Real-time monitoring of uranium concentration in NaCl–MgCl2–UCl3 molten salt

Real-time monitoring of uranium concentration in molten salt reactors (MSR) is crucial for reactor operation and safety. However, conventional analytical methods cannot provide accurate results when uranium concentrations exceed approximately 4 wt%. We report an electrochemical technique based on re...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2023-12, Vol.332 (12), p.5233-5238
Main Authors: Jung, Chan-Yong, Kim, Tae-Hyeong, Bae, Sang-Eun
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Magnesium chloride
Molten salt nuclear reactors
Monitoring
Nuclear Chemistry
Nuclear fuels
Nuclear Physics
Nuclear safety
Physical Chemistry
Real time
Uranium
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Summary:Real-time monitoring of uranium concentration in molten salt reactors (MSR) is crucial for reactor operation and safety. However, conventional analytical methods cannot provide accurate results when uranium concentrations exceed approximately 4 wt%. We report an electrochemical technique based on repeating chronoamperometry (RCA) for precise and accurate measurements of uranium concentrations > 10 wt% in a NaCl–MgCl 2 –UCl 3 molten salt. Uranium concentration was measured in a molten salt containing 5–12.5 wt% of uranium chloride with high precision and a linearity close to 1. The RCA technique can be used for measuring the concentration of nuclear fuel in MSRs.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09000-5