What must be done to a radioactive source that is found to be leaking?

The appropriate action when a radioactive source is found to be leaking is to control the area and notify safety personnel. This response is crucial for several reasons. First, it helps to minimize exposure to radiation and protects individuals in the vicinity from potential harm. Isolating the area ensures that no unauthorized personnel enter a potentially hazardous zone, reducing the risk of contamination or exposure.

Notifying safety personnel is essential because they are trained to deal with hazardous materials and can implement the necessary protocols to handle the leak safely. They can assess the situation, provide the correct equipment, and manage the cleanup process according to regulatory standards.

In contrast, handling a leaking source with bare hands poses a significant risk of radiation exposure to the individual, and storing it in a cardboard box may not contain the leak or prevent exposure. Covering it with a plastic bag may also be ineffective, as it does not address the need for containment and professional remediation. Overall, controlling the area and involving safety personnel is the most responsible and effective course of action.