Detection Efficiency of NaI(Tl) Detector in 511–1332 keV Energy Range

Abstract

As it is important to obtain accurate analytical result in an experimental research, this required quality control of the experimental system. Gamma spectrometry system can be used in a variety of different fields such as radiation and medical physics. In this paper the absolute efficiency, peak to valley ratio, and energy resolution of a3′′×3′′NaI(Tl) detector were determined experimentally for 511, 662, 835, 1173, 1275, and 1332 keV photon energies obtained from22Na,54Mn,60Co, and137Cs radioactive sources.

Calculation of Detection Efficiency for the Gamma Detector using MCNPX

“…In this study we calculated the absolute efficiency of modeled 3 × 3 NaI(Tl) detector and compared the results with previous studies [9]. Detector efficiencies have been calculated and variation of efficiency depending on distance has been obtained.…”

“…Efficiency of the detector can vary depending (B-332) Calculation of Detection Efficiency for the Gamma Detector using MCNPX B-333 on several factors. One of these factors is distance between source and detector [9]. Different radiation sources ( 22 Na, 54 Mn, 60 Co and 137 Cs) were placed at two different distances (0,5 cm-10 cm) from the source and performed for each isotope.…”

Radiation Shielding Properties of Some Composite Panel

“…The measurements have been performed using a low level gamma counting spectrometer including a 3 × 3 NaI(TI) detector by ORTEC Inc., connected to a multichannel pulse height analyser [14]. The necessary power for the detector as well as the acquisition of gamma spectra was achieved by an integrated spectroscopic system.…”

Radiation Transmission of Some Gypsum Concretes for 511, 835 and 1275 keV Gamma Rays

“…As this subject is very important for health, there are many studies on the linear attenuation coefficient of different materials in the literature. This includes building materials [2][3][4][5], alloys [6,7] and also compounds [8][9][10][11][12][13].…”