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Proceedings Article

Battery-powered thin film deposition process for coating telescope mirrors in space

[+] Author Affiliations
David A. Sheikh

ZeCoat Corp. (United States)

Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99046J (July 29, 2016); doi:10.1117/12.2234335
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From Conference Volume 9904

  • Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
  • Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong
  • Edinburgh, United Kingdom | June 26, 2016

abstract

Aluminum films manufactured in the vacuum of space may increase the broadband reflectance response of a space telescope operating in the EUV (50-nm to 115-nm) by eliminating absorbing metal-fluorides and metal-oxides, which significantly reduce aluminum’s reflectance below 115-nm. Recent developments in battery technology allow small lithium batteries to rapidly discharge large amounts of energy. It is therefore conceivable to power an array of resistive evaporation filaments in a space environment, using a reasonable mass of batteries and other hardware. This paper presents modeling results for coating thickness as a function of position, for aluminum films made with a hexagonal array of battery powered evaporation sources. The model is based on measured data from a single battery-powered evaporation source. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

David A. Sheikh
" Battery-powered thin film deposition process for coating telescope mirrors in space ", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99046J (July 29, 2016); doi:10.1117/12.2234335; http://dx.doi.org/10.1117/12.2234335


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