Medical Dosimetry

New students are admitted to the Medical Dosimetry program every other year.  The next class will begin in Fall 2018. The Medical Dosimetry Program only accepts Certified Radiation Therapists: R.T.(T) (ARRT).  There are no exceptions. 


The medical dosimetrist is a member of the radiation oncology team that plays a role in the management of cancer. Medical dosimetrists specialize in the planning of optimal radiation treatment techniques and dose calculations in collaboration with the medical physicist and radiation oncologist. Medical dosimetry professionals use their knowledge of physics, anatomy, and radiobiology to develop an optimal arrangement of radiation portals to spare normal and radiosensitive tissues while applying a prescribed dose to the targeted disease volume.

The Medical Dosimetry program is a full-time program. To accommodate the working professional and out of region students, courses are taught in the evenings and are enhanced through recordings and transmitted through web conferencing to accommodate students beyond commuting distance. Beginning Winter quarter, students must be available twenty-four hours per week to participate in clinical internship.

The college will provide clinical internship sites for admitted students within Washington State. Non-resident applicants who expect to participate in their clinical internship in another state must provide proof of a clinical preceptor and internship site.

This program was funded by a grant awarded under the President’s Community-Based Job Training Grants, as implemented by the U.S. Department of Labor’s Employment & Training Administration. Bellevue College is an equal opportunity institution. Auxiliary aids and services are available upon request to individuals with disabilities.

Medical Dosimetry Paths and Requirements

Depending on your educational background and interests, two paths are available for students who want to prepare for the American Association of Medical Dosimetry certification examination:

Bachelor of Applied Sciences (BAS) Degree in Radiation & Imaging Sciences, Medical Dosimetry Concentration

If you have a current national certification in radiation therapy but do not have a bachelor’s degree, you can complete the Bachelor of Applied Science degree with a Medical Dosimetry concentration.

Certificate of Achievement in Medical Dosimetry

This twenty-two month certificate program is intended for those who already have a bachelor’s degree, plus current national certification in radiation therapy.

Note: Not all courses are offered each quarter, so it is important to discuss your specific advising plan with a program advisor. Download the worksheets to see the degree and certificate requirements and course list.

Eligibility for Medical Dosimetry

In addition to the general eligibility criteria outlined on this site, to be eligible for the Medical Dosimetry certificate or degree concentration, you must hold current national certification in radiation therapy. In addition, you must submit an official transcript demonstrating completion of the prerequisite requirements with a grade of 2.5 or better from a regionally accredited college.

Application Instructions

Due to the highly competitive and strict guidelines in the Medical Dosimetry concentration, special application instructions have been provided! Please review all of the application guidelines fully prior to applying. The Medical Dosimetry concentration accepts a class every other year (fall quarter of evenly numbered academic years).

Program Accreditation

Program Effectiveness Data


Last Updated November 9, 2017