München 2019 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 6: Nuclear Astrophysics I
HK 6.5: Vortrag
Montag, 18. März 2019, 15:30–15:45, HS 16
Muon flux measurement in the shallow-underground laboratory Felsenkeller — •Felix Ludwig1,2, Louis Wagner1,2, Tariq Al-Abdullah1,3, Gergely Gábor Barnaföldi4, Daniel Bemmerer1, Detlev Degering5, Gergely Surányi6, and Kai Zuber2 — 1Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden — 2Technische Universität Dresden — 3Physics Department, Hashemite University, Zarqa, Jordan — 4Wigner Research Centre for Physics of the Hungarian Academy of Sciences (MTA Wigner), H-1525 Budapest, Hungary — 5VKTA – Strahlenschutz, Analytik & Entsorgung Rossendorf e.V., 01328 Dresden, Germany — 6Eötvös Loránd University, H-1117 Budapest, Hungary
Muons, which are produced by cosmic rays in the atmosphere, are highly penetrating and are mitigated by the 45 m of rock above the shallow underground laboratory Felsenkeller in Dresden, Germany. In order to determine the precise flux and angular distribution of muons reaching the tunnels of Felsenkeller, a portable muon detector, developed and built by the REGARD group in Hungary, was employed. Data has been taken at four positions in the Felsenkeller tunnels VIII and IX, where the new 5 MV accelerator will be placed. At each position, seven different orientations of the detector were used to compile a map of the upper hemisphere. The measured muon flux data are matched by a calculation and a simulation using the known shape and density of the local rock cover.