Eur. Phys. J. D 53, 133-139 (2009)
https://doi.org/10.1140/epjd/e2009-00105-x

Electron impact double ionization cross sections of light elements

¹ Department of Applied Physics & Electronic Engineering, University of Rajshahi, 6205 Rajshahi, Bangladesh
² Department of Physics, University of Rajshahi, 6205 Rajshahi, Bangladesh

Corresponding author: ^a mrtalukder@ru.ac.bd

Received: 3 January 2009
Revised: 23 February 2009
Published online: 26 March 2009

Abstract

A simple user-friendly semiempirical model is proposed to calculate electron impact double ionization cross sections of He, Li, Li⁺, B⁺, C⁺, C³⁺, O, O²⁺, O³⁺, Ne, Ne⁺, Ne²⁺, Na, Mg, Al³⁺, S, and Ar^q+ (q=0–7) targets for the incident electron energies from threshold to 10⁶ eV. The contributions in the total double ionization cross sections from the direct double ionization and inner-shell ionization processes are taken into account on the basis of experimental data considered. The results of the present analysis are compared with the available experimental data and theoretical calculations. The model is found successful for the description of experimental cross sections. Since, this model may be a prudent selection to meet the demand level in plasma modeling due to its simple inherent structure.