FOREWORD
INTRODUCTION
Clause
1 Scope and object
2 Normative references
3 Definitions and symbols
3.1 Special word usage
3.2 Definitions
3.3 Symbols
4 Installation of instrumentation
5 Peak analysis and calibration procedures
5.1 Peak-finding algorithm
5.2 Peak position and area measurement
5.3 Energy calibration
5.4 Efficiency calibration measurement
5.4.1 Standardization for specific radionuclides
5.4.2 Detector efficiency as a function of
energy
5.4.3 Efficiency function or look-up table
6 Gamma-ray measurements with Ge spectrometers
6.1 Measurement of gamma-ray energies
6.2 Measurement of gamma-ray emission rates and
radionuclides activities
6.2.1 Subtraction of interference peaks in the
background
6.2.2 Radioactive decay
6.2.3 Pulse pile-up (random summing)
6.2.4 Cascade (coincidence summing)
6.2.5 Attenuation corrections
7 Performance tests of the spectrometry system
7.1 Multichannel-analyzer clocks
7.2 D.C. offset and pole-zero settings
7.3 Energy calibration
7.4 System efficiency and resolution
7.5 Pulse pile-up (random summing)
8 Performance tests of the analysis software
8.1 Test of automatic peak-finding algorithm
8.2 Test of independence of peak-area from the gross
peak-height to continuum-height ratio
8.3 Test of the doublet-peak finding and fitting
algorithms
9 Verification of the entire analysis process
9.1 Assessment of the magnitude of cascade summing
9.2 Absolute error in the relative full-energy-peak
efficiency
9.3 Accuracy of the full-energy-peak efficiency
10 Radionuclide identification
11 Uncertainties and uncertainty propagation
Annexes
A Procedures for characterization of a Ge gamma-ray
spectrometer
B Measurement of peak position, net area and their
uncertainties
C Equations for the correction of cascade gamma-ray
summing
D Construction of shields for Ge spectrometers
E Bibliography
Tables
Figures