Optimization design of a 20-in. elliptical MCP-PMT

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• 作者：Ping Chen^a ; ^b ; ^c ; ^{chenping@opt.cn" class="auth_mail" title="E-mail the corresponding author} ; Jinshou Tian^a ; ^c ; Yonglin Wei^a ; Hulin Liu^a ; Xiaofeng Sai^a ; Jianping He^a ; Lin Chen^a ; ^b ; Xing Wang^a ; Yu Lu^a
• 关键词：Optimization design simulation ; 20  ; in. PMT ; Transit time spread ; Collection efficiency
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：841
• 期：Complete
• 页码：104-108
• 全文大小：1156 K

文摘

This paper describes the simulation work for optimizing the newly developed 20-in. elliptical MCP-PMT by enlarging the outside diameters of the two focusing electrodes and the open area of the glass bulb. Effects of biasing voltages applied to the two focusing electrodes and the MCP input facet are studied. With the new design of the 20 in. MCP-PMT, the transit time spread of the prototype can be less than 3 ns and the collection efficiency is as much as the present prototype.