Comparative characterization study of LYSO:Ce crystals for timing   applications

F.M. Addesa (1,2); P.Barria (2); R. Bianco (2); M. Campana (2); F.; Cavallari (2); A. Cemmi (3); M. Cipriani (4); I. Dafinei (2); B. \v{d} Orsi; (2); D. del Re (2); M. Diemoz (2); G. \v{d} Imperio (2); E. Di Marco (2); I.; Di Sarcina (3); M. Enculescu (5); E. Longo (2); M. T. Lucchini (6); F.; Marchegiani (7); P. Meridiani (2); S. Nisi (7); G. Organtini (2); F. Pandolfi; (2); R. Paramatti (2); V. Pettinacci (2); C. Quaranta (2); S. Rahatlou (2),; C. Rovelli (2); F. Santanastasio (2); L. Soffi (2); R. Tramontano (2); C. G.; Tully (1) ((1) Princeton University; Princeton; U.S.A.; (2) INFN sezione di; Roma; Sapienza University; Roma; Italy (2); (3) ENEA - Fusion and; Technology for Nuclear Safety; Security Department; Rome; Italy; (4) CERN,; European Organization for Nuclear Research; Geneva 23; CH-1211 Switzerland,; (5) National Institute of Materials Physics; Magurele; Romania; (6) INFN and; University of Milano-Bicocca; Milano; Italy; (7) INFN - Laboratori Nazionali; del Gran Sasso; Assergi \v{L} Aquila; Italy)

arXiv:2205.14890·physics.ins-det·September 7, 2022

Comparative characterization study of LYSO:Ce crystals for timing applications

F.M. Addesa (1,2), P.Barria (2), R. Bianco (2), M. Campana (2), F., Cavallari (2), A. Cemmi (3), M. Cipriani (4), I. Dafinei (2), B. \v{d} Orsi, (2), D. del Re (2), M. Diemoz (2), G. \v{d} Imperio (2), E. Di Marco (2), I., Di Sarcina (3), M. Enculescu (5), E. Longo (2)

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TL;DR

This study systematically compares 180 LYSO:Ce crystals from multiple producers, evaluating their mechanical, optical, and scintillation properties to identify optimal parameters for high-energy physics timing applications.

Contribution

It provides the first large-scale, comprehensive comparison of LYSO:Ce crystals, highlighting key parameters relevant for timing in high-energy physics detectors.

Findings

01

Identified variations in crystal properties across producers

02

Determined optimal scintillation characteristics for timing

03

Provided data to guide selection of LYSO:Ce crystals for HEP

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 ( $[L u_{(1 - x)} Y_{x}]_{2} S i O_{5}$ : $C e$ ) 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.

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