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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Passive Radiation Detector

A passive detector is a device, usually in the form of a Dosimeter, which is used to measure levels of Ionising Radiation exposure. An example includes the Film Badge and the Thermo Luminescent Dosimeter (TLD). The detectors are passive because they need to be 'read' at a later stage in order to ascertain the level of exposure recorded. See Active Detector which can provide real-time information.

Reality is merely an illusion, albeit a very persistent one

– Albert Einstein