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http://hdl.handle.net/20.500.12386/26571
Title: | Towards the cryogenic sliding mechanism for MOONS-ESO | Authors: | TOZZI, Andrea CARBONARO, LUCA OLIVA, Ernesto Iuzzolino, M. Strachan, J. Rees, P. |
Issue Date: | 2016 | Volume: | Ground-based and Airborne Instrumentation for Astronomy VI | Editors: | Evans, Christopher J.; Simard, Luc; Takami, Hideki | Series: | PROCEEDINGS OF SPIE | Number: | 9908 | First Page: | 99087Z | Abstract: | The Multi-Object Optical and Near-Infrared Spectrograph (MOONS) shall be installed at one of the Very Large Telescopes (VLT) at the European Southern Observatory (ESO) in Paranal Chile. The instrument is being designed and built by an international consortium on behalf of ESO. The design is based on a three arms configuration, RI, YJ and H band, where RI and H have two possible resolutions. To achieve this goal it will be necessary to implement a sliding mechanism changing the dispersers, the filters and the cross dispersion prisms. This article describes the cryogenic exchanger mechanism that is under realization and the preliminary mechanical and optical tests that we have done at the cryogenic facility of Arcetri observatory of Florence. Parts of these test are based on interferometric measurements of the optics to study the behaviour of the mechanical supporting structure, and part are based on the cryogenic sliding system that will be used to move approximately 200 Kg of mass for 350 mm of travel range. The cryogenic sliding system, rails, screws, motors, is based on commercial components as the position measurement device that is based on commercial potentiometers. The results of the tests and performances at cryogenic temperature are reported in this paper. | Conference Name: | Ground-based and Airborne Instrumentation for Astronomy VI | Conference Place: | Edinburgh, United Kingdom | Conference Date: | 26 June - 1 July 2016 | URI: | http://hdl.handle.net/20.500.12386/26571 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9908/1/Towards-the-cryogenic-sliding-mechanism-for-MOONS-ESO/10.1117/12.2231906.full | ISSN: | 0277-786X | ISBN: | 9781510601963 | DOI: | 10.1117/12.2231906 | Bibcode ADS: | 2016SPIE.9908E..7ZT | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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File | Description | Size | Format | |
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SPIE99087Z.pdf | Pdf editoriale | 1.25 MB | Adobe PDF | View/Open |
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