Multiplet structure in the high-resolution x-ray emission spectrum of neon

A high-resolution electron-excited K emission spectrum of neon has been recorded. The spectrum shows transitions in 1-5-times ionized neon. The KL₁ and KL_2,3 satellites are well resolved and their relative intensities yield information about the formation of the multiple vacancy states. A number of lines have been interpreted as transitions in triply ionized neon using a simple multiple shake-off model and calculated energies and fluorescence yields. One line in the high-energy part of the spectrum has been interpreted as a KK hypersatellite. Energies of 27 lines in the spectrum have been measured, and values for the 1s state width and the 1s binding energy are presented.