A phoswich composed of CsI:Na and LaBr3:Ce To improve the low energy response of LaBr3:Ce

被引：0
|
作者：
Gao, X. [1 ]
He, Y. J. [1 ]
Chen, Y. B. [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 10084, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2011年 / 5卷 / 3-4期
关键词：
Phoswich; CsI:Na; LaBr3:Ce; MCNP; Energy resolution;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A phoswich composed of single crystals CsI:Na and LaBr3:Ce was designed and constructed to improve the low energy response of LaBr3:Ce. The Monte-Carlo program MCNP5 was used to simulate the radiation energy deposition in the two scintillators of phoswich to determine the size. It is found that a phoswich composed of phi 20x2 mm CsI:Na and phi 20x20 mm LaBr3:Ce can optimize the energy resolution of 22.1 keV X-rays, 9% superior compared with LaBr3:Ce, while the energy resolution of 662 keV gamma-ray slighly deteriorates compared with LaBr3:Ce.
引用
收藏
页码：344 / 347
页数：4
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