Validation of UNIST Monte Carlo code MCS for criticality safety calculations with burnup credit through MOX criticality benchmark problems

Autor: Duy Long Ta, Ser Gi Hong, Deokjung Lee
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Nuclear Engineering and Technology, Vol 53, Iss 1, Pp 19-29 (2021)
Druh dokumentu: article
ISSN: 1738-5733
DOI: 10.1016/j.net.2020.06.016
Popis: This paper presents the validation of the MCS code for critical safety analysis with burnup credit for the spent fuel casks. The validation process in this work considers five critical benchmark problem sets, which consist of total 80 critical experiments having MOX fuels from the International Criticality Safety Benchmark Evaluation Project (ICSBEP). The similarity analysis with the use of sensitivity and uncertainty tool TSUNAMI in SCALE was used to determine the applicable benchmark experiments corresponding to each spent fuel cask model and then the Upper Safety Limits (USLs) except for the isotopic validation were evaluated following the guidance from NUREG/CR-6698. The validation process in this work was also performed with the MCNP6 for comparison with the results using MCS calculations. The results of this work showed the consistence between MCS and MCNP6 for the MOX fueled criticality benchmarks, thus proving the reliability of the MCS calculations.
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