Latest developments on the loop control system of AdOpt@TNG

Adriano Ghedina; Wolfgang Gaessler; Massimo Cecconi; Roberto Ragazzoni; Alfio T. Puglisi; Fulvio De Bonis

doi:10.1117/12.551239

25 October 2004 Latest developments on the loop control system of AdOpt@TNG

Adriano Ghedina, Wolfgang Gaessler, Massimo Cecconi, Roberto Ragazzoni, Alfio T. Puglisi, Fulvio De Bonis

Author Affiliations +

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.551239
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The Adaptive Optics System of the Galileo Telescope (AdOpt@TNG) is the only adaptive optics system mounted on a telescope which uses a pyramid wavefront snesor and it has already shown on sky its potentiality. Recently AdOpt@TNG has undergone deep changes at the level of its higher orders control system. The CCD and the Real Time Computer (RTC) have been substituted as a whole. Instead of the VME based RTC, due to its frequent breakdowns, a dual pentium processor PC with Real-Time-Linux has been chosen. The WFS CCD, that feeds the images to the RTC, was changed to an off-the-shelf camera system from SciMeasure with an EEV39 80x80 pixels as detector. While the APD based Tip/Tilt loop has shown the quality on the sky at the TNG site and the ability of TNG to take advantage of this quality, up to the diffraction limit, the High-Order system has been fully re-developed and the performance of the closed loop is under evaluation to offer the system with the best performance to the astronomical community.

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Adriano Ghedina, Wolfgang Gaessler, Massimo Cecconi, Roberto Ragazzoni, Alfio T. Puglisi, and Fulvio De Bonis "Latest developments on the loop control system of AdOpt@TNG", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.551239; https://doi.org/10.1117/12.551239

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