IEC_62396-2-2012.pdf

IEC 62396-2 Edition 1.0 2012-09 INTERNATIONAL STANDARD Process management for avionics Atmospheric radiation effects Part 2:Guidelines for single event effects testing for avionics systems IEC 62396-2:2012(E)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC,Geneva,Switzerland 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 IECs 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.IEC Central Office Tel.:+41 22 919 02 11 3,rue de Varemb Fax:+41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland 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.Useful links:IEC publications search-www.iec.ch/searchpub The advanced search enables you 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by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Available on-line and also once a month by email.Electropedia-www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary(IEV)on-line.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:csciec.ch.Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 62396-2 Edition 1.0 2012-09 INTERNATIONAL STANDARD Process management for avionics Atmospheric radiation effects Part 2:Guidelines for single event effects testing for avionics systems INTERNATIONAL ELECTROTECHNICAL COMMISSION W ICS 03.100.50;31.020;49.060 PRICE CODE ISBN 978-2-83220-389-7 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 62396-2 IEC:2012(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 4 Abbreviations used in the document.7 5 Obtaining SEE data.9 5.1 Types of SEE data.9 5.2 Use of existing SEE data.9 5.2.1 General.9 5.2.2 Heavy ion data.9 5.2.3 Neutron and proton data.10 5.2.4 Thermal neutron data.10 5.3 Deciding to perform dedicated SEE tests.10 6 Availability of existing SEE data for avionics applications.11 6.1 Variability of SEE data.11 6.2 Types of existing SEE data that may be used.11 6.2.1 General.11 6.2.2 Sources of data,proprietary versus published data.12 6.2.3 Data based on the use of different sources.13 6.2.4 Ground level versus avionics applications.19 6.3 Sources of existing data.20 7 Considerations for SEE testing.21 7.1 General.21 7.2 Selection of hardware to be tested.22 7.3 Selection of test method.22 7.4 Selection of facility providing energetic particles.23 7.4.1 Radiation sources.23 7.4.2 Spallation neutron source.23 7.4.3 Monoenergetic and quasi-monoenergetic beam sources.24 7.4.4 Thermal neutron sources.25 7.4.5 Whole system and equipment testing.25 8 Converting test results to avionics SEE rates.26 8.1 General.26 8.2 Use of spallation neutron source.27 8.3 Use of SEU cross-section curve over energy.27 8.4 Measured SEU rates for different accelerator based neutron sources.30 8.5 Influence of upper neutron energy on the accuracy of calculated SEE rates;verification and compensation.30 Annex A(informative)Sources of SEE data published before 2000.32 Bibliography.33 Figure 1 Comparison of Los Alamos,TRIUMF and ANITA neutron spectra with terrestrial/avioni