On a Strong Effect of Nonresonant Three-Wave Interactions on the Saturation of Low-Threshold Parametric Decay Instability

被引：1

作者：

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

Popov, A. Yu ^{[1
]}

机构：

[1] Ioffe Inst, St Petersburg 194021, Russia

来源：

JETP LETTERS | 2022年 / 116卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

D O I：

10.1134/S0021364022600938

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It has been shown that the nonresonant three-wave interaction between daughter waves trapped in the plasma, which excites strongly damped induced oscillations, strongly affects the nonlinear evolution of the low-threshold parametric decay instability, leading to its saturation through a cascade of successive low-threshold decays. As a result, the anomalous absorption of a microwave pump wave in the electron cyclotron heating of the plasma in toroidal magnetic confinement devices can be significantly reduced.

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页码：36 / 40

页数：5

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