000004376 001__ 4376
000004376 005__ 20191220140920.0
000004376 037__ $$aPOSTER-2019-0122
000004376 100__ $$aRochus, Pierre
000004376 245__ $$aThe Solar Orbiter EUI instrument: The Extreme Ultraviolet Imager
000004376 260__ $$c2019
000004376 269__ $$c2019-12-10
000004376 500__ $$aSH21D-3291 session
000004376 520__ $$aThe Extreme Ultraviolet Imager (EUI) is part of the remote sensing instrument package of the ESA/NASA Solar Orbiter mission that will explore the inner heliosphere and observe the Sun from vantage points close to the Sun and out-of-the-ecliptic. EUI aims at improving our understanding of the structure and dynamics of the solar atmosphere. EUI will take images of the solar atmosphere, globally as well as at high resolution, and from high solar latitude perspectives. EUI consists of 3 telescopes that are optimized to image in Lyman-a and EUV 17.4nm and 30.4 nm to provide a coverage from chromosphere up to corona. EUI is designed to cope with the strong constraints that Solar Orbiter has as a deep space mission. Limited telemetry availability is compensated by state-of-the-art image compression, on board image processing and event selection. The imposed power limitations and potentially harsh radiation environment lead to the usage of novel CMOS sensors. As the unobstructed field of view of the telescopes needs to protrude through the spacecraft heat shield, the apertures were kept as small as possible. This lead to a systematic effort to optimize the throughput of every optical element and the reduction of noise levels in the sensor. In this paper we review the design of the two elements of the EUI instrument: the Optical Bench System and the Common Electronic Box. Particular attention is also given to the on board software, the intended operations, the ground software and the foreseen data products. EUI will bring unique science opportunities thanks to its specific design, its viewpoint and thanks to the planned synergies with the other Solar Orbiter instruments. We highlight in particular science opportunities brought by the out-of-ecliptic vantage point of the solar poles, the high resolution imaging of the high chromosphere and corona, and the connection to the outer corona as observed by coronagraphs.
000004376 594__ $$aSTCE
000004376 6531_ $$aSolar Orbiter
000004376 6531_ $$aEUI
000004376 700__ $$aAuchère, Frédéric
000004376 700__ $$aBerghmans, David
000004376 700__ $$aHarra, Louise
000004376 700__ $$aSchmutz, Werner
000004376 700__ $$aSchühle, Udo
000004376 773__ $$tAGU Fall Meeting 2019
000004376 8560_ $$fdavid.berghmans@observatoire.be
000004376 8564_ $$s12365923$$uhttp://publi2-as.oma.be/record/4376/files/20191210-AGU-EUIposter.key.pdf
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000004376 8564_ $$s14282$$uhttp://publi2-as.oma.be/record/4376/files/20191210-AGU-EUIposter.jpg?subformat=icon-180$$xicon-180
000004376 980__ $$aCPOSTER