Abstract
The quantification of uranium (U) by Kinetic Phosphorescence Analysis (KPA) is negatively impacted by the presence of silver (Ag). KPA can be combined with gamma spectroscopy to determine recovery of short-lived uranium isotopes after radiochemical purification in nuclear forensics relevant samples. Fission products can impact accurate gamma spectroscopy analysis. Removal of the 132Te fission product can be accomplished via deposition on a Ag disk. The purpose of this work is to determine the concentration of Ag that begins to quench the phosphorescent signal as part of sample purification scheme for U and the necessary steps for successful sample analysis via gamma spectroscopy and KPA.
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Acknowledgements
This work was sponsored by the Office of the Deputy Assistant Secretary of Defense for Nuclear Matters. PNNL is operated by Battelle for the U.S. Department of Energy (DOE) under Contract No. DE-AC05-76RL0-1830. PNNL draws on signature capabilities in chemistry, earth sciences, and data analytics to advance scientific discovery and create solutions to the nation’s toughest challenges in energy resiliency and national security.
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Arnold, E., Uhnak, N., Schroeder, J. et al. The impact of silver on uranium quantification by kinetic phosphorescence analysis. J Radioanal Nucl Chem 331, 5167–5172 (2022). https://doi.org/10.1007/s10967-022-08574-w
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DOI: https://doi.org/10.1007/s10967-022-08574-w