Radiation Safety Training for Sealed Source Use - Online

2 hour
Prior to working with radioactive materials or recommended by EH&S Radiation Safety
Course mode: 

The radioactive sealed source training is required for all new users of radioactive sealed sources at UW. Sealed and plated sources consist of radioactive material that is either encased in metal or plastic (sealed sources) or radioactive material that has been plated as a thin film onto metal or plastic (plated sources).

The training consists of four modules. The first three teach radiological fundamentals, regulations and oversight, and biological effects of radiation. The fourth module focuses on 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 UW 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.

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
Intended Audience 

Personnel who use only sealed sources of radioactive material


EH&S Training Contact

(206) 543-7201