Krypton M-shell Auger and Coster-Kronig electron energies

Abstract

Intermediate coupling theory has been used along with the results from nonrelativistic Hartree-Fock calculations for average atomic configurations reported earlier to determine the energy characteristics of the multiplet structure associated with M-shell Auger and Coster-Kronig transition processes in the krypton atom. Detailed findings are presented for the neutral atom, while for the various multiply ionized states of the atom the relevant radial integrals are provided. These will enable the many multiplets of the possible radiationless de-excitation processes to be evaluated as required. For the M₄₅-N₁N₂₃ and M₄₅-N₂₃N₂₃ processes where the fine-structure is experimentally well resolved the predicted lines from an adiabatic model are within 1 to 3 eV of the observed peaks. For other processes the limited information available suggests that larger deviations may occur, especially when configurations involving holes in an s subshell are involved.