If a sealed source is suspected to be leaking, what is the immediate action an operator should take?

When a sealed source is suspected to be leaking, the immediate action of ceasing all radiographic operations and restricting the area is crucial for safety and containment. This action is necessary to prevent further exposure to radiation and to minimize the risk of contamination for personnel and the environment.

By halting operations, the operator ensures that there is no additional radiation being emitted or released, which protects both the individuals currently working in the area and any potential bystanders. Restricting access to the area helps contain the situation, preventing untrained personnel from entering a potentially hazardous zone, which could lead to unnecessary exposure.

This response aligns with safety protocols and regulations regarding handling radioactive materials, emphasizing the importance of protecting health and safety in the workplace.