Electron impact total ionization cross sections of beryllium and boron isoelectronic ions

Abstract

A simple user-friendly empirical formula is proposed to calculate the electron impact total single ionization cross sections of beryllium-like Be, B+, C2+, N3+, O4+, Ne6+, Fe22+, Hg76+, and U88+ and boron-like B, C+, N2+, O3+, Ne5+, Fe21+, Kr31+, and Xe49+ targets. A simplified and modified version of the Bell formula is used in the present model incorporating the ionic correction factor. The predicted ionization cross sections are compared with the available experimental and theoretical results. Excellent agreements are found for the incident energies ranging from threshold to 106 eV considered herein. The presented results achieve a level of agreement that is better than the calculations from the existing theoretical methods and empirical models. Hence, this model may be an excellent choice, due to its simplicity, for the practitioners in the fields of applied sciences and technologies.