What is a lock-out survey?

A lock-out survey specifically involves the verification that a sealed radioactive source is securely placed in its shielded position, meaning that the source is properly contained and there is minimal risk of radiation exposure to personnel. This type of survey is critical in ensuring safety in environments where radioactive materials are used, as it confirms that there is no potential for accidental exposure or contamination.

The process typically involves checking various aspects, such as the integrity of the shielding, the proper positioning of the source, and compliance with safety protocols to prevent unintended access or exposure. Performing a lock-out survey is an essential part of safety practices in facilities where radioactive sources are used, reinforcing the importance of maintaining radiation safety standards for both workers and the surrounding environment.