Test beam characterization of sensor prototypes for the CMS Barrel MIP Timing Detector
Abstract
The MIP Timing Detector will provide additional timing capabilities for detection of minimum ionizing particles (MIPs) at CMS during the High Luminosity LHC era, improving event reconstruction and pileup rejection. The central portion of the detector, the Barrel Timing Layer (BTL), will be instrumented with LYSO:Ce crystals and Silicon Photomultipliers (SiPMs) providing a time resolution of about 30 ps at the beginning of operation, and degrading to 50-60 ps at the end of the detector lifetime as a result of radiation damage. In this work, we present the results obtained using a 120 GeV proton beam at the Fermilab Test Beam Facility to measure the time resolution of unirradiated sensors. A proof-of-concept of the sensor layout proposed for the barrel region of the MTD, consisting of elongated crystal bars with dimensions of about 3 x 3 x 57 mm and with double-ended SiPM readout, is demonstrated. This design provides a robust time measurement independent of the impact point of the MIP along the crystal bar. We tested LYSO:Ce bars of different thickness (2, 3, 4 mm) with a geometry close to the reference design and coupled to SiPMs manufactured by Hamamatsu and Fondazione Bruno Kessler. The various aspects influencing the timing performance such as the crystal thickness, properties of the SiPMs (e.g. photon detection efficiency), and impact angle of the MIP are studied. A time resolution of about 28 ps is measured for MIPs crossing a 3 mm thick crystal bar, corresponding to an MPV energy deposition of 2.6 MeV, and of 22 ps for the 4.2 MeV MPV energy deposition expected in the BTL, matching the detector performance target for unirradiated devices.
Cite
@article{arxiv.2104.07786,
title = {Test beam characterization of sensor prototypes for the CMS Barrel MIP Timing Detector},
author = {R. Abbott and A. Abreu and F. Addesa and M. Alhusseini and T. Anderson and Y. Andreev and A. Apresyan and R. Arcidiacono and M. Arenton and E. Auffray and D. Bastos and L. A. T. Bauerdick and R. Bellan and M. Bellato and A. Benaglia and M. Benettoni and R. Bertoni and M. Besancon and S. Bharthuar and A. Bornheim and E. Brücken and J. N. Butler and C. Campagnari and M. Campana and R. Carlin and P. Carniti and N. Cartiglia and M. Casarsa and O. Cerri and P. Checchia and H. Chen and S. Chidzik and F. Chlebana and F. Cossutti and M. Costa and B. Cox and I. Dafinei and F. De Guio and P. Debbins and D. del Re and A. Dermenev and E. Di Marco and K. Dilsiz and K. F. Di Petrillo and G. Dissertori and S. Dogra and U. Dosselli and I. Dutta and F. Caleb and C. Fernandez Madrazo and M. Fernandez and M. Ferrero and Z. Flowers and W. Funk and M. Gallinaro and S. Ganjour and M. Gardner and F. Geurts and A. Ghezzi and S. Gninenko and F. Golf and J. Gonzalez and C. Gotti and L. Gray and F. Guilloux and S. Gundacker and E. Hazen and S. Hedia and A. Heering and R. Heller and T. Isidori and R. Isocrate and R. Jaramillo and M. Joyce and K. Kaadze and A. Karneyeu and H. Kim and J. King and G. Kopp and M. Korjik and O. K. Koseyan and A. Kozyrev and N. Kratochwil and M. Lazarovits and A. Ledovskoy and H. Lee and J. Lee and A. Li and S. Li and W. Li and T. Liu and N. Lu and M. Lucchini and W. Lustermann and C. Madrid and M. Malberti and I. Mandjavize and J. Mao and Y. Maravin and D. Marlow and B. Marsh and P. Martinez del Arbol and B. Marzocchi and R. Mazza and C. McMahon and V. Mechinsky and P. Meridiani and A. Mestvirishvili and N. Minafra and A. Mohammadi and F. Monti and C. S. Moon and R. Mulargia and M. Murray and Y. Musienko and J. Nachtman and S. Nargelas and L. Narvaez and O. Neogi and C. Neu and T. Niknejad and M. Obertino and H. Ogul and G. Oh and I. Ojalvo and Y. Onel and G. Organtini and T. Orimoto and J. Ott and I. Ovtin and M. Paganoni and F. Pandolfi and R. Paramatti and A. Peck and C. Perez and G. Pessina and C. Pena and S. Pigazzini and O. Radchenko and N. Redaelli and D. Rigoni and E. Robutti and C. Rogan and R. Rossin and C. Rovelli and C. Royon and M. Ö. Sahin and W. Sands and F. Santanastasio and U. Sarica and I. Schmidt and R. Schmitz and J. Sheplock and J. C. Silva and F. Siviero and L. Soffi and V. Sola and G. Sorrentino and M. Spiropulu and D. Spitzbart and A. G. Stahl Leiton and A. Staiano and D. Stuart and I. Suarez and T. Tabarelli de Fatis and G. Tamulaitis and Y. Tang and B. Tannenwald and R. Taylor and E. Tiras and M. Titov and S. Tkaczyk and D. Tlisov and I. Tlisova and M. Tornago and M. Tosi and R. Tramontano and J. Trevor and C. G. Tully and B. Ujvari and J. Varela and S. Ventura and I. Vila and T. Wamorkar and C. Wang and X. Wang and M. Wayne and J. Wetzel and S. White and D. Winn and S. Wu and S. Xie and Z. Ye and G. B. Yu and G. Zhang and L. Zhang and Y. Zhang and Z. Zhang and R. Zhu},
journal= {arXiv preprint arXiv:2104.07786},
year = {2021}
}