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The ALICE Inner Tracker System Upgrade

The phase II upgrade of the Large Hadron Collider (LHC) at CERN is planned under the assumption that the LHC will progressively increase the luminosity of heavy ion beams, eventually reaching an interaction rate of about 50 kHz in Pb-Pb collisions, i.e. instantaneous luminosities of L = 6 × 1027 cm−...

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Detalles Bibliográficos
Autor principal: Ronchetti, Federico
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/1271/1/012003
http://cds.cern.ch/record/2834878
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author Ronchetti, Federico
author_facet Ronchetti, Federico
author_sort Ronchetti, Federico
collection CERN
description The phase II upgrade of the Large Hadron Collider (LHC) at CERN is planned under the assumption that the LHC will progressively increase the luminosity of heavy ion beams, eventually reaching an interaction rate of about 50 kHz in Pb-Pb collisions, i.e. instantaneous luminosities of L = 6 × 1027 cm−2s−1. In this perspective, the two main ALICE tracking devices, the TPC and the Inner Tracking system (ITS) will be both upgraded to cope with the foreseen interaction rates. In particular, the various ALICE silicon detectors will be fully replaced with a new, high-resolution, multi-layered, low-material, 12500 megapixel system allowing for very high data rates, and enhancing the vertexing and tracking capabilities at low transverse momenta (pT ). The challenge and the uniqueness of the new ALICE ITS is the very small material budget of the silicon tracker, which will be a factor 4 to 5 smaller than existing similar systems at CERN. The present article describes the design and implementation of complex and reliable assembly procedures (focusing on the detector Outer Layers) which was crucial to push the new ITS technology into production.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
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spelling cern-28348782022-10-05T13:13:56Zdoi:10.1088/1742-6596/1271/1/012003http://cds.cern.ch/record/2834878engRonchetti, FedericoThe ALICE Inner Tracker System UpgradeParticle Physics - ExperimentNuclear Physics - ExperimentThe phase II upgrade of the Large Hadron Collider (LHC) at CERN is planned under the assumption that the LHC will progressively increase the luminosity of heavy ion beams, eventually reaching an interaction rate of about 50 kHz in Pb-Pb collisions, i.e. instantaneous luminosities of L = 6 × 1027 cm−2s−1. In this perspective, the two main ALICE tracking devices, the TPC and the Inner Tracking system (ITS) will be both upgraded to cope with the foreseen interaction rates. In particular, the various ALICE silicon detectors will be fully replaced with a new, high-resolution, multi-layered, low-material, 12500 megapixel system allowing for very high data rates, and enhancing the vertexing and tracking capabilities at low transverse momenta (pT ). The challenge and the uniqueness of the new ALICE ITS is the very small material budget of the silicon tracker, which will be a factor 4 to 5 smaller than existing similar systems at CERN. The present article describes the design and implementation of complex and reliable assembly procedures (focusing on the detector Outer Layers) which was crucial to push the new ITS technology into production.oai:cds.cern.ch:28348782019
spellingShingle Particle Physics - Experiment
Nuclear Physics - Experiment
Ronchetti, Federico
The ALICE Inner Tracker System Upgrade
title The ALICE Inner Tracker System Upgrade
title_full The ALICE Inner Tracker System Upgrade
title_fullStr The ALICE Inner Tracker System Upgrade
title_full_unstemmed The ALICE Inner Tracker System Upgrade
title_short The ALICE Inner Tracker System Upgrade
title_sort alice inner tracker system upgrade
topic Particle Physics - Experiment
Nuclear Physics - Experiment
url https://dx.doi.org/10.1088/1742-6596/1271/1/012003
http://cds.cern.ch/record/2834878
work_keys_str_mv AT ronchettifederico thealiceinnertrackersystemupgrade
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