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Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer

The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase II upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). In particular, precision timing can offset the performance degradation due to event pile...

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Autor principal: Costa, M
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/15/05/C05058
http://cds.cern.ch/record/2747950
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author Costa, M
author_facet Costa, M
author_sort Costa, M
collection CERN
description The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase II upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). In particular, precision timing can offset the performance degradation due to event pileup at the HL-LHC, recovering the purity of vertices of current LHC conditions. As such, a new timing layer will be introduced to measure minimum ionizing particles (MIPs) with a time resolution of 30 ps. The endcap region of this MIP Timing Detector (MTD) will be instrumented with a hermetic double layer of silicon low gain avalanche detectors (LGADs), covering the high radiation pseudo-rapidity region between |$\eta$|=1.6 to 3.0. Radiation tolerance studies of the LGADs indicate excellent performances adequate to cope with the Endcap Timing Layer (ETL) requirements. The LGADs have intrinsic gain, which enhances the MIP signal and provides adequate signal-to-noise for good timing precision. We present the status of the art for the LGADs for the endcap region of the MTD and report on recent beam test results.
id oai-inspirehep.net-1797594
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling oai-inspirehep.net-17975942022-11-17T14:32:22Zdoi:10.1088/1748-0221/15/05/C05058http://cds.cern.ch/record/2747950engCosta, MPrecision timing with low gain avalanche detectors in the CMS MTD Endcap Timing LayerDetectors and Experimental TechniquesThe Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase II upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). In particular, precision timing can offset the performance degradation due to event pileup at the HL-LHC, recovering the purity of vertices of current LHC conditions. As such, a new timing layer will be introduced to measure minimum ionizing particles (MIPs) with a time resolution of 30 ps. The endcap region of this MIP Timing Detector (MTD) will be instrumented with a hermetic double layer of silicon low gain avalanche detectors (LGADs), covering the high radiation pseudo-rapidity region between |$\eta$|=1.6 to 3.0. Radiation tolerance studies of the LGADs indicate excellent performances adequate to cope with the Endcap Timing Layer (ETL) requirements. The LGADs have intrinsic gain, which enhances the MIP signal and provides adequate signal-to-noise for good timing precision. We present the status of the art for the LGADs for the endcap region of the MTD and report on recent beam test results.oai:inspirehep.net:17975942020
spellingShingle Detectors and Experimental Techniques
Costa, M
Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer
title Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer
title_full Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer
title_fullStr Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer
title_full_unstemmed Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer
title_short Precision timing with low gain avalanche detectors in the CMS MTD Endcap Timing Layer
title_sort precision timing with low gain avalanche detectors in the cms mtd endcap timing layer
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1748-0221/15/05/C05058
http://cds.cern.ch/record/2747950
work_keys_str_mv AT costam precisiontimingwithlowgainavalanchedetectorsinthecmsmtdendcaptiminglayer