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Two-photon coincidence studies of highly-charged ion relaxation in solids
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
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2009 (English)In: European Physical Journal D: Atomic, Molecular and Optical Physics, ISSN 1434-6060, E-ISSN 1434-6079, Vol. 54, no 3, 623-628 p.Article in journal (Refereed) Published
Abstract [en]

We studied the relaxation of hollow atoms by two-photon transitions during the stopping of slow (E=8.5q keV) highly charged Pbq+ (q=53-58) ions in a thin Ta foil. The X-rays emitted during the relaxation process were detected in coincidence with two Si(Li) detectors. Particular attention was paid to the role of the internal dielectronic excitation (IDE) in the relaxation dynamics. We found a clear contribution to relaxation by the IDE process also for projectiles with initial M-shell vacancies and IDE speeds up relaxation of electrons from high Rydberg states by directly filling vacancies in the N-shell that is accompanied with the excitation of M-shell electrons. We discuss the relaxation mechanism, and present results for the fluorescence yield and the IDE probability of highly charged Pb ions in a solid.

Place, publisher, year, edition, pages
2009. Vol. 54, no 3, 623-628 p.
Keyword [en]
x-ray-emission, electron-emission, above-surface, coster-kronig, hollow atoms, slow, rates, auger, neutralization, fluorescence
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-59970DOI: 10.1140/epjd/e2009-00206-6ISI: 000268789000010OAI: oai:DiVA.org:su-59970DiVA: diva2:432507
Note
authorCount :5Available from: 2011-08-04 Created: 2011-08-02 Last updated: 2017-12-08Bibliographically approved

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