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Proceedings Paper

The ASTRI SST-2M prototype for the next generation of Cherenkov telescopes: a single framework approach from requirement analysis to integration and verification strategy definition
Author(s): Mauro Fiorini; Nicola La Palombara; Luca Stringhetti; Rodolfo Canestrari; Osvaldo Catalano; Enrico Giro; Giuseppe Leto; Maria Concetta Maccarone; Giovanni Pareschi; Gino Tosti; Stefano Vercellone
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Paper Abstract

ASTRI is a flagship project of the Italian Ministry of Education, University and Research, which aims to develop an endto- end prototype of one of the three types of telescopes to be part of the Cherenkov Telescope Array (CTA), an observatory which will be the main representative of the next generation of Imaging Atmospheric Cherenkov Telescopes. The ASTRI project, led by the Italian National Institute of Astrophysics (INAF), has proposed an original design for the Small Size Telescope, which is aimed to explore the uppermost end of the Very High Energy domain up to about few hundreds of TeV with unprecedented sensitivity, angular resolution and imaging quality. It is characterized by challenging and innovative technological solutions which will be adopted for the first time in a Cherenkov telescope: a dual-mirror Schwarzschild-Couder configuration, a modular, light and compact camera based on silicon photomultipliers, and a front-end electronic based on a specifically designed ASIC. The end-to-end project is also including all the data-analysis software and the data archive. In this paper we describe the process followed to derive the ASTRI specifications from the CTA general requirements, a process which had to take into proper account the impact on the telescope design of the different types of the CTA requirements (performance, environment, reliability-availability-maintenance, etc.). We also describe the strategy adopted to perform the specification verification, which will be based on different methods (inspection, analysis, certification, and test) in order to demonstrate the telescope compliance with the CTA requirements. Finally we describe the integration planning of the prototype assemblies (structure, mirrors, camera, control software, auxiliary items) and the test planning of the end-to-end telescope. The approach followed by the ASTRI project is to have all the information needed to report the verification process along all project stages in a single layer. From this unique layer it is possible to, in a semi-automatic way, generate updated project documentation and progress report.

Paper Details

Date Published: 4 August 2014
PDF: 8 pages
Proc. SPIE 9150, Modeling, Systems Engineering, and Project Management for Astronomy VI, 915024 (4 August 2014); doi: 10.1117/12.2054865
Show Author Affiliations
Mauro Fiorini, INAF - IASF Milano (Italy)
Nicola La Palombara, INAF - IASF Milano (Italy)
Luca Stringhetti, INAF - IASF Milano (Italy)
Rodolfo Canestrari, INAF - Osservatorio Astronomico di Brera (Italy)
Osvaldo Catalano, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (Italy)
Enrico Giro, INAF - Osservatorio Astronomico di Padova (Italy)
Giuseppe Leto, INAF - Osservatorio Astrofisico di Catania (Italy)
Maria Concetta Maccarone, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (Italy)
Giovanni Pareschi, INAF - Osservatorio Astronomico di Brera (Italy)
Gino Tosti, Univ. degli Studi di Perugia (Italy)
Stefano Vercellone, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (Italy)

Published in SPIE Proceedings Vol. 9150:
Modeling, Systems Engineering, and Project Management for Astronomy VI
George Z. Angeli; Philippe Dierickx, Editor(s)

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