Status of the 20-in. PMT instrumentation for the JUNO experiment

doi:10.1007/978-981-13-1316-5_54

	Status of the 20-in. PMT instrumentation for the JUNO experiment
	JUNO Collaboration
刊名	SPRINGER PROCEEDINGS IN PHYSICS
	2018
卷号	213 页码:285-293
ISSN号	0930-8989
DOI	10.1007/978-981-13-1316-5_54
文献子类	Proceedings Paper
英文摘要	The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment currently under construction. The primary goal of this experiment is to determine the neutrino mass hierarchy and precisely measure the oscillation parameters by detecting reactor anti-neutrinos. The JUNO experiment will be equipped with about 20000 large photo-cathode PMTs (20-in.): 15000 MCP PMTs from NNVT and 5000 Dynode PMTs from Hamamatsu. To achieve a 3% energy resolution, the PMTs are required to have high detection efficiency as well as very high optical coverage in the central detector. The JUNO PMT instrumentation includes PMT characterization, base (voltage-divider), waterproof potting, implosion protection, and finally assembly and installation to the detector. An extensive and complete test program has been developed and is carried on to verify the critical PMT parameters. Moreover, since the PMTs are required to work for 20 years in high-purity water with a depth of 44 m, and the voltage-divider, high voltage unit and the readout electronics will be placed close to the PMTs in the water pool, it is very important to design a highly reliable waterproof potting. Finally, since to achieve a large optical coverage (75%), the PMTs have to be closely packed with clearances of few mm, the protection from possible chain implosions and the installation are very challenging tasks. © 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/311005/286595]
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	JUNO Collaboration. Status of the 20-in. PMT instrumentation for the JUNO experiment[J]. SPRINGER PROCEEDINGS IN PHYSICS,2018,213:285-293.
APA	JUNO Collaboration.(2018).Status of the 20-in. PMT instrumentation for the JUNO experiment.SPRINGER PROCEEDINGS IN PHYSICS,213,285-293.
MLA	JUNO Collaboration."Status of the 20-in. PMT instrumentation for the JUNO experiment".SPRINGER PROCEEDINGS IN PHYSICS 213(2018):285-293.