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A simulation model of front-end electronics for high-precision timing measurements with low-gain avalanche detectors

Peña, C. and Deptuch, G. and Xie, S. and Apresyan, A. and Narváez, L. and Ristori, L. (2019) A simulation model of front-end electronics for high-precision timing measurements with low-gain avalanche detectors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 940 . pp. 119-124. ISSN 0168-9002. http://resolver.caltech.edu/CaltechAUTHORS:20190612-073341223

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Abstract

In this paper we report simulation results of a study aiming to optimize parameters of a detector that uses low-gain avalanche detectors (LGAD) for high-precision timing measurements. The detector is assumed to be composed of a 50μm LGAD sensor coupled to front-end readout electronics which is used to measure the time of arrival of minimum ionizing particles. The simulation includes modeling of signal fluctuations in the LGAD sensor, variations of the analog bandwidth and signal-to-noise ratio (SNR) of the front-end electronics, time bin quantization, and radiation damage of the LGAD sensors. Two approaches to measure the timestamp are considered: leading edge and constant fraction. Simulated LGAD pulses before irradiation, and after irradiation with neutron fluences of 5×10^(14) n/cm^2 and 1×10^(15) n/cm^2, are studied. The time resolution for a 50μm LGADs was found to be 35 ps for front-end electronics bandwidths larger than 350 MHz and SNRs larger than 30. The time resolution at SNR of 30 for fluences of 5×10^(14) n/cm^2 and 1×10^(15)n/cm^2 were found to be 31 ps and 37 ps, respectively.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.nima.2019.06.010DOIArticle
ORCID:
AuthorORCID
Xie, S.0000-0003-2509-5731
Additional Information:© 2019 Published by Elsevier B.V. Received 16 May 2019, Revised 3 June 2019, Accepted 9 June 2019, Available online 11 June 2019.
Group:CMS@Caltech
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011925
European Regional Development FundUNSPECIFIED
Department of Energy (DOE)DE-AC02-07CH11359
Fermilab2017.027
European Research Council (ERC)654168
Ministro degli Affari EsteriUNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
Ministerio de Economía, Industria y Competitividad (MINECO)FPA2014-55295-C3-2-R
Subject Keywords:Silicon; Timing; LGAD
Record Number:CaltechAUTHORS:20190612-073341223
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190612-073341223
Official Citation:C. Peña, G. Deptuch, S. Xie, A. Apresyan, L. Narváez, L. Ristori, A simulation model of front-end electronics for high-precision timing measurements with low-gain avalanche detectors, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 940, 2019, Pages 119-124, ISSN 0168-9002, https://doi.org/10.1016/j.nima.2019.06.010. (http://www.sciencedirect.com/science/article/pii/S0168900219308319)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96307
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Jun 2019 15:22
Last Modified:18 Jun 2019 22:16

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