Effects of net toroidal current on the Mercier criterion in the Large Helical Device
Effects of net toroidal current on the Mercier criterion in the Large Helical Device
复制标题
大型螺旋装置中净环形电流对 Mercier 准则的影响
DOI：
10.1088/0029-5515/33/3/i10
复制
发表时间：
1992
期刊：
影响因子：
3.3
通讯作者：
M. Wakatani
中科院分区：
文献类型：
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作者：
K. Ichiguchi;N. Nakajima;M. Okamoto;Y. Nakamura;M. Wakatani
以大螺旋装置为例，研究了净环向电流对等离子体在heliotron/torsatron组态下局部理想MHD稳定性或Mercier判据的影响。利用三维平衡程序VMEC研究了给定净环面电流时平衡态的局部稳定性。研究发现，减小旋转变换的减电流提高了稳定性，而增大旋转变换的加电流则降低了稳定性。净环向电流引起磁轴处旋转变换的变化是稳定性变化的重要机理。给出了等离子体位置向内或向外移动的大螺旋装置结构的Mercier稳定性图
The effects of the net toroidal current on the local ideal MHD stability or the Mercier criterion are investigated for a plasma in the heliotron/torsatron configuration by taking the Large Helical Device as an example. The three dimensional equilibrium code VMEC is used to study the local stability of equilibria with given net toroidal currents. It is found that a subtractive current that decreases the rotational transform improves the stability, while an additive current that increases the rotational transform reduces the stability. The change of the rotational transform at the magnetic axis due to the net toroidal current is the essential mechanism for the change of stability. Mercier stability diagrams are given for the configurations of the Large Helical Device in which the plasma position is shifted inward or outward
影响因子：
3.3
作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox
通讯作者：
A. Gibson;T. Sekiguchi;K. Lackner;S. Bodner;R. Hancox
N.Nakajima：“快离子和外部感应电场对一般环形系统中新古典平行流、电流和旋转的影响”*****。
DOI：
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