OECD/NEA expert group on uncertainty analysis for criticality safety assessment: Results of benchmark on sensitivity calculation (phase III)

Tatiana Ivanova, Cédric Laville, James Dyrda, Dennis Mennerdahl, Yury Golovko, Kirill Raskach, Anatoly Tsiboulia, Gil Soo Lee, Sweng Woong Woo, Adrien Bidaud, Pouya Sabouri, Amrit Patel, Keith Bledsoe, Bradley Rearden, Jim Gulliford, Franco Michel-Sendis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

17 Scopus citations

Abstract

The sensitivities of the keff eigenvalue to neutron cross sections have become commonly used in similarity studies and as part of the validation algorithm for criticality safety assessments. To test calculations of the sensitivity coefficients, a benchmark study (Phase III) has been established by the OECD-NEA/WPNCS/EG UACSA (Expert Group on Uncertainty Analysis for Criticality Safety Assessment). This paper presents some sensitivity results generated by the benchmark participants using various computational tools based upon different computational methods: SCALE/TSUNAMI-3D and -1D, MONK, APOLLO2-MORET 5, DRAGON-SUSD3D and MMKKENO. The study demonstrates the performance of the tools. It also illustrates how model simplifications impact the sensitivity results and demonstrates the importance of 'implicit' (self-shielding) sensitivities. This work has been a useful step towards verification of the existing and developed sensitivity analysis methods.

Original languageEnglish
Title of host publicationInternational Conference on the Physics of Reactors 2012, PHYSOR 2012
Subtitle of host publicationAdvances in Reactor Physics
Pages2762-2780
Number of pages19
StatePublished - 2012
EventInternational Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012 - Knoxville, TN, United States
Duration: Apr 15 2012Apr 20 2012

Publication series

NameInternational Conference on the Physics of Reactors 2012, PHYSOR 2012: Advances in Reactor Physics
Volume4

Conference

ConferenceInternational Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012
Country/TerritoryUnited States
CityKnoxville, TN
Period04/15/1204/20/12

Keywords

  • Criticality
  • Deterministic
  • Implicit
  • Monte Carlo
  • Sensitivity
  • Uncertainty

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