The Ce-substituted (Ce _x , Pr_1-x )₂Si₂O₇ bulk single crystals were synthesized by the floating zone method, and their photoluminescence (PL) and scintillation properties were evaluated. The X-ray diffraction patterns showed that all the synthesized samples were a single-phase of monoclinic Pr₂Si₂O₇. In PL and scintillation, an emission peak was observed at around 370–390nm due to the 5d–4f transitions of Ce³⁺. In pulse height spectra, the scintillation light yield was ∼400phMeV⁻¹ in the 99% Ce-substituted sample. The 99% Ce-substituted sample showed the highest scintillation light yield among the present samples.

中文翻译：

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Ce取代的Pr ₂ Si ₂ O ₇晶体闪烁体的光致发光和闪烁特性

通过浮区法合成了Ce取代的（Ce _x，Pr _{1- x}）₂ Si ₂ O ₇块状单晶，并对其光致发光（PL）和闪烁特性进行了评估。X射线衍射图谱表明，所有合成样品均为单斜晶Pr ₂ Si ₂ O ₇单相。在PL和闪烁中，由于Ce ³⁺的5d-4f跃迁，在370-390nm附近观察到一个发射峰。在脉冲高度光谱中，闪烁光的产量约为400phMeV ^-1 在99％Ce取代的样品中 在本样品中，99％Ce取代的样品显示出最高的闪烁光产率。