Thermal management for the underwater frontend and readout electronics of JUNO 20‑inch PMTs

作     者：Yangfu Wang Xiaoshan Jiang Jun Hu Peiliang Wang Lei Fan Shaojing Hou Zhe Ning Yunhua Sun Xiongbo Yan Zheng Wang Ziyue Yan Peiran Ye Jie Zhang Alberto Garfagnini Antonio Bergnoli Riccardo Brugnera Beatrice Jelmini Filippo Marini Marco Grassi Mariia Redchuk Andrea Serafini Katharina von Sturm 

作者机构：Institute of High Energy PhysicsBeijingChina University of China Academy of SciencesBeijing 100049China INFN Sezione di PadovaPaduaItaly Dipartimento di Fisica e AstronomiaUniversita di PadovaPaduaItaly 

出 版 物：《Radiation Detection Technology and Methods》 (辐射探测技术与方法（英文）)

年 卷 期：2023年第7卷第3期

页      面：418-426页

核心收录：

学科分类：082704[工学-辐射防护及环境保护] 08[工学] 0827[工学-核科学与技术] 

基　　金：This work was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA100102). 

主　　题：Thermal management JUNO PMT Electronics 

摘      要：Background The Jiangmen underground neutrino observatory(JUNO)is a new generation of long-term operation neutrino experimental platform under construction in Jiangmen,Guangdong province of southern China.The underwater frontend and readout electronics(F&R electronics)are placed nearby the 20-inch PMTs and readout current signals from three PMTs.The electronics are sealed in a stainless-steel underwater box to keep them dry,and temperature control of the electronics plays a significant role in their reliability.Methods A conductive cooling structure based on the passive cooling method is designed for the 20-inch PMT F&R electronics.Both numerical simulation and experimental tests were performed to evaluate the cooling structures thermal performance.Results The results show that the case temperature of the respective chip for 20-inch PMT F&R electronics is less than 30℃in ambient still water.Conclusion The case temperature of the respective chip meets the strict temperature requirement for the F&R electronics.The JUNO collaboration has adopted this cooling structure for the 20-inch PMT readout electronics.