Lattice physics calculations using the embedded self-shielding method in polaris, Part II: Benchmark assessment

Ugur Mertyurek; Matthew A. Jessee; Benjamin R. Betzler

doi:10.1016/j.anucene.2020.107829

Lattice physics calculations using the embedded self-shielding method in polaris, Part II: Benchmark assessment

Ugur Mertyurek, Matthew A. Jessee, Benjamin R. Betzler

Oak Ridge National Laboratory

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Polaris is a 2D multigroup lattice physics capability in the SCALE code system used for the analysis of light water reactor fuel designs. Verification and validation results of Polaris in SCALE 6.2 are presented. The SCALE/KENO continuous-energy Monte Carlo code is used as a reference to compare the results of more than 2,000 combinations of pressurized water reactor and boiling water reactor lattice designs and state points. Radiochemical assay measurements were also used to assess the accuracy of depletion calculations. Results show that Polaris, with ENDF/B-VII.1 cross section library, produces accurate lattice physics data for core simulators.

Original language	English
Article number	107829
Journal	Annals of Nuclear Energy
Volume	150
DOIs	https://doi.org/10.1016/j.anucene.2020.107829
State	Published - Jan 2021

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

Funding

The authors would like to thank the U.S. Nuclear Regulatory Office of Nuclear Regulatory Research, specifically Don Algama and Richard Lee for funding the development of Polaris. The authors would like to acknowledge Mark L. Williams (ORNL) and Stephen M. Bowman (ORNL) who both passed away in 2018. Mark made significant contributions to the self-shielding methodology, cross section libraries, and self-shielding tables used in Polaris. Steve was the ORNL project manager for the NRC Polaris project since its inception in 2012. This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
U.S. Nuclear Regulatory Office of Nuclear Regulatory Research
U.S. Department of Energy
U.S. Nuclear Regulatory Commission
Oak Ridge National Laboratory

Keywords

Benchmark
KENO
LWR
Lattice physics
Polaris
SCALE

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10.1016/j.anucene.2020.107829

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title = "Lattice physics calculations using the embedded self-shielding method in polaris, Part II: Benchmark assessment",

abstract = "Polaris is a 2D multigroup lattice physics capability in the SCALE code system used for the analysis of light water reactor fuel designs. Verification and validation results of Polaris in SCALE 6.2 are presented. The SCALE/KENO continuous-energy Monte Carlo code is used as a reference to compare the results of more than 2,000 combinations of pressurized water reactor and boiling water reactor lattice designs and state points. Radiochemical assay measurements were also used to assess the accuracy of depletion calculations. Results show that Polaris, with ENDF/B-VII.1 cross section library, produces accurate lattice physics data for core simulators.",

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AB - Polaris is a 2D multigroup lattice physics capability in the SCALE code system used for the analysis of light water reactor fuel designs. Verification and validation results of Polaris in SCALE 6.2 are presented. The SCALE/KENO continuous-energy Monte Carlo code is used as a reference to compare the results of more than 2,000 combinations of pressurized water reactor and boiling water reactor lattice designs and state points. Radiochemical assay measurements were also used to assess the accuracy of depletion calculations. Results show that Polaris, with ENDF/B-VII.1 cross section library, produces accurate lattice physics data for core simulators.

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ER -

Lattice physics calculations using the embedded self-shielding method in polaris, Part II: Benchmark assessment

Abstract

Bibliographical note

Funding

Keywords

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