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http://hdl.handle.net/20.500.12386/24778
Title: | A facility to evaluate the focusing performance of mirrors for Cherenkov Telescopes | Authors: | CANESTRARI, Rodolfo GIRO, Enrico BONNOLI, Giacomo FARISATO, Giancarlo LESSIO, Luigi RODEGHIERO, GABRIELE Spiga, ROSSELLA TOSO, Giorgio PARESCHI, Giovanni |
Issue Date: | 2016 | Journal: | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT | Number: | 806 | First Page: | 61 | Abstract: | Cherenkov Telescopes are equipped with optical dishes of large diameter - in general based on segmented mirrors - with typical angular resolution of a few arc-minutes. To evaluate the mirror's quality specific metrological systems are required that possibly take into account the environmental conditions in which typically these telescopes operate (in open air without dome protection). For this purpose a new facility for the characterization of mirrors has been developed at the labs of the Osservatorio Astronomico di Brera of the Italian National Institute of Astrophysics. The facility allows the precise measurement of the radius of curvature and the distribution of the concentred light in terms of focused and scattered components and it works in open air. In this paper we describe the facility and report some examples of its measuring capabilities. | URI: | http://hdl.handle.net/20.500.12386/24778 | URL: | https://www.sciencedirect.com/science/article/pii/S0168900215011638?via%3Dihub | ISSN: | 0168-9002 | DOI: | 10.1016/j.nima.2015.09.092 | Bibcode ADS: | 2016NIMPA.806...61C | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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ViewPageProof_NIMA_58105.pdf | postprint | 5.75 MB | Adobe PDF | View/Open |
1-s2.0-S0168900215011638-main.pdf | [Administrators only] | 4.75 MB | Adobe PDF |
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