大面积光电倍增管地磁场效应测试系统

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

Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (2): 20401-020401.doi: 10.11889/j.0253-3219.2018.hjs.41.020401

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles Next Articles

Test system for the earth-magnetic effect of large-area photomultipliers

MA Yichao¹, ZHU Na¹, QIAN Sen^2,3, GAO Feng^3,4, HU Jianrun^3,4, ZHANG Guoqing³, NING Feipeng³, DANG Hongshe¹

1. Shaanxi University of Science and Technology, Xi'an 710021, China;
2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
3. State Key Laboratory of Particle Detection and Electronics, Beijing 100049, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2017-03-17 Revised:2017-04-29 Online:2018-02-10 Published:2018-02-06
Supported by:
Supported by National Natural Science Foundation of China (No.11175198, No.11475209)

Abstract

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.

Key words: PMT, Magnetic field, Qualitative shielding, Quantitative shielding

CLC Number:

TN492

MA Yichao, ZHU Na, QIAN Sen, GAO Feng, HU Jianrun, ZHANG Guoqing, NING Feipeng, DANG Hongshe. Test system for the earth-magnetic effect of large-area photomultipliers[J].Nuclear Techniques, 2018, 41(2): 20401-020401.

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Test system for the earth-magnetic effect of large-area photomultipliers

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