THE CHANGE IN THE SAFETY FACTOR PROFILE AT A SAWTOOTH COLLAPSE

被引：49

作者：

OROURKE, J

机构：

[1] JET Joint Undertaking, Abingdon

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1991年 / 33卷 / 04期

关键词：

D O I：

10.1088/0741-3335/33/4/002

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：

Perturbations of the electron density and the poloidal magnetic field induced by sawtooth instabilities are studied using interferometric and polarimetric data. The change in the safety factor profile at a sawtooth collapse is deduced. It is found that sawteeth do not lead to complete reconnection of the poloidal flux sinxe (DELTA-q0)collapse < 1 - q0. A comparison of the rate of change of q0 between sawteeth with field diffusion calculations assuming neo-classical resistivity also suggests that complete reconnection does not take place.

引用

页码：289 / 296

页数：8