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LYSO based precision timing calorimeters

Bornheim, A. and Apresyan, A. and Ronzhin, A. and Xie, S. and Duarte, J. and Spiropulu, M. and Trevor, J. and Anderson, D. and Peña, C. and Hassanshahi, M. H. (2016) LYSO based precision timing calorimeters. Journal of Physics Conference Series, 928 . Art. No. 012023. ISSN 1742-6588. doi:10.1088/1742-6596/928/1/012023.

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In this report we outline the study of the development of calorimeter detectors using bright scintillating crystals. We discuss how timing information with a precision of a few tens of pico seconds and below can significantly improve the reconstruction of the physics events under challenging high pileup conditions to be faced at the High-Luminosity LHC or a future hadron collider. The particular challenge in measuring the time of arrival of a high energy photon lies in the stochastic component of the distance of initial conversion and the size of the electromagnetic shower. We present studies and measurements from test beams for calorimeter based timing measurements to explore the ultimate timing precision achievable for high energy photons of 10 GeV and above. We focus on techniques to measure the timing with a high precision in association with the energy of the photon. We present test-beam studies and results on the timing performance and characterization of the time resolution of LYSO-based calorimeters. We demonstrate time resolution of 30 ps is achievable for a particular design.

Item Type:Article
Related URLs:
URLURL TypeDescription
Bornheim, A.0000-0002-0128-0871
Apresyan, A.0000-0002-6186-0130
Xie, S.0000-0003-2509-5731
Duarte, J.0000-0002-5076-7096
Spiropulu, M.0000-0001-8172-7081
Additional Information:© 2017 Published under licence by IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Supported by funding from California Institute of Technology High Energy Physics under Contract DE-SC0011925 with the United States Department of Energy. We thank Randy Ruchti from the University of Notre Dame for providing the wave length shifting capillaries. We thank CERN for providing access to the test beam facilities and our colleagues from Rome and ETH for fruitful collaboration and help with the DAQ system.
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Department of Energy (DOE)DE-SC0011925
Record Number:CaltechAUTHORS:20180125-111108475
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Official Citation:A Bornheim et al 2017 J. Phys.: Conf. Ser. 928 012023
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84520
Deposited By: Tony Diaz
Deposited On:25 Jan 2018 23:57
Last Modified:12 Jul 2022 17:10

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