Strong Dynamical Screening of the ( e, 2e) Processes for Electron Impact Ionization of Helium in the Perpendicular Plane Symmetric Geometry
Year: 2012
Author: Zhan-Bin Chen
Journal of Atomic and Molecular Sciences, Vol. 3 (2012), Iss. 3 : pp. 236–243
Abstract
We apply BBK, DS3C model and the new modified Sommerfeld parameters of the present DS3C model to calculation of the triple differential cross sections (TDCS) for electron impact ionization of helium in the perpendicular plane symmetric geometry. The results of the present are compared with the measurements and those of other theoretical models. It was found that the present results give a better description for the experimental data and the dynamical screening effects are strong in this geometry. The influence of the Sommerfeld parameters on the triple differential cross sections is also analyzed and discussed in the perpendicular plane geometry.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/jams.070111.080311a
Journal of Atomic and Molecular Sciences, Vol. 3 (2012), Iss. 3 : pp. 236–243
Published online: 2012-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 8
Keywords: perpendicular plane geometry doubly-symmetric sommerfeld parameter.