MHD instabilities in heliotron/torsatron
MHD instabilities in heliotron/torsatron
复制标题
日射管/托萨管中的 MHD 不稳定性
DOI：
10.1016/0920-3796(92)90024-x
复制
发表时间：
1991
影响因子：
1.7
通讯作者：
K. Ichiguchi
中科院分区：
文献类型：
--
作者：
M. Wakatani;Y. Nakamura;K. Ichiguchi
回顾了 Heliotron/Torsatron 中 MHD 不稳定性的最新理论结果。通过将结果与Heliotron E、Heliotron DR和ATF的实验数据进行比较，指出电阻交换模式是最关键的不稳定性，因为磁山占据了等离子体柱的相当大的区域。三维MHD平衡码的开发取得了重大进展。通过使用DI（理想MHD模式）和DR（电阻MHD模式）所示的局部稳定性准则对于BETA和VMEC等三维代码给出的平衡，估计低n理想模式或低n电阻模式的稳定性阈值，其中n是环形模式数。
Recent theoretical results of MHD instabilities in Heliotron/Torsatron are reviewed. By comparing the results with experimental data in Heliotron E, Heliotron DR and ATF, it is pointed out that resistive interchange modes are the most crucial instabilities, since the magnetic hill occupies a substantial region of plasma column.Development of three-dimensional MHD equilibrium codes has made a significant progress. By using the local stability criterions shown byDI(ideal MHD mode) andDR(resistive MHD mode) for the equilibria given by the three-dimensional codes such as BETA and VMEC, stability thresholds for the low n ideal modes or the low n resistive modes are estimated, where n is a toroidal mode number.