Helical quadrupole field stabilization of field-reversed configuration plasma
Helical quadrupole field stabilization of field-reversed configuration plasma
复制标题
场反转配置等离子体的螺旋四极场稳定
DOI：
10.13182/fst86-a24702
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Y. Nogi
中科院分区：
文献类型：
--
作者：
S. Shimamura;Y. Nogi
由θ箍缩产生的场反转组态等离子体中出现的n = 2模旋转不稳定性，被螺旋四极场稳定化。稳定不稳定性的临界场强作为螺旋线圈的螺距角的函数。阿尔法帽。弧度/米通常，中的血浆..阿尔法帽。= 6绕组磁场稳定约五分之一。阿尔法帽。= 0场强。为了从物理上解释螺旋场的这种良好效果，通过碳V 2270.9-A线的多普勒频移测量等离子体的旋转速度。然而，螺旋效应的明确解释尚未给出。
The n = 2 mode rotational instability, which appears on a field-reversed configuration plasma produced by a theta pinch, is stabilized by a helical quadrupole field. The critical strength of the field to stabilize the instability is obtained as a function of pitch angle of the helical coil ..cap alpha.. rad/m. Typically, the plasma in the ..cap alpha.. = 6 winding field is stabilized by about one-fifth of ..cap alpha.. = 0 field strength. To physically explain such a good effectiveness of the helical field, the rotation speed of the plasma is measured by a Doppler shift of a carbon V 2270.9-A line. However, the clear explanation to the helical effect is not yet given.