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Proceedings Paper

Design of the extreme-ultraviolet spectrometer for imaging spectroscopy on the Solar Orbiter mission
Author(s): Luca Poletto; Anna Gasparotto; Giuseppe Tondello; Roger J. Thomas
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Paper 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.

Paper Details

Date Published: 11 October 2004
PDF: 12 pages
Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); doi: 10.1117/12.551211
Show Author Affiliations
Luca Poletto, INFM, Univ. degli Studi di Padova (Italy)
Anna Gasparotto, INFM, Univ. degli Studi di Padova (Italy)
Giuseppe Tondello, INFM, Univ. degli Studi di Padova (Italy)
Roger J. Thomas, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 5488:
UV and Gamma-Ray Space Telescope Systems
Guenther Hasinger; Martin J. L. Turner, Editor(s)

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