The MICADO first light imager for the ELT: overview of the SCAO module at its final design - Groupe Imagerie et Information Access content directly
Proceedings Year : 2022

The MICADO first light imager for the ELT: overview of the SCAO module at its final design

Sylvain Guieu
  • Function : Author
Sebastian Rabien
  • Function : Author
Veronika Hörmann
  • Function : Author
Eckhard Sturm
  • Function : Author
Richard Davies
  • Function : Author

Abstract

MICADO is the ELT first light instrument, an imager working at the diffraction limit of the telescope thanks to two adaptive optics (AO) modes: a single conjugate one (SCAO), available at the instrument first light and developed by the MICADO consortium, and a multi conjugate one (MCAO), developed by the MORFEO consortium. This contribution presents an overview of the SCAO module while MICADO and its SCAO are in the last phase of their final design review. We focus on the SCAO architecture choices and present the final design of the SCAO subsystems: the Green Doughnut structure, the SCAO wavefront sensor, the SCAO calibration unit, the SCAO ICS (i.e. AOCS) and the SCAO RTC. We also present the SCAO global performance in terms of AO correction, obtained from an error budget that includes contributors estimated from AO end-to-end simulations as well as instrumental contributors. Finally, we present the current SCAO subsystems prototyping and the main milestones of the SCAO AIT plan.
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Dates and versions

obspm-04009832 , version 1 (01-12-2023)

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Yann Clénet, Tristan Buey, Eric Gendron, Sonia Karkar, Fabrice Vidal, et al.. The MICADO first light imager for the ELT: overview of the SCAO module at its final design. SPIE Astronomical Telescopes + Instrumentation 2022, Adaptive Optics Systems VIII, SPIE proceedings, 12185, pp.121854S, 2022, ⟨10.1117/12.2629856⟩. ⟨obspm-04009832⟩
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