A Permanent Magnet Ion Source with Adjustable Magnetic Field  

磁场可调永磁离子源

作　　者：崔保群[1] 唐兵[1] 马鹰俊[1] 马瑞刚[1] 姜冲[1] 陈立华[1] 蒋渭生[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《Chinese Physics C》2008年第z1期280-282,共3页中国物理C（英文版）

摘　　要：A permanent magnet microwave ion source with adjustable magnetic field is developed at China Institute of Atomic Energy.The magnetic field in the region of ionization chamber is generated by permanent magnets.Outside the magnet,an iron yoke is installed to adjust the magnetic field,and the yoke can be adjusted easily by hands.With adjustable magnetic field,the ion source can be tuned into the optimized operational condition.From an aperture of 3mm in diameter,17mA hydrogen beam has been extracted.研制了一台磁场可调微波离子源,在离子源放电室处需要的磁场由一组永久磁铁产生,永久磁铁外部安装了铁磁回路,铁磁回路的结构可以很容易的手动调整,通过调整铁磁回路的结构,可以在放电室产生要求的磁场.在调试过程中,也可以调整铁磁回路以改变离子源内部磁场结构,有利于获得最佳放电条件.该源在测试中,从3mm直径的引出孔引出了17mA的离子束.

关 键 词：permanent magnet ion source adjustable magnetic field 

分 类 号：TL503.3[核科学技术—核技术及应用]