Radiation Therapy

Working as a Radiation Therapist

Radiologists and radiation oncologists often prescribe radiation therapy for patients who have cancer or other serious diseases. As a radiation therapist, you'll be part of the team that helps plans and administers these treatments, and monitors patients' conditions. You'll use special equipment that produces ionizing radiation to administer therapeutic doses of radiation.

Part of your job may also be to provide support to nervous patients. Dealing with a serious disease is usually a challenging and frightening experience. Having a skilled and caring radiation therapist can often make a great deal of difference.

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The purpose of ARRT certification and registration in Radiation Therapy is to recognize individuals who are qualified to perform the role of a radiation therapist. To earn ARRT certification and registration in this discipline, you'll use our primary eligibility pathway. Whether you're a student, looking for educational programs, or just beginning to explore career options, below are the resources you'll need to get started.

Requirements Checklist


Earning ARRT certification and registration is challenging, yet very achievable. It will take time and commitment—but your hard work will pay off.  Learn more about the requirements you'll need to meet along the way, including those in education, ethics, and examination. 

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Didactic and Clinical Competency Requirements explain the coursework and clinical procedures that you'll need to complete.

  • Didactic and Clinical Competency Requirements

    Examination Content Specifications outline the topics that appear on our Radiation Therapy exams.

  • Examination Content Specifications

    Task Inventory lists the job responsibilities typically required of technologists working in radiation therapy.

  • Task Inventory

  • 2020 Primary Eligibility Pathway Handbook Cover


    The application process for ARRT certification and registration has many detailed steps—but don't worry. We have a range of resources to guide you. Start by reviewing an overview of the application process and downloading our primary eligibility pathway application handbook below. 

    Download Handbook


    If you have questions about eligibility, our requirements, or applying, we're here to help. Contact us at 651.687.0048, then choose the option for earning an ARRT credential.