Which device is described as being used for personal dosimetry in the source material?

Which device is described as being used for personal dosimetry in the source material?

• A. Pocket ionization chamber
• B. Film badge
• C. Geiger-Mueller detector
• D. Thermoluminescent dosimeter

Answer: (A)

Personal dosimetry is about measuring the amount of ionizing radiation a worker is exposed to during a task. A pocket ionization chamber is a small, portable ionization chamber carried on the person that provides an immediate readout of exposure, often right after or during the work shift. This real-time capability and portability make it the device described in the material as being used for personal dosimetry. Film badges and thermoluminescent dosimeters are passive dosimeters that accumulate dose over time and require processing or reading after the exposure period, so they don’t give the immediate feedback that a pocket ionization chamber offers. A Geiger-Mueller detector, meanwhile, is a survey instrument used to detect and gauge radiation presence or rate, not typically used to track an individual's accumulated dose.

Personal dosimetry is about measuring the amount of ionizing radiation a worker is exposed to during a task. A pocket ionization chamber is a small, portable ionization chamber carried on the person that provides an immediate readout of exposure, often right after or during the work shift. This real-time capability and portability make it the device described in the material as being used for personal dosimetry.

Film badges and thermoluminescent dosimeters are passive dosimeters that accumulate dose over time and require processing or reading after the exposure period, so they don’t give the immediate feedback that a pocket ionization chamber offers. A Geiger-Mueller detector, meanwhile, is a survey instrument used to detect and gauge radiation presence or rate, not typically used to track an individual's accumulated dose.