M1 Assembly for the EST: selection of the most promising baseline configuration for the preliminary design

Angel Mato; Nauzet Vega; Mahy Soler; Juan Cozar-Castellano; Jose M. Gonzalez-Cava; Miguel Núñez Cagigal; Jorge Sánchez-Capuchino; Mary Barreto; Albert Tomàs; Marc Crusells; Erik Escalera; Miguel Redondo; Joan Manel Casalta; Albert Nieto

doi:10.1117/12.2628568

29 August 2022 M1 Assembly for the EST: selection of the most promising baseline configuration for the preliminary design

Angel Mato, Nauzet Vega, Mahy Soler, Juan Cozar-Castellano, Jose M. Gonzalez-Cava, Miguel Núñez Cagigal, Jorge Sánchez-Capuchino, Mary Barreto, Albert Tomàs, Marc Crusells, Erik Escalera, Miguel Redondo, Joan Manel Casalta, Albert Nieto

Author Affiliations +

Proceedings Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V; 121880C (2022) https://doi.org/10.1117/12.2628568
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The European Solar Telescope (EST) is a 4-m class solar telescope that will be installed at the Observatorio del Roque de los Muchachos in La Palma (Spain). Two important factors make EST different from other similar size telescopes: high thermal load due to solar radiation and open dome configuration during observation. Therefore, the entire telescope will be exposed to direct and indirect solar radiation, which requires a very demanding thermal management in order to minimize local seeing. In addition, the complete telescope will be exposed to wind, which has an important impact both in image stability and image quality. The EST M1 Assembly (primary mirror and cell) will have to cope with these critical issues, apart from other aspects common to primary mirrors of similar size. In 2020, in the scope of the EST Preliminary Design Phase, the development of the M1 Assembly was granted to the company SENER-Aeroespacial. The first step, before starting the design, was to evaluate different technologies and configurations for the following critical aspects: mirror (lightweight or not), number and type of axial actuators, cooling system, and number of interfaces with the elevation tube. A comparative study was carried out in order to define the baseline configuration for the M1 Assembly. This baseline configuration was then fully developed up to preliminary design level. This paper addresses the comparative study performed for selecting the most promising baseline configuration for the EST M1 Assembly.

Conference Presentation

Citation Download Citation

Angel Mato, Nauzet Vega, Mahy Soler, Juan Cozar-Castellano, Jose M. Gonzalez-Cava, Miguel Núñez Cagigal, Jorge Sánchez-Capuchino, Mary Barreto, Albert Tomàs, Marc Crusells, Erik Escalera, Miguel Redondo, Joan Manel Casalta, and Albert Nieto "M1 Assembly for the EST: selection of the most promising baseline configuration for the preliminary design", Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121880C (29 August 2022); https://doi.org/10.1117/12.2628568

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available