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Proceedings Paper

An integration machine for the assembly of the x-ray optic units based on thin slumped glass foils for the IXO mission
Author(s): M. M. Civitani; S. Basso; M. Bavdaz; O. Citterio; P. Conconi; D. Gallieni; M. Ghigo; F. Martelli; G. Pareschi; G. Parodi; L. Proserpio; G. Sironi; D. Spiga; G. Tagliaferri; M. Tintori; E. Wille; A. Zambra
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Paper Abstract

The International X-ray Observatory (IXO) is a joint mission concept studied by the ESA, NASA, and JAXA space agencies. The main goal of the mission design is to achieve a large effective area (>2.5m2 at 1 keV) and a good angular resolution (5 arcsec HEW at 1 keV) at the same time. The Brera Astronomical Observatory - INAF (Italy), under the support of ESA, is developing a method for the realization of the X-Ray Optical Units, based on the use of slumped thin glass segments to form densely packed modules in a Wolter type I optical configuration. In order to reach the very challenging integration requirements, it has been developed an innovative assembly approach for aligning and mounting the IXO mirror segments. The method is based on the use of an integration mould for each foil. In particular the glass segment is forced to adhere to the integration mould in order to maintain the optimal figure without deformations until the integration of the foil in the stack is completed. In this way an active correction for major existing figure errors after slumping is also achieved. Moreover reinforcing ribs are used in order to connect the facets to each-other and to realize a robust monolithic stack of plates. In this paper we present the design, the development and the validation status of a special Integration Machine (IMA) that has been specifically developed to allow the integration of the Plate Pairs into prototypal X-Ray Optical Unit stacks.

Paper Details

Date Published: 12 October 2011
PDF: 11 pages
Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 81470R (12 October 2011); doi: 10.1117/12.895307
Show Author Affiliations
M. M. Civitani, INAF - Osservatorio Astronomico di Brera (Italy)
Univ. degli Studi dell'Insubria (Italy)
S. Basso, INAF - Osservatorio Astronomico di Brera (Italy)
M. Bavdaz, European Space Agency, ESTEC (Netherlands)
O. Citterio, INAF - Osservatorio Astronomico di Brera (Italy)
P. Conconi, INAF - Osservatorio Astronomico di Brera (Italy)
D. Gallieni, A.D.S. International S.r.l. (Italy)
M. Ghigo, INAF - Osservatorio Astronomico di Brera (Italy)
F. Martelli, BCV Progetti S.r.l. (Italy)
G. Pareschi, INAF - Osservatorio Astronomico di Brera (Italy)
G. Parodi, BCV Progetti S.r.l. (Italy)
L. Proserpio, INAF - Osservatorio Astronomico di Brera (Italy)
Univ. degli Studi dell'Insubria (Italy)
G. Sironi, INAF - Osservatorio Astronomico di Brera (Italy)
D. Spiga, INAF - Osservatorio Astronomico di Brera (Italy)
G. Tagliaferri, INAF - Osservatorio Astronomico di Brera (Italy)
M. Tintori, A.D.S. International S.r.l. (Italy)
E. Wille, Univ. degli Studi dell'Insubria (Italy)
A. Zambra, INAF - Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 8147:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy V
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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