Personnel Monitoring is the measuring of the radiation exposure requiring you to wear a ________

• A. Geiger counter
• B. Shielding
• C. Dosimeter
• D. Film badge

Answer: (C)

Personnel monitoring involves tracking how much radiation a worker is exposed to, which requires wearing a device that records the dose. That device is a dosimeter—a sensor designed to measure and log the ionizing radiation dose a person receives, so you can determine cumulative exposure over time. There are various forms of dosimeters, such as film badges or thermoluminescent dosimeters, but the general term describes the wearable monitoring device. A Geiger counter detects radiation levels in the environment but doesn’t provide a personal dose history; shielding is protective equipment, not a monitor. So the wearable used for monitoring exposure is a dosimeter.