Open AccessCDW-EIS calculation in He2++H impact ionization
Author(s) -
Ning Ye,
Bin He,
Chunlei Liu,
Jun Yan,
Jianguo Wang
Publication year - 2005
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.54.3075
Subject(s) - projectile , ionization , impact ionization , atomic physics , physics , electron ionization , range (aeronautics) , impact parameter , eikonal equation , eikonal approximation , impact energy , binary number , materials science , ion , quantum mechanics , arithmetic , mathematics , composite material
The He2+H Impact Ionization process is investigated using a continu um distorted wave method with the eikonal initial-state(CDW-EIS) approximation.The total,single- and double-differential cross sections are obtained in the projectile energy ranges from 30keV/u to 2000keV/u.The total cross sections are compared with the existing theoretical and experimental data.When the projectile energy is larger than 100keV/u,our results are in good agreement with the experimental measurements,while about 50% less than experimental data in the lower energy range.The ionization mechanism of soft-collisions,electron captured to continuum states and binary-encounter collisions are also displayed.