IMAGING & RADIOLOGY, NUCLEAR MEDICINE
Definition A type of dosimeter that holds a film capable of absorbing radiation, which is used to monitor and quantify a radiation worker’s exposure to occupation-related x-rays and gamma-radiation. The badge may contain filters which shield parts of the film from certain types of radiation.
Note: The maximum radiation exposure allowed by NIOSH is 5000 mRad/year or 1500 mRad for any 3 months. While film badges are the most widely used radiation dosimeters on a global scale, they are little used in the USA, as multi-chip thermoluminescent dosimeters are preferred.
Synonyms Film badge dosimeter, film dosimeter
Reference Radiation Safety Guide–NIH http://en.wikipedia.org/wiki/Film_badge_dosimeter