IEC 60515 : 2.0

NUCLEAR POWER PLANTS - INSTRUMENTATION IMPORTANT TO SAFETY - RADIATION DETECTORS - CHARACTERISTICS AND TEST METHODS

International Electrotechnical Committee

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FOREWORD INTRODUCTION 1 Scope 2 Normative references 3 Terms and definitions 4 Abbreviations 5 Functions of an ex-core detection system 6 Neutron sensitive materials 7 Description of different types of detectors    7.1 General    7.2 Neutron sensitive proportional counters    7.3 Ionization chambers 8 More detailed factors which influence the use and testing    of neutron detectors    8.1 Pulse mode neutron detectors    8.2 Current mode neutron detectors 9 General principles for detector operation    9.1 Detection basis conditions    9.2 Detector operating conditions    9.3 Limits due to the detector    9.4 Limits due to the measuring channel    9.5 Limits due to surrounding gamma radiation 10 Connectors and cables 11 Characteristics of detectors including their cables    and connectors    11.1 General    11.2 Detector mechanical data    11.3 Detector electrical and nuclear data    11.4 Connector mechanical data    11.5 Connector electrical characteristics    11.6 Cable mechanical data    11.7 Cable electrical characteristics 12 Test methods - general 13 Factory tests    13.1 General    13.2 List of typical factory tests    13.3 Mechanical tests    13.4 Specific tests for fission counters    13.5 Specific tests for proportional counter tubes    13.6 Specific tests for compensated ionization chambers    13.7 Specific tests for uncompensated neutron sensitive         d.c. ionization chambers    13.8 Specific tests for d.c. ionization chambers for         gamma radiation    13.9 Specific test for current fluctuation (Campbelling)         fission chambers 14 Qualification tests    14.1 Principles    14.2 Test sequence on a detector    14.3 Test for environmental conditions    14.4 Seismic tests Bibliography

Abstract

Applies to the radiation detectors which are installed external to the core of nuclear reactors and which provide electrical input signals to the reactor's control and instrumentation system.