A radioactive tracer dilution method to determine the mass of molten salt
A new technique for molten salt mass determination, termed radioactive tracer dilution, that uses 22Na as a tracer was validated at bench scale. It has been a challenging problem to determine the mass of molten salt in irregularly shaped containers, where a highly radioactive, high-temperature molten salt was used to process nuclear spent/used fuel during electrochemical recycling (pyro-processing) or for coolant/fuel salt from molten salt reactors. A radioactive source with known activity is dissolved into the salt. After a complete mixture, a small amount of the salt is sampled and measured in terms of its mass and radioactivity. By finding the ratio of the mass to radioactivity, the unknown salt mass in the original container can be precisely determined.
KeywordsRadioactive tracer Molten salt Mass determination Volume Pyro-processing Molten salt reactor
We would like to thank the financial support from Laboratory Directed Research & Development from U.S. Department of Energy Idaho National Laboratory.
- 1.Benedict RW, Solbrig C, Westphal B, Johnson TA, Li SX, Marsden K, Goff KM (2007) Pyroprocessing Progress at Idaho National Laboratory. In: Proceedings of GLOBAL 2007Google Scholar
- 2.Benedict RW, Yacout AM, Vaden D, Goff KM, Keyes RW (1996) Material accountancy in an electrometallurgical fuel conditioning facility. https://www.researchgate.net/publication/255036958. Accessed 31 May 2017
- 3.Yacout AM, Bucher RG, Orechwa Y (1996) Fuel Conditioning facility material accountancy. https://www.osti.gov/scitech/servlets/purl/97161. Accessed 31 May 2017
- 4.Orechwa Y, Bucher RG (1996) Fuel conditioning facility electrorefiner special nuclear material mass estimation. In: American nuclear society topical meeting on DOE spent nuclear fuel and fissile materials managementGoogle Scholar
- 6.McKnight RD, Yacout AM, Vaden D, Krsul J, Westphal B (1999) Nuclear material estimation and uncertainties for the spent fuel treatment at FCF. www.iaea.org/inis/collection/NCLCollectionStore/_Public/32/065/32065047.pdf. Accessed 31 May 2017
- 8.Vaden DE, Goff KM, Mariani RD, Bonomo NL, Cunningham SS (1996) Fuel conditioning facility electrorefiner start-up results. https://inis.iaea.org/search/search.aspx?orig_q=RN:27061558. Accessed 10 May 2017
- 10.Yacout AM, Bucher RG, Orechwa Y (1996) Fuel conditioning facility material accountancy. https://www.osti.gov/scitech/servlets/purl/97161. Accessed 31 May 2017