DANB Radiation Health and Safety (RHS) Practice Exam 2025 - Free RHS Practice Questions and Study Guide

A dosimeter is a device specifically designed to measure the amount of radiation exposure that an individual receives over a certain period of time. When worn, it accumulates the radiation dose and provides a record that helps in monitoring exposure to ionizing radiation, ensuring that it remains within safe limits. This is crucial for health professionals working in environments where exposure to radiation is a risk, such as in dental practices or medical imaging facilities. By using dosimeters, workers can assess their exposure levels and take necessary precautions to limit their risk of radiation-related health issues.

The other choices do not reflect the function of a dosimeter. Measuring lead content in X-ray equipment, assessing electrical charge during procedures, or monitoring the temperature of the X-ray machine are unrelated to the purpose of a dosimeter, which is solely focused on tracking radiation exposure levels for safety compliance.