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.

• Periodical: Key Engineering Materials (Volume 766)
• Pages: 99-104
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.766.99
• Online since: April 2018
• Authors: Wuttichai Chaiphaksa*, Narong Sangwaranatee, Pruittipol Limkitjaroenporn, Hong Joo Kim, Jakrapong Kaewkhao
• Keywords: Compton Coincidence Technique, Non-Proportionality, Scintillator

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