Stabilization effect of magnetic shear on the diocotron instability
Stabilization effect of magnetic shear on the diocotron instability
复制标题
磁剪切对双波管不稳定性的稳定作用
DOI：
10.1063/1.1371521
复制
发表时间：
2001
影响因子：
2.2
通讯作者：
Z. Yoshida
中科院分区：
文献类型：
--
作者：
S. Kondoh;T. Tatsuno;Z. Yoshida
磁化非中性等离子体中的双电子不稳定性是开尔文-亥姆霍兹不稳定性的近亲。剪切磁场导致双共振模和沿磁场传播的朗缪尔波之间的耦合。电子平行于磁场的运动抵消了二极管加速器模产生的电荷，导致了二极管加速器不稳定性的稳定。
The diocotron instability in a magnetized non-neutral plasma is a close cousin of the Kelvin–Helmholtz instability. A sheared magnetic field brings about coupling between the diocotron modes and the Langmuir waves that propagate along the magnetic field. The motion of electrons parallel to the magnetic field cancels the electric charge produced by the diocotron modes, resulting in stabilization of the diocotron instability.