Experimental studies of cusp stabilization in Keda Mirror with AXisymmetricity (KMAX)
Experimental studies of cusp stabilization in Keda Mirror with AXisymmetricity (KMAX)
复制标题
轴对称科达镜（KMAX）尖点稳定性实验研究
DOI：
10.1088/2058-6272/ac8e45
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发表时间：
2022
影响因子：
1.7
通讯作者：
Xuan Sun
中科院分区：
文献类型：
--
作者：
Qing Li;G. Zhu;Baoming Ren;Jia Ying;Zhida Yang;Xuan Sun
轴对称磁镜的稳定性依赖于压力加权磁场曲率。我们报告了一项新实验，通过配置磁尖点结构来稳定 KMAX 串联镜中的 m = 1 交换模式。尖点配置是通过两侧电池线圈中的反向电流形成的，一旦尖点零点距离装置轴小于 35-40 厘米，更强的尖点可以产生更稳定的等离子体。四个轴向 Langmuir 探头测量的密度波动减轻了 70%–80%。稳定效果与理论计算的预测一致。
Stabilization of the axisymmetric magnetic mirror relies on the pressure-weighted magnetic field curvature. We report a new experiment by configuring a magnetic cusp structure to stabilize m = 1 interchange mode in KMAX tandem mirror. The cusp configuration is formed by reversing currents in the two side cell coils, and a stronger cusp can lead to a more stable plasma once the null point of cusp is less than 35–40 cm away from the device axis. The density fluctuations measured by four axial Langmuir probes are mitigated by 70%–80%. The stabilization effect is consistent with the prediction of a theoretical calculation.