ORBi: Halain Jean-Philippe - The technical challenges of the Solar-Orbiter EUI instrument

Reference : The technical challenges of the Solar-Orbiter EUI instrument


	Document type :	Scientific congresses and symposiums : Paper published in a journal
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering
	To cite this reference:	http://hdl.handle.net/2268/91656

Title :	The technical challenges of the Solar-Orbiter EUI instrument
Language :	English
Author, co-author :	Halain, Jean-Philippe [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Rochus, Pierre [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Renotte, Etienne [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Defise, Jean-Marc [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Satellites, missions et instruments spatiaux >]
	Rossi, Laurence [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Jacques, Lionel [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Publication date :	2010
Journal title :	Proceedings - Society of Photo-Optical Instrumentation Engineers
Volume :	7732
Issue/season :	26
On invitation :	No
Audience :	International
ISSN :	1018-4732
Event name :	SPIE Astronomical Telescopes and Instrumentation
Event date :	June 2010
Event place (city) :	San Diego
Event country :	United States
Keywords :	[en] Extreme Ultraviolet Imager ; Full Sun Imager ; High-Resolution Imager ; Solar Orbiter ; Transmission Filter ; APS detector ; Bandpass coating
Abstract :	[en] The Extreme Ultraviolet Imager (EUI) onboard Solar Orbiter consists of a suite of two high-resolution imagers (HRI) and one dual-band full Sun imager (FSI) that will provide EUV and Lyman-α images of the solar atmospheric layers above the photosphere. The EUI instrument is based on a set of challenging new technologies allowing to reach the scientific objectives and to cope with the hard space environment of the Solar Orbiter mission. The mechanical concept of the EUI instrument is based on a common structure supporting the HRI and FSI channels, and a separated electronic box. A heat rejection baffle system is used to reduce the Sun heat load and provide a first protection level against the solar disk straylight. The spectral bands are selected by thin filters and multilayer mirror coatings. The detectors are 10µm pitch back illuminated CMOS Active Pixel Sensors (APS), best suited for the EUI science requirements and radiation hardness. This paper presents the EUI instrument concept and its major sub-systems. The current developments of the instrument technologies are also summarized.
Research units :	Centre Spatial de Liège - CSL
Funders :	The Belgian institutions are funded by Belgian Federal Science Policy Office; the French institutions by Centre National d'Etudes Spatiales (CNES), the UK institution by the UK Space Agency (UKSA); and the German institution by Deutsche Zentrum für Luft- und Raumfahrt e.V. (DLR).
Name of the research project :	EUI on Solar Orbiter
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/91656

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