METIS cryostat and vacuum control

Muhammad Salman; Gert Raskin; Werner Laun; Gerd Jakob; Dan Popovic; Mario Kiekebusch; Emilie Bouzerand; Wannes Verstraeten; Wim Pessemier; Wim De Meester; Kwinten Missiaen; Bart Vandenbussche; Maddalena Reggiani; Dirk Lesman; Hans Van Winckel

doi:10.1117/12.3020104

12 September 2024 METIS cryostat and vacuum control

Muhammad Salman, Gert Raskin, Werner Laun, Gerd Jakob, Dan Popovic, Mario Kiekebusch, Emilie Bouzerand, Wannes Verstraeten, Wim Pessemier, Wim De Meester, Kwinten Missiaen, Bart Vandenbussche, Maddalena Reggiani, Dirk Lesman, Hans Van Winckel

Author Affiliations +

Proceedings Volume 13101, Software and Cyberinfrastructure for Astronomy VIII; 1310140 (2024) https://doi.org/10.1117/12.3020104
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Efficient temperature control is crucial for the optimal performance of the Mid-infrared ELT Imager and Spectrograph (METIS). To minimize instrumental thermal background radiation and ensure optimal performance, the instrument’s components, including the infrared detector arrays, must operate at extremely low temperatures, ranging from 35 K to 100 K. The cryostat control system plays a crucial role in achieving and maintaining the required vacuum conditions as well as thermal stability. The key challenge lies in designing and implementing a control system that can manage the cryostat environment in an efficient, reliable and safe way. The METIS cryo-control system is implemented on systems based on a BECKHOFF Programmable Logic Controller (PLC) and the EtherCAT fieldbus. It utilizes the ESO ELT Cryo-toolkit, which provides building blocks of components that support individual hardware components, such as sensors, valves, and pumps. While the toolkit does not provide a complete cryo-control system, it serves as a valuable foundation for constructing a functional and safe control system for METIS cryostat.

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

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Muhammad Salman, Gert Raskin, Werner Laun, Gerd Jakob, Dan Popovic, Mario Kiekebusch, Emilie Bouzerand, Wannes Verstraeten, Wim Pessemier, Wim De Meester, Kwinten Missiaen, Bart Vandenbussche, Maddalena Reggiani, Dirk Lesman, and Hans Van Winckel "METIS cryostat and vacuum control", Proc. SPIE 13101, Software and Cyberinfrastructure for Astronomy VIII, 1310140 (12 September 2024); https://doi.org/10.1117/12.3020104

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