Time Evolution Measurement of Ion Energy Spectrum in Reversed Field Pinch Plasmas
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- MAKI Shinsuke
- Graduate School of Engineering, Nagoya University
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- WATARAI Nobuyuki
- Graduate School of Engineering, Nagoya University
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- YAMBE Kiyoyuki
- Graduate School of Engineering, Nagoya University
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- SEKIKAWA Junya
- Faculty of Engineering, Shizuoka University
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- ARIMOTO Hideki
- Graduate School of Engineering, Nagoya University
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- SATO Koichi
- Graduate School of Engineering, Nagoya University
Bibliographic Information
- Other Title
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- 逆転磁場ピンチプラズマにおけるイオンエネルギースペクトルの時間発展計測
- ギャクテン ジバ ピンチプラズマ ニ オケル イオンエネルギースペクトル ノ ジカン ハッテン ケイソク
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Abstract
The energy distribution of neutral particles emitted from STP-3(M) reversed field pinch (RFP) plasma has been investigated by a neutral particle analyzer (NPA) using a two-channel energy detector with the time resolution of 0.5μs over the whole duration of the discharge. NPA data show a high energy tail as well as the bulk ion distribution. It is found that the ion temperatures of bulk and high energy tail component have reached to the maximum before reversed magnetic field configuration, and that the tail temperature increases in the quiet period (QP). Furthermore, we found that the high energy ion density increases in both the relaxation period and the QP. The ion energy confinement time evaluated from magnetic reconnection model and the obtained ion energy spectrum is found to be about 720μs much longer than the electron energy confinement time 60-100μs, when ion heating mechanisms are discussed.
Journal
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- Journal of Plasma and Fusion Research
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Journal of Plasma and Fusion Research 80 (6), 516-522, 2004
The Japan Society of Plasma Science and Nuclear Fusion Research
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Details 詳細情報について
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- CRID
- 1390001206513498496
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- NII Article ID
- 110003827721
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- NII Book ID
- AN10401672
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- COI
- 1:CAS:528:DC%2BD2cXntVymsrY%3D
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- NDL BIB ID
- 7011435
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- ISSN
- 09187928
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed