Moving toward a fast, deterministic and reliable process for high resolution thin monolithic shells

M. M. Civitani; G. Toso; M. Ghigo; G. Vecchi; S. Incorvaia; S. Basso; M. Fiorini; L. Lessio; G. Pareschi; D. Spiga; S. Schuler; M. Demmer; G. Parodi; V. Burwitz; T. Schmidt; T. Müller; G. D. Hartner; S. Rukdee; A. Langmeier

doi:10.1117/12.2677404

5 October 2023 Moving toward a fast, deterministic and reliable process for high resolution thin monolithic shells

M. M. Civitani, G. Toso, M. Ghigo, G. Vecchi, S. Incorvaia, S. Basso, M. Fiorini, L. Lessio, G. Pareschi, D. Spiga, S. Schuler, M. Demmer, G. Parodi, V. Burwitz, T. Schmidt, T. Müller, G. D. Hartner, S. Rukdee, A. Langmeier

Author Affiliations +

Proceedings Volume 12679, Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI; 1267906 (2023) https://doi.org/10.1117/12.2677404
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

The traditional solution foreseen for the realization of very large x-ray mirror modules (diameters above 1 m) is the partition of the optics in azimuth and radial modules (like Silicon Pore Optics in Athena). Even if this approach solves the initial problem of the procurement and the handling of very large substrates, it moves the difficulties in the second phase, when thousands of segments have to be assembled without degrading their optical performances. On the contrary, a simpler large mirror module design could correspond to less than a few hundred thin (2 mm to 4 mm for mirror shells between 0.4 m and 3 m diameter) monolithic shells. This configuration keeps both the advantage of the design simplicity and of the high-resolution capability, achievable through the direct polishing approach. Moreover, it guarantees an impressive gain in the polishing time. A technology development road map for this approach is funded in Italy by ASI and led by INAF-OAB. In this paper, we present the advancements obtained in the development of the different phases of the process and in the procurement of new substrates.

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(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

M. M. Civitani, G. Toso, M. Ghigo, G. Vecchi, S. Incorvaia, S. Basso, M. Fiorini, L. Lessio, G. Pareschi, D. Spiga, S. Schuler, M. Demmer, G. Parodi, V. Burwitz, T. Schmidt, T. Müller, G. D. Hartner, S. Rukdee, and A. Langmeier "Moving toward a fast, deterministic and reliable process for high resolution thin monolithic shells", Proc. SPIE 12679, Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI, 1267906 (5 October 2023); https://doi.org/10.1117/12.2677404

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