https://doi.org/10.1140/epjd/e2007-00318-y
Empirical model for electron impact ionization cross sections of neutral atoms
1
Department of Applied Physics & Electronic Engineering, University of Rajshahi, 6205 Rajshahi, Bangladesh
2
Department of Physics, University of Rajshahi, 6205 Rajshahi, Bangladesh
3
Graduate School of Electronic Science and Technology, Shizuoka University, 3-5-1 Johoku, Hamamatsu, 432-8011, Japan
Corresponding author: a mrtalukder@ru.ac.bd
Received:
27
June
2007
Revised:
30
September
2007
Published online:
23
November
2007
A simple empirical formula is proposed for the rapid calculation of electron impact total ionization cross sections both for the open- and closed-shell neutral atoms considered in the range 1≤ Z≤92 and the incident electron energies from threshold to about 104 eV. The results of the present analysis are compared with the available experimental and theoretical data. The proposed model provides a fast method for calculating fairly accurate electron impact total ionization cross sections of atoms. This model may be a prudent choice, for the practitioners in the field of applied sciences e.g. in plasma modeling, due to its simple inherent structure.
PACS: 34.80.Dp – Atomic excitation and ionization by electron impact
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007