Which of the following is a measure of radiation exposure?

Millisieverts are a unit of measurement specifically used to quantify radiation exposure, indicating how much ionizing radiation a person has absorbed. This measurement is critical in the context of nuclear safety and health physics, as it allows professionals to assess the potential biological effects of radiation on human health. The millisievert is a derived unit that reflects the dose of radiation received, with 1 millisievert being one-thousandth of a sievert, a standard reference dose.

Understanding different units of measure can provide context; decibels relate to sound intensity, watts measure power, and joules quantify energy. While these units are important in their respective fields, they are not applicable to radiation exposure. The focus on millisieverts emphasizes safe exposure limits and health risks associated with radiation, making it crucial for employees in nuclear settings to be familiar with this metric.