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Full absorption of third harmonic ECH in TCV tokamak plasmas in the presence of second harmonic ECCD

S. Alberti, T.P. Goodman, M.A. Henderson, A. Manini, J.-M. Moret, P. Gomez, P. Blanchard, S. Coda, O. Sauter, Y. Peysson2002年被引用 31Nuclear FusionIF 3出版社

An experimental study of the extraordinary mode (X mode) absorption at the third electron cyclotron harmonic frequency has been performed on the TCV tokamak in plasmas preheated by X mode at the second harmonic. Full single pass absorption of injected X3 power was measured with X2 preheating in co-current drive (CO-ECCD). The measured absorption exceeds that predicted by the linear ray tracing code TORAY-GA by more than a factor of 2 for the CO-ECCD case. Experimental evidence indicates that a large fraction of the X3 power is absorbed by electrons in an energetic tail created by the X2 ECCD preheating.

日本語訳

TCVトカマクにおいて、第2高調波でのXモードにより予熱されたプラズマ中で、第3電子サイクロトロン高調波周波数における異常モード(Xモード)の吸収に関する実験研究が行われた。コ・カレント駆動(CO-ECCD)におけるX2予熱を用いて、注入されたX3パワーの完全な単一通過吸収が測定された。測定された吸収は、CO-ECCDの場合において、線形光線追跡コードTORAY-GAYによる予測値を2倍以上上回る。実験的証拠は、X3パワーの大部分が、X2 ECCD予熱によって生成された高エネルギー尾部の電子によって吸収されることを示している。

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Electron cyclotron heatingTCVElectron cyclotron current drive
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