The measurement of diffusion coefficient of fission gas in (Th,U)O2
Creators
- 1. Kyunghee University, Yongin (Korea, Republic of)
- 2. KAERI, Taejon (Korea, Republic of)
- 3. Suwon University (Korea, Republic of)
Description
Post irradiation annealing tests were performed to obtain the Xe-133 diffusion coefficients in uranium dioxide (UO2) and mixed thorium-uranium dioxide [(Th,U)O2] fuels. Specimens were a single-grained UO2, a polycrystalline UO2, and a polycrystalline (Th,U)O2. The (Th,U)O2 specimen was a mixture of 35% ThO2 and 65% UO2. Each 300mg specimen was irradiated to a burnup of 0.1 MWd/t-U. Post irradiation annealing tests were performed at 1400 .deg. C, 1500 .deg. C and 1600 .deg. C, continuously. The xenon diffusion coefficients for the near stoichiometric single-grained UO2 agree well with the data of others. The xenon diffusion coefficients in the polycrystalline (Th,U)O2 are about one order lower than those in the polycrystalline UO2. The xenon diffusion coefficient in the (Th,U)O2 increases with the increasing oxygen potential of the ambient gas
Additional details
Publishing Information
- Publisher
- KNS
- Imprint Place
- Taejon (Korea, Republic of)
- Imprint Title
- Proceedings of the KNS autumn meeting
- Imprint Pagination
- [CD-ROM]
- Journal Page Range
- [11 p.]
Conference
- Title
- 2003 spring meeting of the KNS
- Dates
- 29-30 May 2003
- Place
- Gyeongju (Korea, Republic of)
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 35063962
- Subject category
- S36: MATERIALS SCIENCE; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- ANNEALING; BURNUP; DIFFUSION; OXYGEN; THORIUM OXIDES; URANIUM DIOXIDE; XENON 133
- Descriptors DEC
- ACTINIDE COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHALCOGENIDES; DAYS LIVING RADIOISOTOPES; ELEMENTS; EVEN-ODD NUCLEI; HEAT TREATMENTS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NONMETALS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; RADIOISOTOPES; THORIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES; XENON ISOTOPES
Optional Information
- Notes
- 24 refs, 6 figs, 2 tabs