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Takada, Hiroshi; Haga, Katsuhiro; Teshigawara, Makoto; Aso, Tomokazu; Meigo, Shinichiro; Kogawa, Hiroyuki; Naoe, Takashi; Wakui, Takashi; Oi, Motoki; Harada, Masahide; et al.
Quantum Beam Science (Internet), 1(2), p.8_1 - 8_26, 2017/09
At the Japan Proton Accelerator Research Complex (J-PARC), a pulsed spallation neutron source provides neutrons with high intensity and narrow pulse width to promote researches on a variety of science in the Materials and life science experimental facility. It was designed to be driven by the proton beam with an energy of 3 GeV, a power of 1 MW at a repetition rate of 25 Hz, that is world's highest power level. A mercury target and three types of liquid para-hydrogen moderators are core components of the spallation neutron source. It is still on the way towards the goal to accomplish the operation with a 1 MW proton beam. In this paper, distinctive features of the target-moderator-reflector system of the pulsed spallation neutron source are reviewed.
Honmura, Shiro*; Teraoku, Takuji*; Yoshida, Katsuhiko*; Takada, Hiroshi; Maekawa, Fujio; Kasugai, Yoshimi; Hino, Ryutaro; Watanabe, Noboru; Furusaka, Michihiro
JAERI-Tech 2003-054, 62 Pages, 2003/06
JAERI-Tech-2003-054.pdf:9.53MB
The JAERI and the KEK are jointly on the way of constructing facilities under the High-Intensity Proton Accelerator Project (J-PARC). The Materials and Life Science Facility is one of major facilities comprising a 1MW pulsed neutron source (JSNS). The neutrons are to be utilized for advanced researches in fields of materials and life science, and so on. In designing helium-vessel, it is important to assure structural integrity of the helium-vessel against earthquakes. It is also important to manufacture accurately neutron view ports. In-vessel components need to be replaced by remote handling after a certain period of operation due to radiation damages. To make the replacement steadily and easily, the helium-vessel has to provide suitable support, positioning and sealing structures. This report describes bases and conditions for deigning the helium-vessel, and summarizes basic structural specifications of the helium-vessel which are determined with structure strength and temperature analyses.
Department of Research Reactor
JAERI-Review 2002-033, 215 Pages, 2002/12
JAERI-Review-2002-033.pdf:16.19MB
no abstracts in English
Department of Research Reactor
JAERI-Review 2001-048, 216 Pages, 2002/02
JAERI-Review-2001-048.pdf:17.83MB
no abstracts in English
Department of Research Reactor
JAERI-Review 2000-036, 263 Pages, 2001/03
JAERI-Review-2000-036.pdf:19.89MB
no abstracts in English
March 31, 1999Department of Research Reactor
JAERI-Review 99-032, p.232 - 0, 2000/02
JAERI-Review-99-032.pdf:11.62MB
no abstracts in English
March 31, 1998JAERI-Review 98-027, 205 Pages, 1999/01
JAERI-Review-98-027.pdf:8.95MB
no abstracts in English
March 31, 1997JAERI-Review 98-007, 220 Pages, 1998/03
JAERI-Review-98-007.pdf:10.76MB
no abstracts in English
March 31, 1996JAERI-Tech 97-059, 177 Pages, 1997/12
no abstracts in English
March 31, 1995JAERI-Tech 95-047, 170 Pages, 1995/10
no abstracts in English
March 31, 1994JAERI-Tech 94-024, 189 Pages, 1994/11
no abstracts in English
March 31, 1993JAERI-M 93-226, 229 Pages, 1993/12
no abstracts in English
