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Ultrathin EUV Filters Testing and Characterization under High Flux (13 SC) for Solar Orbiter EUI Instrument
Jacques, Lionel; Halain, Jean-Philippe; Rossi, Laurence et al.
201162nd International Astronautical Congress
 

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Keywords :
Thermal; EUV filter; Solar Orbiter
Abstract :
[en] The test setup and characterization parameters of ultrathin EUV filters under high solar flux are presented. These 150nm thick aluminium filters are used at the entrance of the Extreme Ultraviolet Imager (EUI) payload, which is developed at the Centre Spatial de Liège for the Solar Orbiter ESA M-class mission. The solar flux that they shall have to withstand will be as high as 13 solar constants when the spacecraft reach its 0.28AU perihelion. A specific design based on additional ribs has therefore been developed to enhance the thermal behaviour and heat evacuation while preserving its optical properties. It is essential to assess the design performances under the Solar Orbiter high solar flux. Therefore, thermal vacuum test under 13 solar constants will be performed. The filters temperature profiles will be measured during the tests through infrared imaging. A thermal correlation of the test will then be performed to deduce the filters actual thermal properties to be used in the global instrument geometrical and thermal mathematical models.
Research center :
CSL - Centre Spatial de Liège - ULiège
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Jacques, Lionel  ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Halain, Jean-Philippe ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Rossi, Laurence ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Thibert, Tanguy ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Hellin, Marie-Laure ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Jamotton, Pierre ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Mazy, Emmanuel ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Renotte, Etienne ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Fleury-Frenette, Karl ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Rochus, Pierre  ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Ultrathin EUV Filters Testing and Characterization under High Flux (13 SC) for Solar Orbiter EUI Instrument
Publication date :
07 October 2011
Event name :
62nd International Astronautical Congress
Event organizer :
International Astronautical Federation
Event place :
Cape Town, South Africa
Event date :
from 03-10-2011 to 07-10-2011
Audience :
International
Available on ORBi :
since 21 November 2011

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