What is the criterion for determining the need for personnel body dosimeters?

The criterion for determining the need for personnel body dosimeters is based on the potential exposure to radiation that individuals may experience during their work activities. The guideline of individuals likely to incur more than 100 millirem of "deep" dose per year is established to ensure that those who may have significant exposure to radiation are monitored for their safety.

Deep dose refers to the amount of radiation absorbed by the body at a depth of 30 centimeters in tissue, which is an important measure for assessing health risks associated with radiation exposure. By using a dosimeter to track this type of exposure, it allows for proper evaluation and management of radiation safety protocols, ensuring that radiation exposure stays within safe limits and that appropriate protective measures can be implemented.

Monitoring individuals who are expected to receive more than this threshold helps maintain regulatory compliance and safeguards the health of personnel, particularly in environments where there might be potential for increased radiation exposure. Thus, the selection of this specific criterion is crucial in maintaining safety and monitoring for those likely to encounter significant radiation in their work.