4d photoabsorption spectra of Sn II and Sn IV in the 30-65 eV region

M. A. Lysaght, D. Kilbane, A. Cummings, N. Murphy, P. Dunne, G. O'Sullivan, P. Van Kampen, J. T. Costello, E. T. Kennedy

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11 Citations (Scopus)


EUV photoabsorption spectra of tin ions Sn II and Sn IV have been recorded using the dual laser-produced plasma (DLP) technique in the 30-65 eV region. It is known from previous studies by Lysaght et al (2005 Phys. Rev. A 72 014502), in the 30-100 eV domain, that gradual 4f contraction along the isonuclear sequence of Sn I through Sn IV results in a redistribution of the oscillator strength from the continuum to the pseudo-discrete 4d → f channels, with many intense absorption lines dominating the spectra of Sn IV. Using Hartree-Fock with configuration interaction calculations allows us to successfully account for, and permits identification of, pseudo-discrete 4d → np, nf features within the spectra of Sn II and Sn IV.

Original languageEnglish
Pages (from-to)4247-4257
Number of pages11
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number23
Publication statusPublished - 14 Dec 2005
Externally publishedYes


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