SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 67: Neutrinos, Dark Matter VII
T 67.2: Vortrag
Mittwoch, 22. März 2023, 16:05–16:20, HSZ/0002
Particle Dependent Parameter Determination of Liquid Scintillators for Neutrino Experiments — •David Dörflinger1, Lothar Oberauer1, Hans Th. J. Steiger1,2, Raphael Stock1, Ulrike Fahrendholz1, Lennard Kayser1, Florian Kübelbeck1, Korbinian Stangler1, Michael Wurm2, Dorina Zundel2, and Manuel Böhles2 — 1Technische Universität München (TUM), Physik-Department, James-Franck-Straße 1, 85748 Garching bei München — 2Institute of Physics and Excellence Cluster PRISMA+, Johannes Gutenberg-Universität (JGU) Mainz, Staudingerweg 9, 55099 Mainz
The Jiangmen Underground Neutrino Observatory (JUNO) aims to detect neutrinos using 20 kton of organic liquid scintillator based on LAB (Linear AlkylBenzene). In order to understand the detector response, a precise determination of particle dependent scintillation parameters is crucial. Compared to gamma radiation, neutrons have a different energy dissipation method in the detector material, which leads to a quenched light output. The quenching factors of the JUNO scintillator and other organic, as well as water based liquid scintillator samples have been studied using a particle accelerator driven neutron source at the INFN-LNL in Legnaro, Italy. The neutrons are produced quasi-monoenergetically by 7Li(p,n) reaction with energies between 3.5 MeV and 5.5 MeV. This work is supported by the DFG Research Unit JUNO (FOR2319) and the clusters of excellence ORIGINS and PRISMA+.