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Drift field-swelling instability in anisotropic plasmas

V A Marchenko, Yu M Nezlina, O A Pokhotelov1988年Plasma Physics and Controlled FusionIF 2.2出版社

The drift instabilities in one-component high pressure ( beta approximately 1) plasma with the electron temperature exceeding the ion temperature, Te>Ti, and the anisotropic particle distribution, are studied theoretically. The existence of two new types of instability is shown. The MHD drift field-swelling instability is excited in plasma with Te perpendicular to >Te//. The kinetic drift 'butterfly' instability having a small value of a threshold develops in plasma with Te//>Te perpendicular to . The instabilities may play an important role in dynamics of both laboratory and space plasmas.

日本語訳

電子温度がイオン温度を超え(Te>Ti)、粒子分布が異方的である高圧(β≈1)プラズマ中のドリフト不安定性を理論的に研究した。2つの新しいタイプの不安定性の存在が示された。MHDドリフト場膨張不安定性は、Te⊥>Te//のプラズマで励起される。閾値が小さい運動論的ドリフト「バタフライ」不安定性は、Te//>Te⊥のプラズマで発生する。これらの不安定性は、実験室プラズマと宇宙プラズマの両方のダイナミクスにおいて重要な役割を果たす可能性がある。

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