Abstract
An empirical expression for the full energy peak efficiency (ε) in terms of the gamma-ray energy (E) and the vertical distance from the detector surface (z) (i.e.,ε=ε(z,E)) has been obtained for an N-type high purity germanium (HPGE) detector using an extended mixed standard radionuclide solution. Comparison of the calculated efficiencies and the experimentally measured values for the energy range of 59.5–1332.5 keV and a source-to-detector distance of 1.2–7.2 cm showed that the theoretical values agree with that of the experiment within 1.5–3.7% standard deviations. This shows a good agreement between the theory and the experiment.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
D. D. Hoppes, J. M. R. Hutchinson, P. T. Schima, M. P. Unterweger, NBS Spec. Publ. No. 626, 1982, p. 85.
F. K. Glenn, Radiation Detection and Measurements, 2nd ed., John Wiley and Sons, 1988.
V. Vnatomwicz, Handbook of Nuclear Data for Neutron Activation Analysis, Vol. 1, Nuclear Information Centre, Czechoslovak Atomic Energy Commission Prague, 1986, p. 81.
Nuclear Analysis Software, Part 2. Gamma Spectrum Analysis, Activity Calculations and Neutron Activation Analysis (GANAAS), IAEA, Vienna, 1991.
Wang Liyu, IAE/SPAN V5.1 Multipurpose Gamma-Ray Sprectrum Analysis Software, China Institute of Atomic Energy, Beijing, 1995.
L. Weilopolski, Nucl. Instr. Meth., 143 (1977) 577.
D. E. Nix, N. E. Scott, Detection Efficiency Calibration for Radiological Monitoring of Nuclear Plants, Radioelement Analysis: Progress and Problems Proc. of the 23rd Conf. on Analytical Chemistry in Energy and Technology, Gatlinburg, Tennessee, 1976.
C. G. Sanderson, Comparison of Ge(Li) Well and N-Type Coaxial Detectors for Low-Energy Gamma-Ray Analysis of Environmental Samples, Radioloelement Analysis: Progress and Problems, Proc. 23rd Conf. on Analytical Chemistry in Energy and Technology, Gatlinburg, Tennessee, 1976.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Osae, E.K., Nyarko, B.J.B., Serfor-Armah, Y. et al. An empirical expression for the full energy peak efficiency of an N-type high purity germanium detector. J Radioanal Nucl Chem 242, 617–622 (1999). https://doi.org/10.1007/BF02347370
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02347370