Action to be Taken in the Event of a Serious Nuclear Accident in an Industrial Establishment

This paper describes a detection and alarm system installed in a facility where there is risk of a criticality accident, and the action required for evacuation of personnel to an assembly point. Details are given of the layout and equipment envisaged for an assembly point of this kind, facilitating the rapid counting of the personnel and the segregation of persons who may have been contaminated or irradiated. A description is also given of the dosimetric techniques used for this initial segregation and the arrangements adopted for area and personal monitoring with a view to providing the specialized medical services with the data necessary for treating irradiated persons. The standards adopted in France relating to area monitoring indications and the marking of evacuation, routes, on the one hand, and conventional signs, on the other, in a plan of action for radiation protection are given. (author)