IEC 61005 Edition 3 0 2014 07 INTERNATIONAL STANDARD NORME INTERNATIONALE Radiation protection instrumentation – Neutron ambient dose equivalent (rate) meters Instrumentation pour la radioprotection –[.]
® Edition 3.0 2014-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Radiation protection instrumentation – Neutron ambient dose equivalent (rate) meters IEC 61005:2014-07(en-fr) Instrumentation pour la radioprotection – Appareils de mesure de l'équivalent de dose ambiant neutron (ou de son débit d'équivalent de dose) Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe IEC 61005 All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information Droits de reproduction réservés Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur Si vous avez des questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence IEC Central Office 3, rue de Varembé CH-1211 Geneva 20 Switzerland Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 info@iec.ch www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies About IEC publications The technical content of IEC publications is kept under constant review by the IEC Please make sure that you have the latest edition, a corrigenda or an amendment might have been published IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents Available for PC, Mac OS, Android Tablets and iPad Electropedia - www.electropedia.org The world's leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 14 additional languages Also known as the International Electrotechnical Vocabulary (IEV) online IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,…) It also gives information on projects, replaced and withdrawn publications IEC Glossary - std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002 Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications Just Published details all new publications released Available online and also once a month by email IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csc@iec.ch A propos de l'IEC La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait l'électricité, l'électronique et aux technologies apparentées A propos des publications IEC Le contenu technique des publications IEC est constamment revu Veuillez vous assurer que vous possédez l’édition la plus récente, un corrigendum ou amendement peut avoir été publié Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spécifications techniques, Rapports techniques et autres documents de l'IEC Disponible pour PC, Mac OS, tablettes Android et iPad Recherche de publications IEC - www.iec.ch/searchpub La recherche avancée permet de trouver des publications IEC en utilisant différents critères (numéro de référence, texte, comité d’études,…) Elle donne aussi des informations sur les projets et les publications remplacées ou retirées IEC Just Published - webstore.iec.ch/justpublished Restez informé sur les nouvelles publications IEC Just Published détaille les nouvelles publications parues Disponible en ligne et aussi une fois par mois par email Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes électroniques et électriques Il contient plus de 30 000 termes et définitions en anglais et en franỗais, ainsi que les termes ộquivalents dans 14 langues additionnelles Egalement appelé Vocabulaire Electrotechnique International (IEV) en ligne Glossaire IEC - std.iec.ch/glossary Plus de 55 000 entrộes terminologiques ộlectrotechniques, en anglais et en franỗais, extraites des articles Termes et Définitions des publications IEC parues depuis 2002 Plus certaines entrées antérieures extraites des publications des CE 37, 77, 86 et CISPR de l'IEC Service Clients - webstore.iec.ch/csc Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csc@iec.ch Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright â 2014 IEC, Geneva, Switzerland đ Edition 3.0 2014-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Radiation protection instrumentation – Neutron ambient dose equivalent (rate) meters Instrumentation pour la radioprotection – Appareils de mesure de l'équivalent de dose ambiant neutron (ou de son débit d'équivalent de dose) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE PRICE CODE CODE PRIX ICS 13.280 XA ISBN 978-2-8322-1676-7 Warning! Make sure that you obtained this publication from an authorized distributor Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé ® Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe IEC 61005 IEC 61005:2014 © IEC 2014 CONTENTS FOREWORD Scope Normative references Terms and definitions, abbreviations and symbols, quantities and units 3.1 Terms and definitions 3.2 Test nomenclature 15 3.3 Abbreviations and symbols 15 3.4 Quantities and units 16 General test procedure 16 4.1 Test requirements 16 4.2 Tests performed with variation of influence quantities 16 4.2.1 General 16 4.2.2 Tests for influence quantities of type F 16 4.2.3 Tests for influence quantities of type S 17 Consideration of non-linearity 17 4.3 4.4 Consideration of several detectors or signals in a dose (rate) meter 17 4.5 Statistical fluctuations 17 4.6 Radiation sources 17 4.7 Work place neutron fields 18 General requirements 18 5.1 Summary of requirements 18 5.2 General characteristics 18 5.2.1 Effective range of measurement 18 5.2.2 Minimum range of measurement 19 5.2.3 Rated range of an influence quantity 19 5.2.4 Minimum rated range of influence quantity 19 5.2.5 Indication of the assembly 19 Mechanical characteristics 19 5.3 5.3.1 IP classification 19 5.3.2 Assembly labels and markings 19 5.3.3 Ease of decontamination 20 Interface requirements 20 5.4 5.5 Algorithm to evaluate the indicated value 20 Radiation detection requirements 20 6.1 6.2 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6 6.3.7 6.4 General 20 Consideration of the uncertainty of the conventional quantity value 20 Constancy of the dose rate response, dose dependence and statistical fluctuations 20 General 20 Requirements 21 Test method using sources 21 Interpretation of the results of the test using sources 21 Test procedure with variation of the calibration distance 21 Equivalent electrical test method 22 Interpretation of the equivalent electrical test results 22 Variation of the response due to neutron energy 22 Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe –2– –3– 6.4.1 General 22 6.4.2 Requirements 23 6.4.3 Test method 23 6.4.4 Interpretation of the results 24 Monte Carlo calculation of the instrument response 24 6.5 6.5.1 General 24 6.5.2 Requirements 24 6.5.3 Test method 24 6.5.4 Interpretation of the results 24 Variation of the response due to angle of incidence 25 6.6 6.6.1 General 25 6.6.2 Requirements 25 6.6.3 Test method 25 6.6.4 Interpretation of the results 25 Overload characteristics 25 6.7 6.7.1 Dose equivalent meters 25 6.7.2 Dose rate equivalent meters 26 Response time 26 6.8 6.8.1 Requirements 26 6.8.2 Test method 27 6.8.3 Interpretation of the results 27 Relationship between response time and statistical fluctuations 27 6.9 6.10 Dose equivalent rate alarm 28 6.10.1 Requirements 28 6.10.2 Test method 28 6.10.3 Interpretation of the results 28 6.11 Dose equivalent alarm 28 6.11.1 Requirements 28 6.11.2 Test method 28 6.11.3 Interpretation of the results 28 6.12 Response to photon radiation 29 6.12.1 Requirements 29 6.12.2 Test method 29 6.12.3 Interpretation of the results 29 6.13 Response to other external ionizing radiations 29 Additivity of indicated value 30 7.1 Requirements 30 7.2 Test method 30 7.3 Interpretation of the results 30 Software 31 8.1 General 31 8.2 Requirements 31 8.2.1 General requirements 31 8.2.2 Design and structure of the software 31 8.2.3 Protection of the software and data 31 8.2.4 Documentation 32 Test method 32 8.3 8.3.1 General 32 8.3.2 Testing the documentation 32 Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe IEC 61005:2014 © IEC 2014 IEC 61005:2014 © IEC 2014 Electrical characteristics 33 9.1 Stability of zero indication with time 33 9.1.1 Requirements 33 9.1.2 Test method 33 9.1.3 Interpretation of the results 33 Warm-up time 33 9.2 9.2.1 Requirements 33 9.2.2 Test method 33 9.2.3 Interpretation of the results 33 Power supplies – battery operation 33 9.3 9.3.1 General 33 9.3.2 Requirements 34 9.3.3 Test method 34 Power supplies – Mains operations 35 9.4 9.4.1 Requirements 35 9.4.2 Test method 35 9.4.3 Interpretation of the results 36 10 Environmental requirements 36 10.1 General 36 10.2 Ambient temperature 36 10.3 Temperature shock 36 10.4 Relative humidity 37 10.5 Atmospheric pressure 37 10.6 Protection against moisture and dust (IP classification) 37 10.7 Storage and transport 37 11 Mechanical requirements 37 11.1 General 37 11.2 Drop test 38 11.3 Vibration test 38 11.4 Microphonics impact 38 11.5 Mechanical shock 38 12 Electromagnetic requirements 39 12.1 General 39 12.2 Emission of electromagnetic radiation 39 12.3 Electrostatic discharge 39 12.4 Radio frequency disturbance 39 12.5 Magnetic fields 39 12.6 Alternating current powered equipment requirements 40 13 Documentation 40 13.1 Operation and maintenance manual 40 13.2 Identification certificate 40 13.3 Type test report 41 Annex A (informative) Neutron fluence-to-ambient dose equivalent conversion coefficients 47 Bibliography 50 Figure A.1 – Neutron fluence-to-ambient dose equivalent conversion coefficients for mono-energetic neutrons [5] 48 Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe –4– –5– Table – Reference conditions and standard test conditions 41 Table – Radiation characteristics of ambient neutron dose (rate) equivalent meters 42 Table – Values of c and c for w different dose rate values and n indications for each dose rate value [8] 43 Table – Electrical and environmental characteristics of ambient dose equivalent (rate) meters 44 Table – Maximum values of deviation due to mechanical requirements 44 Table – Maximum values of deviation due to electromagnetic disturbances 45 Table – Emission frequency range 45 Table – Symbols and abbreviations used in this standard 46 Table A.1 – Neutron fluence-to-ambient dose equivalent conversion coefficients for mono-energetic neutrons ([5],[6]) 47 Table A.2 – Neutron fluence-to-ambient dose equivalent conversion coefficients for the neutron reference radiation sources ([5] and ISO 8529-3) 49 Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe IEC 61005:2014 © IEC 2014 IEC 61005:2014 © IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION RADIATION PROTECTION INSTRUMENTATION – NEUTRON AMBIENT DOSE EQUIVALENT (RATE) METERS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees) The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”) Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter 5) IEC itself does not provide any attestation of conformity Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity IEC is not responsible for any services carried out by independent certification bodies 6) All users should ensure that they have the latest edition of this publication 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications 8) Attention is drawn to the Normative references cited in this publication Use of the referenced publications is indispensable for the correct application of this publication 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights IEC shall not be held responsible for identifying any or all such patent rights International Standard 61005 has been prepared by subcommittee 45B: Radiation protection instrumentation, of IEC technical committee 45: Nuclear instrumentation This third edition cancels and replaces the second edition of IEC 61005 issued in 2003 and constitutes a technical revision This edition includes the following significant technical changes with respect to the previous edition: a) upper neutron energy of the instruments covered by the standard is increased to 20 MeV; b) requirement for the variation of the relative response due to neutron energy is modified; c) a clause for additivity of the indicated value (neutron dose/dose rate) is introduced; d) a clause and requirement for Monte Carlo calculation of the instrument response are introduced; e) a clause and requirement for the software for generation of the measured values are introduced; f) environmental testing methods and requirements are referred to IEC 62706; Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe –6– –7– g) influence quantities of type S and F are introduced The text of this standard is based on the following documents: FDIS Report on voting 45B/792/FDIS 45B/797/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table This publication has been drafted in accordance with the ISO/IEC Directives, Part The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication At this date, the publication will be • reconfirmed, • withdrawn, • replaced by a revised edition, or • amended Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe IEC 61005:2014 © IEC 2014 IEC 61005:2014 © IEC 2014 RADIATION PROTECTION INSTRUMENTATION – NEUTRON AMBIENT DOSE EQUIVALENT (RATE) METERS Scope This International Standard is applicable to assemblies designed to measure the ambient dose equivalent (rate) due to neutron radiation in fields that contain neutrons with energies below 20 MeV, and which comprise at least: a) a detection assembly, which may, for example, consist of a detector probe for thermal neutrons and an arrangement of neutron moderating and absorbing media surrounding the detector; b) a measuring assembly with a display for the measured quantity, which may be incorporated into a single assembly with the detector or connected to it by means of a flexible cable Instruments with energy range up to 20 MeV are covered by this standard If the instrument also provides indication of the neutron dose, it should meet the neutron dose requirements stated in this standard No tests are specified in this standard for performance requirements of assemblies in pulsed radiation fields It is understood that an assembly designed to meet this standard may not be suitable for use in such fields The object of this standard is to specify requirements for the performance characteristics of neutron ambient dose equivalent (rate) meters, and to prescribe the methods of testing in order to determine compliance with this standard This standard specifies general characteristics, general test procedures, radiation characteristics, electrical, mechanical, safety and environmental characteristics, and also the identification certificate (see 13.2) Requirements and test procedures are also specified for the alarm performance of the neutron ambient dose equivalent (rate) meters, equipped with alarm provisions NOTE The response of ambient dose equivalent (rate) meters for neutrons is energy dependent and may deviate considerably from unity The response in realistic neutron fields, however, is such that the response deviations in different energy ranges tend to offset each other Consequently, the response in realistic fields is generally much closer to unity ISO 12789 specifies a list of appropriate broad-spectrum neutron sources that are suitable for the testing of such (rate) meters For example, simulated workplace neutron fields from ISO 12789 may be specified by agreement between manufacturer and purchaser to be appropriate for testing when the spectral environment is well defined Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies IEC 60050 (all parts): International http://www.electropedia.org) Electrotechnical Vocabulary (available IEC 60086-1:2011, Primary batteries – Part 1: General IEC 60086-2:2011, Primary batteries – Part 2: Physical and electrical specifications at Copyrighted material licensed to BR Demo by Thomson Reuters (Scientific), Inc., subscriptions.techstreet.com, downloaded on Nov-27-2014 by James Madison No further reproduction or distribution is permitted Uncontrolled when printe –8–