Neutron background measurements with a hybrid neutron detector at the Kuo-Sheng Reactor Neutrino Laboratory

doi:10.1103/PhysRevC.98.024602

	Neutron background measurements with a hybrid neutron detector at the Kuo-Sheng Reactor Neutrino Laboratory
	TEXONO Collaboration
刊名	PHYSICAL REVIEW C
	2018
卷号	98 期号:2 页码:24602
ISSN号	2469-9985
DOI	10.1103/PhysRevC.98.024602
文献子类	Article
英文摘要	We report in situ neutron background measurements at the Kuo-Sheng Reactor Neutrino Laboratory (KSNL) by a hybrid neutron detector (HND) with a data size of 33.8 days under shielding configurations identical to those used during the neutrino physics data taking. The HND consists of BC-501A liquid and BC-702 phosphor powder scintillation neutron detectors, which are sensitive to both fast and thermal neutrons, respectively. Neutron-induced events for the two channels are identified and differentiated by pulse shape analysis, such that the backgrounds of both are simultaneously measured. The fast neutron fluxes are derived by an iterative unfolding algorithm. Neutron-induced backgrounds in the germanium detector under the same fluxes, due to both cosmic rays and ambient radioactivity, are derived and compared with the measurements. The results are valuable to background understanding of the neutrino data at the KSNL. In particular, neutron-induced background events due to ambient radioactivity as well as from reactor operation are negligible compared to intrinsic cosmogenic activity and ambient gamma activity. The detector concept and analysis procedures are applicable to neutron background characterization in similar rare-event experiments.
电子版国际标准刊号	2469-9993
WOS关键词	SCINTILLATOR ; PERFORMANCE ; SITE
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000440634100002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286169]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	TEXONO Collaboration. Neutron background measurements with a hybrid neutron detector at the Kuo-Sheng Reactor Neutrino Laboratory[J]. PHYSICAL REVIEW C,2018,98(2):24602.
APA	TEXONO Collaboration.(2018).Neutron background measurements with a hybrid neutron detector at the Kuo-Sheng Reactor Neutrino Laboratory.PHYSICAL REVIEW C,98(2),24602.
MLA	TEXONO Collaboration."Neutron background measurements with a hybrid neutron detector at the Kuo-Sheng Reactor Neutrino Laboratory".PHYSICAL REVIEW C 98.2(2018):24602.