학술논문
SiPM cross-talk in liquid argon detectors
Document Type
article
Author
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. Razeto; D. Sablone; T. N. Thorpe; C. Türkoğlu; H. Wang; M. Rescigno; S. Sanfilippo
Source
Frontiers in Physics, Vol 11 (2023)
Subject
Language
English
ISSN
2296-424X
Abstract
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.