TRANSITION ENERGIES AND RELATIVE INTENSITIES OF THE ARL2,3-MM DIAGRAMAUGER LINES - A HIGH-RESOLUTION STUDY

The Ar L-2,L-3-MM Auger spectrum induced by impact of 2.0 keV electron s was measured with high resolution (68 +/- 4 meV) in the 15-90 degree s angular region, Relative yields, level widths and transition energie s have been determined for the diagram Auger lines originating from th e (2)p(1/2) and P-2(3/2) initial vacancy states. The data are compared with those of earlier experimental studies and theoretical calculatio ns, including multiconfiguration Hartree-Fock calculations performed i n this work. The isotropy of the studied lines has been confirmed, The measured relative intensities of the fine-structure components of the L-23-MM (P-3(0,1,2)) Auger triplets have been found different from th ose obtained in theoretical calculations and earlier experiments. (C) 1997 Elsevier Science B.V.