CIAE强流ECR离子源研制

摘要

本文介绍了研制的一台强流ECR微波离子源,其能从7 mm直径的圆孔引出大于150 mA的氢离子束(75 keV),质子比达90％.该离子源采用独特的结构提高了离子源寿命.离子源在75 keV、110 mA束流条件下连续工作超过220 h,束流中断2次,不间断工作时间超过150 h.%A high current ECR ion source was introduced. The total hydrogen beam more than 150 mA at 75 keV can be routinely extracted from a single 7 mm diameter aperture with the proton fraction up to 90%. A unique structure to improve the reliability was adopted. The ion source was operated continuously for more than 220 h at 75 keV and 110 mA extracted hydrogen current, while two beam trips were recorded in the period, and uninterrupted operation time was about 150 h.