XAFS in the high-energy region

Y. Nishihata, O. Kamishima, Y. Kubozono, H. Maeda, S. Emura

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    13 Citations (Scopus)

    Abstract

    XAFS (X-ray absorption fine-structure) spectra were measured near K-absorption edges of Ce (40.5 keV), Dy (53.8 keV), Ta (67.4 keV) and Pt (78.4 keV). The blunt K-edge jump due to the finite lifetime of the core hole was observed. This makes it difficult to extract EXAFS (extended X-ray absorption fine-structure) functions at low k values. Local structure parameters can be evaluated from the EXAFS spectra above K-absorption edges in the high-energy region as well as from those above LIII-edges. It was found that the finite-lifetime effect of the core hole is effectively taken into the photoelectron mean-free-path term, as predicted theoretically.

    Original languageEnglish
    Pages (from-to)1007-1009
    Number of pages3
    JournalJournal of Synchrotron Radiation
    Volume5
    Issue number3
    DOIs
    Publication statusPublished - May 1 1998

    Keywords

    • Extended X-ray fine-structure (EXAFS)
    • Structure parameters
    • X-ray absorption fine-structure (XAFS)

    ASJC Scopus subject areas

    • Radiation
    • Nuclear and High Energy Physics
    • Instrumentation

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