Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data

LHCb is the dedicated heavy flavour experiment at the Large Hadron Collider at CERN. The partially assembled silicon vertex locator (VELO) of the LHCb experiment has been tested in a beam test. The data from this beam test have been used to determine the performance of the VELO alignment algorithm....

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Detalles Bibliográficos
Autores principales: Gersabeck, M., Viret, S., Parkes, C.
Lenguaje:eng
Publicado: 2008
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2008.07.154
http://cds.cern.ch/record/1118384
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author Gersabeck, M.
Viret, S.
Parkes, C.
author_facet Gersabeck, M.
Viret, S.
Parkes, C.
author_sort Gersabeck, M.
collection CERN
description LHCb is the dedicated heavy flavour experiment at the Large Hadron Collider at CERN. The partially assembled silicon vertex locator (VELO) of the LHCb experiment has been tested in a beam test. The data from this beam test have been used to determine the performance of the VELO alignment algorithm. The relative alignment of the two silicon sensors in a module and the relative alignment of the modules has been extracted. This alignment is shown to be accurate at a level of approximately 2 micron and 0.1 mrad for translations and rotations, respectively in the plane of the sensors. A single hit precision at normal track incidence of about 10 micron is obtained for the sensors. The alignment of the system is shown to be stable at better than the 10 micron level under air to vacuum pressure changes and mechanical movements of the assembled system.
id cern-1118384
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
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spelling cern-11183842019-09-30T06:29:59Zdoi:10.1016/j.nima.2008.07.154http://cds.cern.ch/record/1118384engGersabeck, M.Viret, S.Parkes, C.Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test DataDetectors and Experimental TechniquesLHCb is the dedicated heavy flavour experiment at the Large Hadron Collider at CERN. The partially assembled silicon vertex locator (VELO) of the LHCb experiment has been tested in a beam test. The data from this beam test have been used to determine the performance of the VELO alignment algorithm. The relative alignment of the two silicon sensors in a module and the relative alignment of the modules has been extracted. This alignment is shown to be accurate at a level of approximately 2 micron and 0.1 mrad for translations and rotations, respectively in the plane of the sensors. A single hit precision at normal track incidence of about 10 micron is obtained for the sensors. The alignment of the system is shown to be stable at better than the 10 micron level under air to vacuum pressure changes and mechanical movements of the assembled system.LHCb is the dedicated heavy flavour experiment at the Large Hadron Collider at CERN. The partially assembled silicon vertex locator (VELO) of the LHCb experiment has been tested in a beam test. The data from this beam test have been used to determine the performance of the VELO alignment algorithm. The relative alignment of the two silicon sensors in a module and the relative alignment of the modules has been extracted. This alignment is shown to be accurate at a level of approximately 2 micron and 0.1 mrad for translations and rotations, respectively in the plane of the sensors. A single hit precision at normal track incidence of about 10 micron is obtained for the sensors. The alignment of the system is shown to be stable at better than the 10 micron level under air to vacuum pressure changes and mechanical movements of the assembled system.LHCb is the dedicated heavy flavour experiment at the Large Hadron Collider at CERN. The partially assembled silicon vertex locator (VELO) of the LHCb experiment has been tested in a beam test. The data from this beam test have been used to determine the performance of the VELO alignment algorithm. The relative alignment of the two silicon sensors in a module and the relative alignment of the modules has been extracted. This alignment is shown to be accurate at a level of approximately 2 μ m and 0.1 mrad for translations and rotations, respectively, in the plane of the sensors. A single hit precision at normal track incidence of about 10 μ m is obtained for the sensors. The alignment of the system is shown to be stable at better than the 10 μ m level under air to vacuum pressure changes and mechanical movements of the assembled system.arXiv:0807.5069GLAS-PPE-2008-07GLAS-PPE-2008-07oai:cds.cern.ch:11183842008-08-01
spellingShingle Detectors and Experimental Techniques
Gersabeck, M.
Viret, S.
Parkes, C.
Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data
title Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data
title_full Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data
title_fullStr Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data
title_full_unstemmed Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data
title_short Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data
title_sort performance of the lhcb vertex detector alignment algorithm determined with beam test data
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2008.07.154
http://cds.cern.ch/record/1118384
work_keys_str_mv AT gersabeckm performanceofthelhcbvertexdetectoralignmentalgorithmdeterminedwithbeamtestdata
AT virets performanceofthelhcbvertexdetectoralignmentalgorithmdeterminedwithbeamtestdata
AT parkesc performanceofthelhcbvertexdetectoralignmentalgorithmdeterminedwithbeamtestdata

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