What is the main purpose of a dosimeter?

The primary purpose of a dosimeter is to measure radiation exposure. Dosimeters are specifically designed devices that allow individuals working in environments where they may be exposed to radiation, such as medical facilities, nuclear power plants, or research laboratories, to quantify their personal radiation dose over time.

They work by detecting and measuring ionizing radiation—such as alpha particles, beta particles, and gamma rays—and converting that radiation exposure into a readable format, often giving results in units like millisieverts (mSv) or roentgens (R). This information is vital for ensuring the safety of workers by monitoring their exposure levels and ensuring they remain within regulated limits set for occupational safety.

While other options address different environmental factors, such as light, chemical leaks, and temperature, none relate directly to the main function of a dosimeter, which focuses exclusively on assessing radiation exposure. This specialization underscores the importance of dosimeters in occupational health and safety within radiological applications.