Photoionization of Ne3+ ions in the region of the 1s -> 2p autoionizing resonance - art. no. 014704

Photoion yields of Ne4+ from Ne3+ ions were successfully measured in the re gion of the 1s --> 2p autoionizing resonance by a photon-ion mer ed-beam te chnique. A broad structure centered at 864.5 eV, which is composed of sever al transitions, was observed in the photoion-yield spectrum. The spectrum w as analyzed with the results of multiconfiguration Dirac-Fock calculations. The calculations revealed that the lines contained in the broad structure can be attributed to possible transitions from the 2s(2)2p(3) S-4(3/2), D-2 (3/2) and D-2(5/2) initial levels. The calculated spectrum satisfactorily s hows an overall agreement with the experimental one.