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Role of screening and angular distributions in resonant x-ray emission of CO
Mid Sweden University.
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1997 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, Vol. 55, no 1, 134-145 p.Article in journal (Refereed) Published
Abstract [en]

Resonantly excited carbon and oxygen x-ray-emission spectra of gaseous carbon monoxide are presented. Emission spectra obtained with selective excitation to the pi* valence orbital and to various Rydberg levels are compared to satellite-free nonresonant spectra. Screening effects caused by the excited electron, creating energy shifts and intensity variations in the resonant spectra compared to the nonresonant spectra, are observed, as well as an angular dependence of the resonantly excited spectra. The experimental spectra are compared to simulated spectra where the vibronic part is computed by means of a lifetime-vibrational interference formalism. The electronic intensities are analyzed by a separate-state, self-consistent-held method and a formalism for resonant inelastic x-ray scattering, focusing On screening and angular dependence.

Place, publisher, year, edition, pages
1997. Vol. 55, no 1, 134-145 p.
Keyword [en]
K-SHELL EXCITATION, HIGH-RESOLUTION, SYNCHROTRON-RADIATION, VIBRATIONAL STRUCTURE, WAVE-FUNCTIONS, SPECTRA, FLUORESCENCE, MOLECULES, SYMMETRY, CARBON
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:miun:diva-1678Local ID: 1096OAI: oai:DiVA.org:miun-1678DiVA: diva2:26710
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2011-01-10Bibliographically approved

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