What is the purpose of a "dead man" exposure switch in mobile radiography?

The "dead man" exposure switch in mobile radiography is designed to ensure the safety of the operator and prevent unintentional radiation exposure. Its primary function is to terminate the exposure if the switch is released. This means that if the operator loses their grip on the switch—perhaps due to an emergency or an unexpected situation—the exposure will stop immediately.

This design mechanism helps safeguard against prolonged exposure to radiation, protecting both the operator and any nearby individuals. Keeping the exposure under control is vital in medical imaging, where unnecessary radiation can pose health risks. Therefore, the "dead man" switch is an essential safety feature that prioritizes the well-being of personnel while they perform imaging procedures.