EN ISO 8529-1:2023
(Main)Neutron reference radiations fields - Part 1: Characteristics and methods of production (ISO 8529-1:2021)
Neutron reference radiations fields - Part 1: Characteristics and methods of production (ISO 8529-1:2021)
This document specifies the neutron reference radiation fields, 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.
This document is concerned only with the methods of producing and characterizing the neutron reference radiation fields.
The neutron reference radiation fields specified are the following:
— neutron fields from radionuclide sources, including neutron fields from sources in a moderator;
— neutron fields produced by nuclear reactions with charged particles from accelerators;
— neutron fields from reactors.
Neutronen-Referenzstrahlungsfelder - Teil 1: Charakteristika und Verfahren zur Erzeugung (ISO 8529-1:2021)
Dieses Dokument legt die Neutronen-Referenzstrahlungsfelder im Energiebereich von thermisch bis 20 MeV fest, die zur Kalibrierung von Neutronenmessgeräten für Strahlenschutzzwecke und zur Bestimmung ihres Ansprechvermögens in Abhängigkeit von der Neutronenenergie verwendet werden.
Dieses Dokument befasst sich nur mit den Verfahren zur Erzeugung und Charakterisierung der Neutronen-Referenzstrahlungsfelder. Die Verfahren zur Anwendung dieser Strahlungsfelder für Kalibrierungen sind in den Literaturhinweisen [1] und [2] beschrieben.
Die beschriebenen Neutronen-Referenzstrahlungsfelder sind:
– Neutronenfelder von Radionuklidquellen, einschließlich Neutronenfelder von Quellen in einem Moderator;
– Neutronenfelder, die durch Kernreaktionen mit geladenen Teilchen aus Beschleunigern erzeugt werden;
– Neutronenfelder von Reaktoren.
Auf Grundlage ihrer Erzeugungs- und Anwendungsverfahren werden diese Neutronen-Referenzstrahlungsfel¬der für die Zwecke dieses Dokuments in den folgenden drei Abschnitten behandeltN1.
– In Abschnitt 4 werden Radionuklid-Neutronenquellen mit breiten Spektren für die Kalibrierung von Neutro¬nenmessgeräten beschrieben. Diese Quellen sollten von Laboren verwendet werden, die sich mit der regelmäßigen Kalibrierung von Neutronenmessgeräten befassen, deren jeweilige Konstruktionsart bereits bauartgeprüft ist.
– In Abschnitt 5 werden beschleunigererzeugte monoenergetische Neutronen und reaktorerzeugte Neutro¬nen mit breiten oder quasi-monoenergetischen Spektren zur Bestimmung des Ansprechvermögens von Neutronenmessgeräten in Abhängigkeit von der Neutronenenergie beschrieben. Da diese Neutronen-Referenzstrahlungsfelder in spezialisierten und gut ausgestatteten Laboren erzeugt werden, wird nur ein Minimum an experimentellen Details angegeben.
– In Abschnitt 6 werden thermische Neutronenfelder beschrieben. Diese Felder können durch moderierte Radionuklidquellen, Beschleuniger oder Reaktoren erzeugt werden.
Champs de rayonnement neutronique de référence - Partie 1: Caractéristiques et méthodes de production (ISO 8529-1:2021)
Referenčna polja nevtronskih sevanj - 1. del: Značilnosti in metode izdelave (ISO 8529-1:2021)
Ta dokument določa referenčna polja nevtronskih sevanj v energijskem območju od toplotnega do 20 MeV za umerjanje nevtronskih merilnikov, ki se uporabljajo za zaščito pred sevanjem in za ugotavljanje njihovega odziva glede na energijo nevtronov.
Ta dokument se nanaša le na metode izdelave in karakterizacije referenčnih polj nevtronskih sevanj.
Določa naslednja referenčna polja nevtronskih sevanj:
– nevtronska polja iz virov radionuklidov, vključno z nevtronskimi polji iz virov v moderatorju;
– nevtronska polja, ki nastanejo pri jedrskih reakcijah z nabitimi delci iz pospeševalnikov;
– nevtronska polja iz reaktorjev.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2023
Referenčna polja nevtronskih sevanj - 1. del: Značilnosti in metode izdelave (ISO
8529-1:2021)
Neutron reference radiations fields - Part 1: Characteristics and methods of production
(ISO 8529-1:2021)
Champs de rayonnement neutronique de référence - Partie 1: Caractéristiques et
méthodes de production (ISO 8529-1:2021)
Ta slovenski standard je istoveten z: EN ISO 8529-1:2023
ICS:
17.240 Merjenje sevanja Radiation measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8529-1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 17.240
English Version
Neutron reference radiations fields - Part 1:
Characteristics and methods of production (ISO 8529-
1:2021)
Champs de rayonnement neutronique de référence -
Partie 1: Caractéristiques et méthodes de production
(ISO 8529-1:2021)
This European Standard was approved by CEN on 16 July 2023.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8529-1:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 8529-1:2021 has been prepared by Technical Committee ISO/TC 85 "Nuclear energy,
nuclear technologies, and radiological protection” of the International Organization for Standardization
(ISO) and has been taken over as EN ISO 8529-1:2023 by Technical Committee CEN/TC 430 “Nuclear
energy, nuclear technologies, and radiological protection” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 8529-1:2021 has been approved by CEN as EN ISO 8529-1:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 8529-1
Second edition
2021-11
Neutron reference radiations fields —
Part 1:
Characteristics and methods of
production
Champs de rayonnement neutronique de référence —
Partie 1: Caractéristiques et méthodes de production
Reference number
ISO 8529-1:2021(E)
ISO 8529-1:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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Phone: +41 22 749 01 11
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Published in Switzerland
ii
ISO 8529-1:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Broad spectrum neutron reference radiation fields produced with radionuclide
sources . 3
4.1 Overview . 3
4.2 Types of calibration sources . 3
4.3 Source shape and encapsulation . 4
4.4 Photon component of the neutron field . 4
4.5 Energy distribution of neutron source emission rate . 5
4.6 Neutron fluence rate produced by a source. 5
4.7 Determination of the neutron source emission rate. 6
4.8 Irradiation facility . 6
5 Reference fields for the determination of the response of neutron‑measuring
devices as a function of neutron energy . 7
5.1 Overview . 7
5.2 General properties . 7
5.3 Neutron reference radiation fields produced with particle accelerators . 8
5.3.1 General requirements . 8
5.3.2 Energy of charged particles . 8
5.3.3 Neutron spectrum . 9
5.3.4 Parasitic and scattered neutron background . 9
5.3.5 Neutron fluence measurement and monitoring . 10
5.4 Neutron reference radiation fields produced with reactors . 10
5.4.1 General requirements . 10
5.4.2 Production and monitoring . 10
6 Thermal neutron reference radiation fields .10
Annex A (informative) Tabular and graphical representation of the neutron spectra for
radionuclide sources .12
Annex B (normative) Energy distribution of the neutron emission rate for the Cf source .14
Annex C (informative) Characteristics of D O-moderated Cf sources .16
Annex D (informative) Characteristics of Am-Be sources .20
Annex E (informative) Angular source emission rate characteristics of radionuclide
neutron sources .24
Annex F (normative) Conventional thermal‑neutron fluence rate .27
Bibliography .28
iii
ISO 8529-1:2021(E)
Foreword
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This document was prepared by Technical Committee ISO/TC 85, Nuclear energy, nuclear technologies,
and radiological protection, Subcommittee SC 2, Radiation protection.
A list of all the parts in the ISO 8529 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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