摘要
介绍了HL 2A装置真空系统研制。它由真空主抽气系统、抽气偏滤器、直流辉光放电清洗系统组成。主抽气系统提供了装置真空室从大气到高真空、烘烤除气、直流辉光放电清洗所需要的抽气能力。抽气偏滤器初步实现了托卡马克放电过程中边缘粒子的抽运与控制;直流辉光放电清洗系统保证了装置良好的真空器壁条件。介绍了这些系统的初步运行情况,并给出了其测试结果。HL 2A装置首轮物理实验运行时真空室极限真空度达到4.6×10-6Pa,12h总漏放气率为1.8×10-5Pa·m3·s-1。
The basic design of a reliable vacuum system for the HL-2A tokamak is presented. It consists of the main pumping system, pumping divertor and glow discharge cleaning (GDC) system. The main pumping system provides the pumping capability for the high vacuum of chamber, outgassing by baking and GDC. The pumping divertor initially realizes the pumping and control of edge particles in tokamak discharge. The GDC system ensures the good wall condition of the device. The preliminary operation and the data obtained with these systems are also presented. The base pressure is 4.6 × 10-6 Pa, in the preliminary physical experiment operation of the HL-2A tokamak, and the total leak and outgassing rates of vacuum chamber is below 1.8 × 10-5 Pa·m3·s-1 in 12 hours.
出处
《核聚变与等离子体物理》
EI
CAS
CSCD
北大核心
2005年第1期59-64,共6页
Nuclear Fusion and Plasma Physics
