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Opto-Mechanics of the Constellation-X SXT Mirrors: Challenges in Mounting and Assembling the Mirror SegmentsThe 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 less than 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.
Document ID
20080039314
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
External Source(s)
Authors
Chan, Kai-Wing
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Zhang, WIlliam W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Saha, Timo
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lehan, John P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mazzarella, James
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lozipone, Lawrence
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hong, Melinda
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Byron, Glenn
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
June 23, 2008
Subject Category
Optics
Meeting Information
Meeting: SPIE Meeting
Location: Marseille
Country: France
Start Date: June 23, 2008
End Date: June 28, 2008
Sponsors: International Society for Optical Engineering
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Other

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