真空电子技术Issue(1)：11-15,5.DOI:10.16540/j.cnki.cn11-2485/tn.2024.01.03
光电倍增管双电位聚焦系统设计研究
Design and Research of Dual Potential Focusing System for Photomultiplier Tubes
摘要
Abstract
The collection efficiency of the focusing system is a key factor affecting the performance of the photomultiplier tube.A dual potential focusing technique is proposed,which further focuses the elec-tron beam generated by the photocathode through secondary focusing.The COMSOL Multiphysics soft-ware is used to simulate and optimize parameters such as potential difference,focusing electrode diameter and height,resulting in a collection efficiency of over 92.1%.The prototype tube verification shows the gain of the photomultiplier tube is increased by 14.76%.关键词
光电倍增管/聚焦系统/双电位/收集效率Key words
Photomultiplier tube/Focusing system/Dual potential focusing system/Collection effi-ciency分类
电子信息工程引用本文复制引用
张杰,王浩东,邓涛,曹磊,朱德飞,方莉..光电倍增管双电位聚焦系统设计研究[J].真空电子技术,2024,(1):11-15,5.基金项目
国家重点研发计划资助项目(2021YFF0700600,2021YFF0700800) （2021YFF0700600,2021YFF0700800）
国家自然科学基金项目(U2241207) （U2241207）
