Sealed Source Tracking System

The accompanying dataset contains all transactions catalogued in the Sealed Source Tracking System with annual updates. The SSTS is used in conjunction with the National Sealed Source Registry to track and report the movement of high- and very high-risk sealed sources within Canada. Sealed sources are radioactive nuclear substances that are encapsulated or bonded to a cover to prevent the loss of radioactive contents. Sealed sources are used in a variety of medical, industrial, commercial and academic and research applications. Categories of sealed sources range from 1 to 5, with 1 considered very high risk, and 5 considered very low risk. The dataset was generated by the Canadian Nuclear Safety Commission (CNSC) to produce the National Sealed Source Registry and Sealed Source Tracking System Annual Report, which is published on the CNSC’s website. The following data shows all transactions entered by CNSC licensees who are required to track their sealed source inventory.

Publisher

Canadian Nuclear Safety Commission

Resources

18

Catalogue metadata updated

2025-12-18