Which device is worn by personnel to track their cumulative radiation exposure over time?

Which device is worn by personnel to track their cumulative radiation exposure over time?

• A. Dosimeter
• B. Shipboard RADIACS
• C. Countermeasure Washdown
• D. JSGPN M50 (gas mask)

Answer: (A)

A dosimeter is worn by personnel to track the cumulative radiation exposure over time. It sits on or near the body and records the amount of ionizing radiation absorbed over a period, giving a readout of the accumulated dose so you can ensure exposure stays within safety limits and support ALARA practices. Variants include film badges, thermoluminescent dosimeters, optically stimulated luminescence dosimeters, and electronic personal dosimeters. Other options aren’t personal dose history devices: shipboard RADIACS monitors ambient radiation levels, countermeasure washdown is a cleaning procedure, and the JSGPN M50 gas mask is protective equipment, not a dosimeter.

A dosimeter is worn by personnel to track the cumulative radiation exposure over time. It sits on or near the body and records the amount of ionizing radiation absorbed over a period, giving a readout of the accumulated dose so you can ensure exposure stays within safety limits and support ALARA practices. Variants include film badges, thermoluminescent dosimeters, optically stimulated luminescence dosimeters, and electronic personal dosimeters. Other options aren’t personal dose history devices: shipboard RADIACS monitors ambient radiation levels, countermeasure washdown is a cleaning procedure, and the JSGPN M50 gas mask is protective equipment, not a dosimeter.