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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/27403
Title: Ion beam figuring of thin glass plates: achievements and perspectives
Authors: CIVITANI, Marta Maria 
GHIGO, Mauro 
Hołyszko, J.
VECCHI, Gabriele 
BASSO, Stefano 
Issue Date: 2016
Volume: Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Editors: den Herder, Jan-Willem A.; Takahashi, Tadayuki; Bautz, Marshall
Series: PROCEEDINGS OF SPIE 
Number: 9905
First Page: 990578
Abstract: Different hot slumping techniques have been developed in the last decade to shape thin glass plates in Wolter-I configuration for high angular resolution x-ray telescopes. The required high quality surface characteristic, both in terms of figure error and of micro-roughness, is challenging and the best results achieved so far are compatible with an HEW of few arcseconds. In order to push forward the technology enabling x-ray optics with final HEW below 1 arcsec, we investigate the ion beam figuring as a deterministic technology which can correct the low frequency components of the residual error directly on thin glasses. In this paper we present the tests performed so far, giving a first assessment on the deterministic process definition. In particular, we report on the results achieved on flat samples of D263 and Eagle glass, focusing on the removal function characterization, the micro-roughness evolution and the plate shape variation.
Conference Name: Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Conference Place: Edinburgh, United Kingdom
Conference Date: 26 June - 1 July 2016
URI: http://hdl.handle.net/20.500.12386/27403
URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9905/1/Ion-beam-figuring-of-thin-glass-plates--achievements-and/10.1117/12.2233821.full
ISSN: 0277-786X
ISBN: 9781510601895
9781510619135
DOI: 10.1117/12.2233821
Bibcode ADS: 2016SPIE.9905E..78C
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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