A Study on Low-Frequency Fluctuations Using New Azimuthal Probe Array in High-Density Helicon Linear Plasma
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概要
- 論文の詳細を見る
In a high-density plasma produced by helicon waves in a linear device, a change from the coherent to broad-band density fluctuations was observed on increasing the magnetic field. The coherent mode exhibited the drift wave features, and a steady oscillation state was observed. When the magnetic field was increased, the fluctuation level increased, and the higher azimuthal Fourier components were excited. When the spectrum became broad at the higher magnetic field, the behavior of the azimuthal structure became complex and changed rapidly with time. The analysis performed using the movable probe array (48ch.-probe) decomposed the short-lived structure into poloidal mode-frequency space and indicated mode-mode coupling in the broad-band spectrum.
- 社団法人 プラズマ・核融合学会の論文
著者
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Nagashima Yoshihiko
Research Institute For Applied Mechanics Kyushu University
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Fujisawa Akihide
National Institute For Fusion Science
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YAGI Masatoshi
Research Institute for Applied Mechanics, Kyushu University
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Shinohara Shunjiro
Interdisciplinary Graduate School Of Engineering Science Kyushu University
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KASUYA Naohiro
National Institute for Fusion Science
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Inagaki Shigeru
Research Institute For Applied Mechanics Kyushu University
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Yagi Masatoshi
Research Instittue For Applied Mechanics Kyushu University
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Itoh Sanae-i.
Research Instittue For Applied Mechanics Kyushu University
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Itoh Kimitaka
National Inst. For Fusion Sci. Gifu
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Kawai Yoshinobu
Research Information Center Institute Of Plasma Physics Nagoya University
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Terasaka Kenichiro
Interdisciplinary Graduate School Of Engineering Science Kyushu University
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YAMADA Takuma
Research Institute for Applied Mechanics, Kyushu University
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KAWAGUCHI Masato
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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MARUTA Takashi
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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NAGASHIMA Yoshihiko
Research Institute for Applied Mechanics, Kyushu University
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TERASAKA Kenichiro
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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