Ba 6 p sub j nf sub j prime autoionizing series

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.41.316· OSTI ID:7243877

Jones, R R; Dai, C J; Gallagher, T F ^[1]

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1. Department of Physics, University of Virginia, Charlottesville, Virginia 22901 (US)

Members of the 6{ital p}{sub {ital j}}nf{sub j{prime}} autoionizing series in barium have been observed experimentally using multistep laser excitation. The recorded spectra exhibit extremely broad profiles for {ital n} values ranging from 7 to 30. We have fitted the spectra using an energy-independent multichannel quantum-defect theory model that reproduces the data reasonably well in spite of the fact that the full widths at half maximum of the excitation profiles are comparable in magnitude to the energy spacings between adjacent states. Experimental quantum defects and autoionization rates are presented along with the parameters determined from the theoretical fit.

• OSTI ID: 7243877
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:1; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALKALINE EARTH METALS
AUTOIONIZATION
BARIUM
DYE LASERS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LEVELS
IONIZATION
LASER SPECTROSCOPY
LASERS
LIQUID LASERS
METALS
MULTILEVEL ANALYSIS
SPECTROSCOPY