Agentic Porting, Construction and Initial Verification and Validation of Libraries within the Open Source Unified TRAnsient Multi-Physics Advanced Reactor simulation Kit (Outram Park) Part II: Nuclear Data and Neutronics

Abstract

An agentic Rust port of both Njoy and OpenMC components was attempted to produce a convenient ENDF to Monte Carlo simulation pipeline in Outram Park. The code is still a prototype with more extensive verification and validation studies required in future studies. For initial verification work, Doppler-broadened cross sections of U-238 are demonstrated in this paper and compared to OpenMC pre-generated HDF5 files. Additionally, initial testing of the Monte Carlo ports from OpenMC were also performed with ICSBEP benchmarks and a FHR Pebble with TRISO Fuel used in the author's PhD dissertation. The addition of nuclear data and Monte Carlo case studies shifts the focus of Outram Park from a Multi-Phase simulation kit to a Multi-Physics simulation kit.