A STABILITY-CRITERION FOR ENERGETIC PARTICLE-ALFVEN MODES

被引：11

作者：

BETTI, R

FREIDBERG, JP

机构：

[1] Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1991年 / 3卷 / 03期

关键词：

D O I：

10.1063/1.859904

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：

A stability criterion is derived for energetic particle-Alfven modes. The criterion is valid for arbitrary aspect ratio, arbitrary beta, noncircular, axisymmetric tori. The plasma is modeled by a magnetohydrodynamic (MHD) core plus a fully kinetic Vlasov species of hot particles. Electron kinetic effects are neglected. In spite of the complexity associated with the analysis of the Vlasov species, a simple but exact stability boundary is derived. The criterion is very fluidlike in nature, suggesting that accurate evaluation in realistic geometries can be accomplished with perhaps only minor modifications to any one of the existing ideal MHD stability codes.

引用

页码：538 / 544

页数：7

共 23 条

[1] EXCITATION OF GLOBAL EIGENMODES OF THE ALFVEN-WAVE IN TOKAMAKS [J].