The SST-1M telescope is one of the prototypes under construction proposed to be part of the future Cherenkov Telescope Array. It uses a standard Davis-Cotton design for the optics and telescope structure, with a dish diameter of 4 meters and a large field-of-view of 9 degrees. The innovative camera design is composed of a photo-detection plane with 1296 pixels including entrance window, light concentrators, Silicon Photomultipliers (SiPMs), and pre-amplifier stages together with a fully digital readout and trigger electronics, DigiCam. In this contribution we give a general description of the analysis chain designed for the SST-1M prototype. In particular we focus on the calibration strategy used to convert the SiPM signals registered by DigiCam to the quantities needed for Cherenkov image analysis. The calibration is based on an online feedback system to stabilize the gain of the SiPMs, as well as dedicated events (dark count, pedestal, and light flasher events) to be taken during the normal operation of the prototype.
@article{arxiv.1508.06397,
title = {Camera calibration strategy of the SST-1M prototype of the Cherenokov Telescope Array},
author = {E. Prandini and M. Heller and E. Lyard and E. jr. Schioppa and A. Neronov and W. Bilnik and J. Błocki and L. Bogacz and T. Bulik and F. Cadoux and A. Christov and M. Curyło and D. della Volpe and M. Dyrda and Y. Favre and A. Frankowski and Ł. Grudnik and M. Grudzińska and B. Idźkowski and M. Jamrozy and M. Janiak and J. Kasperek and K. Lalik and E. Mach and D. Mandat and A. Marszałek and J. Michałowski and R. Moderski and T. Montaruli and J. Niemiec and M. Ostrowski and P. Paśko and M. Pech and A. Porcelli and M. Rameez and P. Rajda and P. Schovanek and K. Seweryn and K. Skowron and V. Sliusar and M. Sowiński and Ł. Stawarz and M. Stodulska and M. Stodulski and S. Toscano and I. Troyano Pujadas and R. Walter and M. Więcek and A. Zagdański and K. Ziętara and P. Żychowski},
journal= {arXiv preprint arXiv:1508.06397},
year = {2019}
}
Comments
In Proceedings of the 34th International Cosmic Ray Conference (ICRC2015), The Hague, The Netherlands. All CTA contributions at arXiv:1508.05894