ICRF long-pulse discharge and interaction with a chamber wall and antennas in LHD

被引：44

作者：

Saito, K.

Mutoh, T.

Kumazawa, R.

Seki, T.

Nakamura, Y.

Ashikawa, N.

Sato, K.

Shoji, M.

Masuzaki, S.

Watari, T.

Ogawa, H.

Takeuchi, H.

Kasahara, H.

Shimpo, F.

Nomura, G.

Yokota, M.

Takahashi, C.

Komori, A.

Zhao, Y.

Yoon, J. S.

Kwak, J. G.

机构：

[1] Natl Inst Fus Sci, Toki, Japan

[2] Grad Univ Adv Studies, Hayama, Japan

[3] Nagoya Univ, Nagoya, Aichi, Japan

[4] Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China

[5] Korea Atom Energy Res Inst, Taejon, South Korea

来源：

JOURNAL OF NUCLEAR MATERIALS | 2007年 / 363卷 / 1-3期

关键词：

ICRF; LHD; outgassing; RF; steady state;

D O I：

10.1016/j.jnucmat.2007.01.269

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During long-pulse discharges by minority ion cyclotron range of frequencies (ICRF) heating (majority: He++ and minority: H+) in the large helical device (LHD), phenomena of hot spots on antenna side protectors, localized divertor plate temperature increase and sparks from inner side of torus were observed. Plasma duration time was limited by the gradual or sudden density increase. The gradual density increase was due to outgassing from the graphite divertor plates or antenna side protectors with hot spots. The spark resulted in sudden density increase. It is thought that the localized divertor plate temperature increase and sparks are attributed to the high-energy ions accelerated in front of ICRF antennas. By suppressing these phenomena the world largest input energy was achieved. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1323 / 1328

页数：6

共 17 条

[1] Hot spot phenomena on Tore Supra ICRF antennas investigated by optical diagnostics [J].

Colas, L ;

Costanzo, L ;

Desgranges, C ;

Brémond, S ;

Bucalossi, J ;

Agarici, G ;

Basiuk, V ;

Beaumont, B ;

Bécoulet, A ;

Nguyen, F .

NUCLEAR FUSION, 2003, 43 (01) :1-15

[2] Modelling of mixed-phasing antenna-plasma interactions on JET A2 antennas [J].

D'Ippolito, DA ;

Myra, JR ;

Ryan, PM ;

Righi, E ;

Heikkinen, J ;

Lamalle, PU ;

Noterdaeme, JM .

NUCLEAR FUSION, 2002, 42 (12) :1357-1365

[3] Long-pulse discharges by synergy of LHW and IBW heating in the HT-7 tokamak [J].

Gao, X ;

Li, J ;

Yang, Y ;

Xie, JK ;

Luo, JR ;

Zhao, JY ;

Gong, XZ ;

Hu, LQ ;

Zhang, XD ;

Shi, YJ ;

Wan, BN ;

Tanaka, K ;

Sakamoto, R ;

Zhao, YP ;

Kuang, GL ;

Hu, JS ;

Asif, M ;

Jie, YX ;

Liu, HQ ;

Liu, J ;

Xu, Q ;

Gao, L .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :835-838

[4] Recent results from the large helical device [J].

Komori, A ;

Ohyabu, N ;

Yamada, H ;

Kaneko, O ;

Kawahata, K ;

Ida, K ;

Nakamura, Y ;

Akiyama, T ;

Ashikawa, N ;

Emoto, M ;

Funaba, H ;

Goncharov, P ;

Goto, M ;

Idei, H ;

Ikeda, K ;

Inagaki, S ;

Isobe, M ;

Kawazome, H ;

Khlopenkov, K ;

Kobuchi, T ;

Kostrioukov, A ;

Kubo, S ;

Kumazawa, R ;

Liang, Y ;

Masuzaki, S ;

Minami, T ;

Miyazawa, J ;

Morisaki, T ;

Morita, S ;

Murakami, S ;

Muto, S ;

Mutoh, T ;

Nagayama, Y ;

Nakanishi, H ;

Narihara, K ;

Narushima, Y ;

Nishimura, K ;

Noda, N ;

Notake, T ;

Nozato, H ;

Ohdachi, S ;

Oka, Y ;

Osakabe, M ;

Ozaki, T ;

Peterson, BJ ;

Sagara, A ;

Saida, T ;

Saito, K ;

Sakakibara, S ;

Sakamoto, R .

PLASMA PHYSICS AND CONTROLLED FUSION, 2003, 45 (05) :671-686

[5] Long-pulse plasma discharge on the Large Helical Device [J].

Kumazawa, R ;

Mutoh, T ;

Saito, K ;

Seki, T ;

Nakamura, Y ;

Kubo, S ;

Shimozuma, T ;

Yoshimura, Y ;

Igami, H ;

Ohkubo, K ;

Takeiri, Y ;

Oka, Y ;

Tsumori, K ;

Osakabe, M ;

Ikeda, K ;

Nagaoka, K ;

Kaneko, O ;

Miyazawa, J ;

Morita, S ;

Narihara, K ;

Shoji, M ;

Masuzaki, S ;

Kobayashi, M ;

Ogawa, H ;

Goto, M ;

Morisaki, T ;

Peterson, BJ ;

Sato, K ;

Tokuzawa, T ;

Ashikawa, N ;

Nishimura, K ;

Funaba, H ;

Chikaraishi, H ;

Watari, T ;

Watanabe, T ;

Sakamoto, M ;

Ichimura, M ;

Takase, Y ;

Notake, T ;

Takeuchi, N ;

Torii, Y ;

Shimpo, F ;

Nomura, G ;

Takahashi, C ;

Yokota, M ;

Kato, A ;

Zhao, Y ;

Kwak, JG ;

Yoon, JS ;

Yamada, H .

NUCLEAR FUSION, 2006, 46 (03) :S13-S21

[6] Ion cyclotron range of frequency heating experiments on the large helical device and high energy ion behavior [J].

Kumazawa, R ;

Mutoh, T ;

Seki, T ;

Watari, T ;

Saito, K ;

Torii, Y ;

Shimpo, F ;

Nomura, G ;

Yokota, M ;

Kato, A ;

Hartmann, DA ;

Zhao, Y ;

Fukuyama, A ;

Okada, H ;

Ohkubo, K ;

Sato, M ;

Kubo, S ;

Shimozuma, T ;

Idei, H ;

Yoshimura, Y ;

Notake, T ;

Takita, Y ;

Kobayashi, S ;

Itoh, S ;

Mizuno, Y ;

Kaneko, O ;

Takeiri, Y ;

Oka, Y ;

Tsumori, K ;

Osakabe, M ;

Ikeda, K ;

Yamamoto, S ;

Kawamoto, T ;

Asano, E ;

Ohyabu, N ;

Kawahata, K ;

Komori, A ;

Yamada, H ;

Akaishi, K ;

Ashikawa, N ;

Emoto, M ;

Funaba, H ;

Goto, M ;

Ida, K ;

Inagaki, S ;

Inoue, N ;

Isobe, M ;

Krasilnikov, A ;

Masuzaki, S ;

Minami, T .

PHYSICS OF PLASMAS, 2001, 8 (05) :2139-2147

[7]

KUMAZAWA R, 1996, P 19 S FUS TECHN, V1, P617

[8]

Motojima O, 2004, FUSION SCI TECHNOL, V46, P1

[9]

MUTOH T, 1998, J PLASMA FUSION RES, V1, P334

[10]

MUTOH T, 2005, J PLASMA FUSION RES, V81, P229

← 1 2 →