22 July 2014 The ASTRI SST-2M prototype for the Cherenkov Telescope Array: prototype technologies goals and strategies for the future SST
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Abstract
The Cherenkov Telescope Array (CTA) observatory will represent the next generation of Imaging Atmospheric Cherenkov Telescope. Using a combination of large-, medium-, and small-scale telescopes (LST, MST, SST, respectively), it will explore the Very High Energy domain from a few tens of GeVup to about few hundreds of TeV with unprecedented sensitivity, angular resolution and imaging quality. In this framework, the Italian ASTRI program, led by the Italian National Institute of Astrophysics (INAF) developed a 4-meter class telescope, which will adopt an aplanatic, wide-field, double-reflection optical layout in a Schwarzschild- Couder configuration. Within this program INAF assigned to the consortium between Galbiati Group and EIE Group the construction, assembly and tests activities of the prototype named ASTRI SST-2M. On the basis of the lesson learnt from the prototype, other telescopes will be produced, starting from a re-design phase, in order to optimize performances and the overall costs and production schedule for the CTA-SST telescope. This paper will firstly give an overview of the concept for the SST prototype mount structure. In this contest, the technologies adopted for the design, manufacturing and tests of the entire system will be presented. Moreover, a specific focus on the challenges of the prototype and the strategies associated with it will be provided, in order to outline the near future performance goals for this type of Cherenkov telescopes employed for Gamma ray science.
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Gianpietro Marchiori, Andrea Busatta, Stefano Giacomel, Ivan Folla, Marco Valsecchi, Rodolfo Canestrari, Giacomo Bonnoli, Enrico Cascone, Paolo Conconi, Mauro Fiorini, Enrico Giro, Nicola La Palombara, Giovanni Pareschi, Luca Perri, Gabriele Rodeghiero, Giorgia Sironi, Luca Stringhetti, Giorgio Toso, Gino Tosti, Carlo Pellicciari, "The ASTRI SST-2M prototype for the Cherenkov Telescope Array: prototype technologies goals and strategies for the future SST", Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91450L (22 July 2014); doi: 10.1117/12.2057607; https://doi.org/10.1117/12.2057607
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