Radiation exposure of workers assigned to the maintenance of air surveillance radar

摘要

The French Defence Radiation Protection Service (SPRA) conducted a study to assess the radiation exposure of personnel assigned to the maintenance of the Palmier radar in an Air Force Base. The aim of the study was the assessment of the annual effective doses received by personnel assigned to these maintenance operations, and the measurement of equivalent dose rates in the area in order to realise radiological zoning. In two measurement campaigns, the annual individual effective doses, measured by passive whole-body OSL Inlight ? dosimeters, consolidated the results obtained by radiometric measurements. Moreover, the equivalent dose rate shows wide variations in relation to the position of the operator in the emitter's area. From these results, the authors propose recommendations for categorisation of workers, radiological zoning and dose monitoring procedures.