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Proceedings Paper

Discussions on radiation and space environment exposure of replicated optical mirrors produced from carbon composites
Author(s): R. C. Romeo; R. N. Martin; K. Bollweg
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Paper Abstract

Radiation effects are well know to cause significant degradation in polymer materials. Low earth orbit (LEO) radiation exposures cause ionization potentials that can undermine mechanical properties of polymers. In particular, small scale degradations can undermine carbon / polymer composite mirrors used in imaging applications. High specularity surface finish is required for optical mirrors and that surface is vulnerable to radiation ionization degradation thereby undermining the optical performance of the mirror in that environment. Experiments involving radiation ionization and its effects on replicated carbon/polymer composite mirrors will be will be discussed; 6 replicated carbon/polymer composite mirrors on the Materials on the International Space Station Experiment, MISSE 7 and MISSE 8, the replicated RICH mirror the Alpha Magnetic Spectrometer (AMS-02) and testing on the RICH 1 replicated mirrors in the LHCb experiment. Results are favorable for optically coated composite mirrors in terms of mirror figure, reflectivity and surface finish, but no so on uncoated polymer mirrors.

Paper Details

Date Published: 1 September 2015
PDF: 9 pages
Proc. SPIE 9616, Nanophotonics and Macrophotonics for Space Environments IX, 961602 (1 September 2015); doi: 10.1117/12.2206184
Show Author Affiliations
R. C. Romeo, Composite Mirror Applications, Inc. (United States)
R. N. Martin, Composite Mirror Applications, Inc. (United States)
K. Bollweg, NASA Johnson Space Ctr. (United States)

Published in SPIE Proceedings Vol. 9616:
Nanophotonics and Macrophotonics for Space Environments IX
Edward W. Taylor; David A. Cardimona, Editor(s)

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