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Final correction by Ion Beam Figuring of thin shells for X-ray telescopes
Author(s): M. Ghigo; S. Basso; M. Civitani; R. Gilli; G. Pareschi; B. Salmaso; G. Vecchi; W. W. Zhang
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Paper Abstract

Future space X-ray mission concepts like STAR-X, AXIS and Lynx foresee optics with both high angular resolutions (HEW ~ 0.5 to 5 arcsec) and large collecting areas (~0.2-2.0 m2). These optics are very challenging to be produced and their manufacturing is under study. The Ion Beam Figuring (IBF) is one of the few techniques that is capable of correcting the residual manufacturing errors of the mirror shells and obtain the desired final optical figure. INAF-OABrera has two IBF facilities and is investigating the use of IBF on thin foils made by different materials, namely Silicon and Fused Silica. In this paper we describe the results obtained in a preliminary study on Silicon shells.

Paper Details

Date Published: 10 July 2018
PDF: 8 pages
Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107063I (10 July 2018); doi: 10.1117/12.2313939
Show Author Affiliations
M. Ghigo, INAF - Osservatorio Astronomico di Brera (Italy)
S. Basso, INAF - Osservatorio Astronomico di Brera (Italy)
M. Civitani, INAF - Osservatorio Astronomico di Brera (Italy)
R. Gilli, l’Osservatorio di Astrofisica e Scienza dello Spazio di Bologna (Italy)
G. Pareschi, INAF - Osservatorio Astronomico di Brera (Italy)
B. Salmaso, INAF - Osservatorio Astronomico di Brera (Italy)
G. Vecchi, INAF - Osservatorio Astronomico di Brera (Italy)
W. W. Zhang, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 10706:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Ramón Navarro; Roland Geyl, Editor(s)

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