The Medical Physicist is responsible for quality assurance of linear accelerators, tomotherapy, CT simulators, and other treatment and imaging devices. The role performs patient-specific calculations and quality assurance for treatment plans, evaluates plans for safe and effective treatment, and assesses CT image quality. It also develops and implements new clinical treatment modalities and equipment, and plans, performs quality assurance for, and assists with brachytherapy treatments. The position supports safe and accurate therapeutic procedures, radiation safety, regulatory compliance, and timely treatment delivery.