IEC 60808 : 1.0

COMPLEMENTARY INSTRUMENTATION FOR COUNTING RATEMETERS. CHARACTERISTICS AND TEST METHODS

International Electrotechnical Committee

More details

More info

FOREWORD
PREFACE
SECTION ONE - GENERAL
Clause
1 Scope
2 Object
SECTION TWO - TERMINOLOGY
3 Sub-assemblies
4 Miscellaneous
SECTION THREE - GENERAL TEST CONDITIONS
5 Reference conditions and rated range of use
6 Arbitration measurements
7 Warm-up time
8 Miscellaneous
9 Preliminary settings
10 General arrangement for tests
SECTION FOUR - BIASED TRIPS
11 General
12 Logic states
13 Range of operation
14 Error
15 Response time
16 Hysteresis
17 Drift
18 Interaction between trips
19 Variations under the influence of temperature
20 Variations under the influence of mains voltage
21 Variations under the influence of mains frequency
22 Variations under the influence of load
SECTION FIVE - HIGH-VOLTAGE POWER SUPPLIES FOR DETECTORS
23 General
24 Power supply for boron ionization chambers
25 Power supply for fission chambers
26 Power supply for BF3, B10 coated or He3 counter tubes
27 Power supply for Geiger-Muller counter tubes
28 Power supply for photomultipliers (or scintillation
counters)
29 Power supply for semiconductor detectors
30 Power supply for miscellaneous ionization chambers
SECTION SIX - DOUBLE TIME-CONSTANT ELEMENT
31 General
32 Tests
SECTION SEVEN - ANALOGUE ELECTRICAL ISOLATOR
33 General
34 Input voltage
35 Insulation
36 Output voltage
37 Noise
38 Recorder output
39 Zero setting
40 Gain setting
41 Linearity error
42 Response time
43 Rejection factor
44 Miscellaneous
SECTION EIGHT - AUXILIARY CIRCUITS
45 Calibration voltages
46 Instrument zero setting
47 Proper functioning check
48 Associated functions
SECTION NINE - INTERFERENCE TESTS AND PROTECTION
49 Electromagnetic noise susceptibility
50 Interference production
51 Protection measures
SECTION TEN - ENVIRONMENTAL AND PHYSICAL TESTS
52 Environmental testing procedures
53 Qualitative test with a radioactive source
SECTION ELEVEN - RELIABILITY AND MAINTAINABILITY
54 Reliability
55 Burn-in
56 Maintainability
APPENDIX A - List of abbreviations
APPENDIX B - Lossy integrator response for time variable
input pulse rate
APPENDIX C - Response time

Abstract

Applies to the principal sub-assemblies or function elements used with analogue or digital ratemeters to form systems for rate measurement. These systems are used in nuclear instrumentation for the continuous measurement of the counting rates of random pulses in the range of 0.1 to 10[6] c s[-1] produced by detectors such as counter tubes or fission ionization chambers. The sub-assemblies considered are: analogue biased trigger circuits, HV power supplies for detectors, analogue electrical isolators, double time constant filters and auxiliary circuits (an example of a rate measuring system is shown in Figure 1, page 13).