Publication details

Benchmarking of stainless steel cube neutron leakage in Research Center Rez

Authors

KOŠŤÁL Michal MATĚJ Zdeněk SCHULC Martin LOSA Evžen ŠIMON Jan NOVÁK Evžen CVACHOVEC František PŘENOSIL Václav MRAVEC Filip CZAKOJ Tomáš RYPAR Vojtěch TRKOV Andrej CAPOTE Roberto

Year of publication 2024
Type Article in Periodical
Magazine / Source NUCLEAR SCIENCE AND ENGINEERING
MU Faculty or unit

Faculty of Informatics

Citation
web https://www.tandfonline.com/doi/full/10.1080/00295639.2023.2206770
Doi http://dx.doi.org/10.1080/00295639.2023.2206770
Keywords Neutron spectrometryneutron transport in steelactivation detectors in steelMCNP6
Description Integral experiments covering neutron leakage from geometrically simple assemblies with a Cf-252 source inside are very valuable tools usable in the validation of transport cross-section data since geometric uncertainties play a much smaller role in simple geometric assemblies than in complex assemblies as for example reactor pressure vessel geometry. Since Cf-252 spontaneous fission is a standard neutron source, the uncertainties connected with the source neutron spectrum can be even neglected. The paper refers to validation efforts of neutron leakage from an similar to 50 x 50 x 50-cm stainless steel block in the Research Center Rez. Both the neutron leakage flux at a distance of 1 m from the center of the cubical assembly using stilbene spectrometry and activation rates at different positions of the assembly were evaluated. In addition to experiments, main sources of uncertainty were identified and evaluated. The results of the stilbene measurements are consistent with the activation measurement results.
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