SIST EN ISO 6980-2:2025
(Main)Nuclear energy - Reference beta-particle radiation - Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field (ISO 6980-2:2023)
Nuclear energy - Reference beta-particle radiation - Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field (ISO 6980-2:2023)
This document specifies methods for the measurement of the absorbed-dose rate in a tissue-equivalent slab phantom in the ISO 6980 reference beta-particle radiation fields. The energy range of the beta-particle-emitting isotopes covered by these reference radiations is 0,22 MeV to 3,6 MeV maximum beta energy corresponding to 0,07 MeV to 1,2 MeV mean beta energy. Radiation energies outside this range are beyond the scope of this document. While measurements in a reference geometry (depth of 0,07 mm or 3 mm at perpendicular incidence in a tissue‑equivalent slab phantom) with an extrapolation chamber used as primary standard are dealt with in detail, the use of other measurement systems and measurements in other geometries are also described, although in less detail. However, as noted in ICRU 56, the ambient dose equivalent, H*(10), used for area monitoring, and the personal dose equivalent, Hp(10), as used for individual monitoring, of strongly penetrating radiation, are not appropriate quantities for any beta radiation, even that which penetrates 10 mm of tissue (Emax > 2 MeV).
This document is intended for those organizations wishing to establish primary dosimetry capabilities for beta particles and serves as a guide to the performance of dosimetry with an extrapolation chamber used as primary standard for beta‑particle dosimetry in other fields. Guidance is also provided on the statement of measurement uncertainties.
Kernenergie - Beta-Referenzstrahlung - Teil 2: Kalibriergrundlagen für Basisgrößen, die das Strahlungsfeld charakterisieren (ISO 6980-2:2023, einschließlich korrigierte Fassung 2024-03)
Énergie nucléaire - Rayonnement bêta de référence - Partie 2: Concepts d'étalonnage en relation avec les grandeurs fondamentales caractérisant le champ de rayonnement (ISO 6980-2:2023)
Le présent document spécifie les méthodes de mesurage du débit de dose absorbée dans un fantôme-plaque en matériau équivalent tissu dans les champs de rayonnement bêta de référence traités dans la série ISO 6980. La plage d’énergie des isotopes émetteurs de particules bêta couverte par ces rayonnements de référence est comprise entre 0,22 MeV et 3,6 MeV en énergie bêta maximale, soit 0,07 MeV à 1,2 MeV en énergie bêta moyenne. Les énergies de rayonnement situées hors de cette plage ne relèvent pas du domaine d’application du présent document. Alors que les mesures dans une géométrie de référence (profondeur de 0,07 mm ou de 3 mm à une incidence perpendiculaire dans un fantôme-plaque équivalent aux tissus) avec une chambre à extrapolation en tant qu’étalon primaire sont traitées en détail, l’utilisation d’autres systèmes de mesure et la réalisation de mesures dans d’autres géométries sont également décrites, mais de façon moins détaillée. Comme le souligne toutefois le rapport ICRU 56 de l'ICRU (de l’anglais «International Commission on Radiation Units and Measurements», Commission internationale des unités et mesures radiologiques), l’équivalent de dose ambiant, H*(10), et l’équivalent de dose individuel, Hp(10), utilisés respectivement pour la surveillance de zone et pour la surveillance individuelle dans le cas de rayonnements fortement pénétrants ne sont pas des grandeurs appropriées pour un rayonnement bêta, même pour un rayonnement capable de traverser une épaisseur de tissu de 10 mm (Emax > 2 MeV).
Le présent document est destiné aux organisations qui souhaitent développer des compétences en dosimétrie primaire pour les particules bêta et il constitue un guide pour la dosimétrie avec chambre à extrapolation en tant qu’étalon primaire s’appliquant à la dosimétrie des particules bêta dans d’autres domaines. Des recommandations relatives à l’expression des incertitudes de mesure sont également fournies.
Jedrska energija - Referenčno sevanje delcev beta - 2. del: Osnove kalibracije, povezane z osnovnimi veličinami, ki označujejo polje sevanja (ISO 6980-2:2023)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2025
Jedrska energija - Referenčno sevanje delcev beta - 2. del: Osnove kalibracije,
povezane z osnovnimi veličinami, ki označujejo polje sevanja (ISO 6980-2:2023)
Nuclear energy - Reference beta-particle radiation - Part 2: Calibration fundamentals
related to basic quantities characterizing the radiation field (ISO 6980-2:2023)
Kernenergie - Beta-Referenzstrahlung - Teil 2: Kalibriergrundlagen für Basisgrößen, die
das Strahlungsfeld charakterisieren (ISO 6980-2:2023, einschließlich korrigierte Fassung
2024-03)
Énergie nucléaire - Rayonnement bêta de référence - Partie 2: Concepts d'étalonnage
en relation avec les grandeurs fondamentales caractérisant le champ de rayonnement
(ISO 6980-2:2023)
Ta slovenski standard je istoveten z: EN ISO 6980-2:2025
ICS:
17.240 Merjenje sevanja Radiation measurements
27.120.01 Jedrska energija na splošno Nuclear energy in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6980-2
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2025
EUROPÄISCHE NORM
ICS 17.240
English Version
Nuclear energy - Reference beta-particle radiation - Part 2:
Calibration fundamentals related to basic quantities
characterizing the radiation field (ISO 6980-2:2023,
including corrected version 2024-03)
Énergie nucléaire - Rayonnement bêta de référence - Kernenergie - Beta-Referenzstrahlung - Teil 2:
Partie 2: Concepts d'étalonnage en relation avec les Kalibriergrundlagen für Basisgrößen, die das
grandeurs fondamentales caractérisant le champ de Strahlungsfeld charakterisieren (ISO 6980-2:2023,
rayonnement (ISO 6980-2:2023, y compris version einschließlich korrigierte Fassung 2024-03)
corrigée 2024-03)
This European Standard was approved by CEN on 22 September 2025.
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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6980-2:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 6980-2:2023 including corrected version 2024-03 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 6980-2:2025 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 March 2026, and conflicting national standards shall
be withdrawn at the latest by March 2026.
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 6980-2:2023, including corrected version 2024-03 has been approved by CEN as
International
Standard
ISO 6980-2
Third edition
Nuclear energy — Reference beta-
2023-11
particle radiation —
Corrected version
Part 2:
2024-03
Calibration fundamentals related to
basic quantities characterizing the
radiation field
Énergie nucléaire — Rayonnement bêta de référence —
Partie 2: Concepts d'étalonnage en relation avec les grandeurs
fondamentales caractérisant le champ de rayonnement
Reference number
ISO 6980-2:2023(en) © ISO 2023
ISO 6980-2:2023(en)
© ISO 2023
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 6980-2:2023(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms and reference and standard test conditions . 3
5 Calibration and traceability of reference radiation fields . 6
6 General principles for calibration of beta‑particle radiation fields . 6
6.1 General .6
6.2 Scaling to derive equivalent thicknesses of various materials .6
6.3 Characterization of the radiation field in terms of penetrability.7
7 Calibration procedures using an extrapolation chamber . 8
7.1 General .8
7.2 Determination of the reference beta-particle absorbed-dose rate .8
8 Calibration with ionization chambers .10
9 Measurements at non-perpendicular incidence . 10
10 Uncertainties . 10
Annex A (normative) Reference conditions and standard test conditions . 19
Annex B (informative) Extrapolation chamber measurements .21
Annex C (informative) Extrapolation chamber measurement correction factors .25
Annex D (informative) Example of an uncertainty analysis .37
Bibliography . 41
iii
ISO 6980-2:2023(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 85, Nuclear energy, nuclear technologies, and
radiological protection, Subcommittee SC 2, Radiological protection.
This third edition of ISO 6980-2 cancels and replaces ISO 6980-2:2022, of which it constitutes a minor
revision.
The main changes are as follows:
— editorial changes throughout the document.
A list of all the parts in the ISO 6980 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
complete listing of these bodies can be found at www.iso.org/members.html.
This corrected version of ISO 6980-2:2023 incorporates the following corrections:
— several wrong values have been corrected in Table C.7.
iv
ISO 6980-2:2023(en)
Introduction
ISO 6980 series covers the production, calibration, and use of reference beta-particle radiation fields for
the calibration of dosemeters and dose-rate meters for protection purposes. This document describes the
procedures for the determination of absorbed dose rate to a reference depth of tissue from reference beta
particle radiation fields. ISO 6980-1 describes methods of production and characterization of the reference
radiation. ISO 6980-3 describes procedures for the calibration of dosemeters and dose-rate m
...
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