Vertical Stability in a Current-carrying Stellarator
Vertical Stability in a Current-carrying Stellarator
复制标题
载流仿星器的垂直稳定性
DOI：
10.2172/14334
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
G. Fu
中科院分区：
文献类型：
--
作者：
G. Fu
本文导出了大展弦比仿星器垂直模的解析稳定性判据。螺旋线圈产生的真空磁场的效果被证明是稳定的，由于增强的磁力线弯曲能量。对于离等离子体无限远的壁面，稳定化所需的外极向通量为f = [k（下标2）-K]/[K（下标2）+ 1]，其中k为轴对称伸长，f为真空转动变换与总变换的比值。
An analytic stability criterion is derived for the vertical mode in a large aspect ratio stellarator. The effects of vacuum magnetic field generated by helical coils are shown to be stabilizing due to enhancement of field line bending energy. For wall at infinite distance from the plasma, the amount of external poloidal flux needed for stabilization is given by f = [k(subscript 2)-K]/[K(subscript 2) + 1] where k is the axisymmetric elongation and f is the ratio of vacuum rotational transform to the total transform.