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Scintillation and luminescence properties of Ce-activated K_3Lu(PO_4)_2

机译:Ce活化的K_3Lu(PO_4)_2的闪烁和发光特性

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摘要

K_3Lu(PO_4)_2 : Ce single crystals have been studied under gamma, X-ray, VUV, and UV excitation. For all of the excitation forms, the luminescence of these materials is dominated by the d-f emission bands of Ce~(3+). The shape and position of these bands, however, depends on the form of the excitation and on temperature due to crystallographic structural phase changes and multiple types of Lu~(3+) ions sites in the which the Ce~(3+) ion can substitute for Lu. The highly efficient and fast scintillation of these materials is based on radiative recombination of electron-hole pairs via Ce ions, and the scintillation characteristics identify K_3Lu(PO_4)_2:Ce as a promising fast and efficient scintillator.
机译:K_3Lu(PO_4)_2:Ce单晶已经在伽玛,X射线,VUV和UV激发下进行了研究。对于所有激发形式,这些材料的发光均以Ce〜(3+)的d-f发射带为主。但是,这些带的形状和位置取决于激发的形式和温度,这归因于晶体结构的相变以及Ce〜(3+)离子可以在其中的多种Lu〜(3+)离子位点。代替鲁。这些材料的高效快速闪烁是基于电子-空穴对通过Ce离子的辐射复合,并且闪烁特性确定K_3Lu(PO_4)_2:Ce是有前途的快速高效闪烁体。

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