Open AccessCross sections of Cq+(q=14)electron loss in collision with He, Ne and Ar investigating
Author(s) -
鲁彦霞,
谢安平,
李小华,
向东,
路兴强,
李新霞,
黄千红
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.083401
Subject(s) - projectile , atomic physics , cross section (physics) , electron , physics , ionization , collision , electron capture , nuclear physics , ion , computer security , quantum mechanics , computer science
Electron-loss cross sections in Cq+(q=14)collisions with He,Ne,Ar are measured in the intermediate-velocity regime, and the ratio of the two-electron-loss cross section to the one-electrom-loss cross section, R21, are calculated. It is shown that a single-channel analysis is not sufficient to explain the results, and that projectile electron loss, electron capture by the projectile, and target ionization must be considered together to interpreter the data. The screening and antiscreening theory can annalyse the threshold velocity, but cannot totally explain the data of R21 with velocity increasing. The effective charge of target increases with velocity increasing. Ne and Ar have the same effective charges in the velocity regime, but He has a smaller one at the same velocity. The correlation between loss electrons is also analyzed.