On the applicability of local asymptotic stability criteria to stellarator stability
On the applicability of local asymptotic stability criteria to stellarator stability
复制标题
局部渐近稳定判据对仿星器稳定性的适用性
DOI：
10.1063/1.1349877
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发表时间：
2001
影响因子：
2.2
通讯作者：
T. Tatsuno
中科院分区：
文献类型：
--
作者：
B. Carreras;V. Lynch;K. Ichiguchi;M. Wakatani;T. Tatsuno
仿星器平衡的三维性质的内在结果可能是在谐振表面处存在压力分布的局部平坦化。压力分布的局部平坦化显着改变了稳定性能。局部交换模式稳定，并且一个新的不稳定分支控制临界 beta。这种不稳定性通过高极向模数下的剪切而得到强烈稳定。因此，等离子体稳定性特性发生变化，并且在仿星器设计中常用的渐近推导的局部稳定性准则不再适用。
An intrinsic consequence of the three-dimensional nature of the stellarator equilibrium may be the existence of local flattening of the pressure profile at the resonant surfaces. This local flattening of the pressure profile significantly changes the stability properties. The localized interchange modes are stabilized, and a new instability branch controls the critical beta. This instability is strongly stabilized by shear at high poloidal mode numbers. As a consequence, the plasma stability properties change, and the asymptotically derived local stability criteria often used in stellarator design are no longer applicable.
紧凑螺旋系统中的等离子体约束物理研究
DOI：
--
发表时间：
2006
期刊：
Journal of the Korean Physical Society 49
影响因子：
--
作者：
S.Okamura;et. al.
通讯作者：
et. al.