RadCollision is an open-source platform designed to aid treatment planners in the choice of beam incidence angles that do not collide with the patient or couch. Currently, only the RayStation TPS is supported. It loads a 3D model of a LINAC and or couch into RayStation, that can be rotated interactively to assess collision risk. One can also load in RayStation a 3D scan of the patient done e.g. with a smartphone, if full patient geometry is needed. The (only available) interface layer is written in the native IronPython scripting language of the RayStation interface. Find out more or download project on the RadCollision github page.