%0 Journal Article
%T Experimental investigation of transfer ionization mechanism in slow He2+-He collisions<br>低能He2+-He碰撞体系转移电离机理的实验研究
%A Zhu Xiao-Long
%A Ma Xin-Wen
%A Li Bin
%A Feng Wen-Tian
%A Zhang Shao-Feng
%A Liu Hui-Ping
%A Qian Dong-Bin
%A Zhang Da-Cheng
%A <br>朱小龙
%A 马新文
%A 李斌
%A 冯文天
%A 张少锋
%A 刘惠萍
%A 钱东斌
%A 张大成
%J 物理学报
%D 2010
%I 
%X The processes of transfer ionization in He2+-He collisions at energies ranging from 20 to 40 keV have been studied experimentally by means of cold target recoil ions momentum spectroscopy. From the longitudinal momentum spectra of recoil ions, different mechanisms of transfer ionization have been obtained. The results show that one of the electrons of helium atom being captured into the ground state of projectile ion He2+ and the other one emitted to the continuum state of projectile or target are the dominant mechanisms of transfer ionization. The autoionization cross section of projectile after two-electron capture into a double excited state is small. Transfer ionization for one target electron capture into ground state and the other one into the continuum of projectile mainly occurs at large impact parameter collisions.
%K COLTRIMS
%K transfer ionization mechanism
%K ion-atom collision<br>冷靶反冲离子动量谱仪，
%K 转移电离机理，
%K 离子原子碰撞
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=47E7D63996901B4A2381EE9458A38D08&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=CA4FD0336C81A37A&sid=E6A0A363CA4FC5CF&eid=23F919F7BAF87909&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0