17 September 2012 Design, performance prediction, and measurements of the interface region imaging spectrograph (IRIS) telescope
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Abstract
This paper discusses the design of the IRIS Small Explorer (SMEX) Cassegrain telescope, as well as its intended and measured performance. Lockheed Martin, along with SAO, Montana State University, and Stanford University are developing the IRIS instrument for a mission to examine the solar spectra in two bands, one centered on 1369 Å, and the other centered on 2810 Å. SAO led the design and construction of the telescope feed, with assistance from Lockheed and Montana State University. The telescope posed a number of implementation challenges, which are discussed here, including the fact that no effective filters exist to isolate the science spectra to the exclusion of the rest of the solar flux, making it necessary to allow full sunlight into the telescope.
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William A. Podgorski, William A. Podgorski, Peter N. Cheimets, Peter N. Cheimets, Leon Golub, Leon Golub, James R. Lemen, James R. Lemen, Alan M. Title, Alan M. Title, } "Design, performance prediction, and measurements of the interface region imaging spectrograph (IRIS) telescope", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84433D (17 September 2012); doi: 10.1117/12.925491; https://doi.org/10.1117/12.925491
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