Neutron detection properties of Li6Y(BO3)(3):Ce crystal

	Neutron detection properties of Li6Y(BO3)(3):Ce crystal
	Fu, ZW; Pan, SK; Yang, F; Gu, SJ; Lei, XC; Heng, YK; Ren, GH; Qi, M; Lei XC(雷祥翠); Heng YK(衡月昆)
刊名	RADIATION MEASUREMENTS
	2015
卷号	72 页码:39-43
关键词	Li6Y(BO3)(3):Ce Neutron scintillator Light yield Detection efficiency Decay time Neutron detection
英文摘要	Li6Y(BO3)(3):Ce crystal is a promising type of scintillator for neutron detection. In this study, the properties of Li6Y(BO3)(3):3at%Ce are studied, including its gamma sensitivity, neutron efficiency, alpha/gamma ratio, relative light yield, neutron pulse-height spectrum and decay time. Geant4 simulations indicate that its capture efficiency for thermal neutrons is as high as 78% for the natural abundances of the boron and lithium elements. The alpha/gamma ratio of Li6Y(BO3)(3):Ce is measured to be 0.03, which is 10 times lower than that of lithium glass. If the per-MeV light yield of lithium glass is defined to be 100, then the light yields generated by Li6Y(BO3)(3):Ce for gamma rays and alpha particles are 253.3 and 24.8, respectively, Under gamma-ray irradiation, the light yield of Li6Y(BO3)(3):Ce is approximately 6 times lower than that of NaI:Tl. In neutron detection, the neutron signal can be clearly distinguished from the backgrounds caused by the Cf-252 source itself. Li6Y(BO3)(3):Ce is also a fast scintillator, with decay times of 48.6 +/- 14.4 ns, 24.6 +/- 13.3 ns and 37.8 +/- 17.8 ns under irradiation with gamma rays, alpha particles and thermal neutrons, respectively. This study offers a systematic study of useful parameters of Li6Y(BO3)(3):3at%Ce crystal for application in and the improvement of neutron detection. (C) 2014 Elsevier Ltd. All rights reserved.
学科主题	Nuclear Science & Technology
类目[WOS]	Nuclear Science & Technology
收录类别	SCI ; EI
WOS记录号	WOS:000348262100005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228184]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Fu, ZW,Pan, SK,Yang, F,et al. Neutron detection properties of Li6Y(BO3)(3):Ce crystal[J]. RADIATION MEASUREMENTS,2015,72:39-43.
APA	Fu, ZW.,Pan, SK.,Yang, F.,Gu, SJ.,Lei, XC.,...&衡月昆.(2015).Neutron detection properties of Li6Y(BO3)(3):Ce crystal.RADIATION MEASUREMENTS,72,39-43.
MLA	Fu, ZW,et al."Neutron detection properties of Li6Y(BO3)(3):Ce crystal".RADIATION MEASUREMENTS 72(2015):39-43.