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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Enriched uranium

Uranium where the content U-235 is increased above its natural value of around 0.7% by weight. The enrichment process will also yield Depleted Uranium. Enriched Uranium is Fissile and can undergo nuclear fission under certain conditions, it's therefore used in Nuclear Power production and Nuclear Weapons.

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