Charge-state distributions and the population of x-ray emitting states

The population of excited states of neon projectiles has been deduced from highresolution x-ray spectra. From the comparison of the satellite and the hypersatellite spectrum we conclude that the population of the outer shells is insensitive to the presence of either one or twoK-shell vacancies. On the basis of a model of independent electrons the population distribution including states with filledK-shell can be estimated. The deduced mean charge states compare rather well with results obtained from beam analysis over a projectile energy range from 5 to 18 MeV.