Response of the Pierre Auger Observatory water Cherenkov detectors to muons [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2005.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 4 pages : digital, PDF file
Additional Creators:: Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Two test detectors similar to the Pierre Auger Observatory Water Cherenkov Detectors have been installed at the Observatory site and at the Institut de Physique Nucleaire d'Orsay. The signals from the tanks are read out using three 9'' photomultipliers and analyzed by both a digital oscilloscope with high sampling frequency and the Auger surface detector electronics. Additionally, the detectors are equipped with plastic scintillators serving as muon telescopes. The trigger is provided either by the muon telescope or by the coincidence of the three PMTs. The scintillators are movable allowing the study of the detector response to atmospheric muons arriving with different incident angles. In this paper, the results of measurements for vertical and inclined background muons are presented. These results are compared to simulations and important calibration parameters are extracted. The influence of the direct light detected by the PMTs, particularly important for inclined showers, is discussed.

Report Numbers:

E 1.99:fermilab-conf-05-282-e-td
fermilab-conf-05-282-e-td

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Published through SciTech Connect.
07/01/2005.
"fermilab-conf-05-282-e-td"
Presented at 29th International Cosmic Ray Conference (ICRC 2005), Pune, India, 3-11 Aug 2005.
Mazur, P.O.; Perez, G.; Suomijarvi, T.; Moreno, E.; Allison, P.; Aglietta, M.; Arneodo, F.; Ghia, P.L.; Andres, E.C.; Lhenry-Yvon, I.; Salazar, H.; Bonifazi, C.; Bertou, Xavier; Busca, N.; Genolini, B.; Creusot, A.; Deligny, O.; Dornic, D.; Grunfeld, C.M.

Funding Information:

AC02-76CH03000

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