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

Scintillation properties of Ti- and Zr-doped lanthanum hafnate single crystals
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Ti、Zr掺杂铪酸镧单晶的闪烁特性

DOI:
10.1016/j.optmat.2019.02.050
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发表时间:
2019
期刊:
影响因子:
3.9
通讯作者:
Yanagida Takayuki
Yanagida Takayuki
中科院分区:
材料科学3区
文献类型:
--
作者:
Nakauchi Daisuke;Kawaguchi Noriaki;Yanagida Takayuki

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采用光学浮区法生长未掺杂、掺zr和掺ti的la2hf2o7单晶,考察其闪烁性能。合成的单晶在450 nm附近有宽峰闪烁信号。闪烁衰减曲线表明,衰减时间常数为纳秒级。从241am α射线照射下的脉冲高度谱可知,未掺杂、掺锆和掺钛晶体样品的闪烁产光量分别为270、180和390光子/MeV。从这些结果来看,ti掺杂似乎增强了la2hf2o7晶体的闪烁性能。
Undoped, Zr-doped and Ti-doped La2Hf2O7single 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 under241Am 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 La2Hf2O7crystal.
DOI: 10.1016/0168-583x(89)90622-8
发表时间: 1989-04-01
影响因子: 1.3
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DOI: 10.1088/1361-648x/29/7/075902
发表时间: 2016
期刊: Journal of Physics: Condensed Matter
影响因子: --
作者:
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