Luminescence properties of Tb3+-doped oxyfluoride scintillating glasses

Luminescence properties of Tb3+-doped oxyfluoride scintillating glasses
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Tb3掺杂氟氧化物闪烁玻璃的发光性能

DOI:
10.1016/j.jlumin.2013.12.036
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发表时间:
2014-08
影响因子:
3.6
通讯作者:
Shiqing Xu
Shiqing Xu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Shijie Jia;Lihui Huang;Donglei Ma;Zhenxing Tai;Shilong Zhao;Degang Deng;Huanping Wang;Guohua Jia;Youjie Hua;Qinghua Yang;Shiqing Xu

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采用熔体淬火法制备了掺Tb3+的氟化氧透明玻璃。透射光谱表明,该玻璃在可见光区具有良好的透射率。记录了376 nm光和x射线激发下的发射光谱。Tb3+掺杂氟化氧玻璃在两种激发下都表现出强烈的绿色辐射。在376nm光激发和x射线激发下,Tb3+离子的最佳浓度分别为8mol %和10mol %左右。掺Tb3+的氟化氧玻璃的541 nm发射寿命在2.65 ~ 3.02 ms之间。结果表明,Tb3+掺杂氟化氧玻璃是一种适合于慢事件x射线探测的x射线闪烁材料。
Transparent oxyfluoride glasses doped with Tb3+were prepared by melt quenching method. The transmittance spectra show the glasses have good transmittance in the visible spectrum region. The emission spectra under 376 nm light and X-ray excitations were recorded. Tb3+doped oxyfluoride glasses show intense green emissions under both excitations. The optimum concentrations of Tb3+ion are around 8 mol% and around 10 mol% under 376 nm light excitation and X-ray excitation, respectively. The lifetimes of 541 nm emission of oxyfluoride glasses doped with Tb3+are in the range from 2.65 ms to 3.02 ms. The results indicate that Tb3+-doped oxyfluoride glasses could be an X-ray scintillating material suitable to X-ray detection for slow event.
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发表时间: 2013-07
影响因子: 6.2
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