27 June 2006 ASSIST: the Adaptive Secondary Setup and Instrument Stimulator
Author Affiliations +
Abstract
In telescopes with a Deformable Secondary Mirror, the testing and calibration of both the DSM itself as well as the instruments using this DSM are expensive and time consuming processes. Especially in telescopes without an intermediate focus before the DSM, a number of calibrations can only be performed on a real star during night time. A full suite of Adaptive Optics systems and AO-assisted instruments is currently under development for the VLT, also know as the VLT Adaptive Telescope. ASSIST was developed to assist in the integration and testing of three elements of the VLT Adaptive Telescope Facility; the DSM; the MUSE AO system 'GALACSI' and the HAWK-I AO system 'GRAAL.' The core of ASSIST is a support infrastructure to integrate the DSM in a compact and stable test setup. A Nasmyth rotator simulator will be provided for attaching the two AO systems, while ASSIST will be fed by a star simulator and turbulence generator for realistic performance measurements of both the DSM as well as the AO system under test. An on-axis high-speed interferometer will be used for additional testing of the functional operation of the DSM. In this paper we present the requirements and design of ASSIST and the projected performance of the test bench for both the testing and calibration of the DSM as well as for the two AO systems under test.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Remko Stuik, Robin Arsenault, Bernard Delabre, Simone Esposito, Pascal Hallibert, Norbert Hubin, Andreas Quirrenbach, Armando Riccardi, Stefan Stroebele, Ramon Vink, "ASSIST: the Adaptive Secondary Setup and Instrument Stimulator", Proc. SPIE 6272, Advances in Adaptive Optics II, 62720Z (27 June 2006); doi: 10.1117/12.671574; https://doi.org/10.1117/12.671574
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

NFIRAOS: TMT's facility adaptive optics system
Proceedings of SPIE (July 12 2010)
Deploying the testbed for the VLT adaptive optics facility ...
Proceedings of SPIE (September 13 2012)
ASSIST development of a test infrastructure for the VLT...
Proceedings of SPIE (September 18 2007)
ASSIST: the test setup for the VLT AO facility
Proceedings of SPIE (July 16 2008)
Ῑmaka: a Lagrange invariant of ELTs
Proceedings of SPIE (July 27 2010)

Back to Top