18 September 2007 ASSIST: development of a test-infrastructure for the VLT AO facility
Author Affiliations +
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, Remko Stuik, Robin Arsenault, Robin Arsenault, Atul Deep, Atul Deep, Bernard Delabre, Bernard Delabre, Pascal Hallibert, Pascal Hallibert, Laurent Jolissaint, Laurent Jolissaint, Norbert Hubin, Norbert Hubin, Sarah Kendrew, Sarah Kendrew, Pierre-Yves Madec, Pierre-Yves Madec, Jerome Paufique, Jerome Paufique, Stefan Stroebele, 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); doi: 10.1117/12.736157; https://doi.org/10.1117/12.736157

Back to Top