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Nakajima, Kenji; Kawakita, Yukinobu; Ito, Shinichi*; Abe, Jun*; Aizawa, Kazuya; Aoki, Hiroyuki; Endo, Hitoshi*; Fujita, Masaki*; Funakoshi, Kenichi*; Gong, W.*; et al.
Quantum Beam Science (Internet), 1(3), p.9_1 - 9_59, 2017/12
The neutron instruments suite, installed at the spallation neutron source of the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC), is reviewed. MLF has 23 neutron beam ports and 21 instruments are in operation for user programs or are under commissioning. A unique and challenging instrumental suite in MLF has been realized via combination of a high-performance neutron source, optimized for neutron scattering, and unique instruments using cutting-edge technologies. All instruments are/will serve in world-leading investigations in a broad range of fields, from fundamental physics to industrial applications. In this review, overviews, characteristic features, and typical applications of the individual instruments are mentioned.
Sakai, Kenji; Sakamoto, Shinichi; Kinoshita, Hidetaka; Seki, Masakazu; Haga, Katsuhiro; Kogawa, Hiroyuki; Wakui, Takashi; Naoe, Takashi; Kasugai, Yoshimi; Tatsumoto, Hideki; et al.
JAEA-Technology 2011-039, 121 Pages, 2012/03
JAEA-Technology-2011-039.pdf:10.87MB
This report investigates the behavior, damage and restoration of a neutron source station of the MLF at the Great East Japan Earthquake and verified the safety design for emergency accidents in the neutron source station. In the MLF, after an occurrence of the Earthquake, strong quakes were detected at the instruments, the external power supply was lost, all of the circulators shut down automatically, and the hydrogen gas was released. The leakages of mercury, hydrogen and radio-activation gases did not occur. While, the quakes made gaps between the shield blocks and ruptured external pipe lines by subsidence around the building. But significant damages to the components were not found though the pressure drop of compressed air lines influenced on a target trolley lock system and so on. These results substantiated the validity of the safety design for emergency accidents in the source station, and suggested several points of improvement.
Sakai, Kenji; Futakawa, Masatoshi; Takada, Hiroshi; Sakamoto, Shinichi; Maekawa, Fujio; Kinoshita, Hidetaka; Seki, Masakazu; Haga, Katsuhiro; Kogawa, Hiroyuki; Wakui, Takashi; et al.
Proceedings of 20th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-20) (USB Flash Drive), 6 Pages, 2012/03
This report investigates behaviors and damages of each component in a neutron target station of the MLF at the J-PARC at the time of the Great East Japan Earthquake (GEJE). At the date of the GEJE, in the MLF, strong quakes were detected at several instruments, an external power supply were lost, all of the circulation systems were shut down automatically, and a hydrogen gas was released as planned. Leakage of activation liquids and gases did not occur. While, the quakes made gaps between shield blocks and ruptured external pipe lines for air and water by subsidence. But significant damages on the components of the target station were not found though a loss of compressed air supply affected lock systems with air cylinders and pneumatic operation values. These results substantiated a validity of safety design on the target station for emergency accidents.
Tobita, Kenji; Nishitani, Takeo; Harano, Hideki*; Tani, Keiji; Isobe, Mitsutaka*; Fujita, Takaaki; Kusama, Yoshinori; G.A.Wurden*; Shirai, Hiroshi; Oikawa, Toshihiro; et al.
Fusion Energy 1996, Vol.1, p.497 - 505, 1997/00
no abstracts in English
Tobita, Kenji; Harano, Hideki*; Nishitani, Takeo; Fujita, Takaaki; Tani, Keiji; Oikawa, Toshihiro; Shirai, Hiroshi; Kusama, Yoshinori
Nuclear Fusion, 37(11), p.1583 - 1592, 1997/00
Times Cited Count：26 Percentile：64.72(Physics, Fluids & Plasmas)no abstracts in English
Maekawa, Fujio; Takada, Hiroshi; Teshigawara, Makoto; Kasugai, Yoshimi; Aso, Tomokazu; Oikawa, Kenichi; Harada, Masahide; Kai, Tetsuya; Hasegawa, Shoichi; Tatsumoto, Hideki; et al.
no journal, ,
no abstracts in English
Fukasawa, Tetsuo*; Hoshino, Kuniyoshi*; Hanawa, Takao*; Oikawa, Hideki*; Akabori, Mitsuo; Takano, Masahide; Sato, Seichi*; Shimazu, Yoichiro*
no journal, ,
no abstracts in English
Fukasawa, Tetsuo*; Hoshino, Kuniyoshi*; Oikawa, Hideki*; Arai, Yasuo; Takano, Masahide; Sato, Seichi*; Shimazu, Yoichiro*
no journal, ,
no abstracts in English
Fukasawa, Tetsuo*; Hoshino, Kuniyoshi*; Oikawa, Hideki*; Arai, Yasuo; Takano, Masahide; Sato, Seichi*; Shimazu, Yoichiro*
no journal, ,
no abstracts in English
-YO
by Y-89 NMRNakamura, Akio; Ando, Mariko*; Oikawa, Itaru*; Maekawa, Hideki*; Takahashi, Masashi*
no journal, ,
no abstracts in English
