| 一种大尺寸微通道板型光电倍增管 |
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| 引用本文： | 孙建宁,任玲,丛晓庆,黄国瑞,金睦淳,李冬,刘虎林,乔芳建,钱森,司曙光,田进寿,王兴超,王贻芳,韦永林,辛丽伟,张昊达,赵天池. 一种大尺寸微通道板型光电倍增管[J]. 红外与激光工程, 2017, 46(4): 402001-0402001(5). DOI: 10.3788/IRLA201746.0402001 |
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| 作者姓名： | 孙建宁 任玲 丛晓庆 黄国瑞 金睦淳 李冬 刘虎林 乔芳建 钱森 司曙光 田进寿 王兴超 王贻芳 韦永林 辛丽伟 张昊达 赵天池 |
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| 作者单位： | 1.北方夜视技术股份有限公司,江苏 南京 211100; |
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| 基金项目： | 国家重点研发计划重大科学仪器设备开发专项（2016YFF0100400） |
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| 摘 要： | 针对高能物理、核物理等国家大科学装置对核心探测器件的需求，研究不同于金属打拿极型倍增系统的大尺寸微通道板型光电倍增管。该光电倍增管最主要的特点是具有20 in（1 in=2.54 cm）的低本底玻壳和微通道板型倍增极结构，使用Sb-K-Cs阴极作为光电转换阴极，该阴极对350~450 nm波段光子的量子效率高，倍增极采用两片微通道板，在电压比较低的情况下可实现107的倍增能力，从而提高了光电倍增管的探测效率和单光子探测能力。与传统的金属打拿极型光电倍增管相比，20 in微通道板型光电倍增管是一种全新的产品结构，具有单光子峰谷比高、本底低、响应时间快、后脉冲比例小等特点。
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| 关 键 词： | 光电倍增管 微通道板 量子效率 低本底 |
| 收稿时间： | 2016-08-05 |
Large-area micro-channel plate photomultiplier tube |
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| Affiliation: | 1.North Night Vision Technology Co.,Ltd,Nanjing 211100,China;2.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;3.Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China |
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| Abstract: | According to the requirement of detector in high energy physics and nuclear physics national scientific equipment, the large-area micro-channel plate photomultiplier(MCP-PMT) different from dynode PMT was researched. The large-area MCP-PMT had low-background glass and microchannel plate multiplier. Using Sb-K-Cs as photocathode, MCP-PMT enjoyed very high quantum efficiency at 350-450 nm. With double MCPs as electron amplifier, the gain could reach 107. The detection efficiency and single photon detection of large-area PMT was improved. Compared with conventional dynode PMT, this MCP-PMT is a completely new design in structure and has better ratio of spectrum peak to valley, high gain, better anode uniformity, fast response time in single photoelectron detection. |
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