Use of International Criticality Safety Benchmark Evaluation Project Benchmarks for the Validation of CSAS26 (Scale 4.4a) for Configurations of Low-Enriched Uranium
| Autor: | Guillermo Sánchez, Carolina Álvaro, Óscar Zurrón |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Scale (ratio)
010308 nuclear & particles physics Computer science Nuclear engineering Nuclear criticality safety Uranium dioxide 0211 other engineering and technologies 02 engineering and technology Enriched uranium 01 natural sciences chemistry.chemical_compound Nuclear Energy and Engineering Criticality chemistry Benchmark (surveying) 0103 physical sciences Personal computer Uranium-235 021108 energy |
| Zdroj: | Nuclear Science and Engineering. 145:153-159 |
| ISSN: | 1943-748X 0029-5639 |
| DOI: | 10.13182/nse03-a2371 |
| Popis: | As an example ofthe application ofthe lntemational Criticality Safety Benchmark Evaluation Project (ICSBEP) work to the nuclear industry, the validation of the control module CSAS26 of SCALE 4.4a for criticality calculations on a personal computer platform is presented. This work has been done using the models of critical experiments being compiled by the Organisation for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA) since 1992. The description and results of this compilation were first presented during the Fifth lntemational Conference on Nuclear Criticality Safety (ICNC'95). Out of 2881 critical configurations included in the latest edition (September 2002) of the ICSBEP "lntemational Handbook of Evaluated Criticality Safety Benchmark Experiments." NEA/NSC/ DOC(95)03, OECD/NEA, 131 have been selectedfor the CSAS26 validation. The selected critical exper- iments have characteristics similar to the systems to be simulated with CSAS26 for low-enriched uranium (LEU) fuel fabrication applications. They represent both homogeneous configurations and hexagonally pitched rod lattices of low-enriched (from 1.60 to 5.00 wt% 235U) U02 with several absorbers. The statistical uncertainties related to the application of CSAS26 for criticality calculations are also evalu- ated. The great number of cases involved allows an exhaustive statistical treatment of the data, including the analysis of correlations related to the type of system being simulated. The statistical uncertainties found are very small. As a result, the module CSAS26 is considered as a quite suitable calculational method for application to criticality safety analysis at LEU facilities. |
| Databáze: | OpenAIRE |
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