The Laser of the ALICE Time Projection Chamber

The large TPC ($95 \mathrm{m}^3$) of the ALICE detector at the CERN LHC was commissioned in summer 2006. The first tracks were observed both from the cosmic ray muons and from the laser rays injected into the TPC. In this article the basic principles of operating the $266 \mathrm{nm}$ lasers are pre...

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Detalles Bibliográficos
Autores principales: Renault, G, Nielsen, B S, Westergaard, J, GaardhOJe, J J
Lenguaje:eng
Publicado: 2007
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1142/S0218301307008021
http://cds.cern.ch/record/1026291
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author Renault, G
Nielsen, B S
Westergaard, J
GaardhOJe, J J
author_facet Renault, G
Nielsen, B S
Westergaard, J
GaardhOJe, J J
author_sort Renault, G
collection CERN
description The large TPC ($95 \mathrm{m}^3$) of the ALICE detector at the CERN LHC was commissioned in summer 2006. The first tracks were observed both from the cosmic ray muons and from the laser rays injected into the TPC. In this article the basic principles of operating the $266 \mathrm{nm}$ lasers are presented, showing the installation and adjustment of the optical system and describing the control system. To generate the laser tracks, a wide laser beam is split into several hundred narrow beams by fixed micro-mirrors at stable and known positions throughout the TPC. In the drift volume, these narrow beams generate straight tracks at many angles. Here we describe the generation of the first tracks and compare them with simulations.
id cern-1026291
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
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spelling cern-10262912019-09-30T06:29:59Zdoi:10.1142/S0218301307008021http://cds.cern.ch/record/1026291engRenault, GNielsen, B SWestergaard, JGaardhOJe, J JThe Laser of the ALICE Time Projection ChamberNuclear PhysicsThe large TPC ($95 \mathrm{m}^3$) of the ALICE detector at the CERN LHC was commissioned in summer 2006. The first tracks were observed both from the cosmic ray muons and from the laser rays injected into the TPC. In this article the basic principles of operating the $266 \mathrm{nm}$ lasers are presented, showing the installation and adjustment of the optical system and describing the control system. To generate the laser tracks, a wide laser beam is split into several hundred narrow beams by fixed micro-mirrors at stable and known positions throughout the TPC. In the drift volume, these narrow beams generate straight tracks at many angles. Here we describe the generation of the first tracks and compare them with simulations.nucl-ex/0703042oai:cds.cern.ch:10262912007-03-27
spellingShingle Nuclear Physics
Renault, G
Nielsen, B S
Westergaard, J
GaardhOJe, J J
The Laser of the ALICE Time Projection Chamber
title The Laser of the ALICE Time Projection Chamber
title_full The Laser of the ALICE Time Projection Chamber
title_fullStr The Laser of the ALICE Time Projection Chamber
title_full_unstemmed The Laser of the ALICE Time Projection Chamber
title_short The Laser of the ALICE Time Projection Chamber
title_sort laser of the alice time projection chamber
topic Nuclear Physics
url https://dx.doi.org/10.1142/S0218301307008021
http://cds.cern.ch/record/1026291
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AT gaardhojejj thelaserofthealicetimeprojectionchamber
AT renaultg laserofthealicetimeprojectionchamber
AT nielsenbs laserofthealicetimeprojectionchamber
AT westergaardj laserofthealicetimeprojectionchamber
AT gaardhojejj laserofthealicetimeprojectionchamber

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