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Proceedings Paper

Non-sequential design of a thermal radiative baffle for NFIRAOS
Author(s): Jenny Atwood; Jeffrey Crane; Glen Herriot
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Paper Abstract

NFIRAOS, the first-light adaptive optics system for the Thirty Meter Telescope (TMT), has a cooled optical enclosure at -30 deg C with an evacuated, double-pane window to allow light in. NFIRAOS has chosen a radiative baffle design between the windows to mitigate frosting of the outer window and to avoid convective turbulence on either window. Here, we present the design of the baffle and the non-sequential analysis showing sufficient radiation rejection.

Paper Details

Date Published: 27 November 2017
PDF: 8 pages
Proc. SPIE 10590, International Optical Design Conference 2017, 1059022 (27 November 2017);
Show Author Affiliations
Jenny Atwood, National Research Council Canada (Canada)
Jeffrey Crane, National Research Council Canada (Canada)
Glen Herriot, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 10590:
International Optical Design Conference 2017
Peter P. Clark; Julius A. Muschaweck; Richard N. Pfisterer; John R. Rogers, Editor(s)

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