Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Fujio Shimpo"'
Autor:
Tetsuo Seki, Takashi Mutoh, K. Saito, Goro Nomura, Ryosuke Seki, Ryuhei Kumazawa, Hiroshi Kasahara, Fujio Shimpo
Publikováno v:
Fusion Engineering and Design. 88:1025-1029
A pair of ion cyclotron range of frequencies (ICRF) antennas in the large helical device (LHD), HAS antennas showed high efficiency in minority ion heating. However the low loading resistance must be increased to prevent breakdown in transmission lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14214641958a6b7da618b685edc893db
https://doi.org/10.1016/j.fusengdes.2013.02.100
https://doi.org/10.1016/j.fusengdes.2013.02.100
Autor:
Kenji Saito, Ryuhei Kumazawa, Tetsuo Seki, Hiroshi Kasahara, Goro Nomura, Fujio Shimpo, Hiroe Igami, Mitsutaka Isobe, Kunihiro Ogawa, Kazuo Toi, Masaki Osakabe, Masaki Nishiura, Tsuguhiro Watanabe, Satoshi Yamamoto, Makoto Ichimura, Takashi Mutoh
Publikováno v:
Plasma Science and Technology. 15:209-212
Two pairs of high-frequency magnetic probes were installed in the Large Helical Device (LHD). During the injection of a perpendicular neutral beam, ion cyclotron emissions (ICEs) with the fundamental frequency corresponding to the ion cyclotron frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58b4093ac1afeb99a5a6e7c9f3c9a50c
https://doi.org/10.1088/1009-0630/15/3/03
https://doi.org/10.1088/1009-0630/15/3/03
Autor:
H. Furui, Osamu Watanabe, Kenji Saito, Fujio Shimpo, Hiroshi Kasahara, Takashi Yamaguchi, Yuichi Takase, Takahiro Hashimoto, Takanori Ambo, Takuma Wakatsuki, Yoshihiko Nagashima, Ryuhei Kumazawa, Ryota Shino, Charles P. Moeller, Hidetoshi Kakuda, Junichi Hiratsuka, M. Sonehara, Tetsuo Seki, Akira Ejiri, Kunihiko Kato, Takahiro Shinya, Takuya Sakamoto
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 132:485-489
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::977d8e2376c2b2089b99e00dd83a0c44
https://doi.org/10.1541/ieejfms.132.485
https://doi.org/10.1541/ieejfms.132.485
Autor:
Tetsuo Seki, Takashi Mutoh, Hiroshi Kasahara, K. Saito, Goro Nomura, Ryuhei Kumazawa, Mitsuhiro Yokota, Fujio Shimpo
Publikováno v:
Fusion Engineering and Design. 86:987-991
New ion cyclotron range of frequencies (ICRF) antennas have just been installed in the large helical device (LHD). These side-by-side ICRF antennas are symmetrical and designed to launch fast waves with various wave numbers parallel to the magnetic f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acbcff7aac739a298ae89d8c465cec6e
https://doi.org/10.1016/j.fusengdes.2011.02.033
https://doi.org/10.1016/j.fusengdes.2011.02.033
Autor:
Gajendra Suthar, P. Ajesh, Kumar Rajnish, F. Kazarian, Hiroshi Kasahara, Manoj Patel, B. Beaumont, Ryuhei Kumazawa, Tetsuo Seki, Richa Trivedi, Raj Singh, B. Arambhadiya, Ph. Lamalle, T. Gassmann, Aparajita Mukherjee, D. Rathi, Fujio Shimpo, Harsha Machchhar, D. Patadia, Takashi Mutoh, Goro Nomura, K. Saito
Publikováno v:
Fusion Engineering and Design. 86:888-891
The Ion Cyclotron Heating and Current Drive (IC H&CD) system for ITER will provide 20 MW to the plasma. The associated Radio Frequency (RF) source system has to be compliant with all operation modes foreseen in that frame. Their specifications are fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f8c2a9f36902c1bd890e31d91b3255e
https://doi.org/10.1016/j.fusengdes.2011.04.010
https://doi.org/10.1016/j.fusengdes.2011.04.010
Autor:
Hiroshi Kasahara, Kenji Saito, Fujio Shimpo, Tetsuo Seki, T. Mutoh, Ryuhei Kumazawa, Goro Nomura
Publikováno v:
Fusion Science and Technology. 58:504-514
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfa0dd80528d20549e55dea2798cb714
https://doi.org/10.13182/fst58-504
https://doi.org/10.13182/fst58-504
Autor:
T. Watari, Goro Nomura, Takashi Mutoh, K. Saito, Mamiko Sasao, Tetsuo Seki, Hiroshi Kasahara, M. Isobe, Masaki Osakabe, Sadayoshi Murakami, Ryuhei Kumazawa, Fujio Shimpo
Publikováno v:
Fusion Science and Technology. 58:515-523
Various ion cyclotron range of frequencies (ICRF) heating experiments have been conducted in the Large Helical Device (LHD) by changing the magnetic field strength and the wave frequency using hydr...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77e9fa6e1f3d788dc82022753e58f79a
https://doi.org/10.13182/fst10-a10838
https://doi.org/10.13182/fst10-a10838
Autor:
Tetsuo Seki, Takuya Oosako, Fujio Shimpo, Kenji Saito, Takashi Shimozuma, Shin Kubo, Hiroshi Kasahara, Yasuo Yoshimura, Takashi Mutoh, Ryuhei Kumazawa, Goro Nomura, Hiroe Igami, Yuichi Takase, Hiromi Takahashi, Zhao Yanping
Publikováno v:
Plasma Science and Technology. 12:15-19
In large helical device (LHD), antenna loadings are different for minority ion cyclotron heating (MICH with 38.47 MHz) and mode-converted ion Bernstein wave heating (MC-IBW with 28.4 MHz), and it is necessary to improve antenna loading with low heati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9480e3a084da392a66b3cd7ee77695ef
https://doi.org/10.1088/1009-0630/12/1/04
https://doi.org/10.1088/1009-0630/12/1/04
Autor:
Tetsuo Seki, Tsuguhiro Watanabe, K. Saito, Goro Nomura, Hiroshi Kasahara, Makoto Ichimura, Hiroyuki Higaki, Masaki Osakabe, Fujio Shimpo, Ryuhei Kumazawa, Takashi Mutoh, A. Komori
Publikováno v:
Fusion Engineering and Design. 84:1676-1679
Ion cyclotron emissions (ICEs) were clearly detected in the Large Helical Device (LHD) during perpendicular neutral beam (NB) injection. Antennas for the ion cyclotron range of frequencies (ICRF) heating were used as probes. The frequencies of ICEs w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55ab8ba3f01d0f640a7c12c8cc35ab52
https://doi.org/10.1016/j.fusengdes.2008.12.053
https://doi.org/10.1016/j.fusengdes.2008.12.053
Autor:
J. G. Kwak, Chihiro Takahashi, Hiroshi Kasahara, Ryuhei Kumazawa, J.S. Yoon, Fujio Shimpo, Yuanzhe Zhao, A. Komori, K. Saito, Tetsuo Seki, Goro Nomura, Mitsuhiro Yokota, Takashi Mutoh
Publikováno v:
Fusion Engineering and Design. 83:245-248
In the Large Helical Device (LHD), long-pulse plasma experiments have been conducted using an ion cyclotron range of frequencies (ICRFs) heating system. Real-time impedance matching is necessary to keep injecting ICRF heating power into the plasma ag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::337a089030845fed3b65df2e5fe0ce41
https://doi.org/10.1016/j.fusengdes.2008.01.017
https://doi.org/10.1016/j.fusengdes.2008.01.017