While you can become a radiation therapist with only an associates degree, many employers prefer their therapists to have a … Students who finish these steps are eligible for taking an examination to become a certified practitioner in this field. Many people might consider the path to become a radiation oncologist a long one. How To Become a Radiation Oncologist Becoming A Radiation Oncologist. Requirements. Skills required.
Roles and Responsibilities. An associates degree takes two years to complete, and a Bachelor of Science in Radiation Therapy takes four years to complete. It requires finishing high school, a four-year undergraduate degree, four years of medical school, a post-graduate clinical year, and a four-year residency training program in radiation oncology.