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The study of linearity and detection efficiency for 20″ photomultiplier tube

  • Anbo Yang
  • Zhimin WangEmail author
  • Zhonghua QinEmail author
  • Fengjiao Luo
  • Yuekun Heng
  • Haiqiong Zhang
  • Meihang Xu
  • Qun Ou Yang
Original Paper
  • 54 Downloads

Abstract

Background

The linearity and photon detection efficiency (PDE) are important parameters of photomultiplier tube (PMT), which need to be precisely measured with suitable techniques.

Purpose

To search good methods for linearity and PDE study of newly developed 20-inch PMT.

Methods

In this paper, we setup a testing system to use the average photoelectrons (P.E.) in pulse mode for linearity measurement with the result corrected for strong light. For the PDE measurement, we developed a relative method with a reference PMT whose efficiency is known to compare the measured PDE with both average charge and hit numbers.

Results

The measurements of PMT shows only 5% nonlinearity within 1000 P.E. and good PDE, the result of linearity’s corrected definition is closer to the real status of PMT.

Conclusions

The results show good charge and linearity response for newly developed 20-inch MCP PMT and dynode PMT. The testing techniques discussed in this paper are suitable for the study of PDE and linearity.

Keywords

PMT Linearity PDE Charge spectra P.E. 

Notes

Acknowledgements

This work was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences, Grant No. XDA10011100.

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Copyright information

© Institute of High Energy Physics, Chinese Academy of Sciences; Nuclear Electronics and Nuclear Detection Society and Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina
  2. 2.State Key Laboratory of Particle Detection and ElectronicsBeijingChina
  3. 3.University of Chinese Academy of SciencesBeijingChina

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