Abstract

• The most radiation detection method is based on the gamma – ray Spectrometry measurement, which is widely used in different fields. To obtain accurate analytical results in an experimental research, quality control of the detection system is important. Detection efficiency and energy resolution of NaI(Tl) scintillation detector are fundamental parameters for detection system. In this work, detection efficiency and energy resolution of 2″ x 2″ NaI(Tl) detector were experimentally measured using 22Na, 60Co and 137Cs standard radioactive sources at the energy range of 511 keV to 1332 keV.