title: Improvements to the muon veto of the Dortmund Low Background Facility.
abstract: The Dortmund Low Background Facility is a germanium gamma-ray spectrometry laboratory situated above ground. A massive artificial shielding, corresponding to 10m of water equivalent in combination with an active muon veto results in a background level comparable to laboratories situated underground. Due to the recent completion of the muon veto, the background is lowered by 20% compared to previously reported values (Gastrich et al., 2016). Additionally, Monte Carlo simulations of the cosmic muon induced components of the background spectrum are described.
authors.affiliation: Technische Universität Dortmund, Lehrstuhl für Experimentelle Physik IV, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany. Electronic address: christian.nitsch@tu-dortmund.de.
authors.forename: Christian
authors.initials: C
authors.lastname: Nitsch
authors.affiliation: Technische Universität Dortmund, Lehrstuhl für Experimentelle Physik IV, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
authors.forename: Marcel
authors.initials: M
authors.lastname: Gerhardt
authors.affiliation: Technische Universität Dortmund, Lehrstuhl für Experimentelle Physik IV, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
authors.forename: Claus
authors.initials: C
authors.lastname: Gößling
authors.affiliation: Technische Universität Dortmund, Lehrstuhl für Experimentelle Physik IV, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
authors.forename: Kevin
authors.initials: K
authors.lastname: Kröninger