Sealed Source [Nuclear Regulatory Commission] Law and Legal Definition

According to 10 CFR 35.2 [Title 10 – Energy; Chapter I -- Nuclear Regulatory Commission; Part 35 -- Medical Use of Byproduct Material; Subpart A -- General Information], sealed source means “any byproduct material that is used as a source of radiation and is encased in a capsule designed to prevent leakage or escape of the byproduct material.”