Erlangen 2026 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 33: Nuclear Astrophysics IV
HK 33.8: Talk
Thursday, March 19, 2026, 15:30–15:45, PHIL A 602
Background radiation measurements and muon simulations for nuclear astrophysics in the new low seismic lab of the DZA — •Simon Vincent1,2, Daniel Bemmerer3, Günther Hasinger1,2, Michèle Heurs4,2,5, Mike Lindner2, and Konrad Schmidt3 — 1TU Dresden — 2Deutsches Zentrum für Astrophysik (DZA) — 3Helmholtz-Zentrum Dresden-Rossendorf (HZDR) — 4Leibniz-Universität Hannover — 5DESY Zeuthen
The German center for astrophysics (DZA, Deutsches Zentrum für Astrophysik) plans to build, among other projects, a 200 m deep underground facility. The facility is called the Low Seismic Lab (LSL) and will be placed in Lusatia, at a precise location still to be determined. Here we report on studies relevant to future nuclear and astroparticle experiments in LSL, in order to estimate the remaining cosmic-ray induced radiation background. The specific natural radioactivity of samples of several ∼250 m deep drill holes called DZA02, DZA03, and DZA05, respectively, has been determined using γ-ray spectroscopy at the Felsenkeller underground lab (Dresden), with a non-destructive technique including sample geometry modelling. In addition, GEANT4-based simulation studies of cosmic muon propagation have been performed to calculate the muon and neutron flux in LSL.