【339】The SST-1M: A new stereoscopic Imaging Atmospheric Cherenkov Telescope system

6 Sept 2023, 19:00
15m
Room 118

Room 118

Talk Nuclear, Particle- and Astrophysics (TASK) Nuclear, Particle- & Astrophysics (TASK - FAKT)

Speaker

Matthieu Heller (Universite de Geneve (CH))

Description

The SST-1Ms are two single-mirror small-sized telescope prototypes developed by a team of Swiss, Polish and Czech institutes. The telescopes adopt a Davies-Cotton optical design, with a dish of 4 m diameter and a focal of 5.6 m. With a wide field of view of 9 degrees, SST-1M is designed to detect gamma rays in the energy range between 500 GeV and 100 TeV.
SST-1M is equipped with the DigiCam camera composed of 1296 pixels, which incorporates a fully digital readout and trigger system running at 250 MHz. Each pixel consists of a hexagonal hollow light guide coupled to silicon photomultipliers (SiPM).
Currently, two SST-1M telescopes are undergoing commissioning at the Ondrejov Observatory in the Czech Republic. A fully automatic and remote operation of the two telescopes has allowed for numerous hours of observations of the Crab Nebula and the nearest and brightest blazars Mark 421 and 501. Recently, the acquisition of stereoscopic data has been enabled improving significantly the sensitivity of the system.
This contribution will provide an overview of the telescope and camera design, including the performance evaluation of the SST-1M telescopes. Additionally, preliminary results obtained from the commissioning data collected at the observatory will be presented.

Author

Matthieu Heller (Universite de Geneve (CH))

Presentation materials