Scintillation properties of 1 inch Cs2LiYCl6:Ce crystals
Scintillation properties of 1 inch Cs2LiYCl6:Ce crystals
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DOI：
10.1109/tns.2007.913467
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发表时间：
2008-06-01
影响因子：
1.8
通讯作者：
Shah, Kanai S.
中科院分区：
文献类型：
--
作者：
Glodo, Jarek;Higgins, William A.;Shah, Kanai S.
我们已经生长和研究1英寸直径的Cs2 LiYCl 6：Ce（CLYC）晶体的γ和中子探测。样品提供了优异的结果。例如，在662 keV下获得5.1 +/- 0.1%的能量分辨率（511 keV下为5.5%）。测量4500 +/-350光电子/MeV（PMT，Hamamatsu R6233）的光输出。在14.4至1274 keV范围内，样品还显示出出色的+/- 1.2%非比例性。这表明了利用上级光电探测器实现甚至更好的能量分辨率的可能性。本征能量分辨率的研究晶体估计为2.1%。中子探测也得到了证实。中子峰在约3.2 MeV（伽马当量）处观察到，其分辨率为2.9 +/-0.1%。γ-中子脉冲形状的歧视也实现了。
We have grown and investigated 1 inch diameter Cs2LiYCl6:Ce (CLYC) crystals for gamma and neutron detection. The samples provided excellent results. For example, 5.1 +/- 0.1% energy resolution was obtained at 662 keV (5.5% @511 keV). The light output of 4500 +/- 350 photoelectrons/MeV (PMT, Hamamatsu R6233) was measured. The samples also showed excellent +/- 1.2% non-proportionality in the 14.4 to 1274 keV range. This suggests a possibility for even better energy resolution with a superior photodetector. The intrinsic energy resolution of investigated crystals was estimated to be 2.1%. The neutron detection was also confirmed. The neutron peak was observed at about 3.2 MeV (gamma equivalent) and its resolution was 2.9 +/- 0.1%. Gamma-neutron pulse shape discrimination was also achieved.