Faculty Profiles - SHIMIZU Hirohiko

Papers - SHIMIZU Hirohiko

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

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

Journal of Physics Conf. Ser. Vol. 502 page： 012030 2014

Neutron-Antineutron Oscillation: A Snowmass 2013 White Paper

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

arXiv:1310.8593v1 page： 1-26 2013.10

An Evaluation of the Exposure in Nadir Observation of the JEM-EUSO Mission Reviewed

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

Astroparticle Physics Vol. 44 page： 76-90 2013

Basic Concepts of Polarization Analysis for Neutron Chopper Spectrometer POLANO at J-PARC Reviewed

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

J. Phys. Soc. Jpn. Vol. 82 page： SA036 2013

Magnetic Shield Design of In-situ SEOP Polarized 3He Neutron Spin Filter System Reviewed

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 Vol. 42 page： 200-205 2013

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

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

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

Development of longitudinal-gradient magnet for time focusing of ultra-cold neutron with anisotropic inter-pole

Yasushi Arimoto, Yoshihisa Iwashita, Tamaki Yoshioka, Masaaki Kitaguchi, Sohei Imajo, Hirohiko M. Shimizu, Koichiro Asahi, Takashi Ino, Yoshio Kamiya, Kenji Mishima, Suguru Muto, Kenji Sakai, Tatsushi Shima, Kaoru Taketani, Satoru Yamashita, Akihiro Yoshimi

IEEE Transactions on Applied Superconductivity Vol. 22 ( 3 ) page： 6156745 2012.6

Language：English

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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Demonstration of Focusing by a Neutron Accelerator Reviewed

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

Phys. Rev. A Vol. 86 page： 023843, 1-4 2012

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 page： 2766-2768 2012

Present status of neutron fundamental physics at J-PARC Invited Reviewed Open Access

Yasushi Arimoto, Haruhiko Funahashi, Nao Higashi, Masahiro Hino, Katsuya Hirota, Shohei Imajo, Takashi Ino, Yoshihisa Iwashita, Ryo Katayama, Masaaki Kitaguchi, Kenji Mishima, Suguru Muto, Hideyuki Oide, Hidetoshi Otono, Yoshichika Seki, Tatsushi Shima, Hirohiko M. Shimizu, Kaoru Taketani, Takahiro Yamada, Satoru Yamashita, Tamaki Yoshioka

Progress of Theoretical and Experimental Physics Vol. 2012 ( 1 ) page： 02B007 2012

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

© The Author(s) 2012. 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

Open Access

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Variable Permanent Magnet Multipoles Reviewed

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

IEEE Trans. Appl. Supercond. Vol. 22 page： 4000905 2012

A Compact SEOP 3He Neutron Spin Filter with AFP-NMR Reviewed

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. Vol. 340 page： 042006 2012

Development of Polarized Xe Gas Target for Neutron Experiment Reviewed

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. Vol. 340 page： 012037 2012

Demonstration of Optical Thickness Measurement Using Multilayer Cold Neutron Interferometer Reviewed

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

Journal of Physics Conf. Ser. Vol. 340 page： 012039 2012

Development of Longitudinal-gradient Magnet for Time Focusing of Ultracold Neutron with Anisotropic Interpole Reviewed

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. Vol. 22 page： 6156745 2012

A compact SEOP He-3 neutron spin filter with AFP NMR Reviewed

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

5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING Vol. 340 2012

Language：English Publishing type：Research paper (international conference proceedings) Publisher：IOP PUBLISHING LTD

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 He-3 was measured to be as low as 3.8 x 10(-4). With this technique, a compact in-situ polarizing He-3 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 Reviewed

Kaoru Taketani, Masahiro Hino, Hirohiko M. Shimizu

PHYSICA B-CONDENSED MATTER Vol. 406 ( 12 ) page： 2377 - 2380 2011.6

Language：English Publishing type：Research paper (scientific journal) Publisher：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

Web of Science

A compact TOF-SANS using focusing lens and very cold neutrons Reviewed

Masako Yamada, Yoshihisa Iwashita, Toshiji Kanaya, Norifumi L. Yamada, Hirohiko M. Shimizu, Kenji Mishima, Masahiro Hino, Masaaki Kitaguchi, Katsuya Hirota, Peter Geltenbort, Bruno Guerard, Giuliana Manzin, Ken Anderson, Jyotsana Lal, John M. Carpenter, Markus Bleuel, Shane J. Kennedy

PHYSICA B-CONDENSED MATTER Vol. 406 ( 12 ) page： 2453 - 2457 2011.6

Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV

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 x 10(4) to 5.9 x 10(4) T/m(2), 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 angstrom, 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 angstrom(-1) <= q <= 0.3 angstrom(-1) or 0.004 angstrom(-1) <= q <= 0.08 angstrom(-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). (C) 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 Reviewed

Tamaki Yoshioka, Kenji Mishima, Takashi Ino, Kaoru Taketani, Suguru Muto, Takahiro Morishima, Hirohiko M. Shimizu, Takayuki Oku, Junichi Suzuki, Takenao Shinohara, Kenji Sakai, Hiromi Sato, Katsuya Hirota, Yoshie Otake, Masaaki Kitaguchi, Masahiro Hino, Yoshichika Seki, Yoshihisa Iwashita, Masako Yamada, Masahiro Ichikawa, Takanori Sugimoto, Shinsuke Kawasaki, Sachio Komamiya, Hidetoshi Otono, Yoshio Kamiya, Satoru Yamashita, Peter Geltenbort

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT Vol. 634 ( 1 SUPPL. ) page： S17 - S20 2011.4

Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV

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. (C) 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 Reviewed

Takashi Ino, Takenao Shinohara, Tomohiro Adachi, Katsuya Hirota, Masahiro Hino, Takayuki Oku, Kaoru Taketani, Kenji Mishima, Tamaki Yoshioka, Yasushi Arimoto, Suguru Muto, Jun-ichi Suzuki, Hirohiko M. Shimizu

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT Vol. 634 ( 1 SUPPL. ) page： S94 - S96 2011.4

Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV

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. (C) 2010 Elsevier BM. All rights reserved.

DOI： 10.1016/j.nima.2010.05.046

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Papers - SHIMIZU Hirohiko