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ALICE TPC upgrade for High-Rate operations

A new type of Time Projection Chamber (TPC) has been proposed for the upgrade of the ALICE (A Large Ion Collider Experiment at CERN) so as to cater to the high luminosity environment expected at the Large Hadron Collider (LHC) facility in future. This device will rely on the intrinsic ion back flow...

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Detalles Bibliográficos
Autor principal: Biswas, Saikat
Lenguaje:eng
Publicado: SISSA 2015
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.242.0094
http://cds.cern.ch/record/2103061
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author Biswas, Saikat
author_facet Biswas, Saikat
author_sort Biswas, Saikat
collection CERN
description A new type of Time Projection Chamber (TPC) has been proposed for the upgrade of the ALICE (A Large Ion Collider Experiment at CERN) so as to cater to the high luminosity environment expected at the Large Hadron Collider (LHC) facility in future. This device will rely on the intrinsic ion back flow (IBF) suppression of Micro-Pattern Gas Detectors (MPGD) based technology in particular the Gas Electron Multiplier (GEM). GEM is to minimise the space charge effect in the main drift volume and thus will not require the standard gating grid and the resulting intrinsic dead time. It will thus be possible to read all minimum bias Pb--Pb events that the Large Hadron Collider (LHC) will deliver at the anticipated peak interaction rate of 50 kHz for the high luminosity heavy-ion era in Run 3. New read-out electronics will send the continuous data stream to a new online farm at rates up to 1~TByte/s. The new read-out chambers will consist of stacks of 4 GEM foils combining different hole pitches. In addition to a low ion back flow ($<$ 1\%) other important requirements are good energy resolution (better than 12\% (sigma) for $^{55}$Fe X-rays) and operational stability.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
publisher SISSA
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spelling cern-21030612021-05-03T20:26:13Zdoi:10.22323/1.242.0094http://cds.cern.ch/record/2103061engBiswas, SaikatALICE TPC upgrade for High-Rate operationsnucl-exNuclear Physics - Experimenthep-exParticle Physics - Experimentphysics.ins-detDetectors and Experimental TechniquesA new type of Time Projection Chamber (TPC) has been proposed for the upgrade of the ALICE (A Large Ion Collider Experiment at CERN) so as to cater to the high luminosity environment expected at the Large Hadron Collider (LHC) facility in future. This device will rely on the intrinsic ion back flow (IBF) suppression of Micro-Pattern Gas Detectors (MPGD) based technology in particular the Gas Electron Multiplier (GEM). GEM is to minimise the space charge effect in the main drift volume and thus will not require the standard gating grid and the resulting intrinsic dead time. It will thus be possible to read all minimum bias Pb--Pb events that the Large Hadron Collider (LHC) will deliver at the anticipated peak interaction rate of 50 kHz for the high luminosity heavy-ion era in Run 3. New read-out electronics will send the continuous data stream to a new online farm at rates up to 1~TByte/s. The new read-out chambers will consist of stacks of 4 GEM foils combining different hole pitches. In addition to a low ion back flow ($<$ 1\%) other important requirements are good energy resolution (better than 12\% (sigma) for $^{55}$Fe X-rays) and operational stability.SISSAarXiv:1511.04988oai:cds.cern.ch:21030612015-11-07
spellingShingle nucl-ex
Nuclear Physics - Experiment
hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
Biswas, Saikat
ALICE TPC upgrade for High-Rate operations
title ALICE TPC upgrade for High-Rate operations
title_full ALICE TPC upgrade for High-Rate operations
title_fullStr ALICE TPC upgrade for High-Rate operations
title_full_unstemmed ALICE TPC upgrade for High-Rate operations
title_short ALICE TPC upgrade for High-Rate operations
title_sort alice tpc upgrade for high-rate operations
topic nucl-ex
Nuclear Physics - Experiment
hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
url https://dx.doi.org/10.22323/1.242.0094
http://cds.cern.ch/record/2103061
work_keys_str_mv AT biswassaikat alicetpcupgradeforhighrateoperations