Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 74: Neutrino Physics without Accelerators 5

T 74.5: Vortrag

Mittwoch, 23. März 2022, 17:20–17:35, T-H33

Simulation of Pulse Shapes for Low Background Germanium Spectrometers in CONUS — •Janine Hempfling for the CONUS collaboration — Max-Planck Institut für Kernphysik (MPIK), Heidelberg

The CONUS experiment aims to detect coherent elastic neutrino nucleus scattering (CEν NS). For this goal four 1 kg point-contact high-purity germanium detectors are operated near the 3.9 GW_th core of the Brokdorf nuclear power plant. A very good background suppression is crucial for the success of the experiment, achieved by an elaborate shield. A new opportunity for additional background reduction is offered by pulse shape analysis of the detector signals. To verify this analysis a pulse shape simulation (PSS) for the CONUS experiment is developed based on the software package SigGen. Additionally, investigations of the correlation between the signal shape and the interaction position as well as the fraction of single-site events and multi-site events are possible with the PSS. This talk presents the requirements needed to set up a PSS, starting from the input signal generation with the GEANT4 framework MaGe to the modeling of the response of the electronics up to the final output pulses. Furthermore, a comparison between the obtained simulation results and the measured signals will be discussed.