Dosimeters

Dosimeters

Dosimeters are devices used to measure and record the amount of radiation to which a person has been exposed. They are commonly used in industries where workers are at risk of exposure to ionizing radiation, such as nuclear power plants, medical facilities, and industrial radiography. Dosimeters come in different types, including film badges, thermoluminescent dosimeters (TLDs), and electronic personal dosimeters (EPDs). Film badges are the oldest type of dosimeter and consist of a small piece of photographic film enclosed in a holder. The film is sensitive to radiation and changes in response to exposure. After a period of time, the badge is sent to a laboratory for processing, and the film is developed and analyzed to determine the amount of radiation exposure. TLDs are more commonly used today and consist of small crystals that emit light when exposed to radiation. The crystals are read using a special machine, and the amount of light emitted is proportional to the amount of radiation exposure. EPDs are the most advanced type of dosimeter and use electronic components to measure and record radiation exposure in real-time. They can be programmed to sound an alarm when a certain level of exposure is reached, providing an immediate warning to the wearer. Dosimeters are important tools for protecting workers from the harmful effects of radiation exposure. By monitoring exposure levels, employers can take steps to reduce exposure and ensure that workers are not exposed to dangerous levels of radiation.

radiation, exposure, film badges, TLDs, EPDs

— David Martin

CITATION : "David Martin. 'Dosimeters.' Design+Encyclopedia. https://design-encyclopedia.com/define/dosimeters?E=320430 (Accessed on October 14, 2026)"