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Double ionization of atomic cadmium
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Soft X-Ray Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Soft X-Ray Physics.
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2011 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 83, no 2, 023424- p.Article in journal (Refereed) Published
Abstract [en]

We have recorded the double photoionization spectrum of atomic Cd at four different photon energies in the range 40-200 eV. The main channel is single ionization and subsequent decay of excited Cd+ states, some involving Coster-Kronig processes, whereas direct double ionization is found to be weak. The decay of the excited Cd+ states shows a strong selectivity, related to the configuration of the final state. Double ionization leading to the Cd2+ ground state is investigated in some detail and is found to proceed mainly through ionization and decay of 4d correlation satellites. The most prominent autoionization peaks have been identified with the aid of quantum-mechanical calculations.

Place, publisher, year, edition, pages
2011. Vol. 83, no 2, 023424- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-149573DOI: 10.1103/PhysRevA.83.023424ISI: 000287795200013OAI: oai:DiVA.org:uu-149573DiVA: diva2:405176
Available from: 2011-03-21 Created: 2011-03-21 Last updated: 2016-02-29Bibliographically approved

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