sealedsource
Sealed sources are radioactive materials permanently encapsulated in a capsule or fixed in a solid matrix to prevent dispersion of radioactive material during normal use or under foreseeable conditions. The encapsulation provides mechanical and leak-tight containment, allowing the source to be handled with shielding and remote manipulation while minimizing exposure risk. Sealed sources are designed for long-term use and are intended to be reused, periodically inspected, and replaced when degraded or expired.
There are several encapsulation forms, including metal capsules, glass enclosures, or resin-encapsulated pellets. The activity and
Common uses include industrial radiography, well-logging, and calibration of instruments, as well as brachytherapy in medicine
Safety and regulatory considerations are central to sealed sources. Their manufacture, handling, storage, transport, and disposal
Lifecycle management includes proper disposal or recycling when a source expires or is decommissioned, typically through