Good Science in Plain Language

Leak Testing of Sealed Sources

leak-testingIf you use sealed radiation sources with activities greater than 50 MBq, you are required by law to test annually to verify that the sources are not leaking radioactive material.

Our leak testing service covers most gamma, beta and alpha sources and meets the Canadian Nuclear Safety Commission (CNSC) Regulatory Expectations for Leak Testing of Sealed Sources.

Our National Laboratory can test for the radioisotopes in the table below.


Alpha Sources Beta Sources Gamma Sources
ALL Cl-36 Mn-54
Ni-63 Co-60
Sr-90 Co-57
Yr-90 Ba-133
Tc-99 Cs-137/Ba-137m
I-129 Cd-109





New! Study Radiation Safety Online.

Questions about Radiation?

Free Radiation Safety Inquiry Service answering questions about radiation.



Why Radiation Protection Makes Sense at Low Exposure Levels

We Need to Think More About Low-level Radiation By Laura Boksman, RSIC Chief Scientist First published in The Province on July 6, 2015, online edition Radiation is all around us. It occurs naturally in our environment, coming to us from the sun, from the soil and foods that we eat, and in the air that we […]

read more

Occupational Radiation – Champion your own Safety

Radiation safety awareness is not just for patients, but for the physicians and clinical teams treating patients as well. Radiation exposure has a cumulative effect over the course of a physician’s career. In cardiac catheterization labs, interventional radiology suites and electrophysiology, radiation exposure is a significant but often overlooked risk for medical staff. To address […]

read more

Commemorating the National Day of Mourning

On April 28 we are joining with Canadian workers and their families in the mourning of lives lost at work. Planning our safety program lets keep in mind hazards that are not so visible, like radiation. It did cost 220 miners their lives.

read more