MOSAIC@ELT: towards final design and AIT development of an athermal camera prototype for the NIR-spectrograph

Tony Pamplona; Zalpha Challita; Johan Floriot; Laurent Martin; Franck Ducret; Kacem El Hadi; Gerardo Veredas; Ana Perez; Marisa L. García-Vargas; Éric Prieto; Jesús Gallego; Mathieu Puech; Roser Pello

doi:10.1117/12.3013306

18 July 2024 MOSAIC@ELT: towards final design and AIT development of an athermal camera prototype for the NIR-spectrograph

Tony Pamplona, Zalpha Challita, Johan Floriot, Laurent Martin, Franck Ducret, Kacem El Hadi, Gerardo Veredas, Ana Perez, Marisa L. García-Vargas, Éric Prieto, Jesús Gallego, Mathieu Puech, Roser Pello

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130965Q (2024) https://doi.org/10.1117/12.3013306
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

MOSAIC is the multi-object spectrograph (MOS) for the ESO 39m European Extremely Large Telescope (ELT) approved to enter phase B beginning 2023. MOSAIC combines visible and near-infrared channels, from resolved stars up to the most distant galaxies, with multi-object and multi-integral field spectroscopy capabilities. The NIRspectrograph (130K-90K) is one sub-system of the NIR-channel, led by the Universidad Complutense de Madrid (UCM, Spain). It includes four camera modules delivered by the Laboratoire d’Astrophysique de Marseille (LAM, France) and equipped with Teledyne H4RG science detectors (4kx4k, 15 μm pixels). The four modules distribute two identical cryogenic benches ensuring, on each, the spectral coverage of the two observing bands J (0.95 – 1.34 μm) and H (1.43 – 1.80 μm in LR mode and 1.52 – 1.63 μm in HR mode). This paper presents the design of a cryogenic NIR camera prototype based on an athermal concept and details the ongoing AIT development for verification in the 0.95 – 1.34 μm domain in relevant environment (ESO TRL5).

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Tony Pamplona, Zalpha Challita, Johan Floriot, Laurent Martin, Franck Ducret, Kacem El Hadi, Gerardo Veredas, Ana Perez, Marisa L. García-Vargas, Éric Prieto, Jesús Gallego, Mathieu Puech, and Roser Pello "MOSAIC@ELT: towards final design and AIT development of an athermal camera prototype for the NIR-spectrograph", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130965Q (18 July 2024); https://doi.org/10.1117/12.3013306

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