磁电双聚焦质量分析系统的研制  

Development of Magnetic-Electric Double Focusing Mass Analyzer

作　　者：邹盛强 翟利华[2] 林跃武[1] ZOU Sheng-qiang;ZHAI Li-hua;LIN Yue-wu(Sichuan Honghua Industrial Co.,Leshan 614300,China;Northwest Institute of Nuclear Technology,Xi’an 710024,China)

机构地区：[1]四川红华实业有限公司,乐山614300 [2]西北核技术研究所,西安710024

出　　处：《现代应用物理》2018年第1期60-65,共6页Modern Applied Physics

基　　金：国家重大科学仪器设备开发专项资助项目(2012YQ250003)

摘　　要：重点介绍了电场磁场聚焦原理、双聚焦条件下的计算和调试仿真。磁电双聚焦质量分析系统结构为圆柱面结构的静电场,离子轨道半径为360mm,偏转角为65°;磁场离子轨道半径为250mm,偏转角为90°,入射角90°,出射角26.5°。分别对磁场、电场进行独立调试和磁电双聚焦系统联合调试及技术指标测试。测试表明,双聚焦质量分析系统的分辨能力达到了设计要求,实现了双聚焦条件。The focusing principle of electric and magnetic analyzer is introduced,and the related calculation and simulation under the magnetic-electric double focusing condition are conducted here.The magnetic-electric double focusing mass analysis system has a cylindrical electrostatic analyzer(ESA)with ion orbital radius R e=360 mm,deflection angle?e=65°and a magnetic sector with ion orbital radius R m=250 mm,deflection angle?m=90°.The incident angle is set as 90°,the exit angle is set as 26.5°.Debugging tests which are conducted on single magnetic field,single electrical fields,and magnetic-electric double focusing field reveal that the mass resolution of double focusing analyzer can meet the design requirements for double focuses.

关 键 词：扇形磁场 静电分析器 双聚焦 仿真 

分 类 号：O657.63[理学—分析化学]