| 适用于电子倍增器件的电荷灵敏放大器的设计 |
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| 引用本文： | 张斌婷,闫保军,刘术林,温凯乐,王玉漫,谷建雨,姚文静.适用于电子倍增器件的电荷灵敏放大器的设计[J].红外技术,2022,44(8):792-797. |
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| 作者姓名： | 张斌婷 闫保军 刘术林 温凯乐 王玉漫 谷建雨 姚文静 |
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| 作者单位： | 1.中国科学院高能物理研究所 核探测与核电子学国家重点实验室, 北京 100049 |
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| 基金项目： | 国家自然科学基金面上项目11675278国家自然科学基金面上项目11975017国家自然科学基金重点项目11535014核探测与核电子学国家重点实验室资助项目SKLPDE-ZZ-202015核探测与核电子学国家重点实验室资助项目SKLPDE-ZZ-202102 |
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| 摘 要： | 介绍了一种自主研制的新型电荷灵敏型三级放大器，其电路设计主要采用ADA4817高速低噪声集成运算放大芯片，该三级放大器噪声低、稳定性好、电路结构简单、性价比高、检修更换方便，可以不失真地放大上升时间在ns级的信号，放大器输出信号质量优异，可配合后续的多道分析器MCA8000D读取微通道板（microchannel plate，MCP）组件或单通道电子倍增器（single-channel electron multiplier，CEM）的单光电子谱，测试结果表明:自主设计的ADA4817型放大器在一定的方波标定脉冲信号下，其基线的宽度小于2 mV，上升沿时间约为800 ns，幅值约为40 mV，性能接近或略优于A250型放大器，可以更好地配合后续的多道分析器MCA8000D进行输出波形的分析和处理，完全满足MCP或CEM探测器的脉冲性能测试需求。
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| 关 键 词： | 电子倍增器 脉冲计数 单光电子谱 电荷灵敏放大器 |
| 收稿时间： | 2021-07-05 |
Design of Charge-Sensitive Amplifiers for Electron Multipliers |
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| Affiliation: | 1.State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China2.School of Physical Sciences, University of Chinese Academy of Science, Beijing 100049, China3.School of Physics, Nanjing University, Nanjing 210093, China4.School of Physical Science and Engineering Technology, Guangxi University, Nanning 530004, China5.School of Physics and Electronics, Henan University, Kaifeng 475001, China |
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| Abstract: | A new type of charge-sensitive three-stage amplifier was developed. The circuit design mainly adopted an ADA4817 high-speed and low-noise integrated operational amplifier chip. The three-stage amplifier had low noise, good stability, a simple circuit structure, high cost performance, and ease of maintenance. It could amplify signals with rise time in nanoseconds without distortion, and the output signal quality of the amplifier was excellent. It was used with a multi-channel analyzer MCA8000D to read a single photoelectron spectrum of a microchannel plate (MCP) assembly or a single channel electron multiplier (CEM). The test results show that the custom-made amplifier fully satisfied the pulse performance test requirements of MCP or CEM detectors, and its technical indicators were close to those of imported A250 amplifiers. |
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