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Assessment of Uranium Isotope Impacts

Technical Report ·
DOI:https://doi.org/10.2172/3006050· OSTI ID:3006050
 [1];  [1];  [1];  [2];  [2]
  1. Argonne National Laboratory (ANL), Argonne, IL (United States)
  2. Brookhaven National Laboratory (BNL), Upton, NY (United States)
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This report examines the benefits and challenges associated with recycling recovered uranium (RU) from the used nuclear fuel (UNF) discharged from a once-through sodium-cooled fast reactor (SFR) with high-assay low-enriched uranium (HALEU) which has a higher residual U-235 content in the RU. However, there are three minor uranium isotopes that influence the value of the RU. There will be trace quantities of U-232 in RU, which can increase dose rates and, in turn, increase the cost of fuel fabrication. Additionally, the U-234 and U-236 isotopes are found in higher concentration in RU than in NU, and act as neutron poisons, requiring higher U-235 concentrations to compensate for the neutron poisoning effects of these isotopes.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
3006050
Report Number(s):
ANL/NSE--25-53; 201111
Country of Publication:
United States
Language:
English

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Related Subjects

07 ISOTOPE AND RADIATION SOURCES