Attention ** Sign up for TOPAS Announcements Email List** Get updates on user meetings, code releases, and more. For more, see https://github.com/OpenTOPAS/OpenTOPAS/discussions/185 Optical# OpticalMaterialSample.txt OpticalPhotonCount.txt PixelatedDetector.txt PlasticScintillator.txt Rotating_Surfaces.txt Surfaces.txt WavelengthShifter.txt