期刊
出版社
ELSEVIER
DOI: 10.1016/j.nima.2014.03.011
关键词
Energy resolution; GAGG:Ce; Light yield; Photofraction; Scintillation detectors
类别
资金
- NRU project of Thailand's Office of the Higher Education Commission and Czech GACR [P204/12/0805]
- Japan Society for the Promotion of Science (JSPS)
- Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST)
- Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP) and JST
- Ministry of Economy, Trade and Industry (METI)
The scintillation properties of Gd3Al2Ga3O12:Ce3+ (GAGG:Ce) single crystals grown by the Czochralski method with I at% cerium in the melt were investigated and results were compared with so far published results in the literature. The light yield (LY) and energy resolution were measured using a XP5200B photomultiplier. Despite about twice higher LY for GAGG:Ce, the energy resolution is only slightly better than that of LitAG:Ce due to its worse intrinsic resolution and non proportionality of LY. The LY dependences on the sample thickness and amplifier shaping time were measured. The estimated photofraction in pulse height spectra of 320 and 662 keV gamma-rays and the total mass attenuation coefficient at 662 keV gamma-rays were also determined and compared with the theoretical ones calculated using the WinXCom program. (C) 2014 Elsevier B.V. All rights reserved,
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