Following Electron Impact Excitations of Rn, Ra, Th, U and Pu Single Atom L Sub-Shells Ionization Cross Section Calculations by Using Lotz's Equation

Abstract

L shell ionization cross section and Li subshells ionization cross sections of Rn, Ra, Th, U, Pu atoms calculated. For each of atoms, ten different electron impact energy values (Eo) are used. Calculations carried out by using Lotz equation in Matlab. First, calculations done for non-relativistic case by using non-relativistic Lotz equation then repeated with relativistic Lotz equation. σL total and σLi(i = 1,2,3) subshells ionisation cross section values obtained for Eo values in the energy range of ELi <Eo<4ELi for each atom. Starting almost from Eo = ELi values of the each sub shell ionization threshold energy, σL total and σLi (i = 1,2,3) are increasing rapidly with Eo. For a fixed Eo = 3.ELi), while Z increases from 86<Z<94, σL and σLi (i = 1, 2,3) are decrease. These results will also help to understand some σLi(i = 1,2,3) subshells results obtained from other electron-atom impact studies. © 2016 AIP Publishing LLC.