Formation of convective cells during scrape-off layer biasing in the CASTOR tokamak

被引:28
作者
Stockel, J [1 ]
Devynck, P
Gunn, J
Martines, E
Bonhomme, G
Voitsekhovitch, I
Van Oost, G
Hron, M
Duran, I
Stejskal, P
Adamek, J
Weinzettl, V
Zacek, F
机构
[1] Acad Sci Czech Republ, Inst Plasma Phys, EURATOM Assoc, IPP,CR, Prague, Czech Republic
[2] EURATOM, CEA Fus Controlee, St Paul Les Durance, France
[3] ENEA Fus, EURATOM Assoc, Consorzio RFX, Padua, Italy
[4] Univ Henri Poincare, CNRS, UMR 7040, LPMI, Vandoeuvre Les Nancy, France
[5] Univ Aix Marseille 1, Equipe Turbulence Plasma, LPIIM, Marseille, France
[6] Univ Ghent, Dept Appl Phys, B-9000 Ghent, Belgium
关键词
D O I
10.1088/0741-3335/47/4/004
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
We describe experiments with a biased electrode inserted into the scrape-off layer (SOL) of the CASTOR tokamak. The resulting radial and poloidal electric field and plasma density modification are measured by means of Langmuir probe arrays with high temporal and spatial resolutions. Poloidally and radially localized stationary structures of the electric field (convective cells) are identified and a related significant modification of the particle transport in the SOL is observed.
引用
收藏
页码:635 / 643
页数:9
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