Performance of a small size telescope (SST-1M) camera for gamma-ray astronomy with the Cherenkov Telescope Array
I. Al Samarai*, F.R. Cadoux, V. Coco, C. Alispach, D. Della Volpe, Y. Favre,
M. Heller, T. Montaruli, T.R. Njoh Ekoume, I. Troyano Pujadas, É. Lyard, H. Nagai, A. Neronov, R. Walter, V. Sliusar, E. Mach, J. Niemiec, J. Michałowski, J. Rafalski, P.K. Skowronski, M. Stodulska, M. Stodulski, T. Bulik, M. Grudzinska, M. Jamrozy, M. Ostrowski, L. Stawarz, A. Zagdanski, K. Zietara, P. Pasko, S. Kowalski, R. Moderski, J. Borkowski, J. Kasperek, P. Rajda, D. Mandat, M. Pech, P. Schovanek, P. Travnicek on behalf of the CTA SST-1M Projectet al. (click to show)
Pre-published on:
August 16, 2017
Published on:
August 03, 2018
Abstract
The foreseen implementations of the Small Size Telescopes (SST) in CTA will provide unique
insights into the highest energy gamma rays offering fundamental means to discover and understand
the sources populating the Galaxy and our local neighborhood. Aiming at such a goal, the
SST-1M is one of the three different implementations that are being prototyped and tested for
CTA. SST-1M is a Davies-Cotton single mirror telescope equipped with a unique camera technology
based on SiPMs with demonstrated advantages over classical photomultipliers in terms of
duty-cycle.
In this contribution, we describe the telescope components, the camera, and the trigger and readout
system. The results of the commissioning of the camera using a dedicated test setup are then
presented. The performances of the camera first prototype in terms of expected trigger rates and
trigger efficiencies for different night-sky background conditions are presented, and the camera
response is compared to end-to-end simulations.
DOI: https://doi.org/10.22323/1.301.0758
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