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Calibration of the surface array of the Pierre Auger Observatory
Bertou X., Allison P.S., Bonifazi C., Bauleo P., Grunfeld C.M. et al
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 568 (2006) 839-846 - http://hal.in2p3.fr/in2p3-00706799
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique
Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique
Calibration of the surface array of the Pierre Auger Observatory
X. Bertou, P. S. Allison, C. Bonifazi1, P. Bauleo, C. M. Grunfeld, M. Aglietta, F. Arneodo, D. Barnhill, J. J. Beatty, N.G. Busca2, A. Creusot3, D. Dornic3, A. Etchegoyen, A. Filevitch, P. L. Ghia, I. Lhenry-Yvon3, M. C. Medina, E. Moreno, D. Nitz, T. Ohnuki, S. Ranchon4, H. Salazar, T. Suomijärvi3, D. Supanitsky, A. Tripathi, M. Urban4, L. Villasenor
1 :  LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
http://www-lpnhep.in2p3.fr
CNRS : UMR7585 – IN2P3 – Université Pierre et Marie Curie (UPMC) - Paris VI – Université Paris VII - Paris Diderot
Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05
France
2 :  University of Chicago
http://www.uchicago.edu/
University of Chicago
Edward H. Levi Hall 5801 South Ellis Avenue Chicago, Illinois 60637
États-Unis
3 :  IPNO - Institut de Physique Nucléaire d'Orsay
http://ipnweb.in2p3.fr
CNRS : UMR8608 – IN2P3 – Université Paris XI - Paris Sud
IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX
France
4 :  LAL - Laboratoire de l'Accélérateur Linéaire
http://www.lal.in2p3.fr/
CNRS : UMR8607 – IN2P3 – Université Paris XI - Paris Sud
Centre Scientifique d'Orsay B.P. 34 91898 ORSAY Cedex
France
The Pierre Auger Observatory is designed to study cosmic rays of the highest energies (>10eV). The ground array of the Observatory will consist of 1600 water Cherenkov detectors deployed over 3000km. The remoteness and large number of detectors require a robust, automatic self-calibration procedure. It relies on the measurement of the average charge collected by a photomultiplier tube from the Cherenkov light produced by a vertical and central through-going muon, determined to 5 10% at the detector via a novel rate-based technique and to 3% precision through analysis of histograms of the charge distribution. The parameters needed for the calibration are measured every minute, allowing for an accurate determination of the signals recorded from extensive air showers produced by primary cosmic rays. The method also enables stable and uniform triggering conditions to be achieved.
PIERRE AUGER

Articles dans des revues avec comité de lecture
12/2006
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (Nucl. Instr.& Meth. Phys. A)
Publisher Elsevier
ISSN 0168-9002 
568
839-846