‘Contained sources' are radioactive sources in which the radioactivity cannot be easily dispersed due to the nature of their design or construction. Because the spread of contamination from contained source use is much less likely, the radiation safety requirements are different than for other radioactive sources. The following topics apply specifically to Contained Source use: Overview: Types, Hazards, and Categories of Contained Sources General Rules and Procedures for Category-- B, C, and D Sources Radiation Incidents Involving Contained Sources Additionally, the following topics apply to radioactive materials in general, including contained sources: Authorization to Use Radioactive Materials Buying & Acquiring Radioactive Materials Radioisotope Fact Sheets Inventory & Tracking Shipping & Moving Radioactive Materials Pregnancy in a Radioisotope Lab Radiation Safety Manual Go to: Overview: Types, Hazards, and Categories of Contained Sources » Staff Colt Greer Assistant Director and RSO 609-258-1919 Chelsea McDonnell Health and Safety Technician 609-258-6255