Nuclear Techniques ›› 2019, Vol. 42 ›› Issue (10): 100404-100404.doi: 10.11889/j.0253-3219.2019.hjs.42.100404


Data acquisition system for single photoelectron spectra of photoelectric detector

Feng GAO1,2,3,Sen QIAN1,3(),Zhe NING1,3,Zhigang WANG1,3,Lishuang MA1,4,Yao ZHU1,5,Pengyu CHEN4,Shiyu YIN4,Zhile WANG5   

  1. 1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. State Key Laboratory of Particle Detection and Electronics, Beijing 100049, China
    4. School of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, China
    5. Harbin Institute of Technology, Harbin 150000, China
  • Received:2018-03-13 Revised:2019-02-05 Online:2019-10-13 Published:2019-10-16
  • Contact: Sen QIAN
  • About author:GAO Feng, female, born in 1993, graduated from University of Chinese Academy of Sciences in 2019, focusing on nuclear and particle physics
  • Supported by:
    National Natural Science Foundation of China(11475209)

Abstract: Background

There are two methods to test the single photoelectron spectra (SPE) performance of the photomultiplier tubes (PMT) and Silicon Photomultiplie (SiPMT) with either the charge-to-digital-converter (QDC) module or flash amplitude-to-digital-converter (FADC) module.


This study aims to investigate the difference of data acquisition between FADC and QDC for single photoelectron spectra (SPE) of photoelectric detector.


Single photoelectron spectra (SPE) of 20-inch PMTs of the same model, as well as SiPMT of same mode, were measured under the same testing conditions using FADC module and QDC module. Gain, signal events, detection efficiency, the ratio of peak to valley and energy resolution were compared in details.


Both QDC and FADC can be used as data acquisition tools for PMT SPE test, but each has its own advantages and disadvantages.


According to the system’s specific demand for photoelectric detector, either of the two modules could be chosen.

Key words: Photomultiplier tubes, SiPMT, Single photoelectron spectra, Charge-to-digital-converter, Flash amplitude-to-digital-converter

CLC Number: 

  • TL813,TL82