Which dosimeter routinely checks your dose, is digital, provides an alarm when a certain dose is reached, and is used to assess dose rate?

• A. Dosimeter of Legal Records
• B. Pocket Ionization Chamber
• C. Personal Radiation Badge
• D. Self Reading Dosimeter

Answer: (D)

Real-time exposure monitoring with automatic alerts and dose-rate information is what this device is built for. A self-reading dosimeter is worn on the body and continuously tracks exposure, displaying the current accumulated dose (and often the dose rate) in a digital readout. It can also be set to alarm—audible or visual—when a preset dose is reached, so you can take action right away. This combination of real-time digital readout, alarm capability, and dose-rate information makes it the best fit for routinely checking your dose and managing exposure on the job.

A pocket ionization chamber can give an immediate reading, but many models aren’t digital and they don’t typically provide an automatic alarm or continuous dose-rate display. A personal radiation badge (film badge) records dose for later processing and doesn’t offer real-time monitoring or alarms. The dosimeter of legal records isn’t a standard radiation-monitoring device used in practice.