What is the primary function of a dosimeter?

The primary function of a dosimeter is to measure personal radiation exposure. This device is specifically designed to track the amount of ionizing radiation to which an individual is exposed over a certain period. Dosimeters are commonly used by workers in environments where they may encounter radiation, such as medical facilities or nuclear power plants.

By providing a quantitative measurement of radiation exposure, dosimeters help ensure that individuals do not exceed prescribed safety limits, allowing for effective monitoring of health and safety in radiation-related occupations.

The other choices, while related to radiation safety, do not describe the primary function of a dosimeter. Monitoring environmental radiation levels is typically done with different types of instruments, calibration of survey meters involves precise instruments designed to assess and correct the accuracy of measuring devices, and detecting electrical current pertains to a different field of study unrelated to radiation measurement. Thus, the focus on personal exposure measurement highlights the essential role dosimeters play in protecting individuals from the potential harmful effects of radiation.