Multiple ionization of neon 2s- and 2p-electrons induced by ion atom collisions

Absolute cross sections for production of the 1s22s2p5 and 1s22s02p6 configurations of neon in collisions of H+, He+, and Ne+ with Ne and He have been measured by observation of radiative transitions in the spectral range of the vacuum ultraviolet for energies between 50 keV and 1 MeV. Projectile and target emission have been separated. The dependence of the cross sections upon impact velocity is discussed and compared with theoretical calculations. The relative population of the1P1 and3P2, 1, 0 and the3P2, 1, 0 fine structure levels of the 1s22s2p5 configuration is measured as function of impact velocity for the different projectile target combinations.