J-PARC离子源多峰离子源三维数值模拟  

3D simulation J-PARC multi-cusp ion source

作　　者：杨超[1] 刘成安[1] 

机构地区：[1]西南科技大学国防科技学院,绵阳621010

出　　处：《核聚变与等离子体物理》2014年第1期22-26,共5页Nuclear Fusion and Plasma Physics

基　　金：国家自然科学基金资助(11176032;CAEPTHZ201209);四川省教育厅科研项目(12ZA183);西南科技大学博士基金项目(13zx7106)

摘　　要：研究了矩形永磁体的理论计算方法,深入剖析了PIC-MCC处理算法,在粒子模拟软件平台下研制了全三维PIC-MCC模拟算法,并采用该算法数值研究了J-PARC多峰离子源放电特性,分析了J-PARC离子源电子能量沉积过程和体积产生机制,讨论了该离子源在光学特性和设计思路上的优势。结果显示:该离子源能产生空间均匀的负氢离子离子束,且体积负氢离子产生效率较高。The theory calculation of the rectangle permanent magnet was studied. The PIC-MCC simulation algorithm was analyzed in-depth. A 3D PIC-MCC simulation algorithm was developed using the PIC software. Based on this algorithm, the discharge characteristics of multi-cusp ion source, J-PARC, were simulated and the electron energy deposition process and the generation mechanism of volume in multi-cusp ion source were analyzed. Also, the advantages of the ion source in optical characteristics and design ideas were discussed. The results showed that the ion source can produce space uniformly negative hydrogen ion beam, and the volume negative hydrogen ions were produced high efficiently.

关 键 词：J-PARC多峰离子源 体积产生 空间均匀性 

分 类 号：O539[理学—等离子体物理]