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München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 54: Poster

HK 54.35: Poster

Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium

Neutron monitor measurements on the German research vessel Polarstern — •Bernd Heber1, Dennis Galsdorf1, Konstantin Herbst1, Michael Walter2, Du Toit Strauss3, and Carolin Schwerdt31Christian-Albrechts-Universität, 24118 Kiel, Germany — 2Deutsches Elektronen-Synchrotron DESY, D-15738 Zeuthen — 3Center for Space Research, North-West University, Potchefstroom 2520, South Africa

Neutron Monitors (NM) and Muon Telescopes (MT) are ground-based devices to measure the variation of galactic cosmic ray intensities. 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) and atmospheric pressure is essential. The rigidity dependence is determined experimentally by utilizing several so called latitude scans. The Polarstern is currently one of the most sophisticated polar research vessels in the world that spends almost 310 days a year at sea. Between November and March it usually sails to and around the waters of the Antarctic, while the northern summer months are spent in Arctic waters. In other words the vessel scans twice a year the rigidity range below the atmospheric threshold and above 10 GV. One Mini NM, constructed by the North West University campus Potchefstroom, and one MT, constructed by DESY Zeuthen, are measuring the variation of galactic cosmic rays with respect to the position of the vessel. In this presentation the measurements of the NM over the last years are presented.

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