Diagnosis of the unresolved domain treatment in Monte Carlo transport calculations through the identification and modelling of criticality safety experiments

García Herranz, Nuria and Rodríguez Onaindia, Jon and Jiménez-Carrascosa, Antonio and Cabellos de Francisco, Oscar Luis (2021). Diagnosis of the unresolved domain treatment in Monte Carlo transport calculations through the identification and modelling of criticality safety experiments. "EPJ Web of Conferences", v. 247 ; pp. 1-8. ISSN 2100-014X. https://doi.org/10.1051/epjconf/202124710003.

Description

Title: Diagnosis of the unresolved domain treatment in Monte Carlo transport calculations through the identification and modelling of criticality safety experiments
Author/s:
  • García Herranz, Nuria
  • Rodríguez Onaindia, Jon
  • Jiménez-Carrascosa, Antonio
  • Cabellos de Francisco, Oscar Luis
Item Type: Article
Título de Revista/Publicación: EPJ Web of Conferences
Date: February 2021
ISSN: 2100-014X
Volume: 247
Subjects:
Freetext Keywords: unresolved resonance region; probability tables; nuclear data processing; AMPX-processed continuous-energy libraries
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Monte Carlo neutron transport codes can be used for high-fidelity predictions of the performance of nuclear systems. However, validation against experiments is required in order to establish the credibility in the results and identify the inaccuracies due to the used calculation scheme and associated databases. The International Handbook of Evaluated Criticality Safety Benchmark Experiments (ICSBEP) contains criticality safety benchmarks derived from experiments that have been performed at various nuclear critical facilities around the world and are very valuable for validation purposes. The main objective of this work is the identification and modelling of experimental benchmarks included at ICSBEP in support of the validation of Monte Carlo neutron transport calculations when applied to fast systems, and in particular, KENO-VI and associated AMPX-formatted continuous-energy libraries from SCALE package. In such systems, the predicted k-eff values can be very sensitive to the treatment of nuclear data in the Unresolved Resonance Region (URR). Consequently, benchmarks with intermediate and fast spectra are identified and modelled with KENO-VI. Then, calculated results with and without probability tables in the URR are compared with each other in order to identify the most sensitive configurations to the URR. As a result of the proposed study, recommendations are given about the benchmarks that should be modelled and analysed to qualify the processed continuous-energy libraries before their use in Monte Carlo transport codes for practical fast reactor applications.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020754501ESFR-SMARTPaul Scherrer InstitutEuropean Sodium Fast Reactor Safety Measures Assessment and Research Tools

More information

Item ID: 66227
DC Identifier: http://oa.upm.es/66227/
OAI Identifier: oai:oa.upm.es:66227
DOI: 10.1051/epjconf/202124710003
Official URL: https://www.epj-conferences.org/articles/epjconf/abs/2021/01/epjconf_physor2020_10003/epjconf_physor2020_10003.html
Deposited by: Memoria Investigacion
Deposited on: 15 Mar 2021 15:02
Last Modified: 15 Mar 2021 15:02
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