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T: Fachverband Teilchenphysik
T 29: Neutrino physics 3
T 29.4: Vortrag
Dienstag, 5. März 2024, 16:45–17:00, Geb. 20.30: 2.058
Development of a High-Pressure Scintillator Test Cell for NuDoubt++ — Tim Charisse1, Manuel Böhles1, Sebastian Böser1, Marcel Büchner1, •Magdalena Eisenhuth1, Cloé Girard1, Arshak Jafar1, Bastian Keßler1, Kyra Mossel1, Stefan Schoppmann2, Alfons Weber1, and Michael Wurm1 for the NuDoubt collaboration — 1JGU Mainz, Institute of Physics, 55128 Mainz — 2Exzellenzcluster PRISMA+, 55128 Mainz
The investigation of two-neutrino and neutrino-less double beta decay is crucial for understanding the Dirac or Majorana nature of neutrinos. In this context, the krypton isotope Kr-78 (Q=2.88 MeV) stands out as a promising candidate for a first detection of two-neutrino ECb+ and 2b+ decays. Detectors like the proposed NuDoubt++ experiment featuring opaque scintillator or an upgrade of the OSIRIS detector with hybrid scintillator can profit from solving the krypton gas in the scintillator at high pressure to increase the loading factor. This presentation explores the progress in developing a high-pressure scintillator test cell designed to examine the krypton loading factor. We discuss the design and fabrication of this overpressure test cell and, finally, elaborate on the methodology for measuring the loading factor in the scintillator volume.
Keywords: double beta decay; neutrino; scintillator loading; krypton