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Published February 11, 2015 | Submitted
Journal Article Open

The muon system of the Daya Bay Reactor antineutrino experiment


The Daya Bay experiment consists of functionally identical antineutrino detectors immersed in pools of ultrapure water in three well-separated underground experimental halls near two nuclear reactor complexes. These pools serve both as shields against natural, low-energy radiation, and as water Cherenkov detectors that efficiently detect cosmic muons using arrays of photomultiplier tubes. Each pool is covered by a plane of resistive plate chambers as an additional means of detecting muons. Design, construction, operation, and performance of these muon detectors are described.

Additional Information

© 2014 Elsevier B.V. Received 3 July 2014, Revised 21 September 2014, Accepted 25 September 2014, Available online 5 October 2014. The Daya Bay experiment is supported in part by the Ministry of Science and Technology of China, the United States Department of Energy, the Chinese Academy of Sciences, the National Natural Science Foundation of China, the Guangdong provincial government, the Shenzhen Municipal government, the China General Nuclear Power Corporation (formerly the China Guangdong Nuclear Power Group), Shanghai Laboratory for particle physics and cosmology, the Research Grants Council of the Hong Kong Special Administrative Region of China, the focused investment scheme of CUHK and University Development Fund of The University of Hong Kong, the MOE program for Research of Excellence at National Taiwan University and NSC funding support from Taiwan, the U.S. National Science Foundation, the Alfred P. Sloan Foundation, the University of Wisconsin, the Virginia Polytechnic Institute and State University, Princeton University, California Institute of Technology, University of California at Berkeley, the Ministry of Education, Youth and Sports of the Czech Republic, the Joint Institute of Nuclear Research in Dubna, Russia, and the NSFC-RFBR joint research program. We are grateful for the ongoing cooperation from the China General Nuclear Power Corporation.

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