Simultaneous Measurements of Plasma Potential and Density Fluctuations in a Bumpy Torus by a Heavy Neutral Beam Probe
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概要
- 論文の詳細を見る
A heavy neutral beam probe was developed for simultaneous measurements of local space potential and density fluctuations in a plasma. It was applied to both electron cyclotron heated (ECH) and radio frequency heated (RF) plasmas in the bumpy torus NBT-1M, and the feasibility of this method was successfully demonstrated by observing a low frequency m=1 interchange mode which was rotating poloidally at a frequency near the E × B drift frequency. It was shown that use of this probe results in extension of the range of fluctuation measurement by beam probe technique to relatively low temperature plasmas. It is applicable to a plasma with a strong RF field with which Langmuir probes cannot be used.
- 社団法人応用物理学会の論文
- 1993-04-15
著者
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IGUCHI Harukazu
National Institution of Fusion Science, Toki, Gifu 509-5292, Japan
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SHOJI Tadayoshi
Department of Electronics, Tohoku Institute of Technology
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Iguchi Harukazu
National Institute For Fusion Science
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SHOJI Tatsuo
Plasma Science Center, Nagoya University
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FUJITA Junji
National Institute for Fusion Science
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Shoji T
Department Of Electronics Tohoku Institute Of Technology
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Shoji Tatsuo
Plasma Science Center Nagoya University
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Ikegami Hideo
National Institute For Fusion Science
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TAKASUGI Keiichi
Atomic Energy Research Institute, Nihon University
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Takasugi Keiichi
Atomic Energy Research Institute Nihon University
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