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人工晶体学报 ›› 2023, Vol. 52 ›› Issue (10): 1867-1871.

• 研究论文 • 上一篇    下一篇

酒石酸添加对Ce3+激活硼锗酸盐闪烁玻璃发光性能的影响

张梅伦, 曹振博, 杨胜赟, 张洋, 李自金, 周游, 郑京明, 贾金升   

  1. 中建材光子科技有限公司,枣庄 277000
  • 收稿日期:2023-04-01 发布日期:2023-10-18
  • 通信作者: 曹振博,博士,教授级高工。E-mail:czb824@163.com。
  • 作者简介:张梅伦(1995—),男,山东省人,助理工程师。E-mail:17854250730@163.com

Effect of Tartaric Acid Addition on Luminescence Properties of Ce3+ Activated Borogermanate Scintillating Glass

ZHANG Meilun, CAO Zhenbo, YANG Shengyun, ZHANG Yang, LI Zijin, ZHOU You, ZHENG Jingming, JIA Jinsheng   

  1. China National Building Material Photonics Technology Co., Ltd., Zaozhuang 277000, China
  • Received:2023-04-01 Published:2023-10-18

摘要: 本文采用传统的高温熔融法在空气气氛中制备了无色透明的Ce3+激活硼锗酸盐闪烁玻璃,该硼锗酸盐闪烁玻璃中GeO2和Gd2O3总含量为85%,测得其密度在5.82 g/cm3左右,且在450~800 nm线性透过率可达80%以上。加入少量的酒石酸(C4H6O6)作为强还原剂以减少Ce4+的产生,研究了在不同酒石酸添加量下硼锗酸盐闪烁玻璃中Ce3+在340 nm激发波长下的荧光衰减特性,确定了酒石酸的最佳添加量。此外,硼锗酸盐闪烁玻璃鲜有光产额方面的报道,本文测得制备的Ce3+激活硼锗酸盐闪烁玻璃的光产额为27 ph/MeV,且该高密度Ce3+激活硼锗酸盐闪烁玻璃具有最短约14.40 ns的衰减时间。可以预见,该高密度、快闪烁硼锗酸盐闪烁玻璃在高能物理和医学成像等领域有着巨大的发展潜力。

关键词: 闪烁玻璃, 硼锗酸盐玻璃, Ce3+, 酒石酸, 光产额, 衰减时间

Abstract: In this paper, colorless and transparent Ce3+ activated borogermanate scintillating glass was prepared in air atmosphere by traditional melt-quenching method. The total content of GeO2 and Gd2O3 in the borogermanate scintillating glass is 85%, and the measured density is about 5.82 g/cm3. The linear transmittance of the glass scintillator is more than 80% in the wavelength range of 450 nm to 800 nm. A small amount of tartaric acid (C4H6O6) was added as a strong reducing agent to reduce the production of Ce4+. The fluorescence decay characteristics of Ce3+ in the borogermanate scintillating glass at 340 nm excitation wavelength were studied under different dosage of tartric acid, and the optimal dosage of tartric acid was also determined. In addition, the light yield of borogermanate scintillating glass was rarely reported before. In this work, the light yield of the prepared Ce3+ activated borogermanate scintillating glass is measured as 27 ph/MeV, and the high density Ce3+ activated borogermanate scintillating glass has a minimum decay time of about 14.40 ns. It can be predicted that the prepared borogermanate scintillation glass with high density and fast decay time has great development potential in the fields of high energy physics and medicine imaging.

Key words: glass scintillator, borogermanate glass, Ce3+, tartaric acid, light yield, decay time

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