CERN Accelerating science

CMS Note
Report number	CMS-NOTE-2022-006 ; CERN-CMS-NOTE-2022-006
Title	Comparative characterization study of LYSO:Ce crystals for timing applications
Author(s)	Addesa, Francesca Maria (Princeton U.) ; Barria, Patrizia (INFN, Rome) ; Bianco, Roberta (INFN, Rome) ; Campana, Mattia (INFN, Rome ; Rome U.) ; Cavallari, Francesca (INFN, Rome) ; Cemmi, A ; Cipriani, Marco (CERN) ; Dafinei, Ioan (INFN, Rome) ; Del Re, Daniele (INFN, Rome ; Rome U.) ; Diemoz, Marcella (INFN, Rome) ; D'imperio, Giulia (INFN, Rome) ; Di Marco, Emanuele (INFN, Rome) ; D'Orsi, B ; Enculescu, M ; Longo, Egidio (INFN, Rome ; Rome U.) ; Lucchini, Marco Toliman (INFN, Milan Bicocca ; Milan Bicocca U.) ; Marchegiani, F ; Meridiani, Paolo (INFN, Rome) ; Nisi, S ; Organtini, Giovanni (INFN, Rome ; Rome U.) ; Pandolfi, Francesco (INFN, Rome) ; Paramatti, Riccardo (INFN, Rome ; Rome U.) ; Pettinacci, Valerio (INFN, Rome) ; Quaranta, Claudio (INFN, Rome ; Rome U.) ; Rahatlou, Shahram (INFN, Rome ; Rome U.) ; Rovelli, Chiara Ilaria (INFN, Rome) ; Santanastasio, Francesco (INFN, Rome ; Rome U.) ; Sarcina, I ; Soffi, Livia (INFN, Rome) ; Tramontano, Raffaella (INFN, Rome ; Rome U.) ; Tully, Christopher (Princeton U.)
Publication	2022
Imprint	13 May 2022
Number of pages	39
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Keywords	Upgrade
Abstract	Cerium-doped Lutetium-Yttrium Oxyorthosilicate (LYSO:Ce) is one of the most widely used Cerium-doped Lutetium based scintillation crystals. Initially developed for medical detectors it rapidly became attractive for High Energy Particle Physics (HEP) applications, especially in the frame of high luminosity particle colliders. In this paper, a comprehensive and systematic study of LYSO:Ce crystals is presented. It involves for the first time a large number of crystal samples (180) of the same size from a dozen of producers. The study consists of a comparative characterization of LYSO:Ce crystal products available on the market by mechanical, optical and scintillation measurements and aims specifically, to investigate key parameters of timing applications for HEP.