Which dosimeter is designed to evaluate exposure to the head, neck, and lens of the eye?

Which dosimeter is designed to evaluate exposure to the head, neck, and lens of the eye?

• A. Whole Body Dosimeter
• B. Extremity Dosimeter
• C. Collar Dosimeter
• D. Neutron Dosimeter

Answer: (C)

The device worn at the collar is designed to estimate radiation dose to the head and neck region, including the lens of the eye. Placed near the throat and chest, its location tracks the exposure that the upper body—the head and neck area—receives during work with ionizing radiation. This makes it a practical proxy for ocular exposure, which is important because the lens is very sensitive to radiation and requires monitoring. In contrast, a whole body dosimeter measures dose on the torso, an extremity dosimeter measures dose to the hands or feet, and a neutron dosimeter specifically measures neutron radiation. So the collar dosimeter is the appropriate choice for evaluating exposure to the head, neck, and eye region.

The device worn at the collar is designed to estimate radiation dose to the head and neck region, including the lens of the eye. Placed near the throat and chest, its location tracks the exposure that the upper body—the head and neck area—receives during work with ionizing radiation. This makes it a practical proxy for ocular exposure, which is important because the lens is very sensitive to radiation and requires monitoring.

In contrast, a whole body dosimeter measures dose on the torso, an extremity dosimeter measures dose to the hands or feet, and a neutron dosimeter specifically measures neutron radiation. So the collar dosimeter is the appropriate choice for evaluating exposure to the head, neck, and eye region.