LOW-ENERGY AUGER-SPECTRA OF AR AND KR EMITTED IN CASCADE DECAYS AFTERINNER-SHELL IONIZATION

L(23)MM spectra of argon and Auger spectra of krypton in the energy ra nge of 0 to 180 eV emitted during cascade decays of inner-shell vacanc ies are calculated by straightforward construction of de-excitation tr ees. All possible decay pathways through diagram Auger, Coster-Kronig, and radiative transition are considered, as well as the shake-off pro cesses both upon creation of an initial vacancy and during the cascade development. Good agreement with available experimental Ar L(23)MM sp ectra at various excitation energies is obtained. Strong dependence of low-energy Auger spectrum of krypton on the mode of excitation is pre dicted.