Low-energy Auger spectra of Ar and Kr emitted in cascade decays after inner shell ionization

Abstract

L 23MM spectra of argon and Auger spectra of krypton in the energy range of 0 to 180 eV emitted during cascade decays of inner-shell vacancies are calculated by straightforward construction of de-excitation trees. All possible decay pathways through diagram Auger, Coster-Kronig, and radiative transition are considered, as well as the shake-off processes both upon creation of an initial vacancy and during the cascade development. Good agreement with available experimental Ar L 23MM spectra at various excitation energies is obtained. Strong dependence of low-energy Auger spectrum of krypton on the mode of excitation is predicted.