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物理学报 2005
CDW-EIS calculation in He2++H impact ionization
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Abstract:
The He 2+ +H Impact Ionization process is investigated using a continuum 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.
