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Effect of Gd2O3 in Li2O–AlF3–CaF2–P2O5–Eu2O3 glasses for laser medium and X-rays detection material applications
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2022-06-25 , DOI: 10.1016/j.radphyschem.2022.110362
C.S. Sarumaha , J. Rajagukguk , J. Tongdang , N. Chanthima , H.J. Kim , S. Kothan , J. Kaewkhao

The glass formula of 20Li2O+10AlF3+2.5CaF2+(66.5-x)P2O5+xGd2O3+1Eu2O3 (PLACEu1Gdx), where x = 2,4,6,8,10 mol% have been prepared by conventional melt-quenching technique. These glasses' optical absorption, photoluminescence, decay time, and radioluminescence have been measured at room temperature. Judd-Ofelt's (J-O) analysis of PLACEu1Gd8 has been investigated and the magnitude of parameters follows the trend as Ω246. The important laser parameters such as radiative properties are calculated using J-O parameters and luminescence spectra. The decay time with the transition from the 5D0 level was estimated under 274 nm and 394 nm excitation using bi-exponential fitting. CIE coordinates, CCT and intensity ratio have been calculated for glass samples. The integral scintillation efficiency of PLACEu1Gd8 is 31% compared with BGO crystal. The PLACEu1Gdx glasses are promising for laser medium and x-rays detection material applications.



中文翻译:

Gd2O3 在 Li2O–AlF3–CaF2–P2O5–Eu2O3 玻璃中对激光介质和 X 射线检测材料应用的影响

玻璃分子式为20Li 2 O+10AlF 3 +2.5CaF 2 +(66.5- x )P 2 O 5 + x Gd 2 O 3 +1Eu 2 O 3 (PLACEu 1 Gd x ),其中x  = 2,4,6 ,8,10 mol% 已通过传统的熔体淬火技术制备。这些玻璃的光学吸收、光致发光、衰减时间和辐射发光已在室温下进行了测量。对PLACEu 1 Gd 8的Judd-Ofelt (JO) 分析进行了研究,参数的大小跟随Ω 2的趋势46。使用 JO 参数和发光光谱计算重要的激光参数,例如辐射特性。使用双指数拟合在 274 nm 和 394 nm 激发下估计从5 D 0水平转变的衰减时间。已经计算了玻璃样品的 CIE 坐标、CCT 和强度比。与BGO晶体相比,PLACEu 1 Gd 8的积分闪烁效率为31%。PLACEu 1 Gd x玻璃有望用于激光介质和 X 射线检测材料应用。

更新日期:2022-06-29
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