1s2s2p{sup 2}3s {sup 6}P-1s2p{sup 3}3s {sup 6}S{sup o} Transitions in O IV

Journal Article · Sun Jun 01 04:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.062507· OSTI ID:20636555

Bin, Lin; Berry, H Gordon; Shibata, Tomohiro; Livingston, A Eugene; Savukov, Igor ^[1]; Garnir, Henri-Pierre; Bastin, Thierry ^[2]; Desesquelles, J ^[3]

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1. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
2. IPNAS, University of Liege, B4000 Liege (Belgium)
3. Lab Spectrometrie Ion and Mol, University of Lyon 1, F-69622 Villeurbanne (France)

The energies and lifetimes of doubly excited sextet states of boron-like O IV, F V, and Ne VI are calculated with the multiconfiguration Hartree-Fock approach, including QED and higher-order corrections, and also with the multiconfiguration Dirac-Fock GRASP code. The wavelengths and transition rates of electric-dipole transitions from the inner-shell excited terms 1s2s2p{sup 2}3s {sup 6}P-1s2p{sup 3}3s {sup 6}S{sup o} are investigated by beam-foil spectroscopy in the XUV spectral region. The predicted transition wavelengths agree with the experiment. The higher-order corrections, fine structures, and spectrum with high wavelength resolution are found to be critically important in these comparisons. Nine new lines have been identified. The ground sextet states of boronlike atoms are metastable and well above several ionization levels. These are possible candidates for XUV and soft x-ray lasers.

• OSTI ID: 20636555
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BORON
COMPARATIVE EVALUATIONS
CORRECTIONS
E1-TRANSITIONS
EXCITED STATES
EXTREME ULTRAVIOLET RADIATION
FINE STRUCTURE
FLUORINE
HARTREE-FOCK METHOD
ION SPECTROSCOPY
LIFETIME
NEON
OXYGEN
PHOTOIONIZATION
QUANTUM ELECTRODYNAMICS
RESOLUTION
SOFT X RADIATION
WAVELENGTHS