The combined effect of EPMs and TAEs on energetic ion confinement and sawtooth stabilization

被引：27

作者：

Bernabei, S

Budny, RV

Fredrickson, ED

Gorelenkov, NN

Hosea, JC

Phillips, CK

White, RB

Wilson, JR

Petty, CC

Pinsker, RI

Harvey, RW

Smirnov, AP

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[2] Gen Atom Co, San Diego, CA USA

[3] CompX, Del Mar, CA USA

[4] Moscow State Univ, Moscow, Russia

来源：

NUCLEAR FUSION | 2001年 / 41卷 / 05期

关键词：

D O I：

10.1088/0029-5515/41/5/304

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：

It is shown for the first time that the chirping Alfven instabilities observed mostly during ICRF heating hale been positively identified as energetic particle modes (EPMs). This has been possible because of a detailed measurement of the q profile with the MSE diagnostic in DIII-D. The EPMs are shown to be the leading cause of the monster sawtooth crash. It is also shown that toroidal Alfen eigenmodes are excited either directly or indirectly by the EPMs and that they cause fast ion Losses. A scenario for the stabilization and the crash of the monster sawteeth and for the degradation of the ICRF heating efficiency at high power is presented.

引用

页码：513 / 518

页数：6

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