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Compact lithium-glass neutron beam monitor for SANS at CSNS
Zhou K(周科); Zhou JR(周健荣); Zhou XJ(周晓娟); Xie ZY(谢肇阳); Yang GA(杨桂安); Wang YF(王艳凤); Chen YB(陈元柏); Sun ZJ(孙志嘉); Zhou, K; Zhou, JR; Song, YS; Zhou, XJ; Xie, ZY; Yang, GA; Wang, YF; Chen, YB; Sun, ZJ
2018
Source PublicationNUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
EISSN2210-3147
Volume29Issue:9Pages:127
SubtypeArticle
AbstractA small-angle scattering neutron spectrometer for material research is under construction at the China Spallation Neutron Source. An intervening neutron beam monitor behind the sample is needed to measure the beam intensity in order to reduce the measurement uncertainty caused by beam fluctuation. Considering the mobility requirement and limited space, we proposed a compact monitor using a type of lithium-glass scintillator provided by China Building Materials Academy. Its performance was studied experimentally using Cf-252 and Co-60 sources. The neutron light yield of the selected scintillator was measured to be 5.3 x 10(3) photons/neutron. The feasibility of n-gamma discrimination using the charge comparison method was verified. By using the Geant4 toolkit, the monitor was modeled with precise physical processes including neutron tracking, scintillation, and optical photon transmission. The gamma sensitivity and detection efficiency were investigated in the simulation. It was concluded that a 0.5-mm-thick lithium-glass scintillator with natural lithium is an appropriate choice to satisfy both the neutron detection efficiency and gamma elimination requirements.
KeywordNeutron beam monitor Lithium glass n-gamma discrimination Detection efficiency
DOI10.1007/s41365-018-0468-z
WOS KeywordMONTE-CARLO ; SCINTILLATOR ; DETECTORS ; GEM
Indexed BySCI
Language英语
WOS Research AreaNuclear Science & Technology ; Physics
WOS SubjectNuclear Science & Technology ; Physics, Nuclear
WOS IDWOS:000442399800006
CSCD IDCSCD:6313365
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286231
Collection东莞研究部
实验物理中心
多学科研究中心
中国科学院高能物理研究所_中国散裂中子源
Corresponding AuthorSun ZJ(孙志嘉)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Zhou K,Zhou JR,Zhou XJ,et al. Compact lithium-glass neutron beam monitor for SANS at CSNS[J]. NUCLEAR SCIENCE AND TECHNIQUES,2018,29(9):127.
APA 周科.,周健荣.,周晓娟.,谢肇阳.,杨桂安.,...&Sun, ZJ.(2018).Compact lithium-glass neutron beam monitor for SANS at CSNS.NUCLEAR SCIENCE AND TECHNIQUES,29(9),127.
MLA 周科,et al."Compact lithium-glass neutron beam monitor for SANS at CSNS".NUCLEAR SCIENCE AND TECHNIQUES 29.9(2018):127.
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