NaI cubic detector full-energy peak efficiency, including coincidence and self-absorption corrections for rectangular sources using analytical method
Low activities of radionuclides in environmental and occupational samples demand for the lower detection limits of the measuring system, which can be achieved by minimizing the source-to-detector distance. Analytical technique to calculate full-energy peak efficiency and total efficiency, self-absorption of sources and a coincidence factor of the NaI cubic scintillation detector with rectangular cavity for rectangular source have been derived. The photon path length of the volumetric sources calculated and determined source self-absorption. The photon attention by rectangular sources and detector cap materials is also calculated. In the experiments gamma aqueous source containing Eu-152 radionuclide covering range from 121 to 1408 keV was used. By comparison analytical method for calculating the full energy peak efficiency and the corrected experimental efficiency values are in good a agreement.
Faculty of Applied Health Sciences Technology
Physical Sciences, General Energy, General Environmental Science, General Chemistry, Health Sciences, General Medicine
Indexed in Scopus
Indexed in Web Of Science
Analytical, Coincidence summing, Cubic detector, Full-energy peak efficiency, Rectangular sources, Self-absorption
Abbas, Mahmoud I.; Elsafi, Mohamed; Gouda, Mona M.; Abd-Elzaher, Mohamed; Hamzawy, A.; Badawi, Mohamed S.; Thabet, Abouzeid A.; Noureddine, Salam; and El-Khatib, Ahmed M., "NaI cubic detector full-energy peak efficiency, including coincidence and self-absorption corrections for rectangular sources using analytical method" (2021). Faculty of Applied Health Sciences Technology. 34.