Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Akio KOMORI"'
Autor:
Lhd experimental groups, Masahiro Kobayashi, Mamoru Shoji, Akio Komori, Hiroshi Yamada, Suguru Masuzaki, Akio Sagara
Publikováno v:
To cite this article: Mamoru Shoji, Masahiro Kobayashi, Suguru Masuzaki, Akio Sagara, Hiroshi Yamada, Akio Komori & LHD Experimental Groups (2009) Design of a Closed Helical Divertor in LHD and the Prospect for Helical Fusion Reactors, Fusion Science and Technology, 56:2, 1001-1008, DOI: 10.13182/FST09-A9041
A new closed helical divertor configuration for efficient particle control and reduction of the heat load on the divertor plates is proposed. The closed divertor configuration practically utilizes an ergodic layer and magnetic field line configuratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::127a40007a07526012a06d0629d3e7c6
http://hdl.handle.net/10655/00012906
http://hdl.handle.net/10655/00012906
Autor:
Nobuyoshi Ohyabu, Suguru Masuzaki, Hiroshi Yamada, Tomohiro Morisaki, Masahiro Kobayashi, Akio Komori, Ryuichi Sakamoto
Publikováno v:
Fusion Science and Technology. 58:232-241
To achieve an improvement of plasma confinement by an effective edge plasma control, the local island divertor (LID) was originally proposed in the National Institute for Fusion Science in the earl...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e49a7b6e186b853ca4831caf7497bfb
https://doi.org/10.13182/fst10-a10810
https://doi.org/10.13182/fst10-a10810
Autor:
Masayuki Tokitani, Hiroshi Yamada, N. Noda, N. Yoshida, Naoko Ashikawa, Y. Ohtawa, Suguru Masuzaki, Mitsutaka Miyamoto, Mamoru Shoji, Makoto I. Kobayashi, Akio Komori, Akio Sagara, Kazutoshi Tokunaga, T. Fujiwara, Bun Tsuchiya, Shinji Nagata
Publikováno v:
Journal of Nuclear Materials. :173-176
In order to clarify the radiation damages caused by charge-exchanged helium particles, metal specimens were inserted into the first wall position by using material probe system in LHD, and then, exposed to the neutral beam heated helium plasmas (87 s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb17a7166b61e4440cf36c2db2a1a00d
https://doi.org/10.1016/j.jnucmat.2008.12.086
https://doi.org/10.1016/j.jnucmat.2008.12.086
Autor:
Kiyohiko Nishimura, Naoko Ashikawa, Yoshihiro Higashi, Tomoaki Hino, Akio Komori, Yuji Ymauchi
Publikováno v:
Vacuum. 83:493-496
Although wall conditioning using Ar glow discharges is occasionally employed to reduce helium and hydrogen retention in the inner walls of the vacuum chamber of nuclear fusion devices, the effect of an Ar glow discharge on the reduction of helium and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f9794e3a40660962653e55a6267637a
https://doi.org/10.1016/j.vacuum.2008.04.008
https://doi.org/10.1016/j.vacuum.2008.04.008
Autor:
Masayuki Yokoyama, Motoshi Goto, Katsuyoshi Tsumori, Yasuhiko Takeiri, Yoshihide Oka, Kenji Tanaka, Takashi Shimozuma, Hisamichi Funaba, Osamu Kaneko, Kazumichi Narihara, K. Nagaoka, Katsumi Ida, Osamu Motojima, Katsunori Ikeda, Shin Kubo, Akio Komori, Mikiro Yoshinuma, Masaki Osakabe, S. Morita, Shigeru Inagaki
Publikováno v:
Nuclear Fusion. 47:1078-1085
An increase in the ion temperature due to transport improvement has been observed in plasmas heated with high-energy negative-ion-based neutral beam injection (NBI), in which the electrons are dominantly heated, in the Large Helical Device. When cent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861d2a1f0137be921811e611bf1942c4
https://doi.org/10.1088/0029-5515/47/9/002
https://doi.org/10.1088/0029-5515/47/9/002
Autor:
Suguru Masuzaki, Mamoru Shoji, Masayuki Tokitani, Bun Tsuchiya, Shinji Nagata, Naoaki Yoshida, Tomohiro Morisaki, Akio Komori, Kazutoshi Tokunaga, Mitsutaka Miyamoto, Naoko Ashikawa, T. Fujiwara
Publikováno v:
Journal of Nuclear Materials. :443-447
To study retention properties of plasma particles in tungsten exposed to divertor plasmas, material probe experiments were carried out by exposing tungsten specimens to long pulse helium or hydrogen divertor plasma in LHD. After the exposure, the qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1059e068f56f58c20a5cca71e0cd9873
https://doi.org/10.1016/j.jnucmat.2007.01.040
https://doi.org/10.1016/j.jnucmat.2007.01.040
Autor:
Hideki Matsui, Satoru Tanaka, Masato Akiba, Satoshi Konishi, Kunioki Mima, Akio Komori, Mitsuru Kikuchi, Shinzaburo Matsuda
Publikováno v:
Journal of the Atomic Energy Society of Japan. 49:259-282
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::517a250910e35949e39b96fcf65e9ef2
https://doi.org/10.3327/jaesjb.49.4_259
https://doi.org/10.3327/jaesjb.49.4_259
Autor:
Hirotaka Chikaraishi, Shuichi Yamada, K. Seo, Shinsaku Imagawa, Shigeru Sudo, Ryuichi Sakamoto, N. Noda, Takeo Muroga, Toshiyuki Mito, T. Dolan, Satoshi Fukada, J. Miyazawa, Osamu Motojima, Osamu Kaneko, Akio Komori, Nobuyoshi Ohyabu, Takashi Mutoh, Akio Sagara, Tomohiro Morisaki, Kazuya Takahata, Osamu Mitarai, Kozo Yamazaki, Suguru Masuzaki, Hidetoshi Hashizume, Teruya Tanaka, Naoki Mizuguchi, Hiroshi Yamada
Publikováno v:
Fusion Engineering and Design. 81:2703-2712
An overview of conceptual design activities on the LHD-type helical reactor FFHR is presented, mainly focusing on optimization studies on the reactor size and the proposal of a long-life blanket. A major radius of around 15 m is the present candidate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcda0071d56da8230ed5e55a712e3250
https://doi.org/10.1016/j.fusengdes.2006.07.057
https://doi.org/10.1016/j.fusengdes.2006.07.057
Autor:
Tetsuo, OZAKI, Pavel, GONCHAROV, Tsuneo, AMANO, Ichihiro, YAMADA, Tomoya, SAIDA, Sadayoshi, MURAKAMI, Shigeru, SUDO, Shigeru, MORITA, Motoshi, GOTO, Kazumichi, NARIHARA, Kenji, TANAKA, Kazuo, KAWAHATA, Yoshio, NAGAYAMA, Katsumi, IDA, Mikiro, YOSHINUMA, Yoshihide, OKA, Masaki, OSAKABE, Yasuhiko, TAKEIRI, Katsuyoshi, TSUMORI, Katsunori, IKEDA, Osamu, KANEKO, Shin, KUBO, Takashi, SHIMOZUMA, Kunizo, OHKUBO, Kuninori, SATO, Naoki, TAMURA, Akihiro, MATSUBARA, Diana, KALININA, Mamoru, SHOJI, Shinji, KATO, Kenji, YAMAUCHI, Hideya, NAKANISHI, Mamoru, KOJIMA, Akio, KOMORI, Osamu, MOTOJIMA, Experimental Group, LHD
Publikováno v:
Journal of Plasma and Fusion Research SERIES = Journal of Plasma and Fusion Research SERIES. 7:22
In Large Helical Device (LHD), the discharges of high Z are often used in order to obtain high ion temperature. The ion density is relatively smaller than the electron density in high Z plasma. Therefore the high ion temperature can be obtained since
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::4faeaa51e5ebfde0bc0ac88fa5850094
http://hdl.handle.net/10655/2242
http://hdl.handle.net/10655/2242
Autor:
Akio Komori, Naoaki Yoshida, Kazutoshi Tokunaga, T. Fujiwara, Suguru Masuzaki, Masayuki Tokitani, Mitsutaka Miyamoto
Publikováno v:
Journal of Nuclear Materials. :742-746
Helium glow discharge cleaning (He-GDC) is frequently applied to reduce impurities like oxygen on the plasma facing materials in many plasma confinement devices, including large helical device (LHD). However, there are few reports which evaluated the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f41c8732b90deba118a4cc4df664e560
https://doi.org/10.1016/j.jnucmat.2004.04.181
https://doi.org/10.1016/j.jnucmat.2004.04.181