ECR离子源六极永磁体的设计研究  

Study on Designing of Hexapole Magnet of ECR Ion Source

作　　者：孙良亭[1] D.Hitz 赵红卫[1] 

机构地区：[1]中国科学院近代物理研究所 [2]CEA/Grenoble,17Rue des Martyrs

出　　处：《高能物理与核物理》2004年第6期644-649,共6页High Energy Physics and Nuclear Physics

基　　金：中国科学院知识创新工程重大项目 ( 9KJCX1 0 9) ;国家杰出青年科学基金 ( 10 2 2 5 5 2 3 )资助~~

摘　　要：分别从材料、结构、尺寸等方面全面地研究了Halbach结构六极永磁铁的设计方法 .针对个别磁块可能存在的退磁问题给出了相应的解决方案 .通过优化结构 ,使六极磁铁在离子源等离子体弧腔内壁产生的磁场达到最大 .用POISSON ,PERMAG ,TOSCA等多个磁场模拟程序计算模拟了六极磁场的大小与分布 。Detailed research has been done on the aspects of the design of a Halbach structure permanent hexapole, such as the permanent material adoption, the structure design, and the dimension selection and etc. A possible method has been proposed to solve the problem of demagnetization in some magnetic blocks. By optimizing the geometry structure, the magnetic field in the working aperture is made to be the maximum for a certain condition. Some useful codes like POISSON, PERMAG, and TOSCA are used to simulate the sextuple magnetic field. Some useful plots are also presented.

关 键 词：ECR离子源 Halbach结构 六极永磁铁 钕铁硼永磁材料 高能核物理 

分 类 号：O441.2[理学—电磁学]