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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...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2007
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Acceso en línea: | https://dx.doi.org/10.1142/S0218301307008021 http://cds.cern.ch/record/1026291 |
_version_ | 1780912214051389440 |
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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 |
record_format | invenio |
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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