Plasma Current Sustainment by RF Power in ECH Start-up Plasma in the TST-2 Spherical Tokamak
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概要
- 論文の詳細を見る
In the TST-2 spherical tokamak, a non-inductive start-up plasma produced by electron cyclotron heating (ECH) at 2.45 GHz (3-5 kW) is sustained by RF wave heating at 21 MHz (10-24 kW). A current jump, which occurs at a certain time when only ECH is used, can be induced earlier by the RF heating, and a constant plasma current is sustained even after the ECH power is turned off. The plasma current is sustained in both hydrogen and deuterium plasmas, as long as the RF power exceeds a threshold level, which is lower for deuterium plasma. The maximum sustainment time by the the RF power alone was 40 ms, limited by the RF pulse length. According to CCD camera images of the total plasma light, the major radii are almost the same, but the RF-sustained plasma has a more peaked profile, compared with the distribution of an ECH-sustained plasma.
- 社団法人 プラズマ・核融合学会の論文
著者
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Takase Yuichi
Graduate School Of Frontier Sciences The Univ. Of Tokyo
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Nagashima Yoshihiko
Graduate School Of Frontier Sciences The Univ. Of Tokyo
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Ejiri Akira
Graduate School Of Frontier Science University Of Tokyo
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Yamaguchi Takashi
Graduate School Of Engineering Dept. Of Metallurgy University Of Tokyo
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Watanabe Osamu
Graduate School Of Engineering Tokyo Metropolitan University
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Sasaki Makoto
Graduate School Of Environmental Earth Science Hokkaido University
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Yamada Kotaro
Graduate School of Advanced Science of Matter, Hiroshima University
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SASAKI Makoto
Graduate School of Sciences, The University of Tokyo, Bunkyo 113-0033, Japan
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SUGIYAMA Junichi
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
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OOSAKO Takuya
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
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ADACHI Yuuki
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
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TOJO Hiroshi
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
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KAINAGA Soichiro
Graduate School of Sciences, The University of Tokyo, Bunkyo 113-0033, Japan
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MASUDA Tetsuya
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
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TOJO Hiroshi
Graduate School of Frontier Sciences, The University of Tokyo
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MASUDA Tetsuya
Graduate School of Frontier Sciences, The University of Tokyo
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SUGIYAMA Junichi
Graduate School of Frontier Sciences, The University of Tokyo
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KAINAGA Soichiro
Graduate School of Science, The University of Tokyo
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OOSAKO Takuya
Graduate School of Frontier Sciences, The University of Tokyo
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TAKASE Yuichi
Graduate School of Frontier Science, University Tokyo, Kashiwa 277-8561, Japan
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NAGASHIMA Yoshihiko
Graduate School of Frontier Science, The University of Tokyo, Kashiwa 277-8561, Japan
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