IEC 61468:2000

FOREWORD
1 Scope and object
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Self-powered neutron detectors - General
   characteristics
5 Mechanical structure and characteristics
6 Nuclear and electrical characteristics
7 Application recommendations
   7.1 Fluence rate mapping - core monitoring and
        surveillance
   7.2 Feedback control
   7.3 Core protection
   7.4 Classification
8 Design recommendations
   8.1 Background noise
   8.2 Time response
   8.3 Lifetime
   8.4 Mechanical design and electrical connection
9 Test methods
   9.1 Prototype testing
   9.2 Production tests
10 Detector calibration
   10.1 Absolute calibration
   10.2 Comparison calibration
   10.3 In-core calibration
   10.4 Calibration procedure
   10.5 Recommended calibration periods
Annex A (informative) Self-powered detector principles
      A.1 SPND response mechanisms
          A.1.1 - Beta decay (delayed response)
          A.1.2 - Neutron capture (prompt response)
          A.1.3 - Photoelectric effect (prompt response)
          A.1.4 - Compton effect (prompt response)
      A.2 Nature of SPND response
          A.2.1 - Thermal neutron interactions
          A.2.2 - Gamma interactions
      A.3 Detector burn-up life
      A.4 Self-powered detector operating characteristics
          A.4.1 - Vanadium emitter characteristics
          A.4.2 - Cobalt emitter characteristics
          A.4.3 - Rhodium emitter characteristics
          A.4.4 - Silver emitter characteristics
          A.4.5 - Platinum emitter characteristics
          A.4.6 - Hafnia emitter characteristics
      A.5 Self-powered detector assemblies
          A.5.1 - Light water reactor self-powered
                  detector assemblies
          A.5.2 - Typical heavy water reactor self-powered
                  detector assembly
Annex B (informative) State of the art of SPNDs on Russian
        designed reactors (VVER and RBMK)