Integration and characterization of the cryogenic system of MEGARA

D. Ferrusca R.; M. E. Cisneros G.; M. Velázquez; J. A. Zenteno H.; A. Gil de Paz; J. Gallego; E. Carrasco; F. C. Sánchez-Moreno; J. Iglesias-Páramo

doi:10.1117/12.2231797

9 August 2016 Integration and characterization of the cryogenic system of MEGARA

D. Ferrusca R., M. E. Cisneros G., M. Velázquez , J. A. Zenteno H., A. Gil de Paz, J. Gallego, E. Carrasco, F. C. Sánchez-Moreno, J. Iglesias-Páramo

Author Affiliations +

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 99087Y (2016) https://doi.org/10.1117/12.2231797
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is an optical Integral-Field Unit and Multi-Object Spectrograph designed for the GTC (Gran Telescopio de Canarias) 10.4m telescope in La Palma, it is expected that the spectrograph will be delivered to GTC towards the end of 2016. MEGARA includes an open cycle cryostat which harbors the scientific CCD of the instrument at an operating temperature of 153 K, this cryogenic system has been designed and integrated by the “Astronomical Instrumentation Lab for Millimeter Wavelengths” at the Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) in Mexico. Early this year the cryostat has finished its fabrication and now it is on AIV phases, in this paper we report the cryostat CCD-head and dewar back integration, vacuum and cryogenic test results are also reported. The final integration of the cryostat with the other components of the instrument is taking place at LICA lab at the Universidad Complutense de Madrid.

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D. Ferrusca R., M. E. Cisneros G., M. Velázquez , J. A. Zenteno H., A. Gil de Paz, J. Gallego, E. Carrasco, F. C. Sánchez-Moreno, and J. Iglesias-Páramo "Integration and characterization of the cryogenic system of MEGARA", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99087Y (9 August 2016); https://doi.org/10.1117/12.2231797

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KEYWORDS

Charge-coupled devices

Sensors

Cryogenics

Copper

Head

Spectrographs

Temperature sensors

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