CERN Accelerating science

Preprint
Report number	arXiv:1508.06397
Title	Camera calibration strategy of the SST-1M prototype of the Cherenokov Telescope Array
Author(s)	Prandini, E (INFN, Padua ; Padua U.) ; Heller, M. (CERN) ; Lyard, E. (Geneva U.) ; Schioppa, E. jr. ; Neronov, A. (ISDC, Versoix) ; Bilnik, W. ; Błocki, J. (Cracow, INP) ; Bogacz, L. (Bielefeld U. ; Jagiellonian U.) ; Bulik, T. (Warsaw U.) ; Cadoux, F. (Geneva U.) ; Christov, A. (Geneva U.) ; Curyło, M. ; della Volpe, D. (INFN, Naples ; Naples U.) ; Dyrda, M. (Cracow, INP) ; Favre, Y. (Geneva U.) ; Frankowski, A. (Brussels U., IAA) ; Grudnik, Ł. ; Grudzińska, M. ; Idźkowski, B. ; Jamrozy, M. (Jagiellonian U.) ; Janiak, M. (Warsaw, Copernicus Astron. Ctr.) ; Kasperek, J. (AGH-UST, Cracow) ; Lalik, K. ; Mach, E. ; Mandat, D. (Prague, Inst. Phys.) ; Marszałek, A. (Jagiellonian U. (main)) ; Michałowski, J. (Cracow, INP) ; Moderski, R. (Warsaw, Copernicus Astron. Ctr.) ; Montaruli, T. (Geneva U.) ; Niemiec, J. ; Ostrowski, M. ; Paśko, P. ; Pech, M. (Palacky U.) ; Porcelli, A. (KIT, Karlsruhe, IKP) ; Rameez, M. (Geneva U.) ; Rajda, P. (AGH-UST, Cracow) ; Schovanek, P. (Prague, Inst. Phys.) ; Seweryn, K. (Warsaw, Space Res. Ctr.) ; Skowron, K. ; Sliusar, V. ; Sowiński, M. (Cracow, INP) ; Stawarz, Ł. (Jagiellonian U., Astron. Observ. ; JAXA, Sagamihara) ; Stodulska, M. ; Stodulski, M. (Krakow Inst. Nucl. Phys.) ; Toscano, S. (Wisconsin U., Madison) ; Pujadas, I. Troyano ; Walter, R. (Geneva U.) ; Więcek, M. ; Zagdański, A. (Jagiellonian U.) ; Ziętara, K. (Jagiellonian U. (main)) ; Żychowski, P. (Cracow, INP)
Publication	2015
Collaboration	for the CTA consortium
Imprint	26 Aug 2015
Note	Comments: In Proceedings of the 34th International Cosmic Ray Conference (ICRC2015), The Hague, The Netherlands. All CTA contributions at arXiv:1508.05894
Presented at	34th International Cosmic Ray Conference, The Hague, The Netherlands, 30 Jul - 6 Aug 2015
Subject category	Astrophysics and Astronomy
Abstract	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.
Other source	Inspire
Copyright/License	arXiv nonexclusive-distrib. 1.0