Single electron counting using a dual MCP assembly.

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Title: Single electron counting using a dual MCP assembly.
Authors: Yang, Yuzhen1,2,3, Liu, Shulin2,3 liusl@ihep.ac.cn, Zhao, Tianchi2,3,4 tianchi@u.washington.edu, Yan, Baojun2,3, Wang, Peiliang2,3, Yu, Yang2,3,5, Lei, Xiangcui2,3, Yang, Luping2,3,6, Wen, Kaile2,3, Qi, Ming1, Heng, Yuekun2,3
Source: Nuclear Instruments & Methods in Physics Research Section A. Sep2016, Vol. 830, p438-443. 6p.
Subjects: Electron counters, Microchannel plates, Pulse height analyzers, Electric potential, Electrodes
Abstract: The gain, pulse height resolution and peak-to-valley ratio of single electrons detected by using a Chevron configured Microchannel Plate (MCP) assembly are studied. The two MCPs are separated by a 280 µm gap and are biased by four electrodes. The purpose of the study is to determine the optimum bias voltage arrangements for single electron counting. By comparing the results of various bias voltage combinations, we conclude that good performance for the electron counting can be achieved by operating the MCP assembly in saturation mode. In addition, by applying a small reverse bias voltage across the gap while adjusting the bias voltages of the MCPs, optimum performance of electron counting can be obtained. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:The gain, pulse height resolution and peak-to-valley ratio of single electrons detected by using a Chevron configured Microchannel Plate (MCP) assembly are studied. The two MCPs are separated by a 280 µm gap and are biased by four electrodes. The purpose of the study is to determine the optimum bias voltage arrangements for single electron counting. By comparing the results of various bias voltage combinations, we conclude that good performance for the electron counting can be achieved by operating the MCP assembly in saturation mode. In addition, by applying a small reverse bias voltage across the gap while adjusting the bias voltages of the MCPs, optimum performance of electron counting can be obtained. [ABSTRACT FROM AUTHOR]
ISSN:01689002
DOI:10.1016/j.nima.2016.06.035