ANDES, the high resolution spectrograph for the ELT: RAM strategy during the preliminary design review

Enrico Giro; Alessio Zanutta; Paolo Di Marcantonio; Manuel Abreu; Matteo Aliverti; Andrea Balestra; Lorenzo Cabona; Bruno Chazelas; Igor Coretti; Wolfgang Gaessler; Philipp Huke; Domenico Giannone; Marco Landoni; Michael MacIntosh; Ernesto Oliva; Livia Origlia; Giorgio Pariani; Edoardo Maria Alberto Redaelli; Marco Riva; Chiara Selmi; Marco Xompero; Jennifer Zimara; Alessandro Marconi

doi:10.1117/12.3017021

23 August 2024 ANDES, the high resolution spectrograph for the ELT: RAM strategy during the preliminary design review

Enrico Giro, Alessio Zanutta, Paolo Di Marcantonio, Manuel Abreu, Matteo Aliverti, Andrea Balestra, Lorenzo Cabona, Bruno Chazelas, Igor Coretti, Wolfgang Gaessler, Philipp Huke, Domenico Giannone, Marco Landoni, Michael MacIntosh, Ernesto Oliva, Livia Origlia, Giorgio Pariani, Edoardo Maria Alberto Redaelli, Marco Riva, Chiara Selmi, Marco Xompero, Jennifer Zimara, Alessandro Marconi

Author Affiliations +

Proceedings Volume 13099, Modeling, Systems Engineering, and Project Management for Astronomy XI; 130991H (2024) https://doi.org/10.1117/12.3017021
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

RAM analysis is crucial for the success of any measurement campaign and must be implemented at the earliest design phase of building an astronomical instrument. ANDES (ArmazoNes high Dispersion Echelle Spectrograph) currently in phase B will be the high-resolution spectrograph for the ELT formerly known as ELT-HIRES. Its design in the extended version foresees four spectrographs fed by fibers and operating both in seeing and diffraction-limited (adaptive optics assisted) mode. Due to these properties strictly related to flexibility and modularity, a RAM approach focused on different scientific data requirements permits a high availability for the main data acquisition modes. To implement this process, the product tree, active elements, modularity, component duty cycles, and degraded modes were defined in the earlier phases. In this way, RAM requirements contribute to defining design. This process avoids missing the control of particular aspects like maintenance accessibility, cost of operations, and downtime due to maintenance. The paper presents the process and how it is implemented in the ANDES project, thereby suggesting a design solution for the instrument.

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Enrico Giro, Alessio Zanutta, Paolo Di Marcantonio, Manuel Abreu, Matteo Aliverti, Andrea Balestra, Lorenzo Cabona, Bruno Chazelas, Igor Coretti, Wolfgang Gaessler, Philipp Huke, Domenico Giannone, Marco Landoni, Michael MacIntosh, Ernesto Oliva, Livia Origlia, Giorgio Pariani, Edoardo Maria Alberto Redaelli, Marco Riva, Chiara Selmi, Marco Xompero, Jennifer Zimara, and Alessandro Marconi "ANDES, the high resolution spectrograph for the ELT: RAM strategy during the preliminary design review", Proc. SPIE 13099, Modeling, Systems Engineering, and Project Management for Astronomy XI, 130991H (23 August 2024); https://doi.org/10.1117/12.3017021

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