Which device is used to measure radiation exposure levels?

The dosimeter is the device used to measure a person’s cumulative radiation exposure over time. It typically comes in the form of a badge, which personnel can wear, and it records the amount of ionizing radiation they are exposed to during their work. This is crucial in fields like dentistry and other medical professions where personnel work around radiation sources, as it allows for monitoring and ensuring that exposure stays within safety limits established by regulatory agencies.

While other devices like a Geiger counter and an ionization chamber measure radiation levels, they are primarily used for real-time detection and survey of radiation in an environment rather than tracking individual exposure over time. A radiometer, on the other hand, is often used to measure the intensity of electromagnetic radiation but does not serve the same purpose of monitoring cumulative exposure as a dosimeter does.