Abstract

With allowance for the centrifugal and gradient drifts of ions, a new approximate dispersion equation is obtained for the ion Bernstein (IB) wave propagating strictly transverse to the external inhomogeneous magnetic field. Using this equation, it is shown that if, in the high-temperature plasma, the drift of ions is taken into account, the resonance frequency ranges in the vicinities of the ion cyclotron frequency harmonics can strongly overlap. In this case, the ion Bernstein waves turn out to be strongly damped, despite the absence of the longitudinal component of the wave vector.

中文翻译：

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关于非均匀磁场中横向离子伯恩斯坦波的阻尼问题

摘要

考虑到离子的离心漂移和梯度漂移，对于严格横向于外部非均匀磁场传播的离子伯恩斯坦（IB）波，获得了一个新的近似色散方程。使用该方程式表明，如果在高温等离子体中考虑到离子漂移，则离子回旋加速器频率谐波附近的谐振频率范围会强烈重叠。在这种情况下，尽管不存在波矢的纵向分量，但离子伯恩斯坦波却被强烈阻尼。