What is the primary function of a dosimeter?

The primary function of a dosimeter is to measure cumulative radiation exposure. Dosimeters are devices worn by individuals working in environments where they may be exposed to ionizing radiation, such as in nuclear power plants or medical facilities using radiation for diagnostics and treatment. These devices are essential for monitoring the amount of radiation a worker has been exposed to over time, ensuring that the exposure stays within safe limits established by regulatory agencies.

By continuously tracking radiation exposure, dosimeters help in assessing the health risks associated with radiation work and enable timely interventions if exposure levels approach or exceed occupational safety limits. Regular measurement of cumulative exposure is integral to radiation safety programs, helping to protect workers from potential harmful effects of excessive radiation.

Other options do have their roles in radiation safety but do not capture the primary function of a dosimeter. For example, cleansing contaminated surfaces relates to decontamination processes, analyzing types of radiation pertains to more complex diagnostic equipment or methods, and providing emergency alerts is often the function of dedicated safety systems rather than a dosimeter itself. The dosimeter's focused role is specifically in measuring exposure, underscoring its importance in protecting workers' health.