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A novel bowl-shaped microchannel plate with high electron collection efficiency and good time performance
Chen, Ping1,2,3,4,5; Tian, Jinshou4,5; Yuan, Xiaohui1,2,3; Wen, Wenlong4; Wang, Xing4; Guo, Lehui4; Liu, Hulin4; Wei, Yonglin4; Pei, Chengquan4; He, Kai4; Lu, Yu4; Sai, Xiaofeng4; Wu, Wenqing1,2,3; Deng, Yanqing1,2,3; Zhao, Xu1,2,3
Department精密物理量测量实验室
2019-08-21
Source PublicationNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN0168-9002;1872-9576
Volume936Pages:534-536
Contribution Rank1
Abstract

Owing to the severe loss of photoelectrons striking at the input electrode of conventional microchannel plate (MCP), photoelectron collection efficiency (CE) of devices based on traditional MCP fluctuates around the MCP open area ratio and cannot make a breakthrough. Photoelectron back scattering from the MCP surface also causes late pulses smearing timing and spatial performance. In this work, a novel bowl-shaped MCP with an open area ratio higher than 90% whose input electrode is coated by a thin film with high secondary electron emission yield (SEY) is proposed as an effective approach to improve CE and suppress late pulses. A three-dimensional MCP-PMT model is developed in CST Studio Suite to evaluate CE and time performance of the bowl-shaped MCP, and compared with the traditional one. Results show that CE of the PMT based on the bowl-shaped MCP is nearly 100% and the delayed pulse is less than 2%. This indicates that good temporal and spatial resolution can be achieved with the bowl-shaped MCP.

KeywordMicrochannel plate MCP MCP-PMT Collection efficiency Late pulse
DOI10.1016/j.nima.2018.11.145
Indexed BySCI
Language英语
WOS IDWOS:000471828100201
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31558
Collection精密物理量测量实验室
Corresponding AuthorChen, Ping
Affiliation1.Shanghai Jiao Tong Univ, Key Lab Laser Plasmas, Minist Educ, Shanghai 200240, Peoples R China
2.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China
3.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China
4.Chinese Acad Sci, XIOPM, Key Lab Ultrafast Photoelect Diagnost Technol, Xian 710119, Shaanxi, Peoples R China
5.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
Recommended Citation
GB/T 7714
Chen, Ping,Tian, Jinshou,Yuan, Xiaohui,et al. A novel bowl-shaped microchannel plate with high electron collection efficiency and good time performance[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2019,936:534-536.
APA Chen, Ping.,Tian, Jinshou.,Yuan, Xiaohui.,Wen, Wenlong.,Wang, Xing.,...&Zhao, Xu.(2019).A novel bowl-shaped microchannel plate with high electron collection efficiency and good time performance.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,936,534-536.
MLA Chen, Ping,et al."A novel bowl-shaped microchannel plate with high electron collection efficiency and good time performance".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 936(2019):534-536.
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