Vertical stability in a current-carrying stellarator

被引：10

作者：

Fu, GY ^{[1
]}

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PHYSICS OF PLASMAS | 2000年 / 7卷 / 04期

关键词：

D O I：

10.1063/1.873916

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 analytic stability criterion is derived for the vertical mode in a large aspect ratio stellarator with uniform current density profile. The effects of vacuum magnetic field generated by helical coils are shown to be stabilizing due to enhancement of field line bending energy. For a wall at infinite distance from the plasma, the amount of external poloidal flux needed for stabilization is given by f = (kappa(2) - kappa)/(kappa(2) + 1), where kappa is the axisymmetric elongation and f is the ratio of vacuum rotational transform to the total transform. (C) 2000 American Institute of Physics. [S1070-664X(00)02504-0].

引用

页码：1079 / 1080

页数：2

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