Which type of dosimeter uses a film to measure radiation exposure?

Which type of dosimeter uses a film to measure radiation exposure?

• A. Optically stimulated luminescence dosimeters
• B. Film badges
• C. Thermoluminescent dosimeters
• D. Extremity dosimeters

Answer: (B)

Film badges are a type of dosimeter that specifically use film to measure radiation exposure. The principle behind a film badge is that it contains a piece of photographic film that darkens in response to radiation exposure. When the film is developed, the degree of darkening can be quantified to determine the amount of radiation the wearer has been exposed to over a specific period. This method is valuable in monitoring radiation exposure in various environments, particularly in occupational settings where personnel may work with or around radiation sources. The simplicity and effectiveness of film badges have made them popular, although they are somewhat less common in modern practices due to the availability of more advanced dosimetry technologies. In contrast, optically stimulated luminescence dosimeters, thermoluminescent dosimeters, and extremity dosimeters employ different physical principles or materials to measure radiation and do not utilize film in their measurement processes.

Film badges are a type of dosimeter that specifically use film to measure radiation exposure. The principle behind a film badge is that it contains a piece of photographic film that darkens in response to radiation exposure. When the film is developed, the degree of darkening can be quantified to determine the amount of radiation the wearer has been exposed to over a specific period.

This method is valuable in monitoring radiation exposure in various environments, particularly in occupational settings where personnel may work with or around radiation sources. The simplicity and effectiveness of film badges have made them popular, although they are somewhat less common in modern practices due to the availability of more advanced dosimetry technologies.

In contrast, optically stimulated luminescence dosimeters, thermoluminescent dosimeters, and extremity dosimeters employ different physical principles or materials to measure radiation and do not utilize film in their measurement processes.