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Landau damping in a magnetic quadrupole

P Uddholm, U -H Hwang, J E Willett, Y Aktas1989年Plasma Physics and Controlled FusionIF 2.2出版社

Electrostatic waves with a frequency which is small compared to the ion cyclotron frequency in a plasma confined by a magnetic quadrupole are considered. An equation is derived for the growth or damping rate due to wave-particle (Landau) resonances with the effects of temperature gradients and finite Larmor radius included. Ion Landau damping of the fundamental drift mode in the UMIST quadrupole is calculated and its effect on the net growth rate is shown.

日本語訳

磁気四重極によって閉じ込められたプラズマ内の、イオンサイクロトロン周波数に比べて小さい周波数を持つ静電波が考察される。温度勾配と有限ラーマー半径の効果を含めて、波動-粒子(ランダウ)共鳴による成長率または減衰率の方程式が導出される。UMIST四重極における基本ドリフトモードのイオンランダウ減衰が計算され、その正味成長率への影響が示される。

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Landau damping
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