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.

Search the Glossary by either clicking on a letter or typing a Keyword into the search box.

Collective Dose

More accurately known as Collective Effective dose. This quantity is derived from summing the individual effective doses within an exposed population (or workforce). One type of unit to express this quantity is the man Sv. This quantity has been used to assess overall detriment and therefore as an aid to decision making techniques in optimising radiation protection (e.g. Risk Assessment). It is less well used nowadays where dose constraints are preferred instead .

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