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.
BIELEWSKI Marek;
ERIKSSON Matts;
HIMBERT Jerome;
BETTI Maria;
BELLONI Fabio;
FALKENBERG G.;
2009-11-30
SPRINGER
JRC54484
0236-5731,
http://www.springerlink.com/content/105692/,
https://publications.jrc.ec.europa.eu/repository/handle/JRC54484,
10.1007/s10967-009-0242-0,
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