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[2-m Diameter NGST Mirror System Demonstrator]The University of Arizona is manufacturing a 2-m diameter NGST Mirror System Demonstrator. This mirror uses a 2-mm thick glass facesheet as the optical surface. The shape is controlled and adjusted using 166 actuators that are mounted into a composite carbon fiber structure. The overall mass density for the mirror system is 13 kg/sq m, including glass, attachments, actuators, cabling, and support structure. The mirror operates at ambient temperatures and at cryogenic temperatures using custom built actuators and couplings. The status of the mirror fabrication will be presented.
Document ID
20010086593
Acquisition Source
Marshall Space Flight Center
Document Type
Abstract
Authors
Burge, Jim (Arizona Univ. Tucson, AZ United States)
Date Acquired
August 20, 2013
Publication Date
January 19, 2001
Subject Category
Optics
Meeting Information
Meeting: MSFC Technology Days
Location: Huntsville, AL
Country: United States
Start Date: May 9, 2001
End Date: May 10, 2001
Funding Number(s)
CONTRACT_GRANT: NAS8-97309
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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