TY - THES
T1 - Nuclear data validation using Baikal-1 Skyshine benchmark experiment of ICSBEP handbook
AU - Simanjuntak, Gabriel
A2 - Çelik, Yurdunaz
A2 - Romojaro, Pablo
N1 - Score=N/A
PY - 2024/9/18
Y1 - 2024/9/18
N2 - In this work, updated versions of nuclear data libraries—ENDF/B-VIII, JEFF-3.3, JEFF-3.1.2, JENDL-4, and TENDL-2019—were validated using the Skyshine Baikal-1 Experiment from the ICSBEP Handbook as a benchmark, with simulations performed using the MCNP and SERPENT codes. The results highlighted significant differences between JEFF-3.3 and TENDL-2019 compared to the default library, ENDF-VII.1, with discrepancies of 714 pcm and 496 pcm, respectively. The proposed method allowed the identification of integrated sensitivity coefficients of the model and revealing specific nuclear data and cross-sections responsible for the observed deviations. The validation with detector calculations showed discrepancies between results from different libraries and the experimental data. Although the modifications demonstrated improvements in the model, further investigation is needed to determine the differences between nuclear data libraries. The comparison of calculations between MCNP and SERPENT demonstrated consistent results across both neutron transport codes, with MCNP providing results with lower uncertainties.
AB - In this work, updated versions of nuclear data libraries—ENDF/B-VIII, JEFF-3.3, JEFF-3.1.2, JENDL-4, and TENDL-2019—were validated using the Skyshine Baikal-1 Experiment from the ICSBEP Handbook as a benchmark, with simulations performed using the MCNP and SERPENT codes. The results highlighted significant differences between JEFF-3.3 and TENDL-2019 compared to the default library, ENDF-VII.1, with discrepancies of 714 pcm and 496 pcm, respectively. The proposed method allowed the identification of integrated sensitivity coefficients of the model and revealing specific nuclear data and cross-sections responsible for the observed deviations. The validation with detector calculations showed discrepancies between results from different libraries and the experimental data. Although the modifications demonstrated improvements in the model, further investigation is needed to determine the differences between nuclear data libraries. The comparison of calculations between MCNP and SERPENT demonstrated consistent results across both neutron transport codes, with MCNP providing results with lower uncertainties.
KW - Nuclear data validation
KW - Skyshine
KW - Baikal-1 experiments
KW - Benchmarks
KW - MCNP
KW - SERPENT
KW - Thermal neutron flux
KW - Neutron spectra
KW - Sensitivity calculation
UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/86983997
M3 - Master's thesis
PB - Universidad Politécnica de Madrid
ER -