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Calibration of cameras of the H.E.S.S. detector

By F. Aharonian, A.G. Akhperjanian, K.-M. Aye, A.R. Bazer-Bachi, M. Beilicke, W. Benbow, D. Berge, P. Berghaus, K. Bernlöhr, O. Bolz, C. Boisson, C. Borgmeier, F. Breitling, A.M. Brown, P.M. Chadwick, V.R. Chitnis, L.-M. Chounet, R. Cornils, L. Costamante, B. Degrange, O.C. De Jager, A. Djannati-Ataï, L.O'C. Drury, T. Ergin, P. Espigat, F. Feinstein, P. Fleury, G. Fontaine, S. Funk, Y.A. Gallant, B. Giebels, S. Gillessen, P. Goret, J. Guy, C. Hadjichristidis, M. Hauser, G. Heinzelmann, G. Henri, G. Hermann, J. Hinton, W. Hofmann, M. Holleran, D. Horns, I. Jung, B. Khélifi, Nu. Komin, A. Konopelko, I.J. Latham, R. Le Gallou, M. Lemoine, A. Lemière, N. Leroy, T. Lohse, A. Marcowith, C. Masterson, T.J.L. Mccomb, M. De Naurois, S.J. Nolan, A. Noutsos, K.J. Orford, J.L. Osborne, M. Ouchrif, M. Panter, G. Pelletier, S. Pita, M. Pohl, G. Pühlhofer, M. Punch, B.C. Raubenheimer, M. Raue, J. Raux, S.M. Rayner, I. Redondo, A. Reimer, O. Reimer, J. Ripken, M. Rivoal, L. Rob, L. Rolland, G. Rowell, V. Sahakian, L. Sauge, S. Schlenker, R. Schlickeiser, C. Schuster, U. Schwanke, M. Siewert, H. Sol, R. Steenkamp, C. Stegmann, J.-P. Tavernet, C.G. Théoret, M. Tluczykont, D.J. Van Der Walt, G. Vasileiadis, P. Vincent, B. Visser, H.J. Volk and S.J. Wagner

Abstract

H.E.S.S.—the high energy stereoscopic system—is a new system of large atmospheric Cherenkov telescopes for GeV/TeV astronomy. Each of the four telescopes of 107 m2 mirror area is equipped with a 960-pixel photomultiplier-tube camera. This paper describes the methods used to convert the photomultiplier signals into the quantities needed for Cherenkov image analysis. Two independent calibration techniques have been applied in parallel to provide an estimation of uncertainties. Results on the long-term stability of the H.E.S.S. cameras are also presented

Topics: [PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], [SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph]
Publisher: Elsevier
Year: 2004
DOI identifier: 10.1016/j.astropartphys.2004.06.006
OAI identifier: oai:HAL:in2p3-00025285v1
Provided by: Hal-Diderot
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