K. Ichimura
University of Tsukuba
5 Papers
15 Citations
K. Ichimura is an academic researcher from University of Tsukuba. The author has contributed to research in topics: Divertor & Ion. The author has an hindex of 4, co-authored 5 publications.
Chat about Author
Papers
Progress of divertor simulation research toward the realization of detached plasma using a large tandem mirror device
Yousuke Nakashima,H. Takeda,K. Ichimura,K. Hosoi,Kensuke Oki,Mizuki Sakamoto,M. Hirata,Makoto Ichimura,Ryuya Ikezoe,Tsuyoshi Imai,M. Iwamoto,Y. Hosoda,Isao Katanuma,Tsuyoshi Kariya,S. Kigure,Junko Kohagura,R. Minami,T. Numakura,S. Takahashi,Masayuki Yoshikawa,Nobuyuki Asakura,M. Fukumoto,Akiyoshi Hatayama,Yoshiki Hirooka,Shinichiro Kado,Hirotaka Kubo,Suguru Masuzaki,Hiroto Matsuura,Shinji Nagata,Nobuhiro Nishino,Noriyasu Ohno,Akio Sagara,T. Shikama,Mamoru Shoji,Akira Tonegawa,Yoshio Ueda +35 more
TL;DR: In this article, a new divertor simulation experimental module (D-module) was installed on one of the end mirror exits which is specially designed to investigate the physics of plasma detachment.
20
Numerical Simulation Study of Plasma Flow in the GAMMA10/PDX End-cell Using a Fluid Code
H. Takeda,Yousuke Nakashima,Akiyoshi Hatayama,Md. Shahinul Islam,K. Ichimura,M. M. Islam,K. Shimuzu,K. Fukui,M. Ohuchi,Mizuki Sakamoto,Tsuyoshi Imai +10 more
TL;DR: In this paper, a multi-fluid code was developed and applied to the region from west plug/barrier-cell to end cell in GAMMA 10/PDX to investigate the effect of impurity injection on plasma parameters, interactions between Ar impurity and hydrogen bulk plasma were included in this model.
Study of the Axial Ion Confinement Time for High Particle Flux Operations of GAMMA 10/PDX
K. Ichimura,Yousuke Nakashima,M. M. Islam,Md. Shahinul Islam,K. Shimizu,K. Fukui,M. Ohuchi,Mafumi Hirata,Ryuya Ikezoe,S. Sumida,Masayuki Yoshikawa,Naomichi Ezumi,Mizuki Sakamoto,Makoto Ichimura,Tsuyoshi Imai +14 more
TL;DR: In this paper, the authors investigated the axial plasma confinement in high-density mode of the GAMMA 10/PDX tandem mirror and found that the end-loss ion particle flux showed linear dependence on the plasma density instead of the parabolic dependence expected in plasmas of low collision frequency.
1
Recent Results of Divertor Simulation Experiments Using D-Module in the GAMMA 10/PDX Tandem Mirror
Yousuke Nakashima,Mizuki Sakamoto,H. Takeda,K. Ichimura,Y. Hosoda,M. Iwamoto,K. Shimizu,K. Hosoi,Kensuke Oki,Masayuki Yoshikawa,M. Hirata,Ryuya Ikezoe,Tsuyoshi Imai,Tsuyoshi Kariya,Isao Katanuma,Junko Kohagura,R. Minami,T. Numakura,Xiaolong Wang,Makoto Ichimura +19 more
TL;DR: In this article, the authors described the recent results of divertor simulation research toward the realization of the detached plasma using the end-mirror of a large tandem mirror device, which achieved the highest particle flux up to 1.76 × 1023 particles/m2 at the end mirror exit.