24 July 2014 Manufacturing, integration, and test results of the MATISSE cold optics bench
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Abstract
MATISSE is the second-generation mid-infrared interferometric spectrograph and imager for ESO’s Very Large Telescope Interferometer (VLTI). NOVA-ASTRON is responsible for the Cold Optics Bench (COB), representing the last part of the optics train where the four beams are re-arranged, spectrally dispersed and combined. The COB consist of two sister units, one for the LM-band, one for the N-band, which were successively completed at NOVA-ASTRON in autumn 2013 and spring 2014. The LM-band COB is under cryogenic test in its cryostat at MPIA/Heidelberg; the N-band COB finished cryogenic tests and has been installed at OCA/Nice for integration together with the Warm Optics. This paper focuses on the manufacturing, integration and test results of the COBs, and gives an overview of the current status.
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Felix C. M. Bettonvil, G. Kroes, T. Agoćs, A. van Duin, E. Elswijk, M. de Haan, R. ter Horst, J. Kragt, J. Kuindersma, R. Navarro, R. Roelfsema, M. Schuil, T. Tromp, L. Venema, F. van Kessel, A. Jaskó, "Manufacturing, integration, and test results of the MATISSE cold optics bench", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91477Q (24 July 2014); doi: 10.1117/12.2056997; https://doi.org/10.1117/12.2056997
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