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Precision Timing with Silicon Sensors for Use in Calorimetry

Bornheim, A. and Ronzhin, A. and Kim, H. and Bolla, G. and Pena, C. and Xie, S. and Apresyan, A. and Los, S. and Spiropulu, M. and Ramberg, E. (2016) Precision Timing with Silicon Sensors for Use in Calorimetry. Journal of Physics Conference Series, 928 . Art. No. 012020. ISSN 1742-6588. doi:10.1088/1742-6596/928/1/012020.

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The high luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN is expected to provide instantaneous luminosities of 5 × 10^(34) cm^(−2) s^(−1). The high luminosities expected at the HL-LHC will be accompanied by a factor of 5 to 10 more pileup compared with LHC conditions in 2015, causing general confusion for particle identification and event reconstruction. Precision timing allows to extend calorimetric measurements into such a high density environment by subtracting the energy deposits from pileup interactions. Calorimeters employing silicon as the active component have recently become a popular choice for the HL- LHC and future collider experiments which face very high radiation environments. We present studies of basic calorimetric and precision timing measurements using a prototype composed of tungsten absorber and silicon sensor as the active medium. We show that for the bulk of electromagnetic showers induced by electrons in the range of 20 GeV to 30 GeV, we can achieve time resolutions better than 25 ps per single pad sensor.

Item Type:Article
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URLURL TypeDescription
Bornheim, A.0000-0002-0128-0871
Xie, S.0000-0003-2509-5731
Apresyan, A.0000-0002-6186-0130
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. Operated by Fermi Research Alliance, LLC under Contract no. DE-AC02-07CH11359 with the United States Department of Energy. Supported by funding from California Institute of Technology High Energy Physics under Contract DE-SC0011925 with the United States Department of Energy. We thank the FTBF personnel for very good beam conditions during our test beam time. We also appreciate the technical support of the Fermilab SiDet department for the production of high quality silicon samples.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-07CH11359
Department of Energy (DOE)DE-SC0011925
Record Number:CaltechAUTHORS:20180125-105423273
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Official Citation:A Bornheim et al 2017 J. Phys.: Conf. Ser. 928 012020
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84519
Deposited By: Tony Diaz
Deposited On:25 Jan 2018 22:39
Last Modified:12 Jul 2022 17:10

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