A system of transfer dosimetry in radiation processing

Abstract

Radiation processing provides accurate, reliable and standardized dosimetry and proper dose interpretation. The reasons for this are related to effectiveness, economy and as far as e.g. food preservation is concerned public health. Nationally or internationally centralized dose control and interplant dose standardization require a special transfer type dosimetry. Transfer dosimetry should be able fulfill particular criteria such as documentary evidence and suitability for mailing apart from requirements for wide dose and energy ranges and minor dependence on radiological and ambient parameters; the dosimeter probes should preferably be rugged and of low cost. Transfer dosimetry for high photon doses was subject of intensive investigations since IAEA initiated, supported and guided comparisons of, at present, promising dosimeters. A main purpose was to evaluate qualified dosimetry for international doseassurance. According to the final report of an Advisory Group to IAEA, it was the GSF alanine/ESR dosimetry which showed, among other systems, most reliable results covering all dose ranges of interest with a single detector type /I/.