Evaluation of the Efficiency of Gamma Spectrometers for Measuring Volumetric Samples

A new concept was proposed to calibrate gamma spectrometers for measuring the activity of volumetric samples. The concept used a formula that was developed to give a correction factor to the detector efficiency when the detector was calibrated with a point source. The concept gave efficiency curves...

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Bibliographic Details
Published in:Nuclear science and engineering 2004-06, Vol.147 (2), p.185-188
Main Authors: Mohamed, Nader M. A., Mandour, M. Abou
Format: Article
Language:English
Subjects:
DIAGRAMS
EFFICIENCY
EVALUATION
Exact sciences and technology
Experimental methods and instrumentation for elementary-particle and nuclear physics
GAMMA SPECTROMETERS
GAMMA TRANSPORT THEORY
HIGH-PURITY GE DETECTORS
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Nuclear physics
NUCLEAR PHYSICS AND RADIATION PHYSICS
Physics
POINT SOURCES
Radiation detectors, dosimeters
RADIATION TRANSPORT
Solid-state detectors
Spectrometers and spectroscopic techniques
X- and γ-ray instruments and techniques
X- and γ-ray spectrometers
X- and γ-ray spectroscopy
X-ray and γ-ray spectrometers
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Summary:A new concept was proposed to calibrate gamma spectrometers for measuring the activity of volumetric samples. The concept used a formula that was developed to give a correction factor to the detector efficiency when the detector was calibrated with a point source. The concept gave efficiency curves for an HPGe detector. The results obtained by the concept yielded deviations between 0.5 to 5% from the experimental data. The concept needs only the availability of the MCNP code or similar gamma transport codes.
ISSN:0029-5639
1943-748X
DOI:10.13182/NSE04-A2428