Large Scale Characterization And Calibration Strategy Of A Sipm-Based Camera For Gamma-Ray Astronomy

The SST-1M is a 4-m diameter mirror Davies-Cotton gamma-ray telescope. It has been designed to cover the energy range above similar to 500 GeV and to be part of an array of telescopes separated by similar to 150 - 200 m. Its innovative camera is featuring large area hexagonal silicon photo-multipliers as photon detectors and a fully digital trigger and readout system. Here, the strategy and the methods for its calibration are presented, together with the obtained results. In particular, the off and on-site calibration strategies are demonstrated on the first camera prototype. The performances of the camera in terms of charge and time resolution are described.