The evolution of radiological risk management: an overview

The article presents the evolution of the principles that have structured the management of the risk associated with ionising radiation. It explains how a prudent approach has been adopted to deal with the uncertainties attached to the risk linked to low exposures. It particularly addresses the way in which a dose-risk relationship and a philosophy of action have been gradually developed so that risk-taking is organised in a responsible manner. Finally, the way expertise has been structured in the framework of a cautious approach is underlined.