Berlin 2014 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 8: Sonne und Heliosphäre (II)
EP 8.6: Vortrag
Freitag, 21. März 2014, 12:00–12:15, DO24 1.103
Anisotropy measurement capability of SOHO-EPHIN — •Saša Banjac1, Nina Dresing1, Raul Gómez-Herrero2, Bernd Heber1, Andreas Klassen1, Patrick Kühl1, and Cristoph Terasa1 — 1Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel — 2SRG, University of Alcalá, 28871, Alcalá de Henares, Spain
The Electron Proton Helium INstrument (EPHIN) is a multi-element array of solid-state detectors with anticoincidence to measure energy spectra of electrons in the range 250 keV to 8.7 MeV, and of hydrogen and helium isotopes in the range 4 MeV/n to 53 MeV/n. The instrument has a 83∘ full width conical field of view. It is mounted on the SOHO spacecraft pointing along the nominal Parker-Spiral, i.e. 45∘ west. Using a Monte Carlo based method we explore the anisotropy measurement capability of EPHIN, making use of the information provided by the segmentation of the two upper detectors of the stack (A and B). Finally, the developed methods are applied to a sample of solar events and the results are analyzed and compared in order to discuss the potential of the sensor to determine particle anisotropies.