| 微通道板的输出信噪比特性研究 |
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| 引用本文： | 崔东旭,郑少成,邱亚峰,钱芸生,常本康.微通道板的输出信噪比特性研究[J].真空科学与技术学报,2012,32(6):468-471. |
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| 作者姓名： | 崔东旭 郑少成 邱亚峰 钱芸生 常本康 |
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| 作者单位： | 1. 南京理工大学电子工程与光电技术学院 南京 210094;西安应用光学研究所 西安 710065
2. 南京理工大学电子工程与光电技术学院 南京 210094 |
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| 基金项目： | 国防重点预研项目(40405030202)资助 |
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| 摘 要： | 阐述了微通道板(MCP)输出信噪比的概念内涵,提出了MCP输出信噪比测试的具体实现方法。设计了MCP噪声特性分析系统,该系统由真空系统、电子枪组件、高压电源系统、信号处理模块、数据采集和控制模块、计算机和测试软件等部件组成。利用热阴极组成面电子源,产生的面电子流作为输入信号,采用硬件滤波和软件数字滤波相结合的方法对MCP的输出电子流信号进行了处理,实现了MCP输出信噪比测试。利用该系统在不同测试条件下对MCP的输出信噪比进行了测试,并对测试结果进行了分析。
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| 关 键 词： | 微通道板 噪声 输出信噪比 电子枪 |
Output Signal-to-Noise Ratio Characteristics of Microchannel Plate |
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| Cui Dongxu
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Zheng Shaocheng
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Qiu Yafeng
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Qian Yunsheng
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Chang Benkang.Output Signal-to-Noise Ratio Characteristics of Microchannel Plate[J].JOurnal of Vacuum Science and Technology,2012,32(6):468-471. |
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| Authors: | Cui Dongxu Zheng Shaocheng Qiu Yafeng Qian Yunsheng Chang Benkang |
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| Affiliation: | 1(1.Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science and Technology,Nanjing 210094,China;2.Xi′an Institute of Applied Optics,Xi′an 710065,China) |
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| Abstract: | We addressed the characteristics of the output signal-to-noise ratio of the micro-channel plate(MCP).The lab-built,computer automatized setup,dedicated to the evaluation of the characteristics of the output signal-to-noise(SNR) of the MCP,consists of a vacuum system,a surface electron source,a high voltage power supply,a signal processing module,data acquisition and control module,and the software.In the newly-developed testing technique,the hot cathode,used as the surface electron source,generates a surface electron stream to provide the input signal;next,the output electron stream of the MCP is processed with a combination of the hardware filter and the digital filter software;and finally,the output SNR of the MCP is evaluated.The output SNR of the MCP was tested under different conditions,and the tested results were tentatively discussed. |
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| Keywords: | Microchannel plates Noise Output SNR Electron gun |
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