Non-Proportionality and Scintillation Properties of YAG:Ce Scintillator by Compton Coincidence Technique

Abstract

The work is focused to study the non-proportionality and scintillation properties of YAG:Ce scintillator by the Compton coincidence technique (CCT). The 137Cs was used as a radioactive source with an energy 662 keV and were recorded at seven scattering angles ranging 30°-120°. The electron energy resolution, the light yield and non-proportionality were measured. It was found that, the linear relations were observed for YAG:Ce scintillator indicated that the energy resolutions are inverse proportional to the square root of energy. The results show that the light yield increases with increase in electron energy. The non-proportionality of YAG:Ce scintillator, it can be observed the crystal demonstrated good proportional property in the electron energy range. For the electron energy range below 350 keV, the electron response decreased at approximately 3.5 % over the measured energy range.