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|Title:||Fast Method of XANES Data Collection Suitable for Oxidation State Mapping|
|Authors:||BIELEWSKI Marek; ERIKSSON Matts; HIMBERT Jerome; BETTI Maria; BELLONI Fabio; FALKENBERG G.|
|Citation:||JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY vol. 282 no. 2 p. 355-359|
|Type:||Articles in periodicals and books|
|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 Directorate:||Nuclear Safety and Security|
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