The MICADO first light imager for the ELT: an overview of the RAM analysis and consequent design and maintenance strategy

Federico Biondi; Yann Clénet; Patrick Caillier; Veronika Wimmer; Tristan Buey; Luis Neumeier; Florian Lang; Sebastian Rabien; Eckhard Sturm; Richard Davies

doi:10.1117/12.3020567

23 August 2024 The MICADO first light imager for the ELT: an overview of the RAM analysis and consequent design and maintenance strategy

Federico Biondi, Yann Clénet, Patrick Caillier, Veronika Wimmer, Tristan Buey, Luis Neumeier, Florian Lang, Sebastian Rabien, Eckhard Sturm, Richard Davies

Author Affiliations +

Proceedings Volume 13099, Modeling, Systems Engineering, and Project Management for Astronomy XI; 130990T (2024) https://doi.org/10.1117/12.3020567
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

MICADO is a cryogenic near infrared Multi-AO Imaging Camera and Spectrometer developed for the first light operations at the ELT. It will operate in a “Standalone” configuration with a Single Conjugate Adaptive Optics module for a nominal period of two years. After this time, the system will be re-arranged in the “MICADO-MORFEO” configuration, being able to switch between the SCAO and a Multi Conjugate Adaptive Optics module in the later phase of the project. The lifetime requirement of minimum ten years, together with other demanding requisites about its availability and reliability triggered a meticulous FMECA analysis mainly focused on developing robust maintenance strategies. In this paper, we outline the assumptions and the boundaries of the MICADO RAM analysis, a collaborative effort involving the Max Planck Institute for the Extraterrestrial Physics, the Laboratoir d’Études Spatiales et d’Instrumentation en Astrophysique and the European Southern Observatory, starting from the input provided by all MICADO partners. We describe how RAM aspects drove some design choices as well as the selection and use of components. We report the preventive and predictive maintenance strategies, which we considered to minimize the risk of instrument downtime in the high cost operational context of the ELT.

Conference Presentation

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

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Federico Biondi, Yann Clénet, Patrick Caillier, Veronika Wimmer, Tristan Buey, Luis Neumeier, Florian Lang, Sebastian Rabien, Eckhard Sturm, and Richard Davies "The MICADO first light imager for the ELT: an overview of the RAM analysis and consequent design and maintenance strategy", Proc. SPIE 13099, Modeling, Systems Engineering, and Project Management for Astronomy XI, 130990T (23 August 2024); https://doi.org/10.1117/12.3020567

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