1. Scintillation and photoluminescence performance of Ce3+-doped high gadolinium oxyfluoride glass for circular electron-positron collider (CEPC).
- Author
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Li, Weichang, Chen, Danping, Hu, Lili, He, Dongbing, Chen, Shubin, Yu, Chunlei, Qian, Sen, Hua, Zhehao, Tang, Gao, Jing, Ren, Sun, Xinyuan, Zhang, Minghui, Liu, Shan, Cai, Hua, Han, Jifeng, and Yin, Shenghua
- Subjects
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PHOTOLUMINESCENCE , *PHOSPHATE glass , *GLASS , *SCINTILLATORS , *BISMUTH trioxide , *BISMUTH oxides , *GADOLINIUM , *ENERGY transfer , *CESIUM isotopes - Abstract
The large size (4 cm × 4 cm × 1 cm) Ce3+-doped high gadolinium oxyfluoride glass with density of 5.83 g/cm³ was prepared by the melt quench method at 1220 °C. The glass is colorless and transparent over the visible range. The prolonged decay time under 275 nm UV light demonstrates the energy transfer from Gd3+ ions to Ce3+ ions. The X-ray excited luminescence spectra (XEL) show the emission peak corresponds to the 5d→4f transitions of Ce3+ ion. The integral emission intensity of glass was compared with that of bismuth germanate oxide (BGO) crystals. The scintillation property of glass was studied under the γ -ray from 137Cs source and a clear energy peak was observed with light yield (LY) over 1100 ph/MeV. The scintillation decay time comprises fast and slow components. All results presented in this work indicate the appropriate potential to be high-energy rays detecting material for CEPC. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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