Radiation oncology is a branch of medicine that uses ionizing radiation to treat cancer. This form of therapy is commonly used to destroy cancer cells and shrink tumors, either alone or in combination with other treatment modalities such as surgery and chemotherapy. Radiation oncologists work closely with other medical professionals to develop a treatment plan tailored to each individual patient, taking into account factors such as the type and stage of cancer, the patient's overall health, and treatment goals. The ultimate aim of radiation oncology is to help patients achieve the best possible outcomes in terms of cancer control and quality of life.