Work

Generation and validation of a new WIMS-D library based on ENDF/B-VIII.0

Year: 2024

Type: article

Abstract: The WIMSD5b transport code is a deterministic tool for nuclear reactor core design and fuel management. It can efficiently handle pin-cell models and calculate homogenized cross sections, which are essential for reactor physics calculations. The WLUP update project https://www-nds.iaea.org/wimsd demonstrated the way to update the WIMS-D libraries with different evaluated nuclear data libraries, including ENDF libraries up to version ENDF/B-VII.1. Using an updated version of the procedure, a new WIMS-D library based on the ENDF/B-VIII.0 data was developed to improve the accuracy of core design calculations. Several improvements to the library were made and the effects of each individual improvement was demonstrated using a 3x3 supercell benchmark model that is representative of a typical pressurized water reactor. Finally, the performance of the library over a diverse set of neutron transport problems was tested for, to ensure no regressions were introduced.

Source: Annals of Nuclear Energy

DOI: 10.1016/j.anucene.2024.110989

Authors: Jan Malec, Oscar Cabellos, Marjan Kromar, Andrej Trkov

Institutions: University of Ljubljana, Jožef Stefan Institute, Universidad Politécnica de Madrid

Language: English

Topic: Nuclear reactor physics and engineering

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,690

Funder: Javna Agencija za Raziskovalno Dejavnost RS