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Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 22: Poster

T 22.10: Poster

Monday, March 25, 2019, 16:00–18:30, C.A.R.L. Foyer 1. OG

Attenuation Measurements of Fast Neutrons in an Experimental Site at the Chooz Nuclear Power Plant for NU-CLEUS — •Andreas Erhart, Angelina Kinast, Alexander Langenkämper, Elizabeth Mondragón, Tobias Ortmann, Luca Pattavina, Walter Potzel, Stefan Schönert, and Raimund Strauss for the NU-CLEUS collaboration — Physikdepartment E15 and Excellence Cluster Universe, Technische Universität München, D-85748 Garching

The NU-CLEUS experiment is aiming for the detection of coherent neutrino-nucleus scattering (CEνNS) using gram-scale cryogenic bolometric detectors with a demonstrated ultra-low energy threshold (O( 10 eV)) and a time response fast enough to be operated in above ground conditions. Nuclear reactors are promising sources to explore this process at low energies since they deliver large fluxes of anti-neutrinos with energies below 10 MeV. For the NU-CLEUS experiment, a new experimental site at the Chooz nuclear power plant in France has been located. Fast neutrons represent a potentially dangerous background for the measurement of coherent neutrino-nucleus scattering as they interact with the detector-material via the same mechanism of nucleus scattering as CEνNS. Therefore, a detailed understanding of the neutron background rate is crucial. Attenuation measurements of fast neutrons in the experimental site at the Chooz nuclear power plant have been performed and first results are presented. This research was supported by the DFG cluster of excellence Origin and Structure of the Universe and by the SFB1258.

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