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Proceedings Paper

Arc-second alignment and bonding of International X-Ray Observatory mirror segments
Author(s): Tyler C. Evans; Kai-Wing Chan; Ryan McClelland; Timo Saha
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Paper Abstract

The optics for the International X-Ray Observatory (IXO) require alignment and integration of about fourteen thousand thin mirror segments to achieve the mission goal of 3.0 square meters of effective area at 1.25 keV with an angular resolution of five arc-seconds. These mirror segments are 0.4 mm thick, and 200 to 400 mm in size, which makes it hard not to impart distortion at the sub-arc-second level. This paper outlines the precise alignment, verification testing, and permanent bonding techniques developed at NASA's Goddard Space Flight Center (GSFC). These techniques are used to overcome the challenge of aligning thin mirror segments and bonding them with arc-second alignment and minimal figure distortion. Recent advances in technology development in the area of permanent bonding have produced significant results. This paper will highlight the recent advances in alignment, testing, and permanent bonding techniques as well as the results they have produced.

Paper Details

Date Published: 29 July 2010
PDF: 11 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77323Z (29 July 2010); doi: 10.1117/12.856620
Show Author Affiliations
Tyler C. Evans, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Kai-Wing Chan, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland, Baltimore County (United States)
Ryan McClelland, SGT, Inc. (United States)
Timo Saha, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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