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T: Fachverband Teilchenphysik
T 4: Detectors I (Scintillators)
T 4.6: Vortrag
Montag, 31. März 2025, 18:00–18:15, VG 0.110
Development of a Novel Te-doped Liquid Scintillator with Slow Light Emission for 0νββ-Decay Searches in a Hybrid Neutrino Detector — •Hans Theodor Josef Steiger1, Manuel Böhles2, Matthias Raphael Stock1, Meishu Lu1, Ulrike Fahrendholz1, Ronja Huber1, Lothar Oberauer1, Franz von Feilitzsch1, and Michael Wurm2 — 1Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany — 2Johannes Gutenberg Universität, Staudingerweg 7, 55128 Mainz, Germany
It is a long-standing paradigm that organic scintillators allow excellent energy resolution but no directional reconstruction. Here we show the foundation for overcoming this by scintillators with slow light emission, paving the way for hybrid detectors that combine the advantages of Cherenkov and scintillation detectors. In such slow liquid scintillators, it is possible to reconstruct directional and topological information from Cherenkov light, while the high light yield of an organic scintillator ensures excellent energy resolution and low thresholds necessary for many applications in neutrino and particle physics such as the search for the 0νββ decay. We also developed a novel loading technique for these scintillators with 130Te and show studies of fundamental properties of these scintillators and the novel dopant. This work is supported by the Clusters of Excellence PRISMA+ and ORIGINS and the Collaborative Research Center 1258.
Keywords: 0νββ decay; Slow Liquid Scintillators; 130Te