潘宁负离子源中子管中离子和电子分离的仿真研究  

Simulation research on the separation of ions and electrons in the neutron tube of Pen Ning negative ion source

作　　者：姜瀚 乔双[1] JIANG Han;QIAO Shuang(School of Physics,Northeast Normal University,Changchun 130024,China)

机构地区：[1]东北师范大学物理学院,吉林长春130024

出　　处：《东北师大学报（自然科学版）》2020年第3期111-115,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11275046,11505026);国家重大科学仪器设备专项基金资助项目(2013YQ040861).

摘　　要：建立了潘宁负离子源中子管的引出束流及加速系统模型,理论上研究了引出电极和加速电极的几何参数及电磁参数对引出束流中离子和电子的聚焦点与偏转轨迹的影响.通过粒子工作室CST软件,得到离子和电子偏转的大量仿真数据.结果表明:离子源罩和引出电极之间距离、偏转磁场能够影响束流中的离子和电子的运动轨迹;引出电极的电势大小对于离子束流运动轨迹几乎无影响.The beam extraction and acceleration system model of Penning negative ion source neutron tube is established,the effects of geometrical and electromagnetic parameters of the extraction electrode and acceleration electrode on the focus and deflection trajectory of ions and electrons in the extraction beam are studied theoretically.Through particle studio CST software,get a lot of simulation on the state of the ion and electron deflection data.Based on the analysis of these data,the effects of deflection magnetic field,potential and distance of lead-out electrode on the separation of ions and electrons are summarized.

关 键 词：中子管 离子聚焦 电子偏转 软件仿真 

分 类 号：TN702[电子电信—电路与系统]