K -shell diagram and hypersatellite spectra of 4d transition elements

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Diamant , R , Huotari , S , Hämäläinen , K , Sharon , R , Kao , C C , Honkimäki , V , Buslaps , T & Deutsch , M 2009 , ' K -shell diagram and hypersatellite spectra of 4d transition elements ' , Physical Review A (Atomic, Molecular and Optical Physics) , vol. 79 , no. 6 , pp. 062512 . https://doi.org/10.1103/PhysRevA.79.062512

Titel: K -shell diagram and hypersatellite spectra of 4d transition elements
Författare: Diamant, R.; Huotari, S.; Hämäläinen, K.; Sharon, R.; Kao, C. C.; Honkimäki, V.; Buslaps, T.; Deutsch, M.
Upphovmannens organisation: Accelerator Laboratory (Department of Physics) (-2009)
Datum: 2009
Språk: eng
Sidantal: 12
Tillhör serie: Physical Review A (Atomic, Molecular and Optical Physics)
ISSN: 1050-2947
DOI: https://doi.org/10.1103/PhysRevA.79.062512
Permanenta länken (URI): http://hdl.handle.net/10138/27373
Abstrakt: The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.The K-shell diagram (K alpha(1,2) and K beta(1,3)) and hypersatellite (HS) (K-h alpha(1,2)) spectra of Y, Zr, Mo, and Pd have been measured with high energy-resolution using photoexcitation by 90 keV synchrotron radiation. Comparison of the measured and ab initio calculated HS spectra demonstrates the importance of quantum electrodynamical (QED) effects for the HS spectra. Phenomenological fits of the measured spectra by Voigt functions yield accurate values for the shift of the HS from the diagram lines, the splitting of the HS lines, and their intensity ratio. Good agreement with theory was found for all quantities except for the intensity ratio, which is dominated by the intermediacy of the coupling of the angular momenta. The observed deviations imply that our current understanding of the variation of the coupling scheme from LS to jj across the periodic table may require some revision.
Subject: 114 Physical sciences
Referentgranskad: Ja
Användningsbegränsning: openAccess
Parallelpublicerad version: acceptedVersion


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