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Scintillation properties of Ti- and Zr-doped lanthanum hafnate single crystals

机译:Ti-od-Zr掺杂镧铪单晶的闪烁性能

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Undoped, Zr-doped and Ti-doped La2Hf2O7 single crystals were grown by the optical floating zone technique to evaluate the scintillation properties. The synthesized single crystals show scintillation signals with a broad peak around 450 nm. The scintillation decay curves indicate the decay time constants are in nanoseconds order. Suggested from the pulse height spectra under Am-241 alpha-ray irradiation, the scintillation light yields of the undoped, Zr-doped and Ti-doped crystal samples are 270, 180 and 390 photons/MeV. From these results, Ti doping seems to enhance the scintillation properties of a La2Hf2O7 crystal.
机译:未掺杂的,通过光学浮置区技术生长Zr掺杂和Ti掺杂的La2HF2O7单晶以评估闪烁性能。合成的单晶显示闪烁信号,宽峰值约为450nm。闪烁的衰减曲线表示衰减时间常数是纳秒顺序。从AM-241α射线照射下的脉冲高频光谱建议,未掺杂的Zr掺杂和Ti掺杂的晶体样品的闪烁光产生是270,180和390光子/ MEV。从这些结果来看,Ti掺杂似乎增强了La2HF2O7晶体的闪烁性质。

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