Stabilization of ion temperature gradient driven modes by lower hybrid wave in a tokamak

被引：10

作者：

Kuley, Animesh ^{[1
]}

Tripathi, V. K. ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India

来源：

PHYSICS OF PLASMAS | 2009年 / 16卷 / 03期

关键词：

plasma drift waves; plasma hybrid waves; plasma instability; plasma kinetic theory; plasma nonlinear processes; plasma temperature; plasma toroidal confinement; plasma transport processes; Tokamak devices; TRANSPORT; TURBULENCE; MICROSTABILITY; CONFINEMENT; SIMULATIONS; INSTABILITY; PHYSICS;

D O I：

10.1063/1.3080744

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 gyrokinetic formalism has been developed to study lower hybrid wave stabilization of ion temperature gradient driven modes, responsible for anomalous ion transport in the inner region of tokamak. The parametric coupling between lower hybrid and drift waves produce lower hybrid sideband waves. The pump and the sidebands exert a ponderomotive force on electrons, modifying the eigenfrequency of the drift wave and influencing the growth rate. The longer wavelength drift waves are destabilized by the lower hybrid wave while the shorter wavelengths are suppressed. The requiste lower hybrid power is in the range of similar to 900 kW at 4.6 GHz.

引用

页数：6

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