Share Email Print
cover

Proceedings Paper

Opto-mechanics of the Constellation-X SXT mirrors: challenges in mounting and assembling the mirror segments
Author(s): Kai-Wing Chan; William W. Zhang; Timo Saha; John P. Lehan; James Mazzarella; Lawrence Lozipone; Melinda Hong; Glenn Byron
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Constellation-X Spectroscopy X-Ray Telescopes consists of segmented glass mirrors with an axial length of 200 mm, a width of up to 400 mm, and a thickness of 0.4 mm. To meet the requirement of < 15 arc-second half-power diameter with the small thickness and relatively large size is a tremendous challenge in opto-mechanics. How shall we limit distortion of the mirrors due to gravity in ground tests, that arises from thermal stress, and that occurs in the process of mounting, affixing and assembling of these mirrors? In this paper, we will describe our current opto-mechanical approach to these problems. We will discuss, in particular, the approach and experiment where the mirrors are mounted vertically by first suspending it at two points.

Paper Details

Date Published: 15 July 2008
PDF: 9 pages
Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 701114 (15 July 2008); doi: 10.1117/12.789019
Show Author Affiliations
Kai-Wing Chan, CRESST, Univ. Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
William W. Zhang, NASA Goddard Space Flight Ctr. (United States)
Timo Saha, NASA Goddard Space Flight Ctr. (United States)
John P. Lehan, CRESST, Univ. Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
James Mazzarella, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Lawrence Lozipone, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Melinda Hong, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Glenn Byron, SGT, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 7011:
Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray
Martin J. L. Turner; Kathryn A. Flanagan, Editor(s)

© SPIE. Terms of Use
Back to Top