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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 661013.0, MPI für Astronomie / Publikationen_mpia
LINC-NIRVANA Pathfinder: testing the next generation of wave front sensors at LBT
Authors:Conrad, A. R.; Arcidiacono, C.; Baumeister, H.; Bergomi, M.; Bertram, T.; Berwein, J.; Biddick, C.; Bizenberger, P.; Brangier, M.; Briegel, F.; Brunelli, A.; Brynnel, J.; Busoni, L.; Cushing, N.; De Bonis, F.; De La Pena, M.; Esposito, S.; Farinato, J.; Fini, L.; Green, R. F.; Herbst, T.; Hofferbert, R.; Kittmann, F.; Kuerster, M.; Laun, W.; Meschke, D.; Mohr, L.; Pavlov, A.; Pott, J.-U.; Puglisi, A.; Ragazzoni, R.; Rakich, A.; Rohloff, R.-R.; Trowitzsch, J.; Viotto, V.; Zhang, X.
Date of Publication (YYYY-MM-DD):2012
Title of Proceedings:Adaptive Optics Systems III
Start Page:id. 84470V-84470V-10id. 84470V-84470V
End Page:10
Volume (in Series):8447
Name of Conference/Meeting:Adaptive Optics Systems III
Audience:Not Specified
Abstract / Description:LINC-NIRVANA will employ four wave front sensors to realize multi-conjugate correction on both arms of a Fizeau interferometer for LBT. Of these, one of the two ground-layer wave front sensors, together with its infrared test camera, comprise a stand-alone test platform for LINC-NIRVANA. Pathfinder is a testbed for full LINC-NIRVANA intended to identify potential interface problems early in the game, thus reducing both technical, and schedule, risk. Pathfinder will combine light from multiple guide stars, with a pyramid sensor dedicated to each star, to achieve ground-layer AO correction via an adaptive secondary: the 672-actuator thin shell at the LBT. The ability to achieve sky coverage by optically coadding light from multiple stars has been previously demonstrated; and the ability to achieve correction with an adaptive secondary has also been previously demonstrated. Pathfinder will be the first system at LBT to combine both of these capabilities. Since reporting our progress at A04ELT2, we have advanced the project in three key areas: definition of specific goals for Pathfinder tests at LBT, more detail in the software design and planning, and calibration. We report on our progress and future plans in these three areas, and on the project overall.
Comment of the Author/Creator:Date: 2012, July 1, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
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