| 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
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| 2018 | |
| Source Publication | NUCLEAR SCIENCE AND TECHNIQUES
 |
| ISSN | 1001-8042 |
| EISSN | 2210-3147 |
| Volume | 29Issue:9Pages:127 |
| Subtype | Article |
| Abstract | A 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. |
| Keyword | Neutron beam monitor Lithium glass n-gamma discrimination Detection efficiency |
| DOI | 10.1007/s41365-018-0468-z |
| WOS Keyword | MONTE-CARLO ; SCINTILLATOR ; DETECTORS ; GEM |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Nuclear Science & Technology ; Physics |
| WOS Subject | Nuclear Science & Technology ; Physics, Nuclear |
| WOS ID | WOS:000442399800006 |
| CSCD ID | CSCD:6313365 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Sun ZJ(孙志嘉) |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| Corresponding Author Affilication | Institute 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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