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| 楔条形阳极探测器的性能测试与分析 | |
| 引用本文： | 刘永安,赵宝升,朱香平,缪震华,张兴华,邹玮.楔条形阳极探测器的性能测试与分析[J].光子学报,2009,38(4):750-755. |
| 作者姓名： | 刘永安 赵宝升 朱香平 缪震华 张兴华 邹玮 |
| 作者单位： | 1. 中国科学院西安光学精密机械研究所,瞬态光学与光子技术国家重点实验室,西安,710119;中国科学院研究生院,北京,100049 2. 中国科学院西安光学精密机械研究所,瞬态光学与光子技术国家重点实验室,西安,710119 |
| 基金项目： | 中国科学院知识创新工程方向性研究项目 |
| 摘 要： | 对研制出的楔条形阳极探测器进行了性能分析与实验测试，分析了引起成像畸变的三个重要因素：到达阳极的电子云半径大小、阳极的电容耦合效应和电子读出电路的性能.电子云半径的过大或过小会相应引起成像的 “S”畸变或调制畸变，电容耦合效应和电路噪音也均会引起成像的畸变.此外，测试了探测器的暗计数率、线性度以及空间分辨率等性能，同时分析了微通道板在光照情况下的增益特性和暗计数的一般特性及其产生原因.测试结果表明探测器的成像畸变很小、线性关系较好，空间分辨率优于150 μm，微通道板的暗计数率低于0.4 count/s*cm2. |
| 关 键 词： | 阳极探测器 楔条形阳极收集器 微通道板 暗计数 分辨率 |
| 收稿时间： | 2007-12-05 |
| 修稿时间： | 2008-01-16 |
Analysis and Testing of Wedge-and-Strip Anode Detector Characteristics |
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| LIU Yong-an,ZHAO Bao-sheng,ZHU Xiang-ping,MIAO Zhen-hua,ZHANG Xing-hua,ZOU Wei.Analysis and Testing of Wedge-and-Strip Anode Detector Characteristics[J].Acta Photonica Sinica,2009,38(4):750-755. | |
| Authors: | LIU Yong-an ZHAO Bao-sheng ZHU Xiang-ping MIAO Zhen-hua ZHANG Xing-hua ZOU Wei |
| Institution: | 1. Graduate University of Chinese Academy of Sciences,Beijing 10039,China 2. State Key Laboratory of Transient Optics and Photonics,Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi′an 710119,China |
| Abstract: | The characteristics of WSA(Wedge and strip anode)detector are analyzed and tested.Three factors which can induce the image distortion,the charge cloud size which collected by WSA,the capacitive coupling between different electrodes and the performance of electronics,are discussed.Modulation and "S" distortion can be appeared if the charge cloud is too small or too large.Image distortion can be also introduced by inter-electrode capacitance and electronic noise.Moreover,the position resolution,image linearit... |
| Keywords: | Anode dector Wedge and strip anodes collector Micro-channel plate Dark counting Resolution |
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