When wearing a film badge, where should it be positioned?

The film badge should be worn outside the protective apron to accurately monitor the radiation exposure received by the individual. The primary function of the film badge is to measure the dose of radiation the wearer is exposed to, and placing it outside the apron ensures that it captures exposure from both scatter radiation and direct radiation effectively.

Wearing the badge at collar level or waist level could potentially underestimate exposure due to the shielding effect of the protective apron, which is designed to reduce radiation exposure to critical organs. Keeping the badge outside ensures that it provides a true representation of the radiation dose the person is receiving in the working environment.