What is the primary function of a dosimeter?

The primary function of a dosimeter is to measure and record cumulative radiation exposure. This device is essential in environments where individuals may be exposed to various levels of radiation over time, such as in medical, nuclear, or research settings. Dosimeters track the total amount of radiation a person is exposed to and can help ensure that exposure stays within safe limits as established by health guidelines.

By continuously accumulating exposure data, dosimeters provide valuable information for assessing health risks associated with radiation. This capability is critical for personnel safety, compliance with regulations, and timely intervention if radiation levels exceed acceptable thresholds. In contrast, while providing immediate visual feedback, shielding against radiation, or calibrating devices is important in their own right, these functions do not capture the primary purpose of a dosimeter, which is centered around the accurate assessment of cumulative exposure over time.