Design treatment plans with optimal beam geometry to deliver a prescribed radiation close and spare critical structures in accordance with Radiation Oncologist’s prescription. Identify and contour normal and dose-limiting structures by utilizing images from one or more data sets; create and transfer reference images and localization markers for portal verification and treatment delivery to include DRRs, CBCTs and other IGRT methods, as specified. Supervise, perform, or assist in the planning and implementation of the fabrication of compensation filters, custom shields, and simulations. Assure Compliance with Research Programs. Contribute to Education of Staff, Students, and Residents. Other duties as assigned.