The study of Rn in the JUNO prototype water system

doi:10.1007/978-981-13-1316-5_40

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	The study of Rn in the JUNO prototype water system
	JUNO Collaboration
刊名	SPRINGER PROCEEDINGS IN PHYSICS
	2018
卷号	213 页码:213-217
ISSN号	0930-8989
DOI	10.1007/978-981-13-1316-5_40
文献子类	Proceedings Paper
英文摘要	In order to reduce and monitor the Rn concentration in pure water supplied to the JUNO detector, the vacuum degasses membrane device had been installed in the JUNO prototype water system. Meanwhile, two high sensitivity detectors for Rn measurement in water and gas have been set up and calibrated using a known concentration of Rn source. The measurement results of the two detectors are consistent with each other. The background level of the PIN detector was measured by using pure evaporated nitrogen. As a result, Rn concentration of detector background is 0.07 ± 0.04 Bq/m3 for the PIN detector and 5.44 ± 0.43 Bq/m3 for the LS detector (only statistical errors are reported). The activated charcoal was used to enrich Rn for improving Rn signal rate as well as signal-to-noise ratio in the LS detector. The removal Rn efficiency of one degassing by one degasser membrane is 59%. A better results will be obtained by optimizing the degasser and, as it can be seen, it fulfills JUNO’s requirements. © Springer Nature Singapore Pte Ltd. 2018.
电子版国际标准刊号	1867-4941
会议地点	Beijing, China
语种	英语
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286591]
专题	高能物理研究所_粒子天体物理中心
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	JUNO Collaboration. The study of Rn in the JUNO prototype water system[J]. SPRINGER PROCEEDINGS IN PHYSICS,2018,213:213-217.
APA	JUNO Collaboration.(2018).The study of Rn in the JUNO prototype water system.SPRINGER PROCEEDINGS IN PHYSICS,213,213-217.
MLA	JUNO Collaboration."The study of Rn in the JUNO prototype water system".SPRINGER PROCEEDINGS IN PHYSICS 213(2018):213-217.