Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
EP: Fachverband Extraterrestrische Physik
EP 12: Near-Earth Space II
EP 12.3: Vortrag
Donnerstag, 23. März 2023, 16:30–16:45, ZEU/0160
Measurements of cosmic rays by a mini neutron monitor aboard the German research vessel Polarstern. — •Bernd Heber1, Sönke Burmeister1, Hanna Giese1, Konstantin Herbst1, Lisa Romaneehsen1, Carolin Schwerdt2, Dutoit Strauss3, and Michael Walter2 — 1Christian-Albrechts-Universität Kiel, D — 2Deutsches Elektronen-Synchrotron DESY in Zeuthen, D — 3Center for Space Research, NWU Potchefstroom, SA
Neutron monitors are ground-based devices that measure the secondary particle population, i.e., neutrons produced by, e.g., galactic cosmic rays (GCRs). Due to their functionality, they are integral counters whose flux is proportional to the variation of the input spectrum. However, the measured flux also depends on the geomagnetic position and the pressure at the monitor’s location. To better understand the NM response regular monitoring of the GCR intensity as a function of latitude is needed. Therefore a portable NM was installed aboard the German research vessel Polarstern in 2012. The vessel is ideally suited for this research campaign because it covers extensive geomagnetic latitudes (i.e., goes from the Arctic to the Antarctic) at least once per year. Since the installation aboard the vessel, 12 latitude scans were performed, allowing us to compute the so-called yield function by experimental means presented in this contribution.
The Kiel team received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 870405. The team would like to thank the crew of the Polarstern and the AWI for supporting our research campaign.