Abstract
To support the nuclear safeguards particle analysis, a method was developed to produce micrometer-sized uranium oxide microspheres with a known uranium content and isotope ratio, which are intended to be characterized as certified reference material. To simplify handling of the produced particles, the collected particles have been transferred into ethanol suspensions. In addition to a demonstration of the suitability and new capabilities of such particle suspensions, such as the preparation of particle mixtures, the stability of the particles has been investigated and demonstrated with regard to dissolution and isotopic exchange.
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Acknowledgements
We thank M. Güngör for his support with the acquisition of Scanning Electron Microscopy images and F. Sadowski and D. Schneider for carrying out the Quadrupole ICP-MS analyses.
Funding
This work was supported under task C.45/A1961 by the German Support Programme to the IAEA and by the Federal Ministry for Economic Affairs and Energy, Germany, under the Programme “Neu- und Weiterentwicklung von Safeguardstechniken und -methoden” (FKZ 02W6263).
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Middendorp, R., Klinkenberg, M. & Dürr, M. Uranium oxide microparticle suspensions for the production of reference materials for micro-analytical methods. J Radioanal Nucl Chem 318, 907–914 (2018). https://doi.org/10.1007/s10967-018-6076-x
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DOI: https://doi.org/10.1007/s10967-018-6076-x