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Proceedings Paper

Influence of restricted FOV and CCD binning in SH-WFS on the performance of NAOMI
Author(s): Ilona K. Soechting; Richard W. Wilson; Richard M. Myers; Andy J. Longmore; Chris R. Benn; Roy Ostensen; Sebastian Els; Steven Goodsell; Tom Gregory; Gordon Talbot
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Paper Abstract

Using a unique combination of empirical data collected simultaneously by the science camera (INGRID) and the wave front sensor in NAOMI plus the same night profiles of the turbulent layers measured by SLODAR, we discuss the accuracy of the analytic approach to modelling of AO performance. The WFS frames recorded for different atmospheric conditions allow us to make a detailed investigation of the influence of a restricted field of view and sampling of the WFS on the accuracy of the centre of gravity and its propagation to the residual variance. The predictions of Strehl, FWHM and FWHE derived for NAOMI+INGRID using our analytic approach are compared with on-sky performance demonstrated during the commissioning and science observations with NAOMI.

Paper Details

Date Published: 25 October 2004
PDF: 6 pages
Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.552046
Show Author Affiliations
Ilona K. Soechting, Univ. of Oxford (United Kingdom)
Richard W. Wilson, Univ. of Durham (United Kingdom)
Richard M. Myers, Univ. of Durham (United Kingdom)
Andy J. Longmore, UK Astronomy Technology Ctr. (United Kingdom)
Royal Observatory Edinburgh (United Kingdom)
Chris R. Benn, Isaac Newton Group of Telescopes (Spain)
Roy Ostensen, Isaac Newton Group of Telescopes (Spain)
Sebastian Els, Isaac Newton Group of Telescopes (Spain)
Steven Goodsell, Isaac Newton Group of Telescopes (Spain)
Tom Gregory, Isaac Newton Group of Telescopes (Spain)
Gordon Talbot, Isaac Newton Group of Telescopes (Spain)

Published in SPIE Proceedings Vol. 5490:
Advancements in Adaptive Optics
Domenico Bonaccini Calia; Brent L. Ellerbroek; Roberto Ragazzoni, Editor(s)

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