Which dosimeters are least affected by moisture?

Thermoluminescent dosimeters (TLDs) are least affected by moisture due to their unique design and the materials used in their construction. TLDs consist of lithium fluoride crystals, which have a relatively low sensitivity to environmental conditions compared to other dosimeter types. When exposed to radiation, these crystals store energy, which is released as light when heated. This property ensures that TLDs maintain their accuracy in various humidity levels, making them suitable for environments where moisture could compromise the integrity of other dosimeters.

In contrast, film badges are sensitive to light and humidity, which can fog the film and lead to inaccurate readings. Ionization chambers are primarily used for high radiation dose measurements and can be somewhat affected by humidity due to their operational principles. Electronic dosimeters, while generally robust, can still have some degree of vulnerability to moisture, particularly if not properly sealed. This makes TLDs the most reliable choice when moisture is a concern.