NF ISO 6980-3, M60-515-3 (12/2023)

This document describes the procedures for calibrating dosimeters and dose rate meters, and determining their response in terms of operational quantities used for radiation protection purposes and defined by the International Commission on Radiological Units and Measurements (ICRU, from the English “International Commission on Radiation Units and Measurements”). As the ICRU 56 report points out, however, the ambient dose equivalent, H*(10), and the individual dose equivalent, Hp(10), used respectively for area monitoring and for individual monitoring in the case highly penetrating radiation are not appropriate quantities for beta radiation, even for radiation capable of passing through a tissue thickness of 10 mm (Emax > 2 MeV). This document provides guidance to any organization calibrating dosimeters and dose rate meters at radiation protective dose levels using reference beta radiation, and determining their response based on beta particle energy and of the angle of incidence of the radiation. These measurements may be part of a type test in which the effects of other influencing quantities on the response are examined. This document does not cover the in situ calibration of fixed area dosimeters. The term “dosimeter” is a generic term used to refer to any dosimeter or dose rate meter intended for individual or area monitoring. In addition to describing calibration procedures, this document includes recommendations for which phantoms to use and how to determine appropriate conversion coefficients. Recommendations are provided regarding the expression of measurement uncertainties and the preparation of calibration records and certificates.
(Automatic translation from French)