Performance of the upgraded H.E.S.S. cameras

T. Ashton , M. Backes , A. Balzer , D. Berge , S. Bonnefoy , F. Brun (1) , T. Chaminade (1) , E. Delagnes (1) , G. Fontaine (2) , M. Füssling , G. Giavitto , B. Giebels (2) , J.F. Glicenstein (1) , T. Gräber , J.A. Hinton , A. Jahnke , M. Kossatz , A. Kretzschmann , V. Lefranc (1) , H. Leich , J.P. Lenain (3) , H. Lüdecke , I. Lypova , P. Manigot (2) , V. Marandon , E. Moulin (1) , M. de Naurois (2) , P. Nayman (3) , S. Ohm , M. Penno , D. Ross , D. Salek , M. Schade , T. Schwab , K. Shiningayamwe , C. Stegmann , C. Steppa , J. Thornhill , F. Toussenel (3)

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 LLR - Laboratoire Leprince-Ringuet
3 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies

The 14 years old cameras of the H.E.S.S. 12-m telescopes have been upgraded in 2015/2016, with the goals of reducing the system failure rate, reducing the dead time and improving the overall performance of the array. This conference contribution describes the various tests that were carried out on the cameras and their sub-components both in the lab and on site. It also gives an overview of the commissioning and calibration procedures adopted during and after the installation, including e.g. flat-fielding and trigger threshold scans. Finally, it reports in detail about the overall performance of the four new H.E.S.S-I cameras, using very recent data.

Mots clés: activity report; performance; HESS; calibration; detector: upgrade

Domaines: Instrumentations et Détecteurs [physics.ins-det]

T. Ashton, M. Backes, A. Balzer, D. Berge, S. Bonnefoy, et al.. Performance of the upgraded H.E.S.S. cameras. 35th International Cosmic Ray Conference, Jul 2017, Busan, South Korea. pp.805, ⟨10.22323/1.301.0805⟩. ⟨hal-01891424⟩