Stefano Castro Tognini Research Scientist Contact 865.341.0453 | TOGNINIS@ORNL.GOV All Publications Metal-Latticed Collimators for Radiation Portal Monitors Celeritas midterm SciDAC report Radiation Source Localization Algorithm in the Pedestrian Radiation Portal Monitor Simulation Framework for Cosmic Ray Muon Impact on Radiation Portal Monitors Celeritas: Accelerating Geant4 with GPUs... Celeritas R&D Report: Accelerating Geant4 Using Cosmic Ray Muons to Assess Geological Characteristics in the Subsurface Novel features and GPU performance analysis for EM particle transport in the Celeritas code Seasonal variation of multiple-muon cosmic ray air showers observed in the NOvA detector on the surface Key Links Organizations Computing and Computational Sciences Directorate Computational Sciences and Engineering Division Advanced Computing Methods for Engineered Systems Section Scalable Engineering Applications Group