Presentation + Paper
26 August 2024 The MICADO first light imager for the ELT: the detector positioning system of MICADO
Author Affiliations +
Abstract
The Detector Positioning System (DPS) is a cryogenic mechanism operating at 82 K installed in the cryostat of the Multi- AO Imaging Camera for Deep Observations (MICADO) at the Extremely Large Telescope (ELT).
The DPS mechanism will be exclusively utilized during the alignment and test phase. Upon completing the test phase, it will be mechanically locked at the best pre-determined focus so that it cannot be moved during the observation period.
The DPS has been conceptualized as a fixed and reproducible interface to the Main Bench Structure in the MICADO cryostat and as an adjustable unit containing the Detector Array mounted on the DPS frame installed on a linear guide on the base plate. A cryogenic linear actuator further acts as the linear guide during the alignment phase to bring the focal plane array into focus.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Aysun Sönmez, Florian Lang, Sebastian Rabien, Kateryna Kravchenko, Andreas Emslander, Federico Biondi, Mathias Honsberg, Matthias Deysenroth, Luis Neumeier, Lenard Spallek, Lothar Barl, Naidu Bezawada, Veronika Wimmer, Marcus Haug, Nancy Ageorges, and Dirk Kampf "The MICADO first light imager for the ELT: the detector positioning system of MICADO", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 1310036 (26 August 2024); https://doi.org/10.1117/12.3018338
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KEYWORDS
Sensors

Interfaces

Cryostats

Detector arrays

Actuators

Cryogenics

Computer aided design

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