J
Junji Ohmori
Researcher at Japan Atomic Energy Research Institute
Publications - 8
Citations - 160
Junji Ohmori is an academic researcher from Japan Atomic Energy Research Institute. The author has contributed to research in topics: Tokamak & Thermal shock. The author has an hindex of 3, co-authored 8 publications receiving 158 citations.
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Design study of fusion DEMO plant at JAERI
Kenji Tobita,Satoshi Nishio,Mikio Enoeda,Masayasu Sato,Takaaki Isono,Shinji Sakurai,Hideo Nakamura,Satoshi Sato,Satoshi Suzuki,M. Ando,Koichiro Ezato,T. Hayashi,Takanori Hirose,Takashi Inoue,Yoshinori Kawamura,Norikiyo Koizumi,Y. Kudo,R. Kurihara,T. Kuroda,Makoto Matsukawa,K. Mouri,Y. Nakamura,Masataka Nishi,Nomoto Yasunobu,Junji Ohmori,Naoyuki Oyama,Keishi Sakamoto,T. Suzuki,M. Takechi,Hiroyasu Tanigawa,K. Tsuchiya,Daigo Tsuru +31 more
TL;DR: In this paper, three options of fusion DEMO plant are proposed characterized by functions of the center solenoid (CS), and the prime option uses a downsized CS, which does not provide sufficient V-s for plasma current ramp-up but supplies enough coil current for plasma shaping.
Journal ArticleDOI
Wave Form of Current Quench during Disruptions in Tokamaks
Masayoshi Sugihara,V.E. Lukash,Yasunori Kawano,Ryuji Yoshino,Yuri Gribov,R. R. Khayrutdinov,Nobuharu Miki,Junji Ohmori,Michiya Shimada +8 more
TL;DR: In this paper, the time dependence of current decay during the current quench phase of disruptions, which can significantly influence the electro-magnetic force on the in-vessel components due to the induced eddy currents, is investigated using data obtained in JT-60U experiments in order to derive a relevant physics guideline for the predictive simulations of disruptions in ITER.
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Thermal shock fracture of graphite armor plate under the heat load of plasma disruption
TL;DR: In this paper, the authors performed experiments on the thermal shock brittle fracture of graphite plates and found that pre-cracks produced on the surface propagated to the inside of the specimen even if the thermal stress on the surfaces was compressive.
Journal ArticleDOI
Design and Structural Analysis of Support Structure for ITER Vacuum Vessel
TL;DR: In this paper, an independent VV support structure with multiple flexible plates located at the bottom of VV lower port is proposed as a new concept, which is deferent from the current design.