Modification of low-frequency instabilities with high-frequency pump waves

被引：2

作者：

Sharma, PK ^{[1
]}

Bora, D ^{[1
]}

机构：

[1] Inst Plasma Res, Gandhi Sagar 382424, India

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1998年 / 40卷 / 01期

关键词：

D O I：

10.1088/0741-3335/40/1/010

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 influence of a large amplitude electric field oscillating near the upper hybrid frequency two (omega(0) similar to omega(uh)) on low-frequency (LF) electrostatic flute type instabilities, where the pump frequency (omega(0)/2 pi) is 2.45 GHz, is investigated in a pure toroidal plasma. Argon plasma is produced using a hot cathode discharge and microwaves are launched in the ordinary mode. Measurements reveal that the amplitude of the dominant fluctuating component in the cross power spectrum of density and floating potential fluctuations is suppressed for omega(0) < omega(uh), whereas the amplitude of the fluctuations increases in the case omega(0) > omega(uh).

引用

页码：163 / 173

页数：11

共 17 条

[1] RAYLEIGH-TAYLOR INSTABILITY AND LASER-PELLET FUSION [J].