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http://hdl.handle.net/20.500.12386/23660
Title: | Sardinia Radio Telescope | Authors: | BOLLI, Pietro ORLATI, ANDREA STRINGHETTI, LUCA ORFEI, ALESSANDRO RIGHINI, SIMONA Ambrosini, R. BARTOLINI, MARCO BORTOLOTTI, CLAUDIO BUFFA, Franco BUTTU, Marco CATTANI, ALESSANDRO D'AMICO, NICOLO' DEIANA, Gian Luigi FARA, Antonietta Angela Rita FIOCCHI, FRANCO GAUDIOMONTE, Francesco MACCAFERRI, ANDREA MARIOTTI, SERGIO MARONGIU, Pasqualino MELIS, Andrea MIGONI, CARLO MORSIANI, MARCO NANNI, MAURO Nasyr, F. PELLIZZONI, ALBERTO PAOLO PISANU, Tonino POLONI, MARCO POPPI, Sergio PORCEDDU, Ignazio Enrico Pietro PRANDONI, ISABELLA RODA, JURI ROMA, MAURO SCALAMBRA, ALESSANDRO SERRA, Giampaolo TROIS, ALESSIO Valente, G. VARGIU, GIAN PAOLO ZACCHIROLI, GIAMPAOLO |
Issue Date: | 2015 | Journal: | JOURNAL OF ASTRONOMICAL INSTRUMENTATION | Number: | 4 | First Page: | 1550008-880 | Abstract: | In the period 2012 June-2013 October, the Sardinia Radio Telescope (SRT) went through the technical commissioning phase. The characterization involved three first-light receivers, ranging in frequency between 300MHz and 26GHz, connected to a Total Power back-end. It also tested and employed the telescope active surface installed in the main reflector of the antenna. The instrument status and performance proved to be in good agreement with the expectations in terms of surface panels alignment (at present 300μmrms to be improved with microwave holography), gain (̃0.6K/Jy in the given frequency range), pointing accuracy (5 arcsec at 22GHz) and overall single-dish operational capabilities. Unresolved issues include the commissioning of the receiver centered at 350MHz, which was compromised by several radio frequency interferences, and a lower-than-expected aperture efficiency for the 22-GHz receiver when pointing at low elevations. Nevertheless, the SRT, at present completing its Astronomical Validation phase, is positively approaching its opening to the scientific community. | URI: | http://hdl.handle.net/20.500.12386/23660 | URL: | https://www.worldscientific.com/doi/full/10.1142/S2251171715500087 | ISSN: | 2251-1725 | DOI: | 10.1142/S2251171715500087 | Bibcode ADS: | 2015JAI.....450008B | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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s2251171715500087.pdf | pdf editoriale | 3.05 MB | Adobe PDF | View/Open |
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