Open-source toolkit for radiation therapy research, an extension of 3D Slicer. Features include DICOM-RT import/export, dose volume histogram, dose accumulation, external beam planning (TPS), structure comparison and morphology, isodose line/surface generation, etc.
Data to test https://github.com/SlicerRt/SlicerRtData/tree/master/xio-4.64-phantom-prostate-beams-imrt