Which dosimeter is sensitive to extremes in temperature and humidity and is being phased out?

Which dosimeter is sensitive to extremes in temperature and humidity and is being phased out?

• A. Handheld ionization chamber
• B. Film badge
• C. TLD
• D. Pocket ionization chamber

Answer: (B)

The main idea here is how environmental conditions affect dosimeters. A film badge records dose by the darkening of photographic film, but the film’s response is highly influenced by temperature and humidity and by how the film is processed. That means readings can drift or become inconsistent if conditions aren’t tightly controlled, and you also need lab processing to obtain the dose result. Because of these sensitivities and the delays and variability they introduce, film badges are being phased out in favor of more stable and faster-reading devices. The other options measure dose directly in real time or with materials that are less affected by humidity and temperature, so they remain in use and aren’t being phased out at the same rate.

The main idea here is how environmental conditions affect dosimeters. A film badge records dose by the darkening of photographic film, but the film’s response is highly influenced by temperature and humidity and by how the film is processed. That means readings can drift or become inconsistent if conditions aren’t tightly controlled, and you also need lab processing to obtain the dose result. Because of these sensitivities and the delays and variability they introduce, film badges are being phased out in favor of more stable and faster-reading devices. The other options measure dose directly in real time or with materials that are less affected by humidity and temperature, so they remain in use and aren’t being phased out at the same rate.