Ar^＋和Cl^＋的电子碰撞电离截面测量  

A crossed electron-ion beams apparatus for electron impact ionization of ions and the cross-section measurement for ionization of Ar￣+ and Cl￣+

作　　者：施伟[1] 方渡飞[1] 陆福全[1] 高海滨[1] 顾健[1] 吴松茂[1] 吴卫民[1] 汤家镛[1] 杨福家[1] 

机构地区：[1]复旦大学李政道物理学综合实验室,复旦大学原子核科学系

出　　处：《复旦学报（自然科学版）》1994年第1期27-32,共6页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金;国家教委高等学校博士学科点专项科研基金;霍英东教育基金

摘　　要：建立了一个离子束与电子束交叉碰撞电离实验装置．测量了电子能量在３０～５００ｅＶ范围内Ａｒ＋和Ｃｌ＋的单电子电离截面．截面的误差约为±１３％．n apparatus for electron impact ionization of ions was constructed. Using the crossed - beams technique, a single - charge - ion beam collides perpendicularly with an electron beam.The collision products are analysed and measured. As the first stage of our research project on electron impact ionization of ions, the absolute cross sections for single ionization of Ar+ and Cl+ at electron energies ranging from 30 to 500 eV have been measured. the uncertainty of the cross section is about ± 13%.

关 键 词：交叉束装置 碰撞电离 截面 氯 氩 

分 类 号：O571.1[理学—粒子物理与原子核物理]