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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29484
Title: The calibration procedure of the LINC-NIRVANA ground and high layer WFS
Authors: ARCIDIACONO, CARMELO 
RADHAKRISHNAN SANTHAKUMARI, KALYAN KUMAR 
VIOTTO, VALENTINA 
BERGOMI, Maria 
Briegel, Florian
Bertram, Thomas
MARAFATTO, Luca
Herbst, Tom
FARINATO, JACOPO 
RAGAZZONI, Roberto 
Hofferbert, Ralph
Kürster, Martin
Kittmann, Frank
Berwein, Jürgen
Baumeister, Harald
Issue Date: 2018
Volume: Adaptive Optics Systems VI
Editors: Close, Laird M.; Schreiber, Laura; Schmidt, Dirk
Series: PROCEEDINGS OF SPIE 
Number: 10703
First Page: 107034R
Abstract: LINC-NIRVANA (LN) is a MCAO module currently mounted on the Rear Bent Gregorian focus of the Large Binocular Telescope (LBT). It mounts a camera originally design to realize the interferometric imaging focal station of the LBT. LN follows the LBT strategy having two twin channels: a double Layer Oriented multi-conjugate adaptive optics system assists the two arms, supplying high order wave-front correction. In order to counterbalance the field rotation a mechanical derotation is applied for the two ground wave-front sensors, and an optical (K-mirror) one for the two high layers sensors, fixing the positions of the focal planes with respect to the pyramids aboard the wavefront sensors. The derotation introduces a pupil images rotation on the wavefront sensors changing the projection of the deformable mirrors on the sensor consequently. The soft real-time computer load the matrix corresponding to the needed at one degree step. Calibrations were performed in daytime only and using optical fibers.
Conference Name: Adaptive Optics Systems VI
Conference Place: Austin, Texas, United States
Conference Date: 10 - 15 June, 2018
URI: http://hdl.handle.net/20.500.12386/29484
URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10703/2313152/The-calibration-procedure-of-the-LINC-NIRVANA-ground-and-high/10.1117/12.2313152.full?SSO=1
https://ui.adsabs.harvard.edu/link_gateway/2018SPIE10703E..4RA/EPRINT_HTML
ISSN: 0277-786X
ISBN: 9781510619593
9781510619609
DOI: 10.1117/12.2313152
Bibcode ADS: 2018SPIE10703E..4RA
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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