Corrosion Tests of LWR Fuels - Nuclide Release

Technical Report · Fri Dec 14 04:00:00 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, Nevada (US)
• Sponsoring Organization: US Department of Energy (US)
• OSTI ID: 805595
• Country of Publication: United States
• Language: English

Related Subjects

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