Title: Fast Method of XANES Data Collection Suitable for Oxidation State Mapping
Authors: BIELEWSKI MarekERIKSSON MattsHIMBERT JeromeBETTI MariaBELLONI FabioFALKENBERG G.
Citation: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY vol. 282 no. 2 p. 355-359
Publisher: SPRINGER
Publication Year: 2009
JRC N°: JRC54484
ISSN: 0236-5731
URI: http://www.springerlink.com/content/105692/
http://publications.jrc.ec.europa.eu/repository/handle/JRC54484
DOI: 10.1007/s10967-009-0242-0
Type: Contributions to Conferences
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.
JRC Institute:Institute for Transuranium Elements

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