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Proceedings Paper

Graphite/epoxy composite mirror for beam-steering applications
Author(s): John A. Sultana; Steven E. Forman
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Paper Abstract

A conceptual design and manufacturing program for a lightweight graphite/epoxy steering mirror with a 0.5-2.0-m aperture for use at 10.6 micron is presented. An analysis is performed for the optimization of the mirror natural frequency as a function of component material, structural geometry, and physical dimensions. A 65-m-diameter eggcrate sandwich-core mirror constructed of graphite/epoxy composite material clad on all exposed surfaces with aluminum foil or tin/indium solder is manufactured, and it is indicated that this design can be scaled to larger diameters. Results of a trade study suggest that this type of mirror can be hardened against nuclear X-ray effects given the appropriate choice of cladding materials.

Paper Details

Date Published: 1 October 1990
PDF: 11 pages
Proc. SPIE 1303, Advances in Optical Structure Systems, (1 October 1990); doi: 10.1117/12.21530
Show Author Affiliations
John A. Sultana, Lincoln Lab./MIT (United States)
Steven E. Forman, Lincoln Lab./MIT (United States)

Published in SPIE Proceedings Vol. 1303:
Advances in Optical Structure Systems
John A. Breakwell; Victor L. Genberg; Gary C. Krumweide, Editor(s)

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