Orateur
Raphaël Chalmé-Calvet
(LPNHE)
Description
The H.E.S.S. cameras require a precise and regular calibration over time, to reconstruct the gamma-ray characteristics. The different sub-systems used to determine the gain and the uniformity of the PMTs and their evolution with time are presented. Then, we focus on the absolute energy scale calibration, by using a full reconstruction of isolated muons recorded during normal observation, which is directly connected to atmospheric absorption. The method and the evolution of the absolute overall light collection efficiency are shown.
Auteur principal
Raphaël Chalmé-Calvet
(LPNHE)
