1. University of Chinese Academy of Sciences Beijing 100049 China; 2. Institute of Electrical Engineering, Chinese Academy of Sciences Beijing 100190 China; 3. Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China
Abstract：For high charge state electron cyclotron resonance ion source(ECRIS) magnet, generally, the power density is higher, and it generates a lot of heat. The efficient cooling of magnet coils is one of the key technologies which control the further improvement of high charge state ECRIS, and there are many researches aimed at cooling technology of magnet coils. This paper introduces the development work of high charge state ECRIS-LECR4 based on the evaporative cooling technology, which is the fourth generation ECRIS in institute of modern physics(IMP), Chinese Academy of Sciences. The disc unit structure is used in the magnet coils, and vertical cooling channels are arranged between coil units. The liquid coolant in channels absorbs the heat of coils, and evaporates into steam. This steam coolant automatically flows upward and into condenser, and condenses into liquid. Based on the phase change of coolant, the self-circulating evaporative cooling thermodynamic cycle is built, which realizes the heat transmission of magnet coils. The system tests of LECR4 ion source were completed after the manufacture. The test results show that magnetic coils can ensure secure and stable operation about 60℃under rated load, and the magnetic field parameters have reached the design requirements.
熊斌, 阮琳, 顾国彪, 卢旺, 张雪珍. 蒸发冷却技术在高电荷态ECR离子源磁体上的应用——LECR4[J]. 电工技术学报, 2015, 30(10): 219-225.
Xiong Bin, Ruan Lin, Gu Guobiao, Lu Wang, Zhang Xuezhen. Application of Evaporative Cooling Technology in Magnet of High Charge State ECR Ion Source-LECR4. Transactions of China Electrotechnical Society, 2015, 30(10): 219-225.
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2015, Vol. 30 
