2021/03/31 by Mohamed Elsafi, Jamila S. Alzahrani, Mahmoud I. Abbas +5 · 1 citation
Medicine · Physics and Astronomy · #Nuclear Physics and Applications #Radiation Detection and Scintillator Technologies #Radiation Therapy and Dosimetry
paper · doi:10.1080/00295639.2021.1895406
crossref issued 2021/03/31 · crossref published 2021/03/31 · crossref published-online 2021/03/31 · openalex publication_date 2021/03/31 · crossref created 2021/03/31 · crossref published-print 2021/09/02 · crossref deposited 2021/10/07 · openalex created_date 2025/10/10 · crossref indexed 2026/08/04 · openalex updated_date 2026/08/04
The optimization of measurement of environmental samples is achieved by putting the sample closer to the detector to increase the full-energy peak efficiency, which leads to decrease of the detection limit. The present work inspects the utilization of Geant4 simulation for a NaI cubic scintillation detector with a cavity using two tracks. The radionuclide option includes coincidence summing, and the monoenergetic option is summing free coincidence. The ratio between the monoenergetic to redionuclide options gives the coincidence summing correction factors. In the experiments a gamma-ray aqueous source containing the radionuclide 152Eu covering the range from 121 to 1408 keV was used. Comparing the monoenergetic option for calculating the full-energy peak efficiency and the corrected experimental efficiency, the values are in agreement.