SCRAPE-OFF LAYER CURRENT IN DIVERTED TOKAMAKS

被引：3

作者：

KESNER, J

RAMOS, JJ

LUCKHARDT, SC

机构：

[1] Plasma Fusion Center, MIT, Cambridge, MA

来源：

NUCLEAR FUSION | 1994年 / 34卷 / 06期

关键词：

D O I：

10.1088/0029-5515/34/6/I03

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：

A negative current in the scrape-off region beyond the separatrix of a diverted tokamak can improve its MHD stability. By utilizing a strong thermionic emitter a current of up to 25 % of the plasma current can be driven in the scrape-off region. If the thermionic current is emitted at only one end of the open field lines, a current will flow in the absence of a potential bias. The heat to maintain the electron emission that drives the scrape-off current would be supplied by the plasma outflow and no additional power is needed.

引用

页码：795 / 801

页数：7

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