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Electron cyclotron wave damping for oblique propagation in hot plasmas

I. Fidone, G. Giruzzi, V. Krivenski, L.F. Ziebell1986年被引用 9Nuclear FusionIF 3出版社

The absorption is considered of electron cyclotron waves (ECW) propagating away from normal to the magnetic field in hot tokamak plasmas. The relativistic dispersion relation including Larmor radius effects is presented in a relatively simple and instructive form. It is shown that for the X-mode at down-shifted frequency and Te ≳ 20 keV, the resonant frequency lies in the subharmonic range of frequencies and the parallel velocity of the absorbing electrons is close to the speed of light. Also pointed out is the relevance of the parallel change in the kinetic energy and the momentum induced by the ECW of relativistic resonant electrons to the quasi-linear evolution of the electron distribution.

日本語訳

高温トカマクプラズマにおける、磁場に対して垂直方向からずれて伝播する電子サイクロトロン波(ECW)の吸収について考察する。ラーマー半径効果を含む相対論的分散関係を、比較的単純で理解しやすい形で提示する。ダウンシフト周波数におけるXモードについて、Te ≳ 20 keVの場合、共鳴周波数はサブハーモニック周波数領域に位置し、吸収する電子の平行速度は光速に近いことが示される。また、相対論的共鳴電子のECWによって誘起される平行方向の運動エネルギーおよび運動量の変化が、電子分布の準線形発展に対して持つ重要性も指摘される。

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Cyclotron waveElectron cyclotron wave
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