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

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2026-06-01 Epub Date: 2026-02-10 DOI:10.1016/j.nima.2026.171301

Jilei Xu , Miao He , Cédric Cerna , Yongbo Huang , Thomas Adam , Shakeel Ahmad , Rizwan Ahmed , Fengpeng An , Costas Andreopoulos , Giuseppe Andronico , João Pedro Athayde Marcondes de André , Nikolay Anfimov , Vito Antonelli , Tatiana Antoshkina , Didier Auguste , Weidong Bai , Nikita Balashov , Andrea Barresi , Davide Basilico , Eric Baussan , Jiaheng Zou

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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.

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JUNO 3英寸PMT前端系统的设计、防水、量产

江门地下中微子天文台的中央探测器已经安装了25,600多个3英寸光电倍增管（pmt）。每个PMT配备一个高压分压器和一个前端电缆防水密封。16组pmt通过专门的多通道防水连接器连接到水下前端读出电子设备。本文概述了高压分压器、电缆和连接器的设计和批量生产过程，以及PMT底座的防水灌封。文中还介绍了所有集成pmt的验收测试结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.