Experimental observation of Marfes in the W7-AS stellarator

被引:22
|
作者
Wenzel, U [1 ]
McCormick, K
Hildebrandt, D
Klose, S
Naujoks, D
Thomsen, H
机构
[1] Max Planck Inst Plasma Phys, EURATOM, IPP Assoc, D-10117 Berlin, Germany
[2] Max Planck Inst Plasma Phys, EURATOM, IPP Assoc, D-85748 Garching, Germany
关键词
D O I
10.1088/0741-3335/44/10/103
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
In the new high-density H-mode of the W7-AS stellarator with island divertor several thermal instabilities were found. Marfes (multifaceted asymmetric radiation from the edge) were observed inboard crossing midplane. This phenomenon has much in common with the Marfe of a divertor tokamak. For some edge configurations of W7-AS, the Marfe is unstable. Simultaneously the plasma is poloidal symmetrically detached. Such a stationary poloidal symmetric detachment is already known from limiter tokamaks while the coexistent Marfe fluctuations are observed for the first time.
引用
收藏
页码:L57 / L62
页数:6
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