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Profile control with lower hybrid waves on ASDEX

F.X. Soldner, F. Leuterer, R. Bartiromo, S. Bernabei, R. Buchse, O. Gehre, R.W. Harvey, M. Kornherr, K. McCormick, H.D. Murmann1994年被引用 37Nuclear FusionIF 3出版社

Controlled modification of the radial profiles of the plasma current, electron temperature and density was achieved in the ASDEX divertor tokamak with lower hybrid waves. Variation of the lower hybrid power and current deposition profiles was accomplished by tailoring the launched wave spectra or by compound antenna phasing. The current and temperature profiles could be largely decoupled. MHD modes were strongly influenced by the current profile modifications. Sawteeth and m=1 modes were suppressed up to the density limit of lower hybrid current drive on ASDEX (ne=5*1019 m-3). The electron temperature profile peaked in this case and the global confinement was improved

日本語訳

ASDEXダイバータートカマクにおいて、低混成波を用いてプラズマ電流密度分布、電子温度分布、および密度分布の径方向プロファイルの制御的改変が達成された。低混成波パワーと電流沈着分布の変化は、入射波スペクトルの調整または複合アンテナの位相制御によって実現された。電流分布と温度分布は大幅に非結合化することが可能であった。MHDモードは電流分布の改変によって強く影響を受けた。ASDEXにおける低混成波電流駆動の密度限界(ne=5×10^19 m^-3)まで、鋸歯状振動およびm=1モードの抑制が達成された。この条件下では電子温度分布がピーク化し、全体閉じ込めが改善された。

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