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Absolute photoionization cross section measurements of the Kr I-isoelectronic sequence
Kilbane, Deirdre; Folkmann, F.; Banahan, Caroline; Scully, S.; Kjeldsen, H.; van Kampen, Paul; Mansfield, M.W.D.; Costello, John T.; West, J.B.
Photoionization spectra have been recorded in the 4s, 4p and 3d resonance regions for the Kr Iisoelectronic sequence using both the dual laser produced plasma technique (at DCU) to produce photoabsorption spectra, and the merged ion beam and synchrotron radiation technique (at ASTRID) to measure absolute photoionization cross sections. Profile parameters are compared for the 4s − np resonances of Rb+ and Sr2+. Many new 4p " ns, md transitions are identified with the aid of Hartree-Fock calculations, and consistent quantum defects are observed for the various ns and md Rydberg series. Absolute single and double photoionization cross sections recorded in the 3d region for Rb+ and Sr2+ ions show preferential decay via double photoionization. This is only the second report where both the DLP technique and the merged beam technique have been used simultaneously to record photoionization spectra, and the advantages of both techniques (i.e. better resolution in the case of DLP and values for absolute photoionization cross sections in the case of the merged beam technique) are highlighted.
Keyword(s): Laser plasmas; Physics; Photonics
Publication Date:
2007
Type: Other
Peer-Reviewed: Unknown
Language(s): English
Institution: Dublin City University
Citation(s): Kilbane, Deirdre, Folkmann, F., Banahan, Caroline, Scully, S., Kjeldsen, H., van Kampen, Paul, Mansfield, M.W.D., Costello, John T. and West, J.B. (2007) Absolute photoionization cross section measurements of the Kr I-isoelectronic sequence. Physical Review A, 75 (3). ISSN 1050-2947
Publisher(s): The American Physical Society
File Format(s): application/pdf
Related Link(s): http://doras.dcu.ie/99/1/physical_review_A_03_07.pdf,
http://dx.doi.org/10.1103/PhysRevA.75.032711
First Indexed: 2009-11-05 02:00:15 Last Updated: 2019-02-09 07:05:34