Diffusion coefficient of Xe-133 in a SIMFUEL with a low burnup
Creators
- 1. Korea Atomic Energy Research Institute, 150 Ducjin, Yusung, Daijeon 350-353 (Korea, Republic of)
- 2. Department of Nuclear Engineering, Kyunghee University, Seochon-1, Kiheong, Yongin, Kyunggi 449-701 (Korea, Republic of)
Description
Post irradiation annealing tests were performed to obtain the Xe-133 diffusion coefficients in a SIMFUEL which was a simulated irradiated UO2 fuel with a burnup of 27,300 MWd/t U. Specimens were fabricated as cubic polycrystals with the same composition for a given burnup. Each 300 mg specimen was irradiated in the HANARO research reactor for up to a 0.1 MWd/t U burnup. Post irradiation annealing tests were carried out at 1400 deg. C, 1500 deg. C and 1600 deg. C. The xenon diffusion coefficients for the SIMFUEL were lower than those for UO2 in near stoichiometric UO2 due to a relatively higher concentration of the tri-valent additives, which is related to the concentration of a cation vacancy. The activation energy in the SIMFUEL was also lower than that in UO2 due to the lower formation energy of a cation vacancy and the migration energy. The xenon diffusion coefficient for the SIMFUEL increased with an increasing oxygen potential of the ambient gas
Additional details
Identifiers
- DOI
- 10.1016/j.anucene.2006.12.002;
- PII
- S0306-4549(06)00235-0;
Publishing Information
- Journal Title
- Annals of Nuclear Energy (Oxford)
- Journal Volume
- 34
- Journal Issue
- 3
- Journal Page Range
- p. 153-158
- ISSN
- 0306-4549
- CODEN
- ANENDJ
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38086160
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Descriptors DEI
- ACTIVATION ENERGY; ADDITIVES; ANNEALING; BURNUP; FORMATION HEAT; HANARO REACTOR; IRRADIATION; NUCLEAR FUELS; OXYGEN POTENTIAL; POLYCRYSTALS; URANIUM DIOXIDE; VACANCIES; XENON; XENON 133
- Descriptors DEC
- ACTINIDE COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHALCOGENIDES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; DAYS LIVING RADIOISOTOPES; ELEMENTS; ENERGY; ENERGY SOURCES; ENRICHED URANIUM REACTORS; ENTHALPY; EVEN-ODD NUCLEI; FLUIDS; FREE ENTHALPY; FUELS; GASES; HEAT TREATMENTS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IRRADIATION REACTORS; ISOMERIC TRANSITION ISOTOPES; ISOTOPE PRODUCTION REACTORS; ISOTOPES; MATERIALS; MATERIALS TESTING REACTORS; NONMETALS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; POOL TYPE REACTORS; RADIOISOTOPES; RARE GASES; REACTION HEAT; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; TEST FACILITIES; TEST REACTORS; THERMODYNAMIC PROPERTIES; URANIUM COMPOUNDS; URANIUM OXIDES; WATER COOLED REACTORS; WATER MODERATED REACTORS; XENON ISOTOPES
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.