大面积光电倍增管地磁场效应测试系统

马毅超; 朱纳; 钱森; 高峰; 胡健润; 张国庆; 宁飞鹏; 党宏社

doi:10.11889/j.0253-3219.2018.hjs.41.020401

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大面积光电倍增管地磁场效应测试系统

核电子学与仪器 | 更新时间：2021-05-19

- 大面积光电倍增管地磁场效应测试系统
- Test system for the earth-magnetic effect of large-area photomultipliers
- 核技术 2018年41卷第2期文章编号：020401
- 作者机构：
  
  1.陕西科技大学西安 710021
  2.中国科学院高能物理研究所北京 100049
  3.核探测与核电子学国家重点实验室北京 100049
  4.中国科学院大学北京 100049
- 作者简介：
  
  [ "马毅超, 男, 1984年出生, 2011年于中国科学技术大学获博士学位, 讲师, 研究领域为高速数字电路设计与ASIC设计", "MA Yichao, male, born in 1984, graduated from University of Science and Technology of China with a doctoral degree in 2011, lecturer, focusing on high speed digital circuit design and ASIC design" ]
  钱森, E-mail:qians@ihep.ac.cnQIAN Sen, E-mail: qians@ihep.ac.cn
- 基金信息：
  
  国家自然科学基金(11175198);国家自然科学基金(11475209)
- DOI：10.11889/j.0253-3219.2018.hjs.41.020401
  中图分类号： TN492
- 收稿日期：2017-03-17，
  
  修回日期：2017-04-29，
  
  纸质出版日期：2018-02-10
- 稿件说明：
移动端阅览
马毅超, 朱纳, 钱森, 等. 大面积光电倍增管地磁场效应测试系统[J]. 核技术, 2018,41(2):020401

Yichao MA, Na ZHU, Sen QIAN, et al. Test system for the earth-magnetic effect of large-area photomultipliers[J]. Nuclear techniques, 2018, 41(2): 020401
马毅超, 朱纳, 钱森, 等. 大面积光电倍增管地磁场效应测试系统[J]. 核技术, 2018,41(2):020401 DOI： 10.11889/j.0253-3219.2018.hjs.41.020401.

Yichao MA, Na ZHU, Sen QIAN, et al. Test system for the earth-magnetic effect of large-area photomultipliers[J]. Nuclear techniques, 2018, 41(2): 020401 DOI： 10.11889/j.0253-3219.2018.hjs.41.020401.

摘要

大面积型光电倍增管（Photomultiplier Tube，PMT）广泛应用于各种高能物理实验中，但它对磁场比较敏感，在有地磁场的情况下实验结果的可靠性难以保证。为此，需要在电磁屏蔽间内放置高磁导率磁屏蔽罩定量屏蔽磁场，或在电磁屏蔽室缠绕三围螺线管线圈定量屏蔽地磁场。利用实验虚拟仪器工程平台，基于常用通信协议，建立了一套光电倍增管磁场效应在线测试系统，实现对光斑尺寸和磁场强度的自动调节，光电倍增管阳极信号的实时采集、存储和显示，可用于研究光电倍增管的地磁场效应。

Abstract

Background

Large area photomultiplier tubes (PMTs) have been increasingly applied to high energy physics experiments

reliable results of PMTs' parameters may not be obtained without earth-magnetic (EM) shielding.

Purpose

This study aims to build a test system for EM effect of PMT and obtain its properties in different magnetic field intensity.

Methods

Based on the current PMT performance testing system

high-permeability material is used to qualitatively shield the magnetic field; and the EM shielded room entwined with solenoid coil is used to quantitatively shield the magnetic field. Based on the RS-232

universal serial bus (USB) and local area network (LAN) interface communication protocols

test software is developed in LabVIEW.

Results & Conclusion

The high voltage supply

light source intensity

magnet strength can be remotely automatically adjusted. And anode signal of PMT is real-time sampled and stored. It is helpful for studying earth-magnetic effect of large-area photomultipliers with this system.

关键词

Keywords

references

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