Use of UO/sub 2/-Gd/sub 2/O/sub 3/ in very low leakage, extended burnup fuel cycles
The US Department of Energy, Duke Power Company, and Babcock and Wilcox Company are participating in an extended burnup program for pressurized water reactors. Under this program, an advanced fuel assembly has been designed and is being tested for batch-average discharge burnups >50,000 MWd/MTU. One feature of this advanced fuel assembly that improves its economic potential is the use of UO/sub 2/-Gd/sub 2/O/sub 3/ (urania-gadolinia) as a fuel burnable absorber mixture. Previous milestones in the gadolinia development of the extended burnup program include: development and verification of a neutronics model, measurement of materials properties of gadolinia fuel, and successful irradiation of gasolinia lead test assemblies (LTAs) for the first one-and-a-half cycles of a planned four-cycle residence. Another phase of the gadolinia development effort is a study of full-batch implementation of gadolinia in very low leakage, extended burnup fuel cycles. This paper presents results from this phase. Gadolinia has been shown to be a feasible alternative to B/sub 4/C LBP clusters in very low leakage extended burnup fuel cycles.
- Research Organization:
- Babcock and Wilcox Co.
- OSTI ID:
- 5549816
- Report Number(s):
- CONF-851115-; TRN: 86-020254
- Journal Information:
- Trans. Am. Nucl. Soc.; (United States), Vol. 50; Conference: American Nuclear Society winter meeting, San Francisco, CA, USA, 10 Nov 1985
- Country of Publication:
- United States
- Language:
- English
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URANIUM 235
URANIUM DIOXIDE
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ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
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OXYGEN COMPOUNDS
RADIOISOTOPES
RARE EARTH COMPOUNDS
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