1、 IEC/TR 62283Edition 2.0 2010-06TECHNICAL REPORT Optical fibres Guidance for nuclear radiation tests IEC/TR 62283:2010(E)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncont
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10、r contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC/TR 62283Edition 2.0 2010-
11、06TECHNICAL REPORT Optical fibres Guidance for nuclear radiation tests INTERNATIONAL ELECTROTECHNICAL COMMISSION VICS 33.180.10 PRICE CODEISBN 978-2-88912-031-4 Registered trademark of the International Electrotechnical Commission Copyrighted material licensed to BR Demo by Thomson Reuters(Scientifi
12、c),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR 62283 IEC:2010(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Radiation units,dose calculation.7 4 Radiation shielding.9 5 Radiation envir
13、onments and exposure.9 5.1 Natural radioactivity.9 5.2 Nuclear reactors(fission).9 5.3 Fusion reactors.9 5.4 High-energy physics experiments.10 5.5 Space environments.10 5.6 Medicine.10 5.7 Military environments.11 5.8 Industrial environments.11 6 Irradiation facilities and dosimetry.11 6.1 General.
14、11 6.2 Continuous gamma irradiation.12 6.3 Neutron irradiation.12 6.4 Proton irradiation.13 6.5 Electron irradiation.14 6.6 Pulsed irradiation.15 7 Radiation effects on optical fibres.15 8 Radiation-induced transmission loss.16 8.1 Overview.16 8.2 Fibre type.17 8.3 Radiation history.17 8.4 Wavelengt
15、h dependence.17 8.5 Temperature dependence.18 8.6 Light power dependence,photobleaching.19 8.7 Dose rate dependence.21 8.8 Pulsed irradiations.23 8.9 Radiation type dependence.24 8.10 Loss annealing.25 8.11 Conclusions.25 9 Measurement techniques and quality assurance of attenuation measurements.26
16、10 Radiation effects on passive fibre optic components.26 10.1 Connectors.26 10.2 Couplers and multiplexers.27 10.3 Fibre Bragg gratings.27 Bibliography.29 Figure 1 Wavelength dependence of the radiation-induced loss of a Ge-doped graded index fibre(50/125 m).17 Figure 2 Temperature dependence of the radiation-induced loss.19 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permi
