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Development of a detector (ALFA) to measure the absolute LHC luminosity at ATLAS

Mapelli, A. ; Anghnolfi, F. ; Ask, S. LU ; Barrillon, P. ; Blanchot, G. ; Blin, S. ; Cheiklali, C. ; De La Taille, C. ; Di Girolamo, B. and Efthymiopoulos, I. , et al. (2008) International Conference on Advanced Technology and Particle Physics, ICATPP 2007 p.984-988
Abstract

The ATLAS collaboration plans to determine the absolute luminosity of the CERN LHC at Interaction Point 1 by measuring the trajectory of protons elastically scattered at very small angles (μrad). A scintillating fibre tracker system called ALFA (Absolute Luminosity For ATLAS) is proposed for this measurement. Detector modules will be placed above and below the LHC beam axis in roman pot units at a distance of 240 m on cach side of the ATLAS interaction point. They allow the detectors to approach the beam axis to millimeter distance. Overlap detectors also based on the scintillating fibre technology, will measure the precise relative position of the two detector modules, Results obtained during beam tests at DESY and at CERN validate the... (More)

The ATLAS collaboration plans to determine the absolute luminosity of the CERN LHC at Interaction Point 1 by measuring the trajectory of protons elastically scattered at very small angles (μrad). A scintillating fibre tracker system called ALFA (Absolute Luminosity For ATLAS) is proposed for this measurement. Detector modules will be placed above and below the LHC beam axis in roman pot units at a distance of 240 m on cach side of the ATLAS interaction point. They allow the detectors to approach the beam axis to millimeter distance. Overlap detectors also based on the scintillating fibre technology, will measure the precise relative position of the two detector modules, Results obtained during beam tests at DESY and at CERN validate the detectors design and demonstrate the achievable resolution. We also report about radiation hardness studies of the scintillating fibres to estimate the lifetime of the ALFA system at different operating conditions of the LHC.

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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 10th Conference
pages
5 pages
conference name
International Conference on Advanced Technology and Particle Physics, ICATPP 2007
conference location
Como, Italy
conference dates
2007-10-08 - 2007-10-12
external identifiers
  • scopus:84885913523
ISBN
9812819088
9789812819086
language
English
LU publication?
yes
id
5ba20aa5-4ee7-4bd3-909d-1bff84b0a38d
date added to LUP
2019-05-16 11:15:56
date last changed
2023-04-09 11:48:06
@inproceedings{5ba20aa5-4ee7-4bd3-909d-1bff84b0a38d,
  abstract     = {{<p>The ATLAS collaboration plans to determine the absolute luminosity of the CERN LHC at Interaction Point 1 by measuring the trajectory of protons elastically scattered at very small angles (μrad). A scintillating fibre tracker system called ALFA (Absolute Luminosity For ATLAS) is proposed for this measurement. Detector modules will be placed above and below the LHC beam axis in roman pot units at a distance of 240 m on cach side of the ATLAS interaction point. They allow the detectors to approach the beam axis to millimeter distance. Overlap detectors also based on the scintillating fibre technology, will measure the precise relative position of the two detector modules, Results obtained during beam tests at DESY and at CERN validate the detectors design and demonstrate the achievable resolution. We also report about radiation hardness studies of the scintillating fibres to estimate the lifetime of the ALFA system at different operating conditions of the LHC.</p>}},
  author       = {{Mapelli, A. and Anghnolfi, F. and Ask, S. and Barrillon, P. and Blanchot, G. and Blin, S. and Cheiklali, C. and De La Taille, C. and Di Girolamo, B. and Efthymiopoulos, I. and Faustino, J. and Fournier, D. and Franz, S. and Grafstrom, P. and Gurriana, L. and Haguenauer, M. and Hedberg, V. and Heller, M. and Hoffmann, S. and Iwanski, W. and Joram, C. and Kocnar, A. and Lavigne, B. and Lundberg, B. and Maio, A. and Maneira, M. J.P. and Marques, C. and Mjornmark, U. and Conde Muino, P. and Puzo, P. and Rijssenbeeck, M. and Santos, J. P. and Saraiva, J. G. and Seguin-Moreau, N. and Soares, S. and Stenzel, H. and Thioye, M. and Valladolid-Gallego, E. and Vorobel, V.}},
  booktitle    = {{Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 10th Conference}},
  isbn         = {{9812819088}},
  language     = {{eng}},
  month        = {{12}},
  pages        = {{984--988}},
  title        = {{Development of a detector (ALFA) to measure the absolute LHC luminosity at ATLAS}},
  year         = {{2008}},
}