What is the primary function of a dosimeter in radiation safety?

The primary function of a dosimeter is to measure the dose of radiation exposure that an individual receives while working in environments where radiation is present. Dosimeters are essential tools in radiation safety because they provide quantitative information about the amount of radiation exposure over time, helping to ensure that exposure limits set by regulatory agencies are not exceeded.

By monitoring radiation dose, dosimeters protect individuals by informing them of their exposure levels, allowing for appropriate safety measures to be taken if doses approach unsafe levels. They can be worn on the body or placed in specific areas to record cumulative radiation exposure, offering a reliable means of tracking and managing safety in radiation environments. Thus, the correct answer, which identifies the measurement capability of dosimeters, accurately reflects their critical role in maintaining safety in radiation-related work.