Title

NaI cubic detector full-energy peak efficiency, including coincidence and self-absorption corrections for rectangular sources using analytical method

Document Type

Article

Abstract

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.

Publication Date

1-1-2021

Faculty

Faculty of Applied Health Sciences Technology

Subject Area

Physical Sciences, General Energy, General Environmental Science, General Chemistry, Health Sciences, General Medicine

Indexed in Scopus

yes

Indexed in Web Of Science

yes

DOI

https://doi.org/10.1007/s10967-020-07508-8

Volume

327

Keywords

Analytical, Coincidence summing, Cubic detector, Full-energy peak efficiency, Rectangular sources, Self-absorption

ISSN

02365731

eISSN

15882780

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