Speaker
Felix Ludwig
(Helmholtz-Zentrum Dresden-Rossendorf)
Description
Muons, which are produced by cosmic rays in the atmosphere, are highly penetrating and are only mitigated by the roughly $50\,$m of rock above the shallow underground laboratory Felsenkeller in Dresden, Germany, which will be used for the study of reactions happening in the sun.
In order to determine the precise flux and angular distribution amount of muons reaching the tunnels of Felsenkeller, a portable muon detector developed and built by the REGARD group [1] was employed.
Data have been taken at four positions in Felsenkeller tunnels VIII and IX, where the new $5\,$MV accelerator will be hosted, and in addition for reference at three positions in Felsenkeller tunnel IV. 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 compared with a GEANT4 simulation using the known shape and density of the local rock cover.
**References**
[1] D. Varga, G. Kiss, G. Hamar, and G. Bencedi, Nucl. Inst. Meth. A 698, 11 (2013).
Primary author
Felix Ludwig
(Helmholtz-Zentrum Dresden-Rossendorf)
Co-authors
Daniel Bemmerer
(Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01328 Dresden, Germany)
Deszo Varga
(Wigner Research Centre for Physics of HAS, H-1525, Budapest, Hungary)
Gergely Gábor Barnaföldi
(Wigner Research Centre for Physics of HAS, H-1525, Budapest, Hungary)
Gergely SURÁNYI
(Eötvös Loránd University, H-1117, Budapest, Hungary)
Gergõ Hamar
(Wigner Research Centre for Physics of HAS, H-1525, Budapest, Hungary)
Kai Zuber
(Technische Universität Dresden, 01062 Dresden, Germany)
Laszlo Oláh
(Earthquake Research Institute, University of Tokyo, 113-0032, Tokyo, Japan)
Louis Wagner
(Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01328 Dresden, Germany)
Max Kotz
(Gymnasium Dresden Cotta, 01157 Dresden, Germany)
Mr
Tariq Al-Abdullah
(Hashemite University, 13133, Zarqa, Jordan)
