Wall conditioning for Wendelstein 7-X by glow discharge

被引：15
作者：
Spring, A [1 ]
Brakel, R [1 ]
Niedermeyer, H [1 ]
机构：
[1] EURATOM, Max Planck Inst Plasmaphys, D-17491 Greifswald, Germany
来源：
FUSION ENGINEERING AND DESIGN | 2003年 / 66-68卷
关键词：
Wendelstein; 7-X; glow discharge cleaning; wall conditioning;
D O I：
10.1016/S0920-3796(03)00245-X
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The basic design of a reliable and robust glow discharge cleaning (GDC) system for Wendelstein 7-X is presented. Preliminary experiments at the DEMO cryostat, a full size prototype sector of W7-X, result in conclusions about the operating range, power consumption and discharge stability of a GDC in W7-X dimensions. Ten electrodes are planned to be integrated into the first wall of W7-X, thus avoiding complex manipulators. A spherical calotte anode made of graphite mounted in a shielding trough was found as the optimum electrode design assuring stable discharge operation without active cooling, even when exposed to steady state stellarator discharges. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：371 / 375
页数：5
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