Fission gas release from ThO2 and ThO2--UO2 fuels (LWBR development program)
Description
Fission gas release data are presented from 51 fuel rods irradiated as part of the LWBR irradiations test program. The fuel rods were Zircaloy-4 clad and contained ThO2 or ThO2-UO2 fuel pellets, with UO2 compositions ranging from 2.0 to 24.7 weight percent and fuel densities ranging from 77.8 to 98.7 percent of theoretical. Rod diameters ranged from 0.25 to 0.71 inches and fuel active lengths ranged from 3 to 84 inches. Peak linear power outputs ranged from 2 to 22 kw/ft for peak fuel burnups up to 56,000 MWD/MTM. Measured fission gas release was quite low, ranging from 0.1 to 5.2 percent. Fission gas release was higher at higher temperature and burnup and was lower at higher initial fuel density. No sensitivity to UO2 composition was evidenced
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A03/MF A01.
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Additional details
Publishing Information
- Imprint Pagination
- 38 p.
- Report number
- WAPD-TM--1350
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 10449657
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
- Descriptors DEI
- CHEMICAL RADIATION EFFECTS; FISSION PRODUCT RELEASE; FUEL RODS; LWBR TYPE REACTORS; PERFORMANCE TESTING; THORIUM OXIDES; URANIUM DIOXIDE
- Descriptors DEC
- ACTINIDE COMPOUNDS; BREEDER REACTORS; CHALCOGENIDES; FUEL ELEMENTS; OXIDES; OXYGEN COMPOUNDS; RADIATION EFFECTS; REACTOR COMPONENTS; REACTORS; TESTING; THERMAL REACTORS; THORIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES; WATER COOLED REACTORS; WATER MODERATED REACTORS