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Development of Lightweight Mirror Technology for the NGST ProgramRecognizing the need to launch larger aperture telescopes to orbit with current launch capability, the NGST program began in 1997, an aggressive technology development effort in lightweight optics. This effort has developed technologies in silicon Carbide, Beryllium, silicon, glass and hybrid mirrors to name a few. The advancement of mirror technology to below the 15 kg/ni2 areal density is challenging enough without the added requirements for NGST that the mirror operate at approximately 35 Kelvin. This paper will discuss the various NGST technology developments including applications relative to bonding or joining mirror materials, subscale developments, the mirror system demonstrator program, the advance mirror demonstrator program and development of the mirror test program. Specific attention will be given to technical issues related to lightweight mirror development and processing. Other issues to be addressed are the development of the roadmap to the NGST flight mirror development and to assess the technology readiness for NGST.
Document ID
19990115942
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Jacobson, David N.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Subject Category
Optics
Meeting Information
Meeting: Optical Science, Engineering and Instrumentation
Location: Denver, CO
Country: United States
Start Date: July 18, 1999
End Date: July 23, 1999
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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