Photoabsorption cross sections for positive atomic ions with Z equal to or less than 30

Abstract

Photoabsorption cross sections are presented for elements from Z = 2 to Z = 30 for all stages of ionization from the neutral to the two-electron system. Photon energies between 5 and 5000 eV were considered in a fine enough energy mesh to allow interpolation, and the calculations were performed by using Hartree-Slater central-field wave functions with no core relaxation. Total photoionization cross sections are also provided; these total cross sections were obtained by first doing the calculation on each subshell and then summing.