Performance Portable Monte Carlo Particle Transport on Intel, NVIDIA, and AMD GPUsJohn Tramm, Paul Romano, Patrick Shriwise, Amanda Lund, Johannes Doerfert, Patrick Steinbrecher, Andrew Siegel and Gavin RidleyEPJ Web Conf., 302 (2024) 04010DOI: https://doi.org/10.1051/epjconf/202430204010