Z-Scanner: Geant4 Monte Carlo Dataset for Dual-Parameter Proton Tomography (BL4S 2026)

This dataset contains high-fidelity Geant4 Monte Carlo simulation data generated for the Z-Scanner proposal (CERN Beamline for Schools 2026). The project investigates "Dual-Parameter Proton Tomography via Range–Scattering Correlation," specifically aiming to distinguish materials with identical density but distinct nuclear composition (PVC and Delrin) using Multiple Coulomb Scattering (MCS). The simulation models the CERN PS T9 beamline environment with a 0.7 GeV/c proton beam interacting with a custom PMMA phantom containing inserts of PVC, Delrin, Aluminum, and PMMA (Reference). (Note: 'Unknown' in the dataset corresponds to particles passing through air or scattering out of the phantom geometry).