The MICADO first light imager for the ELT: overview of the near infrared mosaic detector subsystem

Naidu Bezawada; Marcus Haug; Barbara Klein; Martin Brinkmann; Eric Müller; Derek Ives; Elizabeth George; Benoit Serra; Domingo Alvarez; Leander Mehrgan; Matthias Richerzhagen; Mathias Seidel; Jörg Stegmeier; Mirko Todorovic; Federico Biondi; Ric Davies; Andreas Emslander; Aysun Sönmez; Kateryna Kravchenko; Sebastian Rabien; Julian Ziegleder; Tilo Jilg; Luis Neumeier

doi:10.1117/12.3020079

27 August 2024 The MICADO first light imager for the ELT: overview of the near infrared mosaic detector subsystem

Naidu Bezawada, Marcus Haug, Barbara Klein, Martin Brinkmann, Eric Müller, Derek Ives, Elizabeth George, Benoit Serra, Domingo Alvarez, Leander Mehrgan, Matthias Richerzhagen, Mathias Seidel, Jörg Stegmeier, Mirko Todorovic, Federico Biondi, Ric Davies, Andreas Emslander, Aysun Sönmez, Kateryna Kravchenko, Sebastian Rabien, Julian Ziegleder, Tilo Jilg, Luis Neumeier

Author Affiliations +

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 131030D (2024) https://doi.org/10.1117/12.3020079
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

MICADO, a Multi-AO Imaging Camera for Deep Observations, is a first light imager for the European Large Telescope (ELT). It is being designed and built by a consortium of partners from 6 different countries across Europe and led by the Max Planck Institute for Extraterrestrial Physics (MPE) in Garching. The European Southern Observatory (ESO) is responsible for delivering the near infrared detector subsystem to the instrument. This subsystem includes nine Hawaii-4RG-15 (H4RG-15) near infrared detectors (2.5μm cut-off) mounted in a compact 3x3 mosaic at the heart of the instrument. They will operate at a nominal temperature of 82K using an array of cryogenic preamplifiers located at the back of the focal plane plate, close to the detectors. This paper presents an overview of this detector subsystem, including the measured performance of two of the H4RG-15 science detectors already characterised in a custom-built test facility at ESO. Special readout modes have been developed for the instrument and for AO corrections to one of the ELT mirrors and these are described. The design of the focal plane, its thermal analysis and the focal plane flatness measurement system being setup at ESO is also presented. This paper also provides a brief description of the new detector controllers (NGCII) being developed at ESO for all the ELT and future VLT (Very Large Telescope) science detector systems and presents the specific controller configuration which must be implemented for the MICADO detectors.

Conference Presentation

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

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Naidu Bezawada, Marcus Haug, Barbara Klein, Martin Brinkmann, Eric Müller, Derek Ives, Elizabeth George, Benoit Serra, Domingo Alvarez, Leander Mehrgan, Matthias Richerzhagen, Mathias Seidel, Jörg Stegmeier, Mirko Todorovic, Federico Biondi, Ric Davies, Andreas Emslander, Aysun Sönmez, Kateryna Kravchenko, Sebastian Rabien, Julian Ziegleder, Tilo Jilg, and Luis Neumeier "The MICADO first light imager for the ELT: overview of the near infrared mosaic detector subsystem", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 131030D (27 August 2024); https://doi.org/10.1117/12.3020079

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