11 October 2004 Design of the extreme-ultraviolet spectrometer for imaging spectroscopy on the Solar Orbiter mission
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Abstract
We present the optical design of the spectrometer for imaging spectroscopy in the extreme-ultraviolet (EUV) spectral region for the Solar Orbiter mission. The instrument consists of a telescope making an image of the Sun on an entrance slit of a grating spectrometer. Two different optical designs are presented: a) a normal-incidence off-axis paraboloid telescope feeding a normal-incidence spectrometer and b) a grazing-incidence Wolter-type telescope feeding a normal-incidence spectrometer. The spectral region of operation is the 58-63 nm region, with the possibility of extending the range to the 116-126 nm region. The two designs are discussed in terms of optical performance, effective area and thermal load.
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Luca Poletto, Luca Poletto, Anna Gasparotto, Anna Gasparotto, Giuseppe Tondello, Giuseppe Tondello, Roger J. Thomas, Roger J. Thomas, } "Design of the extreme-ultraviolet spectrometer for imaging spectroscopy on the Solar Orbiter mission", Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); doi: 10.1117/12.551211; https://doi.org/10.1117/12.551211
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