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Matsunaga, Go; Takechi, Manabu; Aiba, Nobuyuki; Kurita, Genichi; Sakamoto, Yoshiteru; Koide, Yoshihiko; Isayama, Akihiko; Suzuki, Takahiro; Fujita, Takaaki; Oyama, Naoyuki; et al.
Plasma and Fusion Research (Internet), 4, p.051_1 - 051_7, 2009/11
no abstracts in English
Fujimoto, Kayoko; Nakano, Tomohide; Kubo, Hirotaka; Sawada, Keiji*; Takizuka, Tomonori; Kawashima, Hisato; Shimizu, Katsuhiro; Asakura, Nobuyuki
Plasma and Fusion Research (Internet), 4, p.025_1 - 025_7, 2009/08
The volume recombination in detached divertor plasmas is a key process to reduce the ion flux to the divertor plates. Two-dimensional measurement is one of the ways to investigate a spatial structure of the volume recombination. In this work, the deuterium Balmer-series lines from a detached divertor plasma were observed two-dimensionally with a spatial resolution of 1 cm and were reconstructed into two-dimensional emissivities with a tomography technique. The ratio of the D
to the D
emissivity was compared to that calculated by the collisional-radiative model. This ratio could not be explained only by the excitation of D by electron impact, indicating that the volume recombination contributed to the D emission. This is the case for the region above the inner strike point with 8 cm and 4 cm, respectively, in the r- and the z-direction on the poloidal cross-section.
Ochiai, Kentaro; Iida, Hiromasa; Sato, Satoshi; Takakura, Kosuke; Konno, Chikara
Purazuma, Kaku Yugo Gakkai-Shi, 84(9), p.594 - 599, 2008/09
no abstracts in English
Ishii, Yasutomo; Smolyakov, A. I.*
Plasma and Fusion Research (Internet), 3, p.048_1 - 048_7, 2008/08
no abstracts in English
Kamada, Masaki; Hanada, Masaya; Kobayashi, Kaoru; Ikeda, Yoshitaka; Grisham, L. R.*; Jiang, W.*
no journal, ,
no abstracts in English
Kajiwara, Ken; Kasugai, Atsushi; Takahashi, Koji; Kobayashi, Noriyuki; Sakamoto, Keishi
no journal, ,
no abstracts in English
Kobayashi, Takayuki; Moriyama, Shinichi; Yokokura, Kenji; Hasegawa, Koichi; Suzuki, Sadaaki; Hiranai, Shinichi; Sato, Fumiaki; Suzuki, Takashi; Fujii, Tsuneyuki
no journal, ,
no abstracts in English
Moriyama, Shinichi; Kobayashi, Takayuki; Yokokura, Kenji; Shimono, Mitsugu; Hasegawa, Koichi; Sawahata, Masayuki; Suzuki, Sadaaki; Terakado, Masayuki; Hiranai, Shinichi; Igarashi, Koichi; et al.
no journal, ,
no abstracts in English
Kondoh, Takashi; Sasao, Mamiko*; Sakakita, Hajime*; Ozaki, Tetsu*; Ochiai, Kentaro
no journal, ,
no abstracts in English
Ogawa, Hiroaki; Sugie, Tatsuo; Kasai, Satoshi*; Katsunuma, Atsushi*; Hara, Hirotsugu*; Takeyama, Norihide*
no journal, ,
no abstracts in English
Kasugai, Atsushi; Sakamoto, Keishi; Takahashi, Koji; Kajiwara, Ken; Ikeda, Yukiharu; Komori, Shinji; Kobayashi, Noriyuki; Kariya, Tsuyoshi*; Minami, Ryutaro*; Mitsunaka, Yoshika*
no journal, ,
no abstracts in English
Kajita, Shin; Hatae, Takaki
no journal, ,
no abstracts in English
Yamaguchi, Taiki; Kawano, Yasunori; Fujieda, Hirobumi; Kurihara, Kenichi; Sugihara, Masayoshi*; Kusama, Yoshinori
no journal, ,
no abstracts in English
Yokokura, Kenji; Moriyama, Shinichi; Kobayashi, Takayuki; Hasegawa, Koichi; Suzuki, Sadaaki; Hiranai, Shinichi; Sato, Fumiaki; Suzuki, Takashi; Fujii, Tsuneyuki
no journal, ,
no abstracts in English
Takahashi, Koji; Kajiwara, Ken; Kobayashi, Noriyuki; Kasugai, Atsushi; Sakamoto, Keishi
no journal, ,
no abstracts in English
Ishikawa, Masao; Kondoh, Takashi; Nishitani, Takeo; Kusama, Yoshinori
no journal, ,
The microfission chambers provide time-resolved measurements of the global neutron source strength and fusion power from ITER. So far, the microfission chamber for low power operation (measurement range : fusion power of 100 W - 1 kW) has been designed and developed together with that for high power operation (measurement range: fusion power of 1 kW - 1 GW). In this design work, the placing route of the MI cables from the installation position of the microfission chamber to the feed-through in the upper port is designed. As far placing of the MI cable, since the MI cable is filled with Ar gas at 14.6 atom, the double pipe structure that the outer pipe covers the MI cable is adopted in order to prevent the gas leak into the vacuum vessel. The exhaust system of the double pipe is also designed for detection and exhaust of the leaked Ar gas.
Kusama, Yoshinori; Sasao, Mamiko*
no journal, ,
no abstracts in English
Nishiyama, Tomokazu; Okano, Fuminori; Miyo, Yasuhiko; Sato, Yoji; Honda, Masao*; Sakasai, Akira; Sato, Masayasu; Meguro, Masashi*; Tajika, Masaharu*
no journal, ,
no abstracts in English
Kondo, Hiroo*; Kanemura, Takuji*; Yamaoka, Nobuo*; Miyamoto, Seiji*; Ida, Mizuho; Nakamura, Hiroo; Matsushita, Izuru*; Muroga, Takeo*; Horiike, Hiroshi*
no journal, ,
no abstracts in English
