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Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 43: Astroparticle Physics II

HK 43.7: Talk

Thursday, March 30, 2017, 16:00–16:15, F 073

Fast neutron detector data analysis, MC simulation and preliminary result in the context of MinidexIris Abt1, Allen Caldwell1, •Qiang Du1, Christopher Gooch1, Raphael Kneißl1, Xiang Liu1, Béla Majorovits1, Matteo Palerno2, Oliver Schulz1, and Laura Vanhoefer11Max-Planck-Institut für Physik, Deutschland — 2University of Hawaii, US

Muon-induced neutrons are a background in current and future low-background experiments. A Gd doped liquid scintillator detector has been operated in Munich and Tübingen to measure neutrons induced by muons in lead in parallel to the Minidex (Muon-induced neturons indirect detection experiment) setup. The neutron detector data will give a crosscheck to the results of Minidex. Neutrons are captured by gadolinium after thermalization in the scintillator resulting in neutron capture gamma-rays with about 8 MeV total energy. This leads to the possibilty of applying a time coincident cut which reduces the background significantly. The data analysis of the fast neutron detector will be introduced, including calibration with thorium 228, cobalt 60 and AmBe neutron sources. Also, the data to Monte Carlo comparison will be shown. Furthermore, some preliminary result on the investigation of muon-induced neutrons will be discussed.

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