Computation of electron collisional ionization cross-sections of nitrogen and oxygen atoms and ions on Hartree–Fock–Slater model basis

The direct calculation of the differential and total cross sections of the processes of inelastic ionization of atoms and ions by electron impact in the distorted-wave approximation based on the characteristics of the state of atoms and ions obtained in the Hartree–Fock–Slater quantum-statistical model is presented. Calculated differential and total ionization cross-sections are compared to classical binary-encounter approximation, semiclassical impulse approximation and available experimental data. Results of calculations point to the computational approach proposed gives consistent results. Considering applicability of Hartree–Fock–Slater model in wide scope of temperatures and densities, such approach to the electron ionization cross-section calculation can be used in a broad range of energies and ion charges.