Influence of azimuthal structure of surface waves on efficiency of their excitation by tubular electron beams

被引：4

作者：

Akimov, Yu. A. ^{[1
]}

Olefir, V. P. ^{[1
]}

Azarenkov, N. A. ^{[1
]}

机构：

[1] Kharkov Natl Univ, UA-61108 Kharkov, Ukraine

来源：

CONTRIBUTIONS TO PLASMA PHYSICS | 2006年 / 46卷 / 10期

关键词：

electron beam; plasma surface waves;

D O I：

10.1002/ctpp.200610082

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：

The excitation of eigen surface waves by tubular electron beams in cylindrical discharge devices is studied. The influence of the wave-field azimuthal structure on the excitation efficiency and nonlinear stage of the plasmabeam instability is investigated both numerically and analytically. Analytical expressions for the saturation amplitude and excitation efficiency of the wave under study are derived. They are found to agree well with results obtained by numerical modelling of the plasma-beam interaction presented in this paper.

引用

页码：817 / 825

页数：9

共 12 条

[1] Quadrupole and octopole electromagnetic waves in slightly non-uniform magnetized plasma column [J].