IEEE/ANSI N42.14-1999
Current
The latest, up-to-date edition.
American National Standard for Calibration and Use of Germanium Spectrometers for the Measurement of Gamma-Ray Emission Rates of Radionuclides
Hardcopy , PDF
English
01-06-1999
1 Overview
1.1 Scope
1.2 Purpose
2 References
3 Definitions
4 Installation of instrumentation
5 Calibration procedures
5.1 Energy calibration
5.2 Efficiency calibration
6 Gamma-ray measurements with Ge spectrometers
6.1 Peak-finding algorithm
6.2 Peak position and area measurement
6.3 Measurement of gamma-ray energies
6.4 Subtraction of background peaks
6.5 Measurement of gamma-ray emission rates
6.6 Calculation of nuclide activities
7 Performance tests of the spectrometry system
7.1 MCA clocks
7.2 DC offset and pole-zero settings
7.3 Energy calibration
7.4 System efficiency
7.5 System resolution
8 Verification of the analysis process
8.1 Test of automatic peak-finding algorithm
8.2 Test of independence of peak-area from the
gross peak-height-to-baseline-height ratio
8.3 Test of the double-peak finding and fitting
algorithms
8.4 Pulse pileup (random summing)
8.5 Assessment of the magnitude of coincidence
summing
8.6 Bias in the relative full-energy peak efficiency
8.7 Accuracy of the full-energy peak efficiency
8.8 Radionuclide identification
8.9 Identification through multipeak analysis and
correction for interference from other
radionuclides
9 Uncertainties and propagation of uncertainty
Annex A (informative) Bibliography
Annex B (informative) Procedures for characterization
of a Ge gamma-ray spectrometer
Annex C (informative) Measurement of peak position,
net area, and their uncertainties
Annex D (informative) Equations for the correction of
coincidence gamma-ray summing
Annex E (informative) Construction of shields for Ge
spectrometers
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