ELECTRONIC STATE-LIFETIME INTERFERENCE OBSERVED AT NE K INTER-RESONANCE EXCITATION

Electronic decay spectra of Ne, excited at the is threshold have been measured. Final states of the 2p(-2)n'p configuration are reached via 1s(-1)np intermediate states. Appreciable intensity from spectator sha ke transitions (n not equal n') is found and the predictions of a simp le intensity model are evaluated. The model reproduces the experimenta l results at on-resonance excitation. At inter-resonance excitation an apparent excitation energy dependence of the shake probability is acc ounted for by electronic state-lifetime interference theory.