NDLI: Jwst lightweight mirror trl-6 results

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Jwst lightweight mirror trl-6 results

Content Provider	NASA Technical Reports Server (NTRS)
Author	Stahl, H. Philip
Copyright Year	2007
Description	Mirror technology for a Primary Mirror Segment Assembly (PMSA) is a system of components: reflective coating; polished optical surface; mirror substrate; actuators, mechanisms and flexures; and reaction structure. The functional purpose of a PMSA is to survive launch, deploy and align itself to form a 25 square meter collecting area 6.5 meter diameter primary mirror with a 131 nm rms wavefront error at temperatures less than 50K and provide stable optical performance for the anticipated thermal environment. At the inception of JWST in 1996, such a capability was at a Technology Readiness Level (TRL) of 3. A highly successful technology development program was initiated including the Sub-scale Beryllium Mirror Demonstrator (SBMD) and Advanced Mirror System Demonstrator (AMSD) projects. These projects along with flight program activities have matured mirror technology for JWST to TRL-6. A directly traceable prototype (and in some cases the flight hardware itself) has been built, tested and operated in a relevant environment.
File Size	1408984
Page Count	13
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20070018749
Archival Resource Key	ark:/13960/t72v7hn67
Language	English
Publisher Date	2007-01-01
Access Restriction	Open
Subject Keyword	Fabrication James Webb Space Telescope Thermal Environments Launch Vehicles Beryllium Technology Assessment Cryogenics Acoustics Coatings Mirrors Requirements Substrates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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