IEC 62089:2001

FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Interpretations, definitions, acronyms and symbols
   3.1 Interpretations
   3.2 Definitions and acronyms
   3.3 Symbols
4 Sources
   4.1 Reference sources
   4.2 Efficiency calibration sources
   4.3 Checking sources
       4.3.1 Quality assurance checking sources
       4.3.2 Performance checking sources
5 Plateau measurement and system settings
   5.1 Plateau measurement
   5.2 Discriminator settings
       5.2.1 General
       5.2.2 Pulse height discrimination settings (PHD method)
       5.2.3 Rise-time discrimination settings (RTD method)
6 Calibration
   6.1 General
   6.2 Efficiency
   6.3 Efficiency corrections
7 Background
8 Performance tests
   8.1 General
   8.2 System repeatability
   8.3 System efficiency
   8.4 Verification of long-time counter background
   8.5 Verification of alpha, beta, and guard plateau
       bias points
   8.6 Verification of crosstalk
   8.7 Effectiveness of guard detector
   8.8 Verification of alpha and beta efficiency
   8.9 General considerations in measuring alpha/beta
       emission rates
9 Determination of uncertainties and their propagation
   9.1 General
   9.2 Specific uncertainties to alpha/beta gas proportional
       counters
10 Quality control and assurance
Annex A (informative) Preparation of working standards from
        standard solutions
Annex B (informative) Guidance on measurement of samples
Bibliography