SAWTOOTH OSCILLATIONS IN A SMALL TOKAMAK

被引：40

作者：

MCGUIRE, K ^{[1
]}

ROBINSON, DC ^{[1
]}

机构：

[1] UKAEA,FUS ASSOC,EURATOM,CULHAM LAB,ABINGDON OX14 3DB,OXFORDSHIRE,ENGLAND

来源：

NUCLEAR FUSION | 1979年 / 19卷 / 04期

关键词：

D O I：

10.1088/0029-5515/19/4/009

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：

Sawtooth oscillations are observed in the small tokamak TOSCA with a period of 100-200 μs. The q = 1 singular surface occurs at a radius of 1-1.5 cm. The sawtooth oscillations are not suppressed by shaping the plasma into a triangle. By comparing the results with those of larger tokamaks an empirical scaling law for the repetition time is obtained. It is demonstrated that this scaling law is compatible with Ohmic heating and a resistive instability whose growth rate is dependent upon the decrease in q below unity. © 1979 IOP Publishing Ltd.

引用

页码：505 / 507

页数：3

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