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Main Authors:	Walker, Pablo, Ochoa-Ricoux, Juan Pedro, Abusleme, Angel, Campeny, Agustin, Bongrand, Mathieu, Bordereau, Clément, Busto, José, Cabrera, Anatael, Callier, Stéphane, Calvez, Steven, Cerna, Cédric, Chabot, Thomas, Chen, Po-An, Chen, Guoming, Chu, Ziliang, Claverie, Gérard, De La Taille, Christophe, Demonchy, Charles-Edouard, Di Lorenzo, Selma Conforti, Druillole, Frédéric, Fan, Lei, Fournier, Amélie, Han, Yang, He, Miao, Hellmuth, Patrick, Herrera, Rafael, Hsiung, Yee, Hu, Bei-Zhen, Hu, Jun, Huang, Guihong, Huang, Yongbo, Huss, Cédric, Imbert, Léonard, Jacobi, Adrienne, Jeria, Ignacio, Jiang, Xiaoshan, Jing, Xiaoping, Jollet, Cécile, Jouve, Jean, Kumaran, Sindhujha, Labit, Loïc, Leblanc, Sébastien, Lebrin, Victor, Lecocq, Matthieu, Liu, Hongbang, Liu, Kainan, Liu, Xiwen, Mandujano, Roberto Carlos, Meregaglia, Anselmo, Navas-Nicolas, Diana, Ning, Zhe, Niu, Yujie, Perrot, Frédéric, Rajan, Rebin Karaparambil, Rasheed, Reem, Rebii, Abdel, Roche, Mathieu, Santos, Cayetano, Settimo, Mariangela, Sun, Yunhua, Tang, Jingzhe, Troni, Giancarlo, Viaud, Benoit, Wang, Chung-Hsiang, Wang, Jian, Wang, Yangfu, Wang, Zhimin, Wu, Diru, Wurtz, Jacques, Xie, Wan, Xu, Jilei, Xu, Jinghuan, Xu, Meihang, Yang, Chengfeng, Yermia, Frédéric, Zhang, Junwei, Zhang, Siyuan
Format:	Preprint
Published:	2025
Subjects:	Instrumentation and Detectors High Energy Physics - Experiment
Online Access:	https://arxiv.org/abs/2505.05586
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_version_	1866910934611525632
author	Walker, Pablo Ochoa-Ricoux, Juan Pedro Abusleme, Angel Campeny, Agustin Bongrand, Mathieu Bordereau, Clément Busto, José Cabrera, Anatael Callier, Stéphane Calvez, Steven Cerna, Cédric Chabot, Thomas Chen, Po-An Chen, Guoming Chu, Ziliang Claverie, Gérard De La Taille, Christophe Demonchy, Charles-Edouard Di Lorenzo, Selma Conforti Druillole, Frédéric Fan, Lei Fournier, Amélie Han, Yang He, Miao Hellmuth, Patrick Herrera, Rafael Hsiung, Yee Hu, Bei-Zhen Hu, Jun Huang, Guihong Huang, Yongbo Huss, Cédric Imbert, Léonard Jacobi, Adrienne Jeria, Ignacio Jiang, Xiaoshan Jing, Xiaoping Jollet, Cécile Jouve, Jean Kumaran, Sindhujha Labit, Loïc Leblanc, Sébastien Lebrin, Victor Lecocq, Matthieu Liu, Hongbang Liu, Kainan Liu, Xiwen Mandujano, Roberto Carlos Meregaglia, Anselmo Navas-Nicolas, Diana Ning, Zhe Niu, Yujie Perrot, Frédéric Rajan, Rebin Karaparambil Rasheed, Reem Rebii, Abdel Roche, Mathieu Santos, Cayetano Settimo, Mariangela Sun, Yunhua Tang, Jingzhe Troni, Giancarlo Viaud, Benoit Wang, Chung-Hsiang Wang, Jian Wang, Yangfu Wang, Zhimin Wu, Diru Wurtz, Jacques Xie, Wan Xu, Jilei Xu, Jinghuan Xu, Meihang Yang, Chengfeng Yermia, Frédéric Zhang, Junwei Zhang, Siyuan
author_facet	Walker, Pablo Ochoa-Ricoux, Juan Pedro Abusleme, Angel Campeny, Agustin Bongrand, Mathieu Bordereau, Clément Busto, José Cabrera, Anatael Callier, Stéphane Calvez, Steven Cerna, Cédric Chabot, Thomas Chen, Po-An Chen, Guoming Chu, Ziliang Claverie, Gérard De La Taille, Christophe Demonchy, Charles-Edouard Di Lorenzo, Selma Conforti Druillole, Frédéric Fan, Lei Fournier, Amélie Han, Yang He, Miao Hellmuth, Patrick Herrera, Rafael Hsiung, Yee Hu, Bei-Zhen Hu, Jun Huang, Guihong Huang, Yongbo Huss, Cédric Imbert, Léonard Jacobi, Adrienne Jeria, Ignacio Jiang, Xiaoshan Jing, Xiaoping Jollet, Cécile Jouve, Jean Kumaran, Sindhujha Labit, Loïc Leblanc, Sébastien Lebrin, Victor Lecocq, Matthieu Liu, Hongbang Liu, Kainan Liu, Xiwen Mandujano, Roberto Carlos Meregaglia, Anselmo Navas-Nicolas, Diana Ning, Zhe Niu, Yujie Perrot, Frédéric Rajan, Rebin Karaparambil Rasheed, Reem Rebii, Abdel Roche, Mathieu Santos, Cayetano Settimo, Mariangela Sun, Yunhua Tang, Jingzhe Troni, Giancarlo Viaud, Benoit Wang, Chung-Hsiang Wang, Jian Wang, Yangfu Wang, Zhimin Wu, Diru Wurtz, Jacques Xie, Wan Xu, Jilei Xu, Jinghuan Xu, Meihang Yang, Chengfeng Yermia, Frédéric Zhang, Junwei Zhang, Siyuan
contents	The Jiangmen Underground Neutrino Observatory (JUNO) in southern China is designed to study neutrinos from nuclear reactors and natural sources to address fundamental questions in neutrino physics. Achieving its goals requires continuous operation over a 20-year period. The small photomultiplier tube (small PMT or SPMT) system is a subsystem within the experiment composed of 25600 3-inch PMTs and their associated readout electronics. The High Voltage Splitter (HVS) is the first board on the readout chain of the SPMT system and services the PMTs by providing high voltage for biasing and by decoupling the generated physics signal from the high-voltage bias for readout, which is then fed to the front-end board. The necessity to handle high voltage, manage a large channel count, and operate stably for 20 years imposes significant constraints on the physical design of the HVS. This paper serves as a comprehensive documentation of the HVS board: its role in the SPMT readout system, the challenges in its design, performance and reliability metrics, and the methods employed for production and quality control.
format	Preprint
id	arxiv_https___arxiv_org_abs_2505_05586
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	The High Voltage Splitter board for the JUNO SPMT system Walker, Pablo Ochoa-Ricoux, Juan Pedro Abusleme, Angel Campeny, Agustin Bongrand, Mathieu Bordereau, Clément Busto, José Cabrera, Anatael Callier, Stéphane Calvez, Steven Cerna, Cédric Chabot, Thomas Chen, Po-An Chen, Guoming Chu, Ziliang Claverie, Gérard De La Taille, Christophe Demonchy, Charles-Edouard Di Lorenzo, Selma Conforti Druillole, Frédéric Fan, Lei Fournier, Amélie Han, Yang He, Miao Hellmuth, Patrick Herrera, Rafael Hsiung, Yee Hu, Bei-Zhen Hu, Jun Huang, Guihong Huang, Yongbo Huss, Cédric Imbert, Léonard Jacobi, Adrienne Jeria, Ignacio Jiang, Xiaoshan Jing, Xiaoping Jollet, Cécile Jouve, Jean Kumaran, Sindhujha Labit, Loïc Leblanc, Sébastien Lebrin, Victor Lecocq, Matthieu Liu, Hongbang Liu, Kainan Liu, Xiwen Mandujano, Roberto Carlos Meregaglia, Anselmo Navas-Nicolas, Diana Ning, Zhe Niu, Yujie Perrot, Frédéric Rajan, Rebin Karaparambil Rasheed, Reem Rebii, Abdel Roche, Mathieu Santos, Cayetano Settimo, Mariangela Sun, Yunhua Tang, Jingzhe Troni, Giancarlo Viaud, Benoit Wang, Chung-Hsiang Wang, Jian Wang, Yangfu Wang, Zhimin Wu, Diru Wurtz, Jacques Xie, Wan Xu, Jilei Xu, Jinghuan Xu, Meihang Yang, Chengfeng Yermia, Frédéric Zhang, Junwei Zhang, Siyuan Instrumentation and Detectors High Energy Physics - Experiment The Jiangmen Underground Neutrino Observatory (JUNO) in southern China is designed to study neutrinos from nuclear reactors and natural sources to address fundamental questions in neutrino physics. Achieving its goals requires continuous operation over a 20-year period. The small photomultiplier tube (small PMT or SPMT) system is a subsystem within the experiment composed of 25600 3-inch PMTs and their associated readout electronics. The High Voltage Splitter (HVS) is the first board on the readout chain of the SPMT system and services the PMTs by providing high voltage for biasing and by decoupling the generated physics signal from the high-voltage bias for readout, which is then fed to the front-end board. The necessity to handle high voltage, manage a large channel count, and operate stably for 20 years imposes significant constraints on the physical design of the HVS. This paper serves as a comprehensive documentation of the HVS board: its role in the SPMT readout system, the challenges in its design, performance and reliability metrics, and the methods employed for production and quality control.
title	The High Voltage Splitter board for the JUNO SPMT system
topic	Instrumentation and Detectors High Energy Physics - Experiment
url	https://arxiv.org/abs/2505.05586

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