k0-IAEA determination of full energy peak efficiency for a high purity germanium detector

The k0-IAEA software was used to determine full peak energy efficiency of a High Purity Germanium (HPGe) co-axial detector within the energy range of 121.8 2204.5keV and geometries of 17cm, 15cm and 2cm. The experimentally (direct technique) determination of the efficiency of the co-axial detector was within the energy range of 59.54 2204.5keV. Plotted ratios of the k0-IAEA derived efficiency over the k0-fitted FEPE values showed slight oscillations at certain energies attributed to the characteristics of the detector while the results of the ratio of k0-IAEA FEPE measurement over the experimentally derived efficiency obtained yielded inconsequential oscillations at certain energy around the unity mark. These deviations of 0.1 to 6% for the three geometries measured from the k0-IAEA experimental data agreed to the accurate and large acceptance of the software for analysis.