EFFECT OF QUADRUPOLE FIELDS ON LOCAL 3-DIMENSIONAL (3-D) IDEAL MAGNETOHYDRODYNAMIC (MHD) STABILITY IN TORSATRONS

被引：6
作者：
MOECKLI, R
COOPER, WA
机构：
[1] Centre de Recherches en Physique des Plasmas, Association Euratom-Confédération Suisse, Ecole Polytechnique Fédérale de Lausanne, Lausanne
来源：
PHYSICS OF PLASMAS | 1994年 / 1卷 / 03期
关键词：
D O I：
10.1063/1.870773
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 local three-dimensional (3-D) ideal magnetohydrodynamic (MHD) stability properties of a 12-field period torsatron device of moderate aspect ratio are investigated as a function of an externally applied quadrupole magnetic field. It is demonstrated that with a parabolic pressure profile the volume-averaged beta limit due to the ballooning instabilities decreases from beta congruent-to 2% to beta congruent-to 1.5% as the current I(mid) in the quadrupole field coils normalized to that in the main helical coils increases from 0 to 0.19.
引用
收藏
页码：793 / 795
页数：3
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