22 July 2016 A prototype of the NFIRAOS to instrument thermo-mechanical interface
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Abstract
NFIRAOS is the first light adaptive optics system for the Thirty Meter Telescope (TMT). NFIRAOS components are maintained at a stable -30°C ±0.5°C by embedding an actively cooled refrigeration system in the walls of the NFIRAOS enclosure. Three instruments are attached to interface ports in the NFIRAOS enclosure and are required to be thermally stable while the instrument rotates in place. Additionally, instruments must be installed and removed while NFIRAOS is cold to avoid lengthy cool-down cycles. A portion of the actively cooled enclosure system and the interface has been prototyped at NRC-Herzberg. We present a description of the design of the interface and results of testing so far and lessons learned.
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Alexis Hill, Alexis Hill, Peter Byrnes, Peter Byrnes, Joeleff Fitzsimmons, Joeleff Fitzsimmons, Glen Herriot, Glen Herriot, Vlad Reshetov, Vlad Reshetov, Kei Szeto, Kei Szeto, Calvin Winter, Calvin Winter, Yan Pennec, Yan Pennec, Sam Lambert, Sam Lambert, Evan Poulton, Evan Poulton, Jeffrey Doyle, Jeffrey Doyle, } "A prototype of the NFIRAOS to instrument thermo-mechanical interface", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991202 (22 July 2016); doi: 10.1117/12.2232848; https://doi.org/10.1117/12.2232848
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