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4d → 5p transitions in the EUV photoabsorption spectrum of Ba IV, Ba v and Ba VI
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science. School of Physics, University College Dublin, Belfield, Dublin 4, Ireland.
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2006 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 39, no 2, 365-373 p.Article in journal (Refereed) Published
Abstract [en]

The photoabsorption spectra of Ba IV-Ba VI have been recorded using the dual laser plasma technique. Discrete structure due to 4d → 5p transitions has been observed in the 75-85 eV region and identified using Hartree-Fock with configuration interaction calculations. The excited states decay by autoionization involving ejection of 5s or 5p electrons and rates for the different processes and resulting linewidths were also calculated. From these calculations, synthetic spectra were produced and show excellent agreement with the experimental data.

Place, publisher, year, edition, pages
2006. Vol. 39, no 2, 365-373 p.
Keyword [en]
Barium, Electron transitions, Ionization, Laser produced plasmas, Laser theory, Ultraviolet radiation, Autoionization, Dual laser plasma techniques, Excited states, Photoabsorption spectra, Light absorption
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:kth:diva-156366DOI: 10.1088/0953-4075/39/2/011ISI: 000235457800014ScopusID: 2-s2.0-29144453885OAI: diva2:766439

QC 20141127

Available from: 2014-11-27 Created: 2014-11-26 Last updated: 2015-10-15Bibliographically approved

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Niga, Petru
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