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Proceedings Paper

The ASTRI SST-2M prototype for the Cherenkov Telescope Array: opto-mechanical performance
Author(s): Rodolfo Canestrari; Enrico Giro; Giorgia Sironi; Elisa Antolini; Dino Fugazza; Salvatore Scuderi; Gino Tosti; Claudio Tanci; Federico Russo; Daniele Gardiol; Carlos Eduardo Fermino; Luca Stringhetti; Giovanni Pareschi; G. Marchiori; A. Busatta; E. Marcuzzi; I. Folla
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Paper Abstract

ASTRI SST-2M is an end-to-end telescope prototype developed by the Italian National Institute of Astrophysics (INAF) in the framework of the Cherenkov Telescope Array (CTA). The CTA observatory, with a combination of large-, medium-, and small-sized telescopes (LST, MST and SST, respectively), will represent the next generation of imaging atmospheric Cherenkov telescopes. It will explore the very high-energy domain from a few tens of GeV up to few hundreds of TeV.

The ASTRI SST-2M telescope structure and mirrors have been installed at the INAF observing station at Serra La Nave, on Mt. Etna (Sicily, Italy) in September 2014. Its performance verification phase began in autumn 2015. Part of the scheduled activities foresees the study and characterization of the optical and opto-mechanical performance of the telescope prototype.

In this contribution we report the results achieved in terms of kinematic model analysis, mirrors reflectivity evolution, telescopes positioning, flexures and pointing model and the thermal behavior.

Paper Details

Date Published: 8 August 2016
PDF: 14 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 990619 (8 August 2016); doi: 10.1117/12.2232270
Show Author Affiliations
Rodolfo Canestrari, INAF - Osservatorio Astronomico di Brera (Italy)
Enrico Giro, INAF - Osservatorio Astronomico di Padova (Italy)
Giorgia Sironi, INAF - Osservatorio Astronomico di Brera (Italy)
Elisa Antolini, Univ. degli Studi di Perugia (Italy)
Dino Fugazza, INAF - Osservatorio Astronomico di Brera (Italy)
Salvatore Scuderi, INAF - Osservatorio Astrofisico di Catania (Italy)
Gino Tosti, Univ. degli Studi di Perugia (Italy)
Claudio Tanci, INAF - Osservatorio Astronomico di Brera (Italy)
Federico Russo, INAF - Osservatorio Astrofisico di Torino (Italy)
Daniele Gardiol, INAF - Osservatorio Astrofisico di Torino (Italy)
Carlos Eduardo Fermino, Univ. de Sao Paulo (Brazil)
Luca Stringhetti, INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano (Italy)
Giovanni Pareschi, INAF - Osservatorio Astronomico di Brera (Italy)
G. Marchiori, EIE Group s.r.l. (Italy)
A. Busatta, EIE Group s.r.l. (Italy)
E. Marcuzzi, EIE Group s.r.l. (Italy)
I. Folla, Galbiati Group (Italy)

Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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