Which statement best describes the difference between a conventional dosimeter and a real-time dosimetry system?

• A. Conventional dosimeters record integrated dose
• B. Real-time dosimetry provides immediate dose rate data enabling adjustments
• C. They both measure dose in the same way
• D. Real-time dosimetry stores only the peak dose

Answer: (B)

The essential idea is the feedback and data stream each type provides. Real-time dosimetry continuously measures and displays dose rate (and accumulated dose) as exposure happens, so you can see instantly if you need to change shielding, shorten exposure, or adjust work practices. Conventional dosimeters, such as film badges or thermoluminescent dosimeters, accumulate dose over a monitoring period and are read later, so they don’t give you immediate feedback to adjust ongoing exposure.

That’s why the best statement is that real-time dosimetry provides immediate dose rate data enabling adjustments. The other options don’t capture this real-time feedback: conventional dosimeters do record integrated dose but not the ongoing rate; they don’t measure dose in the same real-time manner; and real-time systems don’t store only the peak dose—they track ongoing dose rate and total accumulated dose.