Optimization of Actinide Quantification by Electron Probe Microanalysis

Conventional quantitative electron probe microanalysis of actinides requires the use of reference standard samples. However, for such elements, standards are generally not available. To overcome this difficulty, standardless methods of analysis are used, in which the x-ray intensity emitted by the s...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2014-08, Vol.61 (4), p.1977-1983
Main Authors: Moy, A., Merlet, C., Llovet, X., Dugne, O.
Format: Article
Language:English
Subjects:
Actinides
Calculated standards
Cross sections
Crystals
electron probe microanalysis
Electron probes
Energy measurement
Ionization
ionization cross section
Lead
Mathematical analysis
Nuclear Experiment
Optimization
Physics
Production
self-supported thin films
standardless quantification
Uncertainty
Uranium
X-rays
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Summary:Conventional quantitative electron probe microanalysis of actinides requires the use of reference standard samples. However, for such elements, standards are generally not available. To overcome this difficulty, standardless methods of analysis are used, in which the x-ray intensity emitted by the standard is calculated. To be reliable, such calculations require accurate knowledge of physical data such as the x-ray production cross section. However, experimental data of this quantity are not always available for actinide elements. In the present work, experimental L and M x-ray production cross sections were measured for elements uranium and lead. Measurements were performed with two electron microprobes using wavelength-dispersive spectrometers using thin self-supporting targets. Experimental results are compared with calculated cross sections obtained from different analytical formulae, and, whenever possible, with experimental data obtained from the literature.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2014.2321016