THE EURATOM WORKING GROUP ON REACTOR DOSIMETRY AND THE ASTM-EURATOM SYMPOSIA The Euratom Working Group on Reactor Dosimetry (EWGRD) started around 1960 with members having been nominated by the governments, from each European la- boratory working in reactor physics and technology. The goal was to exchange di- rectly experience and know-how in reactor dosimetry and related programmes. A need for normalisation was felt in order to guarantee that: the same nuclear data is used; measurements in different laboratories give the same results (need for in- tercalibration experiments and standards);...