| Autor: |
Hideya Nakanishi, Masahiko Emoto, K.Y. Watanabe, N. Inoue, Ryuichi Sakamoto, Shin Kubo, S. Murakami, Tomo-Hiko Watanabe, Y. Zhao, Masayuki Yokoyama, Osamu Kaneko, Kenya Akaishi, Shinichiro Kado, Dirk Hartmann, Yuki Torii, Mamoru Shoji, Motoshi Goto, Hisamichi Funaba, Hiroshi Yamada, T. Kobuchi, Ryuhei Kumazawa, K. Nishimura, Katsumi Ida, M. Fujiwara, Ichihiro Yamada, T. Watari, Akio Komori, Shigeru Inagaki, Kazuo Toi, Katsunori Ikeda, Akio Sagara, J. Miyazawa, Hiroshi Idei, Osamu Motojima, M. Sato, T. Ozaki, Kazumichi Narihara, Yasuji Hamada, Kazuo Kawahata, A. V. Krasilnikov, Yasuo Yoshimura, Nobuyoshi Ohyabu, Yoshio Nagayama, N. Noda, Tomohiro Morisaki, Byron J. Peterson, Takashi Minami, Hajime Suzuki, S. Morita, N. Ashikawa, H. Sasao, Y. Nakamura, Kuninori Sato, Soichiro Yamaguchi, Satoshi Ohdachi, Kimitaka Itoh, P.C. De Vries, Mamiko Sasao, S. Yamamoto, Yasuhiko Takeiri, Satoru Sakakibara, Yoshihide Oka, Sadatsugu Muto, Masaki Osakabe, Shigeru Sudo, Mitsutaka Isobe, Kenji Saito, Tetsuo Seki, K. Yamazaki, Suguru Masuzaki, Fujio Shimpo, Tokihiko Tokuzawa, Takashi Mutoh, Kunizo Ohkubo, Katsuyoshi Tsumori, Kenji Tanaka, Goro Nomura, Atsushi Fukuyama, Mitsuhiro Yokota, Takashi Shimozuma |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
Nuclear Fusion. 41:1021-1035 |
| ISSN: |
0029-5515 |
| DOI: |
10.1088/0029-5515/41/8/306 |
| Popis: |
The ICRF heating experiments conducted in 1999 in the third experimental campaign on LHD are reported, with an emphasis on the optimization of the heating regime. Specifically, an exhaustive study of seven different heating regimes was carried out by changing the radiofrequency relative to the magnetic field intensity, and the dependence of the heating efficiency on H minority concentration was investigated. It was found in the experiment that both ion and electron heating are attainable with the same experimental set-up by properly choosing the frequency relative to the magnetic field intensity. In the cases of both electron heating and ion heating, the power absorption efficiency depends on the minority ion concentration. An optimum minority concentration exists in the ion heating case while, in the electron heating case, the efficiency increases with concentration monotonically. A simple model calculation is introduced to provide a heuristic understanding of these experimental results. Among the heating regimes examined in this experiment, one of the ion heating regimes was finally chosen as the optimized heating regime and various high performance discharges were realized with it. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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