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.

The definition of 'safe' is not strictly an engineering term; it's a societal term. Does it mean absolutely no loss of life? Does it mean absolutely no contamination with radiation? What exactly does 'safe' mean?

– Henry Petroski