The camera of the fifth H.E.S.S. telescope. Part I: System description

In July 2012, as the four ground-based gamma-ray telescopes of the H.E.S.S. (High Energy Stereoscopic System) array reached their tenth year of operation in Khomas Highlands, Namibia, a fifth telescope took its first data as part of the system. This new Cherenkov detector, comprising a 614.5 m$^2$ reflector with a highly pixellized camera in its focal plane, improves the sensitivity of the current array by a factor two and extends its energy domain down to a few tens of GeV. The present part I of the paper gives a detailed description of the fifth H.E.S.S. telescope's camera, presenting the details of both the hardware and the software, emphasizing the main improvements as compared to previous H.E.S.S. camera technology.

T. Le Flour | L. Brunetti | W. Bertoli | P. Ghislain | J.-F. Huppert | B. Degrange | G. Fontaine | A. Fiasson | P. Espigat | J. Mehault | G. Vasileiadis | F. Feinstein | E. Delagnes | J. Bolmont | B. Giebels | G. Lamanna | M. de Naurois | M. Punch | J.-P. Tavernet | P. Vincent | Y. Moudden | J. Prast | G. Maurin | O. Martineau-Huynh | N. Geffroy | P. Nayman | F. Toussenel | D. Vincent | M. Compin | B. Lieunard | F. Krayzel | P. Venault | P. Corona | E. Delagnes | B. Lieunard | J. Prast | Y. Moudden | L. Journet | D. Vincent | G. Fontaine | T. Flour | P. Venault | L. G. Riveros | W. Bertoli | P. Ghislain | L. Chounet | F. Feinstein | G. Maurin | L. Brunetti | P. Nayman | J. Tavernet | J. Bolmont | M. Compin | P. Corona | M. Naurois | E. Edy | A. Fiasson | N. Geffroy | B. Giebels | J. Glicenstein | G. Lamanna | P. Manigot | I. Monteiro | J. Panazol | J. Parraud | M. Punch | S. Rivoire | S. Lees | S. Royer | F. Toussenel | G. Vasileiadis | P. Vincent | B. Degrange | B. Kh'elifi | P. Espigat | O. Martineau-Huynh | J. Méhault | J. Huppert | P. Gauron | C. Goffin | L. Guevara Riveros | J.-M. Parraud | D. Besin | J.-F. Glicenstein | H. Zaghia | P.-Y. David | J-M. Dubois | I. Gomes Monteiro | L. Journet | S. Lees | P. Mugnier | J.-L. Panazol | L.-M. Chounet | E. Edy | S. Hormigos | B. Kh'elifi | P. Manigot | P. Maritaz | D. Fernandez | S. Rivoire | S. Royer | M. Sanguillon | J. Dubois | F. Krayzel | M. Sanguillon | D. Fernandez | P. David | P. Mugnier | D. Besin | P. Gauron | S. Hormigos | C. Goffin | H. Zaghia | P. Maritaz | T. L. Flour

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