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打拿极光电倍增管逐级增益自动测试系统

刘欣妍 钱芸生 魏静雯

刘欣妍, 钱芸生, 魏静雯. 打拿极光电倍增管逐级增益自动测试系统[J]. 应用光学, 2022, 43(6): 1117-1123. doi: 10.5768/JAO202243.0604010
引用本文: 刘欣妍, 钱芸生, 魏静雯. 打拿极光电倍增管逐级增益自动测试系统[J]. 应用光学, 2022, 43(6): 1117-1123. doi: 10.5768/JAO202243.0604010
LIU Xinyan, QIAN Yunsheng, WEI Jingwen. Automatic test system for progressive gain of dynode photomultiplier tube[J]. Journal of Applied Optics, 2022, 43(6): 1117-1123. doi: 10.5768/JAO202243.0604010
Citation: LIU Xinyan, QIAN Yunsheng, WEI Jingwen. Automatic test system for progressive gain of dynode photomultiplier tube[J]. Journal of Applied Optics, 2022, 43(6): 1117-1123. doi: 10.5768/JAO202243.0604010

打拿极光电倍增管逐级增益自动测试系统

doi: 10.5768/JAO202243.0604010
基金项目: 国家重大科学仪器设备研制重点项目(2016YFF0100400)
详细信息
    作者简介:

    刘欣妍(1998—),女,硕士研究生,主要从事微光成像器件测试技术研究。E-mail:liuxinyann@yeah.net

    通讯作者:

    钱芸生(1968—),男,博士,教授,主要从事微光与红外成像器件与系统及相关测试技术、原位测试余分析、光电测试、图像处理和仿真研究。E-mail:yshqian@mail.njust.edu.cn

  • 中图分类号: TN206

Automatic test system for progressive gain of dynode photomultiplier tube

  • 摘要: 逐级增益是评价打拿极光电倍增管(photomultiplier tube, PMT)性能的重要参数之一,目前国内仅有一台逐级增益测试系统,依靠人工操作,测试效率不高。为提高逐级增益测试效率,设计了一套打拿极PMT逐级增益自动测试系统。该系统使用由可控光阑、电动挡板等组成的自动光源实现光源输出强度连续可调,并通过控制高压模块、分压器模块和继电器模块实现逐级电压的通断。利用精度为0.01 nA的电流计模块完成信号的采集、处理和传输,实现对逐级增益的自动测量。实验证明,该系统可有效测量打拿极PMT的逐级增益特性,测试重复性在2%以内,满足测试需求。
  • 图  1  盒栅状打拿极PMT的基本结构示意图

    Fig.  1  Schematic diagram of basic structure for box-grid type of dynode PMT

    图  2  测试系统原理框图

    Fig.  2  Block diagram of test system principle

    图  3  测试系统示意图

    Fig.  3  Schematic diagram of test system

    图  4  继电器阵列原理图

    Fig.  4  Schematic diagram of relay array

    图  5  测试系统软件界面

    Fig.  5  Interface of test system software

    图  6  增益特性曲线

    Fig.  6  Fitting curves of gain characteristics

    表  1  不同工作电压下3个PMT的逐级增益

    Table  1  Progressive gain of three PMT at different operating voltages

    工作电压/V不同管号PMT的增益
    91669171R09289
    3003.67×1024.84×1021.48×102
    4005.73×1038.01×1031.89×103
    5003.60×1046.87×1041.17×104
    6001.18×1064.07E×1056.43×104
    7001.21×1061.90×1062.27×105
    8005.15×1068.00×1069.54×105
    9001.44×1072.70×1072.69×106
    10003.50×1077.92×1077.20×106
    11001.10×1082.22×1081.58×107
    12002.82×1086.76×1084.77×107
    13008.82×1081.30×1098.76×107
    下载: 导出CSV

    表  2  PPH号PMT逐级增益测量结果

    Table  2  Progressive gain measurement results for PMT of PPH

    级数测试次数重复性/%
    123456
    16.2726.1866.3226.1446.0676.2671.53
    26.4836.5276.4846.4826.5416.5350.44
    35.2535.2895.2615.2675.2795.2690.24
    45.7355.6795.6245.5955.6495.6290.87
    52.9893.0123.0043.0063.0113.0050.28
    62.7192.7392.7412.7482.7442.7450.38
    74.9844.9764.9584.954.9814.9680.27
    85.3345.3635.3475.3655.3795.3670.30
    93.8793.9043.9093.8823.9083.9010.34
    103.1383.1383.1253.1503.1303.1400.28
    整管增益3.23×1063.27×1063.23×1063.15×1063.20×1063.7×1061.45
    下载: 导出CSV

    表  3  8160号PMT逐级增益测量结果

    Table  3  Progressive gain measurement results for PMT of 8160

    级数测试次数重复性/%
    123456
    111.08011.34211.30211.31611.30011.1490.95
    22.6262.6312.6302.6282.6352.6330.12
    32.6682.6372.6472.6422.6532.6500.40
    42.1402.0692.0882.0732.0842.0871.23
    51.9471.9281.9391.9351.9401.9430.34
    62.0822.0882.0852.0902.0832.0900.17
    72.4252.4102.4142.4172.4152.4180.21
    81.9531.9501.9481.9511.9451.9530.16
    92.0051.9972.0001.9961.9941.9990.19
    101.9051.9051.8991.9041.9001.9000.15
    111.8691.8561.8621.8651.8591.8670.27
    整管增益2.27×1042.18×1042.21×1042.20×1042.20×1042.21×1041.38%
    下载: 导出CSV

    表  4  PJ号PMT逐级增益测量结果

    Table  4  Progressive gain measurement results for PMT of PJ

    级数测试次数重复性/%
    123456
    13.8213.8433.8173.9983.8443.8331.78
    24.8844.8565.0804.8895.0414.8821.94
    37.0527.1407.0907.0997.0867.0480.48
    47.1467.1327.0257.0797.1827.1280.78
    58.5118.5828.4998.4688.4778.5020.47
    66.5776.5816.5416.6276.5446.5710.47
    78.858.8458.8508.8688.7558.8420.46
    86.7776.7356.7446.7576.6866.7380.45
    99.4009.4509.4369.3439.3059.3980.59
    整管增益2.97×1073.02×1073.0×1073.09×1072.98×1072.94×1071.71
    下载: 导出CSV

    表  5  高压电源输出和电流计输出6次测量结果

    Table  5  Six measurement results output by high-voltage power supply and galvanometer

    序号电压/V电流/μA序号电压/V电流/μA
    1996.01.58154999.81.5807
    21 001.01.579651 000.01.5823
    3998.51.580061 000.41.5803
    下载: 导出CSV
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  • 收稿日期:  2022-08-12
  • 修回日期:  2022-10-10
  • 刊出日期:  2022-11-14

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