Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Shuji Kamio"'
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:
Makoto I. Kobayashi, Sachiko Yoshihashi, Kunihiro Ogawa, Mitsutaka Isobe, Siriyaporn Sangaroon, Shuji Kamio, Yutaka Fujiwara, Masaki Osakabe
Publikováno v:
Fusion Engineering and Design. 179:113117
Autor:
Akira EJIRI, Hibiki YAMAZAKI, Yuichi TAKASE, Naoto TSUJII, Osamu WATANABE, Yi PENG, Kotaro IWASAKI, Yuki AOI, Yongtae KO, Kyohei MATSUZAKI, James H.P. RICE, Yuki OSAWA, Charles P. MOELLER, Yasuo YOSHIMURA, Hiroshi KASAHARA, Kenji SAITO, Tetsuo SEKI, Shuji KAMIO
Publikováno v:
Plasma and Fusion Research. 17:1402037-1402037
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:
Shuji Kamio, Masashi Kisaki, Masaki Osakabe, Katsunori Ikeda, Kenichi Nagaoka, Y. Fujiwara, Katsuyoshi Tsumori, Haruhisa Nakano
Publikováno v:
Nuclear Fusion. 62:056016
Improvement of deuterium injection power in the negative-ion-based NBIs (n-NBIs) for the Large Helical Device (LHD) are reported. Co-extracted electron current at acceleration of deuterium negative ions (D− ions) limits the injection power. The ele
Autor:
Shuji Kamio, Ryosuke Seki, Y. Fujiwara, H. Nuga, Takeo Nishitani, Masaki Osakabe, Kunihiro Ogawa, Masayuki Yokoyama, Mitsutaka Isobe
Publikováno v:
Journal of Plasma Physics. 86
The neutral beam (NB) fast ion confinement in the Large Helical Device (LHD) is studied for several full field ( $B_{t}\sim 2.75~\text{T}$ ) magnetic configurations by a combination of neutron measurement and simulations. To investigate the NB fast i
Autor:
Shuji Kamio, Y. Haba, Kenichi Nagaoka, Haruhisa Nakano, K. Ikeda, Y. Fujiwara, Katsuyoshi Tsumori, M. Osakabe, S. Masaki, Masashi Kisaki
Publikováno v:
The Review of scientific instruments. 90(11)
Second deuterium operation of the negative ion based neutral beam injector was performed in 2018 in the large helical device. The electron and ion current ratio improves to Ie/Iacc(D) = 0.31 using the short extraction gap distance of 7 mm between the
Publikováno v:
Plasma and Fusion Research. 16:1402096-1402096
Autor:
M. Isobe, H. Nuga, H. Yamaguchi, Eiji Takada, Masaki Osakabe, Jungmin Jo, Shuji Kamio, Makoto I. Kobayashi, Kunihiro Ogawa, Ryosuke Seki, S. Murakami, S. Sangaroon, Y. Fujiwara
Publikováno v:
K. Ogawa et al 2021 Nucl. Fusion 61 096035
Understanding energetic particle transport due to magnetohydrodynamic instabilities excited by energetic particles is essential to apprehend alpha particle confinement in a fusion burning plasma. In the large helical device (LHD), beam ion and deuter
Autor:
Kunihiro Ogawa, Ryohsuke Seki, Mitsutaka Isobe, Sadayoshi Murakami, Masayuki Yokoyama, Masaki Osakabe, Shuji Kamio, Y. Fujiwara, H. Yamaguchi, H. Nuga
Publikováno v:
Plasma and Fusion Research. 16(Special Issue 1):2402052
Neutral beam (NB) fast-ion loss mechanisms in the large helical device (LHD) are investigated by the combination of the neutron measurement, the classical slowing-down simulation, and the neo-classical guiding center orbit following simulation. It is