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The K-shell Auger decay of atomic oxygen
Mid Sweden University.
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1997 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, Vol. 30, no 20, 4489-4497 p.Article in journal (Refereed) Published
Abstract [en]

Relative photoionization cross sections for O+ and O2+ produced by the Auger decay of a 1s hole in atomic oxygen were measured by using synchrotron radiation between 525 and 553 eV. Energies and quantum defects of the members of the two Rydberg series converging to [1s]2s22p4(4P) and [1s]2s22p4(2P) ionization thresholds were determined. In addition, the 2P and 4P ionization thresholds were calculated from the two Rydberg series. The 182 meV resolution of the monochromator allowed a detailed study over both thresholds revealing evidence for post-collision interaction and allowing a comparison of the ionization continuum above both 2P and 4P thresholds with that of the ionization continuum above the Ar L2 and L3 edges. This comparison indicates that the lifetimes of the Ar(2p) and O(1s) hole states are approximately the same.

Place, publisher, year, edition, pages
1997. Vol. 30, no 20, 4489-4497 p.
Keyword [en]
POST-COLLISION INTERACTION, PHOTOELECTRON RECAPTURE, NATURAL WIDTHS, THRESHOLD, PHOTOIONIZATION, IONIZATION, AR, SPECTRUM
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:miun:diva-1469Local ID: 145OAI: oai:DiVA.org:miun-1469DiVA: diva2:26501
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2011-01-10Bibliographically approved

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