Limiter biasing experiments on the tokamak ISTTOK

被引：15
|
作者：
Silva, C [1 ]
Nedzelskiy, I
Figueiredo, H
Cabral, JAC
Varandas, CAF
Stöckel, J
机构：
[1] Univ Tecn Lisboa, Ctr Fusao Nucl, EURATOM Assoc, Inst Super Tecn, P-1049001 Lisbon, Portugal
[2] Assoc Euratom IPP CR, Inst Plasma Phys, Prague, Czech Republic
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 2003年 / 53卷 / 10期
关键词：
biasing; edge plasma; particle confinement;
D O I：
10.1023/A:1026300808534
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of the polarization of a localized limiter on the global and edge parameters is described. In particular, the effect of varying the limiter position and the bias voltage is investigated. Improvement in confinement has been obtained for both positive and negative limiter bias as a result of the creation of large radial electric fields in the region just inside the fixed limiter. Furthermore, it has been observed that the modification in the floating potential due to limiter biasing is proportional to the collected current.
引用
收藏
页码：937 / 944
页数：8
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