In general, what is the correct procedure when a dosimeter is lost inside a restricted area?

• A. Leave the RCA and report to Radiation Protection
• B. Wait for a supervisor
• C. Keep working until shift ends
• D. Ignore the incident

Answer: (A)

When a dosimeter is lost in a restricted area, the immediate step is to leave the area and report the incident to Radiation Protection. The dosimeter is used to track your radiation exposure, and losing it means your dose for that period can’t be verified and there may be safety or security implications. Reporting promptly allows Radiation Protection to locate or replace the device, check for contamination if needed, and ensure dose records are accurate. It also prevents continuing work without valid monitoring. Delaying, waiting for a supervisor, continuing to work, or ignoring the incident would compromise safety and regulatory requirements.