Corrosion Tests of LWR Fuels - Nuclide Release

Technical Report · Fri Dec 14 00:00:00 EST 2001

DOI:https://doi.org/10.2172/805595· OSTI ID:805595

Finn, P A; Tsai, Y; Cunnane, J C

Two BWR fuels [64 and 71 (MWd)/kgU], one of which contained 2% Gd, and two PWR fuels [30 and 45 (MWd)/kgU], are tested by dripping groundwater on the fuels under oxidizing and hydrologically unsaturated conditions for times ranging from 2.4 to 8.2 yr at 90 C. The {sup 99}Tc, {sup 129}I, {sup 137}Cs, {sup 97}Mo, and {sup 90}Sr releases are presented to show the effects of long reaction times and of gadolinium on nuclide release. This investigation showed that the five nuclides at long reaction times have similar fractional release rates and that the presence of 2% Gd reduced the {sup 99}Tc cumulative release fraction by about an order of magnitude over that of a fuel with a similar burnup.

• Research Organization: Yucca Mountain Project, Las Vegas, NV (United States)
• Sponsoring Organization: US Department of Energy (US)
• OSTI ID: 805595
• Resource Relation: Other Information: PBD: 14 Dec 2001
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
PWR TYPE REACTORS
SPENT FUELS
BURNUP
CORROSION
GADOLINIUM ALLOYS
OXIDATION
HYDROLOGY
TECHNETIUM 99
IODINE 129
CESIUM 137
MOLYBDENUM 97
STRONTIUM 90
FISSION PRODUCT RELEASE
GROUND WATER
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION