Waterproofed Photomultiplier Tube Assemblies for the Daya Bay Reactor Neutrino Experiment
Chow, Ken · Cummings, John · Edwards, Emily · Edwards, William · Ely, Ry · Hoff, Matthew · Lebanowski, Logan · Li, Bo · Li, Piyi · Lin, Shih-Kai · Liu, Dawei · Liu, Jinchang · Luk, Kam-Biu · Miao, Jiayuan · Napolitano, Jim · Ochoa-Ricoux, Juan Pedro · Peng, Jen-Chieh · Qi, Ming · Steiner, Herbert · Stoler, Paul · Stuart, Mary · Wang, Lingyu · Yang, Changgen · Zhong, Weili
Original · EN
In the Daya Bay Reactor Neutrino Experiment 960 20-cm-diameter waterproof photomultiplier tubes are used to instrument three water pools as Cherenkov detectors for detecting cosmic-ray muons. Of these 960 photomultiplier tubes, 341 are recycled from the MACRO experiment. A systematic program was undertaken to refurbish them as waterproof assemblies. In the context of passing the water leakage check, a success rate better than 97% was achieved. Details of the design, fabrication, testing, operation, and performance of these waterproofed photomultiplier-tube assemblies are presented.
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