Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 20: Neutrinophysik I

T 20.7: Vortrag

Montag, 19. März 2018, 17:35–17:50, Z6 - SR 2.012

Anti- and Coincidence Methods for CONUS — •Tobias Schierhuber for the CONUS collaboration — Max-Plank-Institut für Kernphysik, Heidelberg, Deutschland

The upcoming experiment CONUS is utilizing next generation Germanium detectors to measure coherent elastic neutrino nucleus scattering (CEνNS) and is located inside the commercial nuclear power plant in Brokdorf, Germany, at shallow depth (up to 45 m water equivalent). This means the muon flux from cosmic radiation is only reduced by a factor of ∼ 5. Therefore many steps are necessary to ensure low background results. One such step is active background suppression in order to remove unwanted components and obtain the best signal to background ratio possible.

This talk will give an introduction into two currently used background suppression methods: first, a cosmic-ray suppression system based on plastic scintillators to remove residual muon-induced signals and second, an anti-coincidence method applied between the four Germanium detectors, which are used in the CONUS experiment. Both systems are useful tools to study signal and background components by operating them in coincidence as well as anti-coincidence mode. Furthermore the underlying framework for the data acquisition, a custom solution using the Lynx DAQ will be presented.