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Fe(
, n)
Fe reaction with a linearly polarized -ray beamHayakawa, Takehito; Shizuma, Toshiyuki; Miyamoto, Shuji*; Amano, Sho*; Takemoto, Akinori*; Yamaguchi, Masashi*; Horikawa, Ken*; Akimune, Hidetoshi*; Chiba, Satoshi*; Ogata, Kazuyuki*; et al.
Physical Review C, 93(4), p.044313_1 - 044313_4, 2016/04
Times Cited Count：9 Percentile：47.71(Physics, Nuclear)We have measured the azimuthal anisotropy of neutrons emitted from the Fe(, n)Fe reaction with a linearly polarized ray beam generated by laser Compton scattering at NewSUBARU. Neutron yields at the polar angle of 90
have been measured as a function of the azimuthal angle 
between the detector and the linear polarization plane of the ray beam. The azimuthal anisotropy of neutrons measured at seven angles has been well reproduced using a theoretically predicted function of 
+ 
cos(2).
, n) reactions with linearly polarized -ray beam generated by laser Compton scatteringHorikawa, Ken*; Miyamoto, Shuji*; Mochizuki, Takayasu*; Amano, So*; Li, D.*; Imasaki, Kazuo*; Izawa, Yasukazu*; Ogata, Kazuyuki*; Chiba, Satoshi*; Hayakawa, Takehito
Physics Letters B, 737, p.109 - 113, 2014/10
Times Cited Count：21 Percentile：74.83(Astronomy & Astrophysics)It was predicted in 1950's, the neutron angular distribution in (, n) reactions with a 100% linearly polarized -ray beam should be anisotropic and described by a simple function of a + b sin
at 90 on the beam axis but it has not been experimentally confirmed for middle-heavy nuclides over than half a century. We have verified experimentally this angular distribution on 
Au, 
I, and natural Cu using linearly polarized laser Compton scattering -rays at NewSUBARU.
Kunimaru, Takanori; Mikake, Shinichiro; Nishio, Kazuhisa; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Ishibashi, Masayuki; Ueno, Takashi; Tokuyasu, Shingo; Daimaru, Shuji; Takeuchi, Ryuji; et al.
JAEA-Review 2012-020, 178 Pages, 2012/06
JAEA-Review-2012-020.pdf:33.16MB
Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is pursuing a geoscientific research and development project namely the Mizunami Underground Research Laboratory (MIU) Project in crystalline rock environment in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). The MIU Project has three overlapping phases: Surface-based Investigation phase (Phase I), Construction phase (Phase II), and Operation phase (Phase III). The MIU Project has been ongoing the Phase II. And Phase III started in 2010 fiscal year. This report shows the results of the investigation, construction and collaboration studies in fiscal year 2010, as a part of the Phase II based on the MIU Master Plan updated in 2002.
Igarashi, Takahiro; Ogata, Shuji*; Tsukada, Takashi
Proceedings of 3rd International Conference on Multiscale Materials Modeling, p.179 - 182, 2006/09
no abstracts in English
Igarashi, Takahiro; Ogata, Shuji*
Bussei Kenkyu, 86(1), p.1 - 36, 2006/04
no abstracts in English
Igarashi, Takahiro; Ogata, Shuji*
Nihon Kikai Gakkai-Shi, 108(1043), p.812 - 814, 2005/10
no abstracts in English
Kotaki, Hideyuki; Nakajima, Kazuhisa*; Kando, Masaki*; Dewa, Hidenori*; Kondo, Shuji; ; Watanabe, Takahiro*; Ueda, Toru*; Nakanishi, Hiroshi*; Yoshii, Koji*; et al.
Inst. Phys. Conf. Ser., (159), p.565 - 567, 1999/00
no abstracts in English
Kando, Masaki; Kotaki, Hideyuki; Dewa, Hidenori; Kondo, Shuji; Yoshii, Koji*; Ueda, Toru*; Watanabe, Takahiro*; Uesaka, Mitsuru*; Sakai, Fumio*; Ogata, Atsushi*; et al.
Proceedings of 24th Linear Accelerator Meeting in Japan, p.128 - 130, 1999/00
no abstracts in English
Nakajima, Kazuhisa; Nakanishi, Hiroshi*; Ogata, Atsushi*; Harano, Hideki*; Ueda, Toru*; Uesaka, Mitsuru*; Watanabe, Takahiro*; Yoshii, Koji*; Dewa, Hidenori; Hosokai, Tomonao; et al.
Proceedings of 6th European Particle Accelerator Conference (EPAC98) (CD-ROM), p.809 - 811, 1998/01
no abstracts in English
Dewa, Hidenori*; H.Ahn*; Harano, Hideki*; Kando, Masaki*; Kinoshita, Kenichi*; Kondo, Shuji; Kotaki, Hideyuki; Nakajima, Kazuhisa*; Nakanishi, Hiroshi*; Ogata, Atsushi*; et al.
Nuclear Instruments and Methods in Physics Research A, 410(3), p.357 - 363, 1998/00
Times Cited Count：42 Percentile：92.85(Instruments & Instrumentation)no abstracts in English
Kotaki, Hideyuki; Nakajima, Kazuhisa*; Kando, Masaki*; H.Ahn*; Dewa, Hidenori*; Kondo, Shuji; ; Watanabe, Takahiro*; Ueda, Toru*; Nakanishi, Hiroshi*; et al.
Proc. of 11th Symp. on Accelerator Sci. and Technol., p.449 - 451, 1997/00
no abstracts in English
Kotaki, Hideyuki; Nakajima, Kazuhisa*; Kando, Masaki*; H.Ahn*; Dewa, Hidenori*; Kondo, Shuji; ; Watanabe, Takahiro*; Ueda, Toru*; Nakanishi, Hiroshi*; et al.
Proc. of 11th Symp. on Accelerator Sci. and Technol., p.513 - 515, 1997/00
no abstracts in English
; Kotaki, Hideyuki; Nakajima, Kazuhisa*; Kando, Masaki*; Kondo, Shuji; Dewa, Hidenori*; Watanabe, Takahiro*; Ueda, Toru*; Yoshii, Koji*; Kinoshita, Kenichi*; et al.
Proc. of 11th Symp. on Accelerator Sci. and Technol., p.473 - 475, 1997/00
no abstracts in English
-ray experiments for supernova neutrino processHayakawa, Takehito; Miyamoto, Shuji*; Mochizuki, Takayasu*; Horikawa, Ken*; Amano, So*; Li, D.*; Imasaki, Kazuo*; Izawa, Yasukazu*; Ogata, Kazuyuki*; Chiba, Satoshi*
no journal, ,
The M1 strength in atomic nuclei is important for estimation of neutrino-nucleus interactions in supernovae. We have proposed a method using (, n) reactions with linear polarized laser Compton scattering (LCS) -rays to measure the M1 strength and verified a theoretical prediction for the first time.
Igarashi, Takahiro; Ogata, Shuji*; Kaji, Yoshiyuki
no journal, ,
no abstracts in English
, n) reaction with linear polarized -rays predicted theoretically half a century agoHayakawa, Takehito; Horikawa, Ken*; Miyamoto, Shuji*; Mochizuki, Takayasu*; Amano, So*; Li, D.*; Imasaki, Kazuo*; Izawa, Yasukazu*; Ogata, Kazuyuki*; Chiba, Satoshi*
no journal, ,
In 1950's, Agodi predicted that the neutron angular distribution in (, n) reactions with a 100% linearly polarized -ray beam for dipole excitation should be anisotropic and universally described by the simple function of a + b
cos(
)at polar angle 
=90, where is the azimuthal angle, but it has not been experimentally confirmed over half a century. The work by Agodi had been forgotten after 1970's. We have verified experimentally this angular distribution on three targets using linearly polarized laser Compton scattering -rays at NewSUBARU for the first time.
Igarashi, Takahiro; Ogata, Shuji*; Ietomi, Hiroshi*
no journal, ,
no abstracts in English
FeHayakawa, Takehito; Shizuma, Toshiyuki; Angell, C.; Akimune, Hidetoshi*; Miyamoto, Shuji*; Amano, So*; Mochizuki, Takayasu*; Chiba, Satoshi*; Ogata, Kazuyuki*; Fujiwara, Mamoru*
no journal, ,
Neutron angular distributions from (, n) reactions on heavy isotopes have not been studied yet. We report a result of the photon-induced reaction on Fe. We have measured neutrons using a time-of-flight method. We have measured angular distribution of neutrons by change of the angle of the linear polarization plain of the incident -ray beam. The -ray beam has been generated by laser Compton scattering at NewSUBARU.
Igarashi, Takahiro; Ogata, Shuji*
no journal, ,
no abstracts in English
Igarashi, Takahiro; Ogata, Shuji*
no journal, ,
no abstracts in English
