Valence-multiplet Auger decay of the doubly excited (vp2)nl states of neon and argon
- 14 March 1992
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 25 (5) , 931-947
- https://doi.org/10.1088/0953-4075/25/5/009
Abstract
The rates of decay, both radiative and non-radiative, have been calculated for the valence shake-up states (vP2)nl of Ne (v=2) and Ar (v=3). The only possible non-radiative decay mode is the valence-multiplet participator Auger transition: (vp2) (LS)nl to (vp2)(L'S')+e-, where energy for ionization is gained through the multiplet change LS to L'S'. When Auger decay is allowed it is found to be completely dominant over the radiative paths, with typical fluorescence yields of the order of 10-4%. Such considerations can be of critical importance in the analysis of direct double-ionization data. The decay rates are calculated within the single-configuration non-relativistic Hartree-Fock approximation. The appearance of Auger spectra resulting shake-up series is discussed and a simple method of modelling is presented.Keywords
This publication has 24 references indexed in Scilit:
- Valence Auger and X-ray participator and spectator processes for neon and argon atomsJournal of Physics B: Atomic, Molecular and Optical Physics, 1991
- Theoretical study of the satellite structure in the photoelectron spectra of neon and argonJournal of Physics B: Atomic, Molecular and Optical Physics, 1990
- Observation of participator Auger decay following valence photoionization with excitationPhysical Review Letters, 1989
- Observation of many new argon valence satellites near thresholdPhysical Review Letters, 1988
- Residual limitations of theoretical atomic-electron binding energiesPhysical Review A, 1985
- Shake theory predictions of excited-state populations following 1s ionisation in argonJournal of Physics B: Atomic and Molecular Physics, 1983
- Threshold studies of a multivacancy process in theregion of argonPhysical Review A, 1983
- Satellite structure in atomic spectra. II. The outer-shell photoelectron spectra of the rare gasesJournal of Physics B: Atomic and Molecular Physics, 1982
- A general multi-configuration Hartree-Fock programComputer Physics Communications, 1978
- Auger Transition Probabilities for Elements with Low and Intermediate Atomic NumbersPhysical Review A, 1973