Electron Landau damping in toroidal plasma with Solov'ev equilibrium

被引：0
|
作者：
Grishanov, N. I. [1 ,2 ]
Azarenkov, N. A. [1 ]
机构：
[1] Kharkov Natl Univ, UA-61022 Kharkov, Ukraine
[2] Ukrainian State Acad Railway Transport, UA-61050 Kharkov, Ukraine
来源：
PLASMA PHYSICS REPORTS | 2013年 / 39卷 / 12期
关键词：
LOW-ASPECT-RATIO; ELLIPTIC MAGNETIC-SURFACES; GRAD-SHAFRANOV EQUATION; PARALLEL PERMITTIVITY; TOKAMAK EQUILIBRIUM; SPHERICAL TOKAMAK; WAVE DISSIPATION; CURRENT DRIVE; ALFVEN WAVES; CONFIGURATIONS;
D O I：
10.1134/S1063780X13120039
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 contribution of untrapped and two groups of trapped particles to the longitudinal (with respect to the magnetic field) elements of the dielectric susceptibility is determined by solving the drift-kinetic equations for such particles in axisymmetric tokamaks with Solov'ev equilibrium. The obtained dielectric characteristics are applicable for studying linear wave processes in the frequency range of Alfv,n and fast magnetosonic waves in small- and large-aspect-ratio tokamaks with circular, elliptical, and D-shaped cross sections of magnetic surfaces. The high-frequency power absorbed in plasma via electron Landau damping is estimated by summing up terms containing the imaginary parts of both diagonal and non-diagonal elements of the longitudinal susceptibility. The imaginary part of the longitudinal susceptibility is calculated numerically for spherical tokamaks in a wide range of wave frequencies and magnetic surface radii.
引用
收藏
页码：947 / 958
页数：12
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