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Current generation by monochromatic electromagnetic waves

V.S. Belikov, Ya.I. Kolesnichenko, I.S. Plotnik1983年被引用 1Nuclear FusionIF 3出版社

The generation of longitudinal currents in a magnetically confined plasma with travelling monochromatic electromagnetic waves of finite amplitude propagating at some angle to the external magnetic field is considered. By averaging over the particle cyclotron gyration period, the kinetic equation for the distribution function of electrons interacting with an electromagnetic wave is derived. This equation is solved for the case of low-frequency waves, on the assumption that the bounce period of electrons trapped by the wave field is small compared to the typical times of Coulomb collisions (in which case, the driving current is largest). From the solution obtained, analytic expressions for the driving current and the absorbed power, which are valid for a wide range of wave phase velocities, are found. The current drive method considered and the method using the wave packet are compared.

日本語訳

外部磁場に対してある角度で伝播する有限振幅の進行単色電磁波を伴う磁場閉じ込めプラズマにおける縦方向電流の生成が考察される。粒子のサイクロトロン回転周期にわたって平均化することにより、電磁波と相互作用する電子の分布関数に対する運動論的方程式が導出される。この方程式は、低周波波の場合について、波の場に捕捉された電子のバウンス周期がクーロン衝突の典型的な時間と比較して小さいという仮定の下で解かれる(この場合、駆動電流は最大となる)。得られた解から、広い範囲の波の位相速度に対して有効な、駆動電流と吸収電力の解析的表現が見出される。考察された電流駆動法と、波束を用いる方法とが比較される。

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Electromagnetic waves
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