Development of a new 47-group library for the CASL neutronics simulators

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9 Scopus citations

Abstract

The MPACT neutronics module of the Consortium for Advanced Simulation of Light Water Reactors (CASL) core simulator is a 3-D whole core transport code being developed for the CASL toolset, Virtual Environment for Reactor Analysis (VERA). MPACT is under development for neutronics and thermal-hydraulics coupled simulation for pressurized light water reactors. Key characteristics of the MPACT code include (1) a subgroup method for resonance self-shielding and (2) a whole core solver with a 1-D / 2-D synthesis method. Oak Ridge National Laboratory (ORNL) AMPX/SCALE code packages have been significantly improved to support various intermediate resonance self-shielding approximations such as subgroup and embedded self-shielding methods. New 47-group AMPX and MPACT libraries, which are based on ENDF/B-VII.O, have been generated for the CASL neutronics module MPACT. The MPACT group structure comes from the HELIOS library. This new 47-group MPACT library includes all nuclear data required for static and transient core simulations. This study discusses a detailed procedure to generate 47-group AMPX and MPACT libraries and benchmark results for VERA progression problems.

Original languageEnglish
Title of host publicationMathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015
PublisherAmerican Nuclear Society
Pages1875-1887
Number of pages13
ISBN (Electronic)9781510808041
StatePublished - 2015
EventMathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015 - Nashville, United States
Duration: Apr 19 2015Apr 23 2015

Publication series

NameMathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015
Volume3

Conference

ConferenceMathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015
Country/TerritoryUnited States
CityNashville
Period04/19/1504/23/15

Keywords

  • 47-group
  • CASL
  • MPACT
  • Neutronics
  • Self-shielding

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