Gyrokinetic stability of electron-positron-ion plasmas

被引：15

作者：

Mishchenko, A. ^{[1
]}

Zocco, A. ^{[1
]}

Helander, P. ^{[1
]}

Koenies, A. ^{[1
]}

机构：

[1] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany

来源：

JOURNAL OF PLASMA PHYSICS | 2018年 / 84卷 / 01期

关键词：

plasma instabilities; plasma waves;

D O I：

10.1017/S0022377818000181

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The gyrokinetic stability of electron-positron plasmas contaminated by an ion (proton) admixture is studied in a slab geometry. The appropriate dispersion relation is derived and solved. Stable K-modes, the universal instability, the ion-temperature-gradient-driven instability, the electron-temperature-gradient-driven instability and the shear Alfven wave are considered. It is found that the contaminated plasma remains stable if the contamination degree is below some threshold and that the shear Alfven wave can be present in a contaminated plasma in cases where it is absent without ion contamination.

引用

页数：20

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