SiPM cross-talk in liquid argon detectors
oleh: M. G. Boulay, M. G. Boulay, V. Camillo, N. Canci, S. Choudhary, L. Consiglio, A. Flammini, C. Galbiati, C. Galbiati, C. Ghiano, A. Gola, A. Gola, S. Horikawa, P. Kachru, I. Kochanek, K. Kondo, G. Korga, M. Kuźniak, A. Mazzi, A. Mazzi, A. Moharana, G. Nieradka, G. Paternoster, G. Paternoster, A. Razeto, D. Sablone, T. N. Thorpe, T. N. Thorpe, C. Türkoğlu, H. Wang, M. Rescigno, S. Sanfilippo
| Format: | Article |
|---|---|
| Diterbitkan: | Frontiers Media S.A. 2023-05-01 |
Deskripsi
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.