SiPM cross-talk in liquid argon detectors

M. G. Boulay, V. Camillo, N. Canci, S. Choudhary, L. Consiglio, A. Flammini, C. Galbiati, C. Ghiano, A. Gola, S. Horikawa, P. Kachru, I. Kochanek, K. Kondo, G. Korga, M. Kuźniak, A. Mazzi, A. Moharana, G. Nieradka, G. Paternoster, A. RazetoD. Sablone, T. N. Thorpe, C. Türkoğlu, H. Wang, M. Rescigno, S. Sanfilippo

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


SiPM-based readouts are becoming the standard for light detection in particle detectors given their superior resolution and ease of use with respect to vacuum tube photo-multipliers. However, the contributions of noise detection such as the dark rate, cross-talk, and after-pulsing (AP) may significantly impact their performance. In this work, we present the development of highly reflective single-phase argon chambers capable of displaying light yields up to 32 photo-electrons per keV, with approximately 12 being primary photo-electrons generated by the argon scintillation, while the rest are accounted by optical cross-talk. Furthermore, the presence of compound processes results in a generalized Fano factor larger than 2 already at an over-voltage of 5 V. Finally, we present a parametrization of the optical cross-talk for the FBK NUV-HD-Cryo SiPMs at 87 K that can be extended to future detectors with tailored optical simulations.

Original languageEnglish (US)
Article number1181400
JournalFrontiers in Physics
StatePublished - 2023

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Materials Science (miscellaneous)
  • Mathematical Physics
  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


  • SiPM
  • correlated noises
  • cross-talk
  • light yield
  • liquid argon detector


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