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Proceedings Paper

Thermal shaping of thin glass substrates for segmented grazing incidence active optics
Author(s): L. Proserpio; Marta Civitani; Mauro Ghigo; Giovanni Pareschi
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Paper Abstract

In the context of the AHEAD project of the FP7 European call, a group of UK and Italian Institutions is proposing a research on X-ray optics that can provide large collecting areas (a few decades of m2) combined with a high angular resolution (0.1-1 arcsec). This requires the development of Active X-ray Optics in which the reflecting surfaces can be adjusted-manipulated in order to achieve and maintain the correct shape. In the context of an international collaboration with UK institutes, the Astronomical Observatory of Brera (INAF-OAB) is in charge of the production of thin (0.4 mm or less) glass mirror segments for the demonstration of a 2-reflection active X-ray system including piezoelectric actuators to improve the angular resolution, For the shell segments production the hot slumping approach of glass foils, already under investigation for the realization of IXO mirrors, is adopted. In this paper, a detailed description of the method is presented, reporting also on the metrological data of produced samples.

Paper Details

Date Published: 24 September 2010
PDF: 11 pages
Proc. SPIE 7803, Adaptive X-Ray Optics, 78030K (24 September 2010); doi: 10.1117/12.863880
Show Author Affiliations
L. Proserpio, INAF-Osservatorio Astronomico di Brera (Italy)
Univ. degli Studi dell'Insubria (Italy)
Marta Civitani, INAF-Osservatorio Astronomico di Brera (Italy)
Univ. degli Studi dell'Insubria (Italy)
Mauro Ghigo, INAF-Osservatorio Astronomico di Brera (Italy)
Giovanni Pareschi, INAF-Osservatorio Astronomico di Brera (Italy)

Published in SPIE Proceedings Vol. 7803:
Adaptive X-Ray Optics
Ali M. Khounsary; Stephen L. O'Dell; Sergio R. Restaino, Editor(s)

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