Developing the radium measurement system for the water Cherenkov detector of the Jiangmen Underground Neutrino Observatory

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成果类型：

期刊论文

作者：

Xie, L. F.;Liu, J. C.;Qiu, S. K.;Guo, C.;Yang, C. G.;...

通讯作者：

C. Guo<&wdkj&>Q. Tang

作者机构：

[Xie, L. F.; Qiu, S. K.; Tang, Q.] School of Nuclear Science and Technology, University of South China, Hengyang, China

[Liu, J. C.; Guo, C.; Zhang, Y. P.; Zhang, P.] Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Science, Beijing, China

School of Physics, University of Chinese Academy of Science, Beijing, China

[Yang, C. G.] Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Science, Beijing, China<&wdkj&>School of Physics, University of Chinese Academy of Science, Beijing, China

通讯机构：

[C. Guo] K

[Q. Tang] S

School of Nuclear Science and Technology, University of South China, Hengyang, China<&wdkj&>Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Science, Beijing, China

语种：

英文

关键词：

Cerenkov counters;Neutrons;Observatories;Radium;Radon;Liquid scintillator detectors;Measurement sensitivity;Measurement system;Radium concentrations;Radium measurements;Radon concentrations;Water Cherenkov detectors;Water measurements;Particle detectors

期刊：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

ISSN：

0168-9002

年：

2020

卷：

976

页码：

164266

DOI：

10.1016/j.nima.2020.164266

基金类别：

This work is supported by Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA10010300 ), National Natural Science Foundation of China (Grant No. 11875280 ) and the Innovative Project of Institute of High Energy Physics, China (Grant No. Y9545140U2 ).

机构署名：

本校为第一且通讯机构

院系归属：

核科学技术学院

摘要：

The Jiangmen Underground Neutrino Observatory is proposed to determine neutrino mass hierarchy using a 20 ktonne liquid scintillator detector. Strict radio-purity requirements have been put forward for all the components of the detector. According to the MC simulation results, the radon dissolved in the water Cherenkov detector should be below 200 mBq/m3. Radium, the progenitor of radon, should also be taken seriously into account. In order to measure the radium concentration in water, a radium measurement system, which consists of a radium ext...

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Developing the radium measurement system for the water Cherenkov detector of the Jiangmen Underground Neutrino Observatory

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