Scintillation and thermally stimulated luminescence properties of Ce-doped SrO-Al2O3-SiO2 glasses
Scintillation and thermally stimulated luminescence properties of Ce-doped SrO-Al2O3-SiO2 glasses
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Ce掺杂SrO-Al2O3-SiO2玻璃的闪烁和热受激发光性能
DOI：
10.1007/s10854-019-02845-1
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Yanagida Takayuki
中科院分区：
文献类型：
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作者：
Kimura Hiromi ;Masai Hirokazu;Kato Takumi;Nakauchi Daisuke;KawaguchiNoriaki;Yanagida Takayuki
采用熔融猝灭法制备了不同Ce掺杂浓度(0、0.01、0.05、0.1和0.5mol%)的45SrO-5Al_2O_3-50SiO_2玻璃，研究了玻璃的基本光学、闪烁和热释光(TSL)特性。在光学性质方面，在340 nm激发下，确认了Ce掺杂玻璃在420 nm附近的发射峰。这可能是由于Ce3+的5d→4f跃迁引起的。相反，所有玻璃的闪烁光谱都在350 nm和400 nm附近出现了两个发射峰，其来源可能是宿主玻璃中包含的一些缺陷或杂质离子。在241Am5.5 MeVα射线照射下，非掺杂玻璃的光产额最高，达到69光子/MeV，典型误差为± 10%。在热释光性能方面，0.01%Ce掺杂玻璃的热释光强度最高，并且在0.01-1000mGy剂量范围内与辐照剂量呈线性关系。
45SrO–5Al2O3–50SiO2glasses doped with various concentrations of Ce (0, 0.01, 0.05, 0.1, and 0.5 mol%) were synthesized by the conventional melt-quenching methods, and the basic optical, scintillation, and thermally stimulated luminescence (TSL) properties were investigated. Regarding the optical properties, under 340 nm excitation, the emission peak around 420 nm of the Ce-doped glasses was confirmed. The emission would be due to the 5d → 4f transitions of Ce3+. In contrast, the scintillation spectra of all the glasses showed two emission peaks around 350 and 400 nm, and the origins would be some defects or impurity ions included in the host glass. By241Am 5.5 MeV α-ray irradiation, the non-doped glass showed the highest light yield, which was 69 photons/MeV with a typical error of ± 10%. As the TSL properties, the TSL intensity of 0.01% Ce-doped glass was the highest among the prepared glasses, and a linear response to the irradiation dose was confirmed in the dose range of 0.01–1000 mGy.