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

An agentic Rust port of both Njoy and OpenMC was achieved to produce a convenient ENDF to Monte Carlo simulation pipeline in Outram Park. The code is still a prototype with much more extensive verification and validation studies required in future studies. Doppler-broadened cross sections of U-238 are demonstrated in this paper and compared to OpenMC pregenerated 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.