AN INVESTIGATION OF BEAM DRIVEN ALFVEN INSTABILITIES IN THE DIII-D TOKAMAK

被引：267

作者：

HEIDBRINK, WW ^{[1
]}

STRAIT, EJ ^{[1
]}

DOYLE, E ^{[1
]}

SAGER, G ^{[1
]}

SNIDER, RT ^{[1
]}

机构：

[1] UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717

来源：

NUCLEAR FUSION | 1991年 / 31卷 / 09期

关键词：

D O I：

10.1088/0029-5515/31/9/002

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：

Neutral beams were injected into low field (B = 0.7-1.0 T) deuterium plasmas in an attempt to destabilize toroidicity induced Alfven eigenmodes (TAE modes). When the parallel beam velocity approached the Alfven velocity and the volume averaged beam beta exceeded 2%, localized, propagating modes with n = 2-10 were observed. As much as 45% of the beam power was lost as a result of the modes. The threshold for TAE instability is at least one order of magnitude higher than that predicted by Fu and VanDam (Phys. Fluids B 1 (1989) 1949).

引用

页码：1635 / 1648

页数：14

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