| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-08-29 |
| タイトル |
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タイトル |
Observation of ion-cyclotron-range-of-frequency wave emission in electron-cyclotron-resonance-heated tokamak plasma |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Sumida Shuhei
Shinohara Koji
Ichimura Makoto
Bando Takahiro
Andreas Bierwage
Kobayashi Takayuki
Yamazaki Hibiki
Moriyama Shinichi
Ide Shunsuke
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Emissions of ion-cyclotron-range-of-frequency (ICRF) waves have been observed in a solely electron-cyclotron-resonance-heated plasma, namely no fast-ion plasma, on the JT-60U tokamak for the first time. The mode frequencies are around the ion cyclotron frequency at the low-field-side plasma edge. The waves are considered to be electromagnetic and standing waves from poloidal and toroidal phase differences measured with ICRF antennas. Wave characteristics of the ICRF emissions such as frequency, polarization and propagation are similar to those of edge-ion cyclotron emissions driven by neutral-beam-injected fast ions although driving sources are completely different. From analysis of the resonance conditions, this ICRF wave emission is considered to be driven by the electron-cyclotron-resonance-heated fast electrons via the Cherenkov resonance condition. When ion cyclotron emission is used for fast ion diagnostics, such fast-electron-driven ICRF wave emission may complicate its interpretation during electron cyclotron resonance heating. |
| 書誌情報 |
Plasma Physics and Controlled Fusion
巻 65,
号 7,
p. 075002,
発行日 2023-05
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| 出版者 |
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出版者 |
IOP Publishing |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0741-3335 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/1361-6587/acd477 |
