Evaluation of prediction accuracy for 238U doppler effect measured in FCA LWR simulating cores. Analysis with JENDL-3.3 library and SRAC system (Joint research)
Creators
- 1. Engineering Development Co., Ltd., Yokohama, Kanagawa (Japan)
- 2. Japan Atomic Energy Agency, Nuclear Science and Engineering Directorate, Tokai, Ibaraki (Japan)
- 3. Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)
Description
Analysis was performed to evaluate prediction accuracy of a neutronics code system for thermal reactor; the SRAC system with the use of the latest nuclear data library JENDL-3.3 for the 238U Doppler effect measured in a uranium fueled core FCA-XXI-1D2 and MOX fueled three cores FCA-XXII-1 series, where neutron spectra were varied. The results of the analysis with the diffusion theory on the Doppler effect from 20degC to 800degC showed overestimation by up to +11% for various samples. In relatively soft neutron spectra, however, the calculated values agreed with the experimental ones within the experimental errors. (author)
Availability note (English)
Available from JAEA; DOI: https://doi.org/10.11484/jaea-research-2006-008
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Additional details
Identifiers
Publishing Information
- Imprint Pagination
- 45 p.
- Report number
- JAEA-Research--2006-008
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 37101515
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- ACCURACY; COMPARATIVE EVALUATIONS; DOPPLER EFFECT; FCA REACTOR; FORECASTING; MIXED OXIDE FUELS; MOCKUP; NEUTRON DIFFUSION EQUATION; NEUTRON SPECTRA; POLYSTYRENE; REACTIVITY WORTHS; URANIUM 238; URANIUM OXIDES; WATER MODERATED REACTORS
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CHALCOGENIDES; DIFFERENTIAL EQUATIONS; DIFFUSION EQUATIONS; ENERGY SOURCES; EPITHERMAL REACTORS; EQUATIONS; EVALUATION; EVEN-EVEN NUCLEI; EXPERIMENTAL REACTORS; FAST REACTORS; FUELS; HEAVY NUCLEI; ISOTOPES; MATERIALS; NUCLEAR FUELS; NUCLEI; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXIDES; OXYGEN COMPOUNDS; PARTIAL DIFFERENTIAL EQUATIONS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYMERS; POLYOLEFINS; POLYVINYLS; RADIOISOTOPES; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; SOLID FUELS; SPECTRA; SPONTANEOUS FISSION RADIOISOTOPES; STRUCTURAL MODELS; SYNTHETIC MATERIALS; URANIUM COMPOUNDS; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; ZERO POWER REACTORS
Optional Information
- Notes
- 9 refs., 27 figs., 6 tabs.