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Experimental observation of ion heating by mode-converted ion Bernstein waves in tokamak plasmas

X.J. Zhang, Y.P. Zhao, B.N. Wan, X.Z. Gong, Y. Lin, W.Y. Zhang, Y.Z. Mao, C.M. Qin, S. Yuan, X. Deng2012年被引用 7Nuclear FusionIF 3出版社

We report the experimental observation of ion heating by the mode-converted ion Bernstein waves (MC IBWs) in tokamak plasmas. The MC IBW is created from the fast waves launched from the high-field-side antenna in the HT-7 tokamak in plasmas consisting of deuterium majority, hydrogen minority and 7Li ions. Experimental evidence and numerical simulation show that the interaction between the MC IBW and 7Li ions at the first ion-cyclotron harmonic resonance of 7Li (i.e. ω = 2ΩLi-7) is the main mechanism for radio-frequency power deposition. By comparing with previous experiments of direct-launch IBW flow drive on tokamaks and existing theories, we hypothesize that this MC IBW and 7Li interaction also leads to the observed flow drive effect.

日本語訳

我々は、トカマクプラズマにおけるモード変換されたイオンバーンスタイン波(MC IBW)によるイオン加熱の実験的観測を報告する。MC IBWは、HT-7トカマクにおいて、重水素が主成分、水素が少数成分、および7Liイオンからなるプラズマ中で、高磁場側アンテナから放射された高速波から生成される。実験的証拠と数値シミュレーションは、MC IBWと7Liイオンとの間の7Liの第一イオンサイクロトロン高調波共鳴(すなわちω = 2ΩLi-7)における相互作用が、高周波電力の堆積の主要なメカニズムであることを示している。トカマクにおける直接放射IBWフロー駆動の従来の実験および既存の理論との比較により、我々は、このMC IBWと7Liの相互作用が観測されたフロー駆動効果も引き起こすという仮説を立てる。

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Bernstein waveIon heatingIon Bernstein wave
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