Paper
18 September 2007 ASSIST: development of a test-infrastructure for the VLT AO facility
Author Affiliations +
Abstract
ASSIST - The Adaptive Secondary Setup and Instrument STimulator is a test setup to verify the operation of three elements of the VLT Adaptive Optics Facility, namely the Deformable Secondary Mirror (DSM) and the two AO systems using this DSM, the AO system for the visible light integral field spectrograph MUSE (GALACSI) and the AO system for the IR wide field imager HAWK-I (GRAAL). To support the testing of these elements, ASSIST will provide both an interferometry setup for testing the DSM as well as a full atmospheric turbulence simulator and star simulator to mimic the conditions at the telescope. To test the instruments using the DSM, the output beam is matched the output beam of the VLT telescope, including the correct exit-pupil and high-quality imaging and a similar hardware interface is provided. Since one of the modes to be verified is nearly diffraction limited, also the thermal and vibrational stability are very important, with strong constraints on both the mechanical as well as the optical design.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Remko Stuik, Robin Arsenault, Atul Deep, Bernard Delabre, Pascal Hallibert, Laurent Jolissaint, Norbert Hubin, Sarah Kendrew, Pierre-Yves Madec, Jerome Paufique, and Stefan Stroebele "ASSIST: development of a test-infrastructure for the VLT AO facility", Proc. SPIE 6691, Astronomical Adaptive Optics Systems and Applications III, 669104 (18 September 2007); https://doi.org/10.1117/12.736157
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Adaptive optics

Mirrors

Calibration

Telescopes

Optical design

Stars

Image quality

Back to Top