CHANGE OF CONFINEMENT PROPERTIES AND TRANSITION FROM ABSOLUTE TO NONNORMAL MODE MICROINSTABILITIES

被引：8

作者：

BASU, B ^{[1
]}

COPPI, B ^{[1
]}

机构：

[1] MIT,CAMBRIDGE,MA 02139

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1992年 / 4卷 / 09期

关键词：

D O I：

10.1063/1.860155

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 change in confinement properties that can be induced in experiments, where the plasma is heated by an external injection system, is considered to be related to the transition from a regime where "absolute" microinstabilities are excited at the edge of the plasma column to a regime where these microinstabilities can exist only as non-normal modes because of the effects of the local gradient of the EXB rotation frequency that is induced. Ion-temperature-gradient-driven modes are analyzed as an important example and the threshold conditions for their disappearances as normal modes are evaluated.

引用

页码：2817 / 2822

页数：6

共 10 条

[1] PLASMA COLLECTIVE MODES DRIVEN BY VELOCITY-GRADIENTS [J].