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Fast method of XANES data collection suitable for oxidation state mapping

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Abstract

XANES has been recently used for the determination of oxidation states of actinides in environmental samples. To obtain reliable results, however, a sufficiently long counting time at every probing energy and a large number of experimental points per XANES spectrum are required, due to the complex mathematical model used to fit the measured spectrum. This makes micro-mapping difficult, since the time required for data collection becomes unacceptably long. A simplified model for data collection and evaluation is presented. Its effectiveness has been tested by measuring the distribution of Pu oxidation states in a “hot” particle coming from a nuclear weapon test site.

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Acknowledgements

We gratefully acknowledge the HASYLAB facility, Hamburg, Germany, for the provision of beam-time at the beamline L of the Doris storage ring. M. Bielewski gratefully acknowledges the European Commission for funding his research fellowship at the Joint Research Centre’s Institute for Transuranium Elements, Karlsruhe, Germany.

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Authors and Affiliations

  1. European Commission, Joint Research Centre, Institute for Transuranium Elements, P.O. Box 2340, 76125, Karlsruhe, Germany

    M. Bielewski, J. Himbert, M. Betti & F. Belloni

  2. International Atomic Energy Agency, IAEA-MEL Laboratories, 98000, Monaco, Monaco

    M. Eriksson & M. Betti

  3. HASYLAB at DESY, 22607, Hamburg, Germany

    G. Falkenberg

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  1. M. Bielewski
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  2. M. Eriksson
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  3. J. Himbert
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  4. M. Betti
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  5. F. Belloni
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  6. G. Falkenberg
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Correspondence to M. Bielewski.

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Bielewski, M., Eriksson, M., Himbert, J. et al. Fast method of XANES data collection suitable for oxidation state mapping. J Radioanal Nucl Chem 282, 355–359 (2009). https://doi.org/10.1007/s10967-009-0242-0

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  • DOI: https://doi.org/10.1007/s10967-009-0242-0

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