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17 September 2012 Thermal design of interface region imaging spectrograph (IRIS) ULE primary mirror
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This paper presents the overall thermal design of the Interface Region Imaging Spectrograph (IRIS) telescope with focused descriptions of the primary mirror thermal design, telescope active thermal control system, ULE® mirror substrate thermal properties, and the thermal math model supporting the thermal design. The challenge of the IRIS primary mirror thermal design was to manage the un-filtered solar flux that directly impinges on the optical substrate, while maintaining the mirror within a narrow range of temperatures throughout the mission life. This thermal problem is compounded by a change in the absorption properties of ULE over time, due to UV light.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sang C. Park, Carl H. Yanari, Peter N. Cheimets, William A. Podgorski, and Jean-Pierre Wuelser "Thermal design of interface region imaging spectrograph (IRIS) ULE primary mirror", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84433E (17 September 2012);


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