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Norm

ISO 8529-1:2001

Issue date: 2001 02 01

Reference neutron radiations — Part 1: Characteristics and methods of production

This part of ISO 8529 specifies the reference neutron radiations, in the energy range from thermal up to 20 MeV, for calibrating neutron-measuring devices used for radiat...
Withdrawn: 2021 11 08
Publisher:
International Organization for Standardization
Format:
Digital | 24 Pages
Language:
English
Currently valid:

This part of ISO 8529 specifies the reference neutron radiations, in the energy range from thermal up to 20 MeV,

for calibrating neutron-measuring devices used for radiation protection purposes and for determining their response

as a function of neutron energy. Reference radiations are given for neutron fluence rates of up to 1 _ 109 m?2_s?1,

corresponding, at a neutron energy of 1 MeV, to dose-equivalent rates of up to 100 mSv_h?1.

This part of ISO 8529 is concerned only with the methods of producing and characterizing the neutron reference

radiations. The procedures for applying these radiations for calibrations are described in ISO 8529-2 and

ISO 8529-3.

The reference radiations specified are the following:

_ neutrons from radionuclide sources, including neutrons from sources in a moderator;

_ neutrons produced by nuclear reactions with charged particles from accelerators;

_ neutrons from reactors.

In view of the methods of production and use of them, these reference radiations are divided, for the purposes of

this part of ISO 8529, into the following two separate sections.

_ In clause 4, radionuclide neutron sources with wide spectra are specified for the calibration of neutronmeasuring

devices. These sources should be used by laboratories engaged in the routine calibration of

neutron-measuring devices, the particular design of which has already been type tested.

_ In clause 5, accelerator-produced monoenergetic neutrons and reactor-produced neutrons with wide or quasi

monoenergetic spectra are specified for determining the response of neutron-measuring devices as a function

of neutron energy. Since these reference radiations are produced at specialized and well equipped

laboratories, only the minimum of experimental detail is given.

For the conversion of neutron fluence into the quantities recommended for radiation protection purposes,

conversion coefficients have been calculated based on the spectra presented in normative annex A and using the

fluence-to-dose-equivalent conversion coefficients as a function of neutron energy as given in ICRP Publication 74

and ICRU Report 57.

ISO 8529-1:2021
2021 11 08
Neutron reference radiations fields — Part 1: Characteristics and methods of production
Norm
ISO 8529-1:2001
2001 02 01
Reference neutron radiations — Part 1: Characteristics and methods of production
Norm
ISO 8529:1989
1989 09 28
Neutron reference radiations for calibrating neutron-measuring devices used for radiation protection...
Norm
Norm
ISO 8529-1:2021
Issue date : 2021 11 08
Neutron reference radiations fields — Part 1: Characteristics and methods of production