Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Goro Nomura"'
Autor:
K. Saito, Tetsuo Seki, Takashi Mutoh, Shuji Kamio, Ryosuke Seki, Hiroshi Kasahara, Goro Nomura, Hakkun Kim, S.J. Wang, H.H. Wi
Publikováno v:
Fusion Engineering and Design. 146:256-260
In the Large Helical Device (LHD), the development of high-power and long-pulse Ion Cyclotron Range of Frequencies (ICRF) heating system is ongoing. The developed Field-Aligned-Impedance-Transforming (FAIT) antenna has the potential for high-power in
Autor:
Motonari Kanda, Heinrich P. Laqua, Dirk Hartmann, Y. Takemura, Yevgen Kazakov, Ryosuke Seki, Tetsuo Seki, G. Fuchert, Shuji Kamio, Samuel Lazerson, R. Brakel, Tom Wauters, J. Ongena, Kenji Saito, Vladimir E. Moiseenko, Andreas Dinklage, Igor E. Garkusha, H. Thomsen, J Arturo Alonso, Yurii Kovtun, Torsten Stange, Hiroshi Kasahara, Goro Nomura
Publikováno v:
Nuclear Fusion
S. Kamio et al 2021 Nucl. Fusion 61 114004
S. Kamio et al 2021 Nucl. Fusion 61 114004
The results of the first experimental series to produce a plasma using the ion cyclotron range of frequency (ICRF) in the large helical device (LHD) within the minority scenario developed at Uragan-2M (U-2M) are presented. The motivation of this stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c89b9c807af8fc742d8dcd020dbb653
https://hdl.handle.net/21.11116/0000-0009-5EEA-721.11116/0000-0009-5EEC-5
https://hdl.handle.net/21.11116/0000-0009-5EEA-721.11116/0000-0009-5EEC-5
Autor:
K. Saito, Shuji Kamio, Ryosuke Seki, Hiroshi Kasahara, Tetsuo Seki, Takashi Mutoh, Goro Nomura
Publikováno v:
Fusion Engineering and Design. 123:444-447
The transmission line is one of the most important components of ion cyclotron range of frequencies (ICRF) heating devices. In the case of unexpected trouble on the line, such as a breakdown, immediate power-off is necessary in order to avoid severe
Autor:
Goro Nomura, Takashi Mutoh, Shuji Kamio, Hiroshi Kasahara, Tetsuo Seki, K. Saito, Ryosuke Seki
Publikováno v:
Fusion Engineering and Design. :583-588
Newly developed ion cyclotron range of frequencies (ICRF) antennas were fabricated and installed in the Large Helical Device (LHD). The antennas, called field-aligned-impedance-transforming (FAIT) antennas, were designed based on former handshake for
Autor:
Goro Nomura, Takashi Mutoh, Shuji Kamio, Ryosuke Seki, Kenji Saito, Tetsuo Seki, Hiroshi Kasahara
Publikováno v:
Shuji Kamio, Hiroshi Kasahara, Tetsuo Seki, Kenji Saito, Ryosuke Seki, Goro Nomura, Takashi Mutoh, Feedback control of plasma density and heating power for steady state operation in LHD, Fusion Engineering and Design, Volume 101, 2015, pages 226-230.
For steady state operation, the feedback control of plasma density and heating power system was developed in the Large Helical Device (LHD). In order to achieve a record of the long pulse discharge, stable plasma density and heating power are needed.
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
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
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
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
Autor:
Ryosuke Seki, K. Saito, Takashi Mutoh, Hiroshi Kasahara, Goro Nomura, Tetsuo Seki, Satoru Sakakibara, Shuji Kamio
Publikováno v:
Citation S. Kamio et al 2018 Nucl. Fusion 58 126004
The ion cyclotron range of frequencies (ICRF) heating power injection in the hydrogen experiment in LHD was demonstrated after the upgrade of ICRF antennas. The ICRF wave couples and accelerates the energetic particles injected by perpendicular-NBIs