SH036-0006
The High Energy Telescope (HET) on the Solar Orbiter Mission: Overview and First Data

Monday, 14 December 2020
Poster
Robert Elftmann1, Johan Lauritz Freiherr von Forstner1, Cesar Martin-Garcia2, Shrinivasrao R. Kulkarni1, Stephan I Boettcher1, Zigong Xu3, Robert F Wimmer-Schweingruber1, Javier Rodriguez-Pacheco4, George C Ho5 and Solar Orbiter EPD Team, (1)University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, (2)IEAP, University of Kiel, Kiel, Germany, (3)University of Kiel, Institute of Experimental and Applied Physics, Kiel, Germany, (4)University of Alcalá, Space Research Group, Alcalá de Henares, Spain, (5)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Abstract:
As part of the Energetic Particle Detector (EPD) suite onboard Solar Orbiter, the High
Energy Telescope has been launched on its mission to the Sun on February 9, 2020,
and has been measuring energetic particles since it was first switched on about two
weeks after launch. Using their double-ended telescopes, the two HET units provide
measurements of ions above 7 MeV/nuc and electrons above 300 keV in four viewing
directions. Each HET unit contains four silicon solid state detectors and a BGO scin-
tillation crystal, a setup which allows to discriminate particle species using a variant
of the dE/dx-E method.
We introduce the capabilities and data products of HET, and show first data from
its observations of Solar Energetic Particles (SEPs) and Galactic Cosmic Rays (GCRs)
during Solar Orbiter’s cruise phase.
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