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首页> 外文期刊>Journal of Crystal Growth >The Growth And Scintillation Properties Of Csce_2cl_7 Crystal
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The Growth And Scintillation Properties Of Csce_2cl_7 Crystal

机译:Csce_2cl_7晶体的生长和闪烁特性

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We report on a new scintillation crystal, CsCe_2Cl_7, for γ-ray spectroscopy. The crystal was grown using the Czocralski pulling method. X-ray excited luminescence measurements of the CsCe_2Cl_7 showed a broad emission band in the wavelength range from 370 to 470 nm with a peak centre at 410 nm. An energy resolution (FWHM of peak position) for the 662 keV full energy peak of 5.5% was observed at room temperature. The results showed a good proportionality for light output versus y-ray energy. The light output deviation from the linear response is about 10% between the energy range of 31 and 1333 keV. We measured a light yield of 28,000 photons/MeV of absorbed γ-ray energy. The scintillation decay curve of CsCe_2Cl_7 can be described by a single exponential decay function with a decay time of 50 ns. Overall, these measurements clearly indicate that CsCe_2Cl_7 can exhibit attracting scintillation properties, and we believe that the CsCe_2Cl_7 crystal is a promising material for medical imaging and radiation detection.
机译:我们报告了一种新的闪烁晶体CsCe_2Cl_7,用于γ射线光谱学。使用直拉法生长晶体。 CsCe_2Cl_7的X射线激发发光测量显示,在370至470 nm的波长范围内有较宽的发射带,其峰值中心位于410 nm。在室温下,观察到5.5%的662 keV全能量峰的能量分辨率(峰位置的FWHM)。结果表明,光输出与y射线能量成正比。在31和1333 keV的能量范围之间,线性响应的光输出偏差约为10%。我们测得吸收的γ射线能量为28,000光子/ MeV。 CsCe_2Cl_7的闪烁衰减曲线可以用一个衰减时间为50 ns的单指数衰减函数来描述。总体而言,这些测量结果清楚地表明CsCe_2Cl_7可以表现出吸引人的闪烁特性,并且我们认为CsCe_2Cl_7晶体是用于医学成像和放射线检测的有前途的材料。

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