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Proceedings Paper

Solar simulation test up to 13 solar constants for the thermal balance of the Solar Orbiter EUI instrument
Author(s): Laurence Rossi; Maria Zhukova; Lionel Jacques; Jean-Philippe Halain; Marie-Laure Hellin; Pierre Jamotton; Etienne Renotte; Pierre Rochus; Sylvie Liebecq; Alexandra Mazzoli
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Paper Abstract

Solar Orbiter EUI instrument was submitted to a high solar flux to correlate the thermal model of the instrument. EUI, the Extreme Ultraviolet Imager, is developed by a European consortium led by the Centre Spatial de Liège for the Solar Orbiter ESA M-class mission. The solar flux that it shall have to withstand will be as high as 13 solar constants when the spacecraft reaches its 0.28AU perihelion. It is essential to verify the thermal design of the instrument, especially the heat evacuation property and to assess the thermo-mechanical behavior of the instrument when submitted to high thermal load. Therefore, a thermal balance test under 13 solar constants was performed on the first model of EUI, the Structural and Thermal Model. The optical analyses and experiments performed to characterize accurately the thermal and divergence parameters of the flux are presented; the set-up of the test, and the correlation with the thermal model performed to deduce the unknown thermal parameters of the instrument and assess its temperature profile under real flight conditions are also presented.

Paper Details

Date Published: 24 July 2014
PDF: 18 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91443H (24 July 2014); doi: 10.1117/12.2055125
Show Author Affiliations
Laurence Rossi, Univ. de Liège (Belgium)
Maria Zhukova, Univ. de Liège (Belgium)
Lionel Jacques, Univ. de Liège (Belgium)
Jean-Philippe Halain, Univ. de Liège (Belgium)
Marie-Laure Hellin, Univ. de Liège (Belgium)
Pierre Jamotton, Univ. de Liège (Belgium)
Etienne Renotte, Univ. de Liège (Belgium)
Pierre Rochus, Univ. de Liège (Belgium)
Sylvie Liebecq, Univ. de Liège (Belgium)
Alexandra Mazzoli, Univ. de Liège (Belgium)

Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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