beam test showed the strong focusing of a cold neutron beam, and an increase of the neutron intensity was observed to be more than 50 times. © 2010 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.nima.2010.05.046

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