Lifetime and transition probability determination in Xe IX

A new set of transition probabilities is proposed for Xe IX. They have been calculated by two different theoretical approaches i.e. a fully relativistic multiconfiguration Dirac–Fock (MCDF) method and a partly relativistic Hartree–Fock (HFR) approach taking core-polarization effects into account. Th...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2009-03, Vol.110 (4), p.284-292
Main Authors: Garnir, H.-P., Enzonga Yoca, S., Quinet, P., Biémont, É.
Format: Article
Language:English
Subjects:
Accuracy
Atomic lifetimes
Beams (radiation)
Beam–foil
Mathematical models
Radiative transfer
Spectroscopy
Transition probabilities
Van de Graaff accelerators
Xe IX
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Summary:A new set of transition probabilities is proposed for Xe IX. They have been calculated by two different theoretical approaches i.e. a fully relativistic multiconfiguration Dirac–Fock (MCDF) method and a partly relativistic Hartree–Fock (HFR) approach taking core-polarization effects into account. Their accuracy has been evaluated through comparisons with lifetime measurements for 11 levels performed using beams of Xe + ions produced by a 2 MV Van de Graaff accelerator. The agreement theory-experiment is nice for most of the levels and gives more weight to the theoretical models used for the calculations and, consequently, to the new transition probabilities.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2008.11.007