PHITS simulation data for Cold moderator Optimization

This dataset was collected for the design of a dedicated low-frequency target station for neutron-scattering experiments under very high pulsed magnetic fields. The dataset contains simulations for three Target–Moderator–Reflector (TMR) geometries, namely Flat, Framed Flat, and Inverted, using the European Spallation Source (ESS) 2 GeV proton beam. The data focuses on moderator cross-section optimization. All PHITS input files are included for each geometry. All post-processed files are provided in pickle (.pkl) format and are fully readable with Python.