Modeling Enhancements and Demonstration of Shift Capabilities for PBRs and MSRs

Tara Pandya, Tarek Ghaddar, Friederike Bostelmann, Matthew Jessee, Philip Britt

Research output: Book/ReportCommissioned report

Abstract

This technical report documents the modeling enhancements and demonstrations with the Shift Monte Carlo (MC) code targeted at pebble-bed reactors (PBRs) and molten salt reactors (MSRs) under the US Department of Energy (DOE) Nuclear Energy Advanced Modeling and Simulation (NEAMS) program in fiscal year (FY) 2023. The work performed included several enhancements, such as improvements for multigroup cross section generation, a new eigenvalue mode considering only prompt fission neutrons, and enhancements to the Titan frontend for Shift to allow for new geometry types and tally functionality. Additionally, new PBR equilibrium core search reference calculations were generated with Shift and compared to Serpent calculations provided by Idaho National Laboratory (INL). These enhancements provide a robust foundation for applying Shift for both reference and two-step neutronics analysis for advanced reactor simulation.
Original languageEnglish
Place of PublicationUnited States
DOIs
StatePublished - 2023

Keywords

  • 22 GENERAL STUDIES OF NUCLEAR REACTORS

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