Time and amplitude of afterpulse measured with a large size photomultiplier tube

K. J. Ma, W. G. Kang, J. K. Ahn, S. Choi, Y. Choi, M. J. Hwang, J. S. Jang, E. J. Jeon, K. K. Joo, H. S. Kim, J. Y. Kim, S. B. Kim, S. H. Kim, W. Kim, Y. D. Kim, J. Lee, I. T. Lim, Y. D. Oh, M. Y. Pac, C. W. ParkI. G. Park, K. S. Park, S. S. Stepanyan, I. Yu

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


We have studied the afterpulse of a hemispherical photomultiplier tube for an upcoming reactor neutrino experiment. The timing, the amplitude, and the rate of the afterpulse for a 10 in. photomultiplier tube were measured with a 400 MHz FADC up to 16μs time window after the initial signal generated by an LED light pulse. The time and amplitude correlation of the afterpulse shows several distinctive groups. We describe the dependencies of the afterpulse on the applied high voltage and the amplitude of the main light pulse. The present data could shed light upon the general mechanism of the afterpulse.

Original languageEnglish
Pages (from-to)93-100
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - 2011 Feb 11
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by Basic Science Research Program and Korea Neutrino Research Center (KNRC) through National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant no. 2006-08800, 2007-0054635, 2009-351-C00019, and 2009-0083526 ).


  • Afterpulse
  • Ionization
  • Photomultiplier tube

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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