Over 25,600 3-inch photomultiplier tubes (PMTs) have been instrumented for the central detector of the Jiangmen Underground Neutrino Observatory. Each PMT is equipped with a high-voltage divider and a frontend cable with waterproof sealing. Groups of sixteen PMTs are connected to the underwater frontend readout electronics via specialized multi-channel waterproof connectors. This paper outlines the design and mass production processes for the high-voltage divider, the cable and connector, as well as the waterproof potting of the PMT bases. The results of the acceptance tests of all the integrated PMTs are also presented.

Xu, J., He, M., Cerna, C., Huang, Y., Adam, T., Ahmad, S., et al. (2026). Design, waterproofing, and mass production of the 3-inch PMT frontend system of JUNO. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 1086 [10.1016/j.nima.2026.171301].

Design, waterproofing, and mass production of the 3-inch PMT frontend system of JUNO

Budano, Antonio;Fabbri, Andrea;Farilla, Elia Stanescu;Mari, Stefano M.;Orestano, Domizia;Petrucci, Fabrizio;Shi, Hexi;Venettacci, Carlo;
2026-01-01

Abstract

Over 25,600 3-inch photomultiplier tubes (PMTs) have been instrumented for the central detector of the Jiangmen Underground Neutrino Observatory. Each PMT is equipped with a high-voltage divider and a frontend cable with waterproof sealing. Groups of sixteen PMTs are connected to the underwater frontend readout electronics via specialized multi-channel waterproof connectors. This paper outlines the design and mass production processes for the high-voltage divider, the cable and connector, as well as the waterproof potting of the PMT bases. The results of the acceptance tests of all the integrated PMTs are also presented.
2026
Xu, J., He, M., Cerna, C., Huang, Y., Adam, T., Ahmad, S., et al. (2026). Design, waterproofing, and mass production of the 3-inch PMT frontend system of JUNO. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 1086 [10.1016/j.nima.2026.171301].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/544836
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