Design of the extreme-ultraviolet spectrometer for imaging spectroscopy on the Solar Orbiter mission

Luca Poletto; Anna Gasparotto; Giuseppe Tondello; Roger J. Thomas

doi:10.1117/12.551211

11 October 2004 Design of the extreme-ultraviolet spectrometer for imaging spectroscopy on the Solar Orbiter mission

Luca Poletto, Anna Gasparotto, Giuseppe Tondello, Roger J. Thomas

Proceedings Volume 5488, UV and Gamma-Ray Space Telescope Systems; (2004) https://doi.org/10.1117/12.551211
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

Citation Download Citation

Luca Poletto, Anna Gasparotto, Giuseppe Tondello, and 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); https://doi.org/10.1117/12.551211

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