Performance of the LHCb vertex detector alignment algorithm determined with beam test data

M. Gersabeck; S. Viret; C. Parkes; K. Akiba; M. Artuso; J. Borel; T. J.V. Bowcock; J. Buytaert; P. Collins; R. Dumps; L. Dwyer; D. Eckstein; L. Eklund; M. Ferro-Luzzi; R. Frei; G. Haefeli; K. Hennessy; T. Huse; E. Jans; M. John; T. J. Ketel; A. Keune; T. Laštovička; R. Mountain; N. Neufeld; A. Papadelis; S. Stone; T. Szumlak; M. Tobin; M. Van Beuzekom; A. Van Lysebetten; T. W. Versloot; H. de Vries; J. C. Wang

doi:10.1016/j.nima.2008.07.154

Performance of the LHCb vertex detector alignment algorithm determined with beam test data

M. Gersabeck, S. Viret, C. Parkes, K. Akiba, M. Artuso, J. Borel, T. J.V. Bowcock, J. Buytaert, P. Collins, R. Dumps, L. Dwyer, D. Eckstein, L. Eklund, M. Ferro-Luzzi, R. Frei, G. Haefeli, K. Hennessy, T. Huse, E. Jans, M. JohnT. J. Ketel, A. Keune, T. Laštovička, R. Mountain, N. Neufeld, A. Papadelis, S. Stone, T. Szumlak, M. Tobin, M. Van Beuzekom, A. Van Lysebetten, T. W. Versloot, H. de Vries, J. C. Wang

Department of Physics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	164-171
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	596
Issue number	2
DOIs	https://doi.org/10.1016/j.nima.2008.07.154
State	Published - Nov 1 2008

Keywords

Alignment
LHCb
Vertex detector

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2008.07.154

Cite this

Gersabeck, M., Viret, S., Parkes, C., Akiba, K., Artuso, M., Borel, J., Bowcock, T. J. V., Buytaert, J., Collins, P., Dumps, R., Dwyer, L., Eckstein, D., Eklund, L., Ferro-Luzzi, M., Frei, R., Haefeli, G., Hennessy, K., Huse, T., Jans, E., ... Wang, J. C. (2008). Performance of the LHCb vertex detector alignment algorithm determined with beam test data. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 596(2), 164-171. https://doi.org/10.1016/j.nima.2008.07.154

Performance of the LHCb vertex detector alignment algorithm determined with beam test data. / Gersabeck, M.; Viret, S.; Parkes, C. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 596, No. 2, 01.11.2008, p. 164-171.

Research output: Contribution to journal › Article › peer-review

Gersabeck, M, Viret, S, Parkes, C, Akiba, K, Artuso, M, Borel, J, Bowcock, TJV, Buytaert, J, Collins, P, Dumps, R, Dwyer, L, Eckstein, D, Eklund, L, Ferro-Luzzi, M, Frei, R, Haefeli, G, Hennessy, K, Huse, T, Jans, E, John, M, Ketel, TJ, Keune, A, Laštovička, T, Mountain, R, Neufeld, N, Papadelis, A, Stone, S, Szumlak, T, Tobin, M, Van Beuzekom, M, Van Lysebetten, A, Versloot, TW, de Vries, H & Wang, JC 2008, 'Performance of the LHCb vertex detector alignment algorithm determined with beam test data', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 596, no. 2, pp. 164-171. https://doi.org/10.1016/j.nima.2008.07.154

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abstract = "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.",

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AU - Gersabeck, M.

AU - Viret, S.

AU - Parkes, C.

AU - Akiba, K.

AU - Artuso, M.

AU - Borel, J.

AU - Bowcock, T. J.V.

AU - Buytaert, J.

AU - Collins, P.

AU - Dumps, R.

AU - Dwyer, L.

AU - Eckstein, D.

AU - Eklund, L.

AU - Ferro-Luzzi, M.

AU - Frei, R.

AU - Haefeli, G.

AU - Hennessy, K.

AU - Huse, T.

AU - Jans, E.

AU - John, M.

AU - Ketel, T. J.

AU - Keune, A.

AU - Laštovička, T.

AU - Mountain, R.

AU - Neufeld, N.

AU - Papadelis, A.

AU - Stone, S.

AU - Szumlak, T.

AU - Tobin, M.

AU - Van Beuzekom, M.

AU - Van Lysebetten, A.

AU - Versloot, T. W.

AU - de Vries, H.

AU - Wang, J. C.

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N2 - 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.

AB - 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.

KW - Alignment

KW - LHCb

KW - Vertex detector

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ER -

Performance of the LHCb vertex detector alignment algorithm determined with beam test data

Abstract

Keywords

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