Vacuum system for HL-2A tokamak

被引：2
|
作者：
Zeng, C [1 ]
Cui, CH [1 ]
Liu, LD [1 ]
Xiao, C [1 ]
Gao, XY [1 ]
机构：
[1] SW Inst Phys, Chengdu 610041, Peoples R China
来源：
PLASMA SCIENCE & TECHNOLOGY | 2005年 / 7卷 / 01期
关键词：
pumping system; pumping divertor; glow discharge cleaning system; leakage & outgassing rate;
D O I：
10.1088/1009-0630/7/1/007
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：
The vacuum system for HL-2A was built in 2003. The test results indicated that this system is feasible. It consists of three main parts: a pumping system, a pumping divertor and a glow discharge cleaning (GDC) system. For the pumping system, there are three main functions: (1) evacuating the vacuum vessel thus to produce an ultra high vacuum, (2) removal of impurities released during baking and (3) pumping during GDC. The pumping divertor controls the particles at the plasma edge and the GDC system provides a clean wall conditioning. During the first campaign of physical trial experiment on HL-2A, the ultimate pressure reached 4.6 x 10(-6) Pa, and the total leakage and outgassing rate in 12 hours was 1.8 X 10(-5) Pa.m(3)/s, which is close to that of ASDEX.
引用
收藏
页码：2632 / 2636
页数：5
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