Title

p STUDY OF MATHEMATICAL FUNCTIONS TO FIT DETECTOR EFFICIENCY CURVE IN GAMMA RAY ENERGY RANGE FROM 59.54 keV UP TO 1408.01 keV

Document Type

Article

Abstract

Recently, there have been several significant improvements in the area of the radiation detection system and its instruments, especially those using scintillation or semiconductor gamma ray detectors. Sci entists and technicians are interested in studying this progress, which can be useful for the detector's operation and its basic proper ties, such as energy, shape, and efficiency calibration. In this work, an ex tended study of various mathematical for mu las was con ducted to obtain the efficiency best-fit ting function, that covers the measured values from low to high energy regions. They can be used to rep re sent the efficiency of a high-purity germanium detector in the regions where ac cu racy and max i mum speed in optmizing the calibration process are very important for gamma spectroscopy. Determination of the activity of environmental samples mainly depends on the efficiency calibration curve of the detection system. The gamma ray energy in the range from 59.54 up to 1408.01 keV used in this work was obtained by using a set of standard radioactive gamma ray sources of certified intensity. The cur rent data anal y sis shows that most of the mathematical for mu las, which rep re sent the fit ting curve for the detector full-energy peak efficiency, were quite agree able with the experimental results.

Publication Date

9-1-2021

Faculty

Faculty of Applied Health Sciences Technology

Subject Area

Physical Sciences

Indexed in Web Of Science

yes

DOI

https://doi.org/10.2298/NTRP2103224T

Volume

36

Keywords

COINCIDENCE-SUMMING CORRECTIONS; PEAK EFFICIENCY; PEAK/TOTAL-RATIOS; NAI(TL) DETECTOR; NUMERICAL-METHOD; CALIBRATION; CRYSTALS

ISSN

1451-3994

eISSN

1452-8185

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