Abstract
ABSTRACTTo determine the activity of radioactive sources, accurate efficiencies are always required since the data provided by the manufacturer for detector model is insufficient to calculate the efficiencies value and obtained strong discrepancies between simulated and experimental results, especially for low photon energies. For this purpose, a detailed detector model was developed to simulate the total and full energy peak efficiencies of a p-type coaxial High Purity Germanium (HPGe) detector using GEANT4. In the simulation, gamma aqueous sources containing several radionuclides were used, covering the energy range from 59.50 to 1836.01 keV. In the case of extended sources, the coincidence summing correction factors () for two nuclides () were calculated from the peak () and total efficiencies () at 15 points throughout the source volume obtained with GEANT4. A modified detector model including the summing effect, the simulated full energy peak efficiencies agreed with the experimental values within 1%, except for the high energy range where they are less than 2% between 122 and 1836 keV for the small extended source volume.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
