Bonn 2020 – wissenschaftliches Programm
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HK 31.9: Vortrag
Mittwoch, 1. April 2020, 18:30–18:45, H-HS VI
Mini NM and MT measurements on the German research vessel Polarstern — •Bernd Heber1, Dennis Galsdorf1, Konstantin Herbst1, Vladimir Mares2, Carolin Schwerdt3, Du Toit Strauss4, and Michael Walter3 — 1Christian-Albrechts-Universität Kiel — 2Helmholtz Zentrum München, Neuherberg, Germany — 3Deutsches Elektronen-Synchrotron DESY Zeuthen, Germany — 4Center for Space Research, North-West University, Potchefstroom 2520, South Africa
Neutron Monitors (NMs) are ground-based devices to measure the variation of the intensity of the secondary neutrons from Galactic Cosmic Rays (GCRs). Since their measurements are influenced by the variable Earth magnetic field and the atmospheric conditions close to its position a detailed knowledge of the instrument sensitivity with geomagnetic latitude (rigidity), atmospheric pres- sure and the local environment is essential. Portable NMs, constructed by the North West University campus Potchefstroom, South Africa, and Muon Tele- scopes (MTs), constructed by DESY Zeuthen have been installed aboard the German research vessel Polarstern at the Neumeier III in Antarctica at sea level and at the Environmental Research Station Schneefernerhaus (UFS) Zugspitze at altitude of 2660 m a.s.l. Here we present the theoretical background that is utilized to determine the instrument response with respect to the geomagnetic position and the atmospheric pressure. The latter will be shown by investigating the measurements in Antarctica and on the Zugspitze. The dependence with the geomagnetic position is explored by analyzing Polarstern measurements.