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.

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页数：8

相关论文

共 34 条

[1]

Akhiezer A.I., 1975, PLASMA ELECTRODYNAMI, DOI [10.1016/C2013-0-02586-8, DOI 10.1016/C2013-0-02586-8]

[2] Experimental study of density pump-out effect with on-axis electron cyclotron resonance heating at the T-10 tokamak [J].

Andreev, V. F. ;

Borschegovskij, A. A. ;

Chistyakov, V. V. ;

Dnestrovskij, Yu N. ;

Gorbunov, E. P. ;

Kasyanova, N. V. ;

Lysenko, S. E. ;

Melnikov, A. V. ;

Myalton, T. B. ;

Roy, I. N. ;

Sergeev, D. S. ;

Zenin, V. N. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2016, 58 (05)

[3] Evidence for high-m secondary islands induced by large low-m islands in a tokamak plasma -: art. no. 085001 [J].

Donné, AJH ;

van Gorkom, JC ;

Udintsev, VS ;

Domier, CW ;

Krämer-Flecken, A ;

Luhmann, NC ;

Schüller, FC .

PHYSICAL REVIEW LETTERS, 2005, 94 (08)

[4] HOT-ELECTRON GENERATION BY THE 2-PLASMON DECAY INSTABILITY IN THE LASER-PLASMA INTERACTION AT 10.6 MU-M [J].

EBRAHIM, NA ;

BALDIS, HA ;

JOSHI, C ;

BENESCH, R .

PHYSICAL REVIEW LETTERS, 1980, 45 (14) :1179-1182

[5] Parametric Mechanism of Anomalous Microwave Power Absorption in Experiments on Electron Cyclotron Heating in Toroidal Magnetic Traps [J].

Gusakov, E. Z. ;

Popov, A. Yu. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2018, 127 (01) :155-166

[6] A possibility of the strong anomalous absorption of the pump power in the X2-mode ECRH experiments [J].

Gusakov, E. Z. ;

Popov, A. Yu. .

NUCLEAR FUSION, 2018, 58 (09)

[7] Saturation of low-threshold two-plasmon parametric decay leading to excitation of one localized upper hybrid wave [J].

Gusakov, E. Z. ;

Popov, A. Yu. ;

Saveliev, A. N. .

PHYSICS OF PLASMAS, 2018, 25 (06)

[8] Influence of the pump depletion on the anomalous absorption of the extraordinary wave in the second harmonic ECRH experiments [J].

Gusakov, E. Z. ;

Popov, A. Yu .

PLASMA PHYSICS AND CONTROLLED FUSION, 2018, 60 (02)

[9] Saturation of the two-plasmon parametric decay instability in experiments on the electron cyclotron plasma heating due to the extraordinary pump wave depletion [J].

Gusakov, E. Z. ;

Popov, A. Yu. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2017, 125 (04) :702-708

[10] On a saturation mechanism of two-upper-hybrid-plasmon parametric decay instability in the second harmonic ECRH experiment [J].

Gusakov, E. Z. ;

Popov, A. Yu .

PLASMA PHYSICS AND CONTROLLED FUSION, 2017, 59 (02)

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