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Proceedings Paper

Selection of I-220-H beryllium for NIRCam optical bench
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Paper Abstract

The Near Infrared Camera (NIRCam) for NASA's James Webb Space Telescope (JWST) is one of the four science instruments to be installed into the Integrated Science Instrument Module (ISIM) on JWST. I-220H beryllium was chosen as the optical bench material for NIRCam based on its high specific stiffness, relatively high thermal conductivity, low CTE at cryogenic temperatures, and overall thermal stability at cryogenic temperatures. Beryllium has cryogenic heritage, but development of a structural bonded joint that could survive cryogenic temperatures was required. This paper will describe the trade studies performed in which bonded, I-220H beryllium was selected.

Paper Details

Date Published: 18 August 2005
PDF: 12 pages
Proc. SPIE 5868, Optical Materials and Structures Technologies II, 58680X (18 August 2005); doi: 10.1117/12.614571
Show Author Affiliations
Derek J. Edinger, Lockheed Martin Advanced Technology Ctr. (United States)
Alison A. Nordt, Lockheed Martin Advanced Technology Ctr. (United States)


Published in SPIE Proceedings Vol. 5868:
Optical Materials and Structures Technologies II
William A. Goodman, Editor(s)

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