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Proceedings Paper

Irradiation of hydrophobic coating materials by gamma rays and protons: space applications
Author(s): Edward W. Taylor; Ronald G. Pirich; John D. Weir; Dennis Leyble; Steven Chu; Linda R. Taylor
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Paper Abstract

The responses of hydrophobic silicone-based coatings following irradiation by Co-60-gamma-rays are reported. The dimethylsilicone (DMS) resin coatings consisted of neat samples and samples incorporating semiconductor metal oxide (SMO) irradiated at photon energies of 1.17 and 1.33 MeV. Pre-and post-irradiation measurements indicated that at a total dose of ~ 185 krad(Si) there was no significant change to the coating static hydrophobic contact angles, surface molecular structure and biocide neutralization efficiency. The data was compared with previously irradiated and reported DMS/SMO coatings at a proton fluence of ~1.5 x 1012 p/cm2. Potential space applications for the radiation resistant coating self- cleaning properties are presented as well as a discussion of other environmental testing required to qualify the technology for transition to photonic space applications.

Paper Details

Date Published: 14 September 2010
PDF: 8 pages
Proc. SPIE 7817, Nanophotonics and Macrophotonics for Space Environments IV, 781709 (14 September 2010); doi: 10.1117/12.861740
Show Author Affiliations
Edward W. Taylor, International Photonics Consultants, Inc. (United States)
Ronald G. Pirich, Northrop Grumman Aerospace Systems (United States)
John D. Weir, Northrop Grumman Aerospace Systems (United States)
Dennis Leyble, Northrop Grumman Aerospace Systems (United States)
Steven Chu, Northrop Grumman Aerospace Systems (United States)
Linda R. Taylor, International Photonics Consultants, Inc. (United States)


Published in SPIE Proceedings Vol. 7817:
Nanophotonics and Macrophotonics for Space Environments IV
Edward W. Taylor; David A. Cardimona, Editor(s)

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