Stabilization of ballooning modes by nonparaxial cells

被引:14
作者
Arsenin, VV [1 ]
Zvonkov, AV [1 ]
Skovoroda, AA [1 ]
机构
[1] Russian Res Ctr, Kurchatov Inst, Inst Nucl Fus, Moscow 123182, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/1.1856704
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
An analysis is made of the effect of high-curvature stabilizing nonparaxial elements (cells) on the MHD plasma stability in open confinement systems and in confinement systems with closed magnetic field lines. It is shown that the population of particles trapped in such cells has a stabilizing effect not only on convective (flute) modes but also on ballooning modes, which govern the maximum possible beta value. In the kinetic approach, which distinguishes between the effects of trapped and passing particles, the maximum possible beta values consistent with stability can be much higher than those predicted by the MHD model. (C) 2005 Pleiades Publishing, Inc.
引用
收藏
页码:3 / 13
页数:11
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