NONLINEAR EFFECTS IN ELECTRON-CYCLOTRON PLASMA-HEATING

被引：25

作者：

KOTELNIKOV, IA ^{[1
]}

STUPAKOV, GV ^{[1
]}

机构：

[1] INT CTR THEORET PHYS,I-34100 TRIESTE,ITALY

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1990年 / 2卷 / 05期

关键词：

D O I：

10.1063/1.859287

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Nonlinear absorption of an ordinary wave propagating through a plasma perpendicular to a unidirectional magnetic field with a frequency close to the electron gyrofrequency is studied. Electron motion is described using a Hamiltonian averaged over rapid gyromotion. The wave evolution in space and time is governed by two equations for the wave amplitude and phase averaged over the wavelength. A case of strong nonlinearity is considered in which the energy absorbed by an electron from the wave is greater than its thermal energy. For this case, the amount of absorbed power is computed analytically assuming it to be small compared with the power of the microwave beam. An effect of nonlinear refraction of the wave is discussed. © 1990 American Institute of Physics.

引用

页码：881 / 888

页数：8