期刊
出版社
ELSEVIER
DOI: 10.1016/j.nima.2017.04.027
关键词
Scintillator; Tb3Al5O12; Crystalline materials
类别
资金
- Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT) [26249147]
- JST A-step
- Grants-in-Aid for Scientific Research [17H01375] Funding Source: KAKEN
Tb3Al5O12 (TbAG) crystalline materials doped with different concentrations of Ce were prepared by the floating zone (FZ) method to evaluate their basic optical and scintillation properties. In photoluminescence (PL), a broad emission due to the 5d-4f f transition of Ce3+ appeared around 550 nm, and the decay time was approximately 40 ns. Under X-ray irradiation, the scintillation due to the 5d-4f transition of Ce3+ was also observed around 550 nm, but the decay time appeared to be much longer 376-599 ns than that of PL and it depended on the concentration of Ce. The pulse height spectroscopy analyses revealed that 3.0% Ce-doped TbAG showed the highest light yield of 30,100 ph/MeV under Cs-137 gamma-ray irradiation among the samples investigated in this work. (C) 2017 Elsevier B.V. All rights reserved.
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