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Proceedings Paper

JWST mirror production status
Author(s): Benjamin Gallagher; Mark Bergeland; Bob Brown; David Chaney; Tracy Copp; Jake Lewis; Brad Shogrin; Koby Smith; Jeff Sokol; James Hadaway; Holger Glatzel; Patrick Johnson; Allen Lee; Dan Patriarca; Ian Stevenson; Jason Cluney; Tom Parsonage; Jeff Calvert; Brady Rodgers; Andy McKay; Scott Texter; Lester Cohen; Lee Feinberg
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Paper Abstract

The James Webb Space Telescope (JWST) is an on axis three mirror anastigmat telescope with a primary mirror, a secondary mirror, and a tertiary mirror. The JWST mirrors are constructed from lightweight beryllium substrates and the primary mirror consists of 18 hexagonal mirror segments each approximately 1.5 meters point to point. Ball Aerospace and Technologies Corporation leads the mirror manufacturing team and the team utilizes facilities at six locations across the United States. The fabrication process for each individual mirror assembly takes approximately six years due to limitations dealing with the number of segments and manufacturing & test facilities. The primary mirror Engineering Development Unit (EDU) recently completed the manufacturing process with the final cryogenic performance test of the mirror segment assembly. The 18 flight primary mirrors segments, the secondary mirror, and the tertiary mirror are all advanced in the mirror production process with many segments through the final polishing process, coating process, final assembly, vibration testing, and final acceptance testing. Presented here is a status of the progress through the manufacturing process for all of the flight mirrors.

Paper Details

Date Published: 14 September 2011
PDF: 12 pages
Proc. SPIE 8146, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts V, 814607 (14 September 2011); doi: 10.1117/12.892326
Show Author Affiliations
Benjamin Gallagher, Ball Aerospace & Technologies Corp. (United States)
Mark Bergeland, Ball Aerospace & Technologies Corp. (United States)
Bob Brown, Ball Aerospace & Technologies Corp. (United States)
David Chaney, Ball Aerospace & Technologies Corp. (United States)
Tracy Copp, Ball Aerospace & Technologies Corp. (United States)
Jake Lewis, Ball Aerospace & Technologies Corp. (United States)
Brad Shogrin, Ball Aerospace & Technologies Corp. (United States)
Koby Smith, Ball Aerospace & Technologies Corp. (United States)
Jeff Sokol, Ball Aerospace & Technologies Corp. (United States)
James Hadaway, Univ. of Alabama in Huntsville (United States)
Holger Glatzel, L-3 Communications IOS Tinsley (United States)
Patrick Johnson, L-3 Communications IOS Tinsley (United States)
Allen Lee, L-3 Communications IOS Tinsley (United States)
Dan Patriarca, Quantum Coating Inc. (United States)
Ian Stevenson, Quantum Coating Inc. (United States)
Jason Cluney, Matereon Brush Beryllium and Composites (United States)
Tom Parsonage, Matereon Brush Beryllium and Composites (United States)
Jeff Calvert, AXSYS Technologies (United States)
Brady Rodgers, AXSYS Technologies (United States)
Andy McKay, Northrop Grumman Aerospace Systems (United States)
Scott Texter, Northrop Grumman Aerospace Systems (United States)
Lester Cohen, SAO (United States)
Lee Feinberg, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 8146:
UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts V
Howard A. MacEwen; James B. Breckinridge, Editor(s)

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