Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 55: Suche nach Dunkler Materie 2 (Direkter Nachweis)

T 55.5: Vortrag

Dienstag, 28. März 2017, 17:55–18:10, VSH 19

Simulations and Experiment with a small dual-phase xenon TPC — •Melanie Scheibelhut¹, Bastian Beskers¹, Pierre Sissol¹, Uwe Oberlack¹, Arnd Junghans², and Roland Beyer² — ¹Johannes Gutenberg-Universität Mainz — ²Helmholtz-Zentrum Dresden-Rossendorf

The MainzTPC is a small dual-phase xenon Time Projection Chamber (TPC), built to measure the scintillation and ionization yield of low-energy nuclear and electronic recoils (few keV range). The goal is to deepen the understanding of liquid xenon as a detection material, especially in the low-energy regime which is important for e.g. direct Dark Matter search experiments. For the measurement we built a scattering experiment for both electronic and nuclear recoils. To measure the response to electronic recoils, a Cs137 source in a Compton-scatter setup in combination with a germanium detector was used for the energy measurement. For the nuclear recoils, neutrons produced at the nELBE neutron time-of-flight facility at the ELBE accelerator of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) were used. For the detection of the scattered neutron, plastic scintillators were placed to measure the energy via time of flight or scatter angle. In addition, a detailed Monte Carlo simulation (GEANT4) of the experiment has been performed to compare it to the experimental results. Here we report about simulations with the MainzTPC at the HZDR.