TY - JOUR
T1 - Strong Dynamical Screening of the ( e, 2e) Processes for Electron Impact Ionization of Helium in the Perpendicular Plane Symmetric Geometry
AU - Chen , Zhan-Bin
JO - Journal of Atomic and Molecular Sciences
VL - 3
SP - 236
EP - 243
PY - 2012
DA - 2012/03
SN - 3
DO - http://doi.org/10.4208/jams.070111.080311a
UR - https://global-sci.org/intro/article_detail/jams/8204.html
KW - perpendicular plane geometry, doubly-symmetric, sommerfeld parameter.
AB - <p style="text-align: justify;">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.</p>