Which device is typically used to assess dose exposure over time in radiation environments?

The device that is typically used to assess dose exposure over time in radiation environments is the film badge. Film badges contain radiographic film that is sensitive to ionizing radiation. When an individual is exposed to radiation, the film undergoes a chemical change that darkens the film in proportion to the amount of radiation exposure.

Film badges are particularly valuable for monitoring cumulative exposure because they can be worn continuously over a period of time, allowing for the measurement of accumulated radiation exposure rather than a single measurement at a point in time. After the exposure period, the film is developed and analyzed to determine the dose received.

This method is indispensable in environments where individuals may be exposed to radiation, such as dental or medical facilities, as it helps ensure that exposure remains within safe limits and provides valuable data for radiation safety management. While other devices exist for measuring radiation, they often serve different purposes, such as immediate detection rather than cumulative dose assessment.