Radiation Safety Training for Sealed Source Use Online

2 hour
Course mode: 
Self-paced online

Intended audience

This course is required for University personnel who use only sealed sources of radioactive material.


This course teaches radiological fundamentals, regulations and oversight, biological effects of radiation, and the safe use of sealed sources at the University of Washington. This training focuses on exposure control, ALARA (as low as reasonably achievable) concepts, utilizing time, distance, and shielding to reduce external dose, and University of Washington specific policies for ordering and disposing of sealed sources.

This training does not fulfill training requirements for persons who use open (unsealed) sources of radioactivity or high activity gamma irradiators. To become a Radiation Worker on a sealed source Radiation Use Authorization (RUA), contact EH&S Radiation Safety at radsaf@uw.edu to begin this process.

Regulations and resources

WAC 246-222-030

Radiation Safety Manual

Radiation Use Authorization

Accommodations and language services

The University of Washington is committed to providing access, equal opportunity, and reasonable accommodations to individuals who need them.

  • To request a disability accommodation, please contact the UW Disability Services Office at 206-543-6450 (V), 206-543-6452(TTY), or email at dso@uw.edu.
  • To request safety training in a language other than English, please contact EH&S training at ehstrain@uw.edu and notify your supervisor. EH&S will work with you and your supervisor to arrange for interpretation or translation services.
  • For other accommodation requests, please contact EH&S Training at ehstrain@uw.edu


EH&S Training Contact

(206) 543-7201