[1]苏德坦,李 珅,孙建宁,等.微通道板型光电倍增管分压比与能量分辨率关系研究[J].红外技术,2018,40(12):1125-1129.[doi:10.11846/j.issn.1001_8891.201812002]
 SU Detan,LI Shen,SUN Jianning,et al.Study on the Relationship between Voltage Divider Ratio and Energy Resolution of Microchannel Plate Photomultiplier [J].Infrared Technology,2018,40(12):1125-1129.[doi:10.11846/j.issn.1001_8891.201812002]
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微通道板型光电倍增管分压比与能量分辨率关系研究
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
40
期数:
2018年第12期
页码:
1125-1129
栏目:
出版日期:
2018-12-21

文章信息/Info

Title:
Study on the Relationship between Voltage Divider Ratio and
Energy Resolution of Microchannel Plate Photomultiplier
文章编号:
TN152
作者:
苏德坦2李 珅2孙建宁12黄国瑞2司曙光12李 冬2金 真2 任 玲2王兴超2高 峰3杨玉珍3钱 森3刘术林3张昊达2 徐海洋2金睦淳2乔芳建2曹宜起2谢 飞2
1. 微光夜视技术重点实验室,陕西 西安 710065;2. 北方夜视技术股份有限公司,江苏 南京 211106;
3. 中国科学院高能物理研究所,北京 100049
Author(s):
SU Detan2LI Shen2SUN Jianning12HUANG Guorui2SI Shuguang2LI Dong2JIN Zhen2 REN Ling2WANG Xingchao2GAO Feng3YANG Yuzhen3QIAN Sen3LIU Shulin3ZHANG Haoda2 XU Haiyang2JIN Muchun2QIAO Fangjian2CAO Yiqi2XIE Fei2
1. Science and Technology on Low-light-level Night Vision Laboratory, Xi’an 710065, China;
2. North Night Vision Technology Co. Ltd, Nanjing 211106, China;
3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
关键词:
光电倍增管MCP能量分辨率分压器间隙电压反向电压
Keywords:
photomultiplier tubesMCPenergy resolutionvoltage dividergap voltagereverse voltage
分类号:
1001-8891(2018)12-1125-05
DOI:
10.11846/j.issn.1001_8891.201812002
文献标志码:
A
摘要:
为了提升微通道板型光电倍增管(MCP-PMT)能量分辨率,研究不同分压比对能量分辨率的影响,通过分析光电子从入射到倍增的过程,研究影响MCP-PMT能量分辨率的因素。通过调节光电倍增管(PMT)聚焦极电压、两片通道板分压以及通道板间隙电压解决了增益动态范围小、能量分辨率差的问题。实验结果表明,减小聚焦极电压可提高分辨率但收集效率会降低,提高MCP2电压后分辨率略有降低同时动态范围大幅提高,通道板间加反向电压可显著提升能量分辨率。根据实验结果,设计了一种MCP1与MCP2分压比1:1.6、通道板间隙加-35 V反向电压的分压器,将其应用于50只样管,并对样管进行测试,其平均能量分辨率从44减小到33,有效地改善了微通道板型光电倍增管的能量分辨率。
Abstract:
To improve the energy resolution of microchannel plate photomultiplier tubes(MCP-PMT), the influence of different voltage dividers on energy resolution is studied. The factors affecting the energy resolution of MCP-PMT were studied by analyzing the process of photoelectron from incidence to the multiplication stage. By adjusting the voltage of the PMT focusing electrode, two pieces of the MCP, and the gap voltage of the MCP, the problems of low dynamic range and poor energy resolution were solved. The experimental results show that the energy resolution can be improved by decreasing the focus voltage; but this might result in the reduction of collection efficiency. Improving the MCP2 voltage can slightly reduce the resolution and significantly increase the dynamic gain range. The energy resolution can be significantly improved by applying reverse voltage between the MCPs. According to the results of the experiment, a voltage divider with voltage ratio 1:1.6 for MCP1 and MCP2 and -35 V reverse voltage between two MCPs is designed, It was applied and tested on 50 sample tubes, and the average energy resolution of the tested sample tubes was reduced from 44 to 33. The test results show that the voltage divider can effectively improve the energy resolution of MCP-PMT.

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备注/Memo

备注/Memo:
收稿日期:2017-10-10;修订日期:2018-08-04.
作者简介:苏德坦(1963-),男,研究员级高级工程师,主要从事微光像增强器的研究工作。
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)。
更新日期/Last Update: 2018-12-19