Active optics system of the ASTRI SST-2M prototype for the Cherenkov Telescope Array

Daniele Gardiol; Gerardo Capobianco; Daniela Fantinel; Enrico Giro; Luigi Lessio; Davide Loreggia; Gabriele Rodeghiero; Federico Russo; Antonio C. Volpicelli

doi:10.1117/12.2055079

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7 August 2014 Active optics system of the ASTRI SST-2M prototype for the Cherenkov Telescope Array

Daniele Gardiol, Gerardo Capobianco, Daniela Fantinel, Enrico Giro, Luigi Lessio, Davide Loreggia, Gabriele Rodeghiero, Federico Russo, Antonio C. Volpicelli

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Proceedings Volume 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation; 915103 (2014) https://doi.org/10.1117/12.2055079
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) SST-2M is an end-to-end prototype of Small Size class of Telescope for the Cherenkov Telescope Array. It will apply a dual mirror configuration to Imaging Atmospheric Cherenkov Telescopes. The 18 segments composing the primary mirror (diameter 4.3 m) are equipped with an active optics system enabling optical re-alignment during telescope slew. The secondary mirror (diameter 1.8 m) can be moved along three degrees of freedom to perform focus and tilt corrections. We describe the kinematic model used to predict the system performance as well as the hardware and software design solution that will be implemented for optics control.

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Daniele Gardiol, Gerardo Capobianco, Daniela Fantinel, Enrico Giro, Luigi Lessio, Davide Loreggia, Gabriele Rodeghiero, Federico Russo, and Antonio C. Volpicelli "Active optics system of the ASTRI SST-2M prototype for the Cherenkov Telescope Array", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915103 (7 August 2014); https://doi.org/10.1117/12.2055079

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