Developments in personal dosimetry for external radiations over the past twenty-one years

Since 1963 when SRP was founded the basic philosophy and the techniques employed in personal dosimetry have continuously been developed. New measurement quantities have been recommended by ICRP and ICRU, primary radiation standards have been extended and reference radiations specified. Substantial effort has been spent on the development of new measuring techniques as well as the introduction of automation and computerised dose record keeping systems. This article highlights the major changes in personal dosimetry introduced during the past 21 years. (author)