Facility for alignment, assembly, and integration of the SPO mirror modules onto the ATHENA telescope

G. Valsecchi; G. Bianucci; F. Marioni; D. Vernani; F. E. Zocchi; T. Korhonen; M. Pasanen; G. Pareschi; I. Ferreira; M. Bavdaz; E. Wille; D. Doyle

doi:10.1117/12.2593721

23 August 2021 Facility for alignment, assembly, and integration of the SPO mirror modules onto the ATHENA telescope

G. Valsecchi, G. Bianucci, F. Marioni, D. Vernani, F. E. Zocchi, T. Korhonen, M. Pasanen, G. Pareschi, I. Ferreira, M. Bavdaz, E. Wille, D. Doyle

Author Affiliations +

Proceedings Volume 11822, Optics for EUV, X-Ray, and Gamma-Ray Astronomy X; 118220J (2021) https://doi.org/10.1117/12.2593721
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Several hundreds of Silicon Pore Optics (SPO) mirror modules will be integrated and co-aligned onto the ATHENA (Advanced Telescope for High-ENergy Astrophysics) Mirror Assembly Module (MAM). The selected integration process, developed by Media Lario, exploits a full size optical bench to capture the focal plane image of each mirror module when illuminated by an UV plane wavefront at 218 nm. Each mirror module, handled by a manipulator, focuses the collimated beam onto a CCD camera placed at the 12 m focal position of the ATHENA telescope. The image is processed in real time to calculate the centroid position and overlap it to the centroid of the already integrated Mirror modules. Media Lario has designed the ATHENA Assembly Integration and Testing facility to realize the integration process for the flight telescope and has started its construction. The facility consists of a vertical optical bench installed inside a tower with controlled cleanroom conditions. The MAM axis is aligned along gravity and supported on actuators to compensate for gravity deformations. A robot device above the MAM is used for aligning the SPO Mirror modules. The 2.6 m paraboloid mirror that collects the light emitted by a UV source is in final polishing. The alignment system, the cell support and the metrology system for the UV collimator have been qualified and accepted for installation. Details about the optical bench and the status of the facility construction will be presented.

Conference Presentation

Citation Download Citation

G. Valsecchi, G. Bianucci, F. Marioni, D. Vernani, F. E. Zocchi, T. Korhonen, M. Pasanen, G. Pareschi, I. Ferreira, M. Bavdaz, E. Wille, and D. Doyle "Facility for alignment, assembly, and integration of the SPO mirror modules onto the ATHENA telescope", Proc. SPIE 11822, Optics for EUV, X-Ray, and Gamma-Ray Astronomy X, 118220J (23 August 2021); https://doi.org/10.1117/12.2593721

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