This document specifies additional procedures and data for the calibration of dosemeters and doserate
meters used for individual and area monitoring in radiation protection. The general procedure for the
calibration and the determination of the response of radiation protection dose(rate)meters is described
in ISO 29661 and is followed as far as possible. For this purpose, the photon reference radiation fields
with mean energies between 8 keV and 9 MeV, as specified in ISO 4037-1, are used. In Annex D some
additional information on reference conditions, required standard test conditions and effects associated
with electron ranges are given. For individual monitoring, both whole body and extremity dosemeters
are covered and for area monitoring, both portable and installed dose(rate)meters are covered.
Charged particle equilibrium is needed for the reference fields although this is not always established
in the workplace fields for which the dosemeter should be calibrated. This is especially true at photon
energies without inherent charged particle equilibrium at the reference depth d, which depends on the
actual combination of energy and reference depth d. Electrons of energies above 65 keV, 0,75 MeV and
2,1 MeV can just penetrate 0,07 mm, 3 mm and 10 mm of ICRU tissue, respectively, and the radiation
qualities with photon energies above these values are considered as radiation qualities without inherent
charged particle equilibrium for the quantities defined at these depths. This document also deals with
the determination of the response as a function of photon energy and angle of radiation incidence. Such
measurements can represent part of a type test in the course of which the effect of further influence
quantities on the response is examined.
This document is only applicable for air kerma rates above 1 μGy/h.
This document does not cover the in-situ calibration of fixed installed area dosemeters.
The procedures to be followed for the different types of dosemeters are described. Recommendations
are given on the phantom to be used and on the conversion coefficients to be applied. Recommended
conversion coefficients are only given for matched reference radiation fields, which are specified in
ISO 4037-1:2019, Clauses 4 to 6. ISO 4037-1:2019, Annexes A and B, both informative, include fluorescent
radiations, the gamma radiation of the radionuclide 241Am, S-Am, for which detailed published
information is not available. ISO 4037-1:2019, Annex C, gives additional X radiation fields, which are
specified by the quality index. For all these radiation qualities, conversion coefficients are given in
Annexes A to C, but only as a rough estimate as the overall uncertainty of these conversion coefficients
in practical reference radiation fields is not known.
NOTE The term dosemeter is used as a generic term denoting any dose or doserate meter for individual or
area monitoring.