Provide radiation therapy to patients as prescribed by a radiation oncologist according to established practices and standards. Duties may include reviewing prescription and diagnosis; acting as liaison with physician and supportive care personnel; preparing equipment, such as immobilization, treatment, and protection devices; and maintaining records, reports, and files. May assist in dosimetry procedures and tumor localization. devices; and maintaining records, reports, and files. May assist in dosimetry procedures and tumor localization. Ensures optimal radiation treatment course through proper planning and implementation of radiation therapy processes, including interpretation, analysis and coordination of optimal radiation therapy for each patient.