The possibility of anomalous gyrotron frequency sub-harmonics emission in the ECRH experiments at toroidal devices

被引：24

作者：

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

Popov, A. Yu ^{[1
]}

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

机构：

[1] Ioffe Inst, St Petersburg, Russia

来源：

NUCLEAR FUSION | 2019年 / 59卷 / 10期

关键词：

electon cyclotron resonance heating; extraordinary wave; two-pasmon decay; anomalous emission; gyrotron frequency sub-harmonics emission; DECAY INSTABILITY; PARAMETRIC DECAY;

D O I：

10.1088/1741-4326/ab3a70

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 possibility of the anomalous electromagnetic emission in the ECRH experiments at both half the gyrotron frequency and the 3/2 harmonic of it associated with excitation of low-threshold two-upper hybrid-plasmon parametric decay instability is predicted. The experimental conditions when this emission can be detected are analyzed. A measurable level of the corresponding radiance temperature is demonstrated. The general consideration is accompanied by the numerical analysis performed under the experimental conditions typical of the off-axis X2-mode ECRH experiments.

引用

页数：8

共 34 条

[11] On a new scenario for the saturation of the low-threshold two-plasmon parametric decay instability of an extraordinary wave in the inhomogeneous plasma of magnetic traps [J].