Share Email Print

Proceedings Paper • Open Access

ATHENA Telescope: alignment and integration of SPO mirror modules

Paper Abstract

ATHENA (Advanced Telescope for High-ENergy Astrophysics) is the next high-energy astrophysical mission of the European Space Agency currently planned to be launched in the early 2030s, as part of its Cosmic Vision program, on the scientific topic of “Hot and Energetic Universe”. The optics technology is based on the Silicon Pore Optics (SPO). About 678 SPO mirror modules will have to be integrated and co-aligned onto the optical bench of the Mirror Assembly Module (MAM) of ATHENA. This activity will have to be completed in about two years. Media Lario leads an industrial and scientific team that has developed the process to align and integrate the SPO Mirror module with an accuracy better than 1 arcsec. The process is based on position of the centroid of the point spread function produced by each mirror module when illuminated by a collimated planewave at 218 nm taken at 12 m focal length. Experimental tests, using two SPO mirror modules, and correlation with X-ray measurement at the PANTER test facility in Münich have demonstrated that this process meets the accuracy requirement. It was also demonstrated, that a mirror module can be removed again from the MAM, and re-installed, without compromising the adjacent mirror modules. This technique allows arbitrary integration sequence and integration of two Mirror Modules per day. Moreover, it enables monitoring the telescope point spread function during the whole integration phase.

Paper Details

Date Published: 12 July 2019
PDF: 12 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111801N (12 July 2019); doi: 10.1117/12.2535978
Show Author Affiliations
G. Valsecchi, Media Lario S.r.l. (Italy)
F. Marioni, Media Lario S.r.l. (Italy)
G. Bianucci, Media Lario S.r.l. (Italy)
F. E. Zocchi, Media Lario S.r.l. (Italy)
D. Gallieni, A.D.S. International S.r.l. (Italy)
G. Parodi, BCV Progetti S.r.l. (Italy)
M. Ottolini, BCV Progetti S.r.l. (Italy)
M. Collon, Cosine Research B.V. (Netherlands)
G. Pareschi, INAF – Osservatorio Astronomico di Padova (Italy)
D. Spiga, INAF – Osservatorio Astronomico di Padova (United States)
SLAC National Accelerator Lab. (United States)
M. Bavdaz, European Space Agency (Netherlands)
E. Wille, European Space Agency (Netherlands)
V. Burwitz, MPI für extraterrestrische Physik (Germany)
G. Hartner, MPI für extraterrestrische Physik (Germany)
C. Pelliciari, MPI für extraterrestrische Physik (Germany)

Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?