Induced backscattering in an inhomogeneous plasma at the upper hybrid resonance

被引：43

作者：

Gusakov, E. Z. ^{[1
]}

Surkov, A. V. ^{[1
]}

机构：

[1] Ioffe Inst, St Petersburg 194021, Russia

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2007年 / 49卷 / 05期

关键词：

D O I：

10.1088/0741-3335/49/5/005

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：

A theoretical study of the parametric decay instability as occurring in electron Bernstein wave heating experiments and leading to anomalous reflection is performed. The threshold power is calculated for the fundamental instability mode which is proven to have a lower value. It is demonstrated that for the MAST experimental conditions the backscattering parametric decay instability can arise only if the pump power exceeds 80kW in any microwave beam. It results that the threshold power is roughly inversely proportional to the square of the pump wave frequency. Hence, to increase the instability threshold lowering the pump frequency is suggested.

引用

页码：631 / 639

页数：9

共 14 条

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[3]

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