New mechanisms of minority ion cyclotron current drive

被引：36

作者：

Carlsson, J ^{[1
]}

Hellsten, T ^{[1
]}

Hedin, J ^{[1
]}

机构：

[1] Royal Inst Technol, Alfven Lab, S-10044 Stockholm, Sweden

来源：

PHYSICS OF PLASMAS | 1998年 / 5卷 / 08期

关键词：

D O I：

10.1063/1.873010

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：

Minority ion cyclotron current drive is studied by solving the Fokker-Planck equation in toroidal geometry keeping the partial derivative/partial derivative upsilon(parallel to)-term in the quasilinear operator, hereby including the important effects of the finite orbit widths of the tail ions and the wave-induced spatial drift and diffusion. It has previously been found that the trapped ion current and the current carried by passing ions detrapped by wave-induced upsilon(perpendicular to)-diffusion are the two dominating contributions for high levels of coupled power. In this study yet another current-drive mechanism is presented, asymmetric detrapping by inward wave-induced radial drift, which occurs for negative k(parallel to) and is strongest for on-axis resonance where it is the totally dominating effect for high powers. (C) 1998 American Institute of Physics.

引用

页码：2885 / 2892

页数：8

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