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Título: | Delivery and integration of MEGARA at GTC: the process of going from laboratory to the telescope |
Autor: | Pérez-Calpena, Ana; García-Vargas, Marísa-Luisa Luisa; Gil de Paz, Armando; Castillo Morales, África; Martínez Delgado, Ismael; Maldonado, Manuel CSIC ORCID ; Sánchez-Blanco Mancera, Ernesto; Sánchez, Ainhoa; Verdet, Antonio; Lefort, Bertrand; Pascual, Sergio; Curto, Andrés CSIC; García, Oscar; Arrillaga, Xabier; Carrera, Ignacio; Gonzalez, Eider; Gallego, Jesús; Carrasco Licea, Esperanza; Iglesias-Páramo, J. CSIC ORCID; Cedazo, Raquel | Palabras clave: | MEGARA GTC Integral field unit (IFU) Multi-object spectrograph (MOS) Fiber bundles Packing Delivery Integration Verification |
Fecha de publicación: | 2018 | Editor: | International Society for Optical Engineering | Citación: | Proceedings of SPIE 10705: 107050A (2018) | Resumen: | MEGARA is an IFU & MOS medium-resolution spectrograph that finished its commissioning at the GTC 10m telescope on August 2017. MEGARA is a fiber-fed high-resolution spectrograph with two major units, Fiber-MOS & Spectrograph, that are now located at the Folded-Cass F and Nasmyth-A foci of GTC respectively. These are linked by more than 1200 fibers 44.5m-length split between two observing modes, the LCB (Integral Field Unit, IFU) and a Multi-Object (MOS) capability with 92 robotic positioners each one provided with a mini-bundle of 7 fibers. The spectrograph can accommodate 18 VPHs (11 of them can be simultaneously mounted) covering the visible wavelength range at Resolving Powers between R=6000-20000. This paper presents the sequence of tasks carried out after Laboratory Acceptance at the Universidad Complutense de Madrid to move the whole instrument to the GTC. A detailed day-to-day plan was followed to disassemble, pack, transport, reintegrate the full instrument at the GTC and to verify performance to ensure the instrument was ready for commissioning. The lessons learnt are relevant to other double-focus instruments being developed such as WEAVE@WHT or PFS@Subaru. © 2018 SPIE. | Versión del editor: | http://dx.doi.org/10.1117/12.2311903 | URI: | http://hdl.handle.net/10261/215526 | DOI: | 10.1117/12.2311903 | Identificadores: | doi: 10.1117/12.2311903 issn: 0277-786X isbn: 978-1-5106-1964-7 |
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