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Proceedings Paper

Preserving accurate figures in coating and bonding mirrors for lightweight x-ray telescopes
Author(s): Kai-Wing Chan; William W. Zhang; Marton V. Sharpe; James R. Mazzarella; Ryan S. McClelland; Michael P. Biskach; Timo T. Saha; Linette D. Kolos; Mao-Ling Hong
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Paper Abstract

Lightweight, high-resolution, high throughput optics for x-ray astronomy requires fabrication and integration of thin mirrors segments with arc-second precision. In this paper, we present results on our effort leading to the most recent two test modules achieving the intermediate goal of 10 arc-second resolution. We will address issues of coating and bonding thin glass mirrors with negligible distortion. Annealing of sputtered high-density metallic films was found to be sufficiently accurate. We will present result from tests of bonding mirrors onto experimental strongbacks, as well as the sensitivity on bonding procedure, bond parameters and environment.

Paper Details

Date Published: 24 July 2014
PDF: 13 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 914440 (24 July 2014); doi: 10.1117/12.2055874
Show Author Affiliations
Kai-Wing Chan, Univ. of Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
William W. Zhang, NASA Goddard Space Flight Ctr. (United States)
Marton V. Sharpe, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
James R. Mazzarella, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Ryan S. McClelland, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Michael P. Biskach, NASA Goddard Space Flight Ctr. (United States)
Timo T. Saha, NASA Goddard Space Flight Ctr. (United States)
Linette D. Kolos, NASA Goddard Space Flight Ctr. (United States)
Mao-Ling Hong, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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