Radiation Protection Glossary

A radiation protection glossary for Radiation Protection Supervisors (RPS) and anyone interesting in radiation safety terminology. The glossary is a mixture of health physics terms, and phrases related to radiation legislation, transport, practical safety and similar.

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Film Badge

The Film Badge is a type of Passive Dosimeter. It consists of a photographic emulsion film, which responds to Ionising Radiation by changing optical density, in a light tight wrapping (contained in a holder). The holder, which also contains various filters (for measuring tissue equivalent quantities), is usually worn on the trunk of the body.

Physics is really nothing more than a search for ultimate simplicity, but so far all we have is a kind of elegant messiness

– Bill Bryson