Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 34: Neutrino physics 5
T 34.1: Vortrag
Dienstag, 5. März 2024, 16:00–16:15, Geb. 30.22: Gaede-HS
Scintillation and Cherenkov Light Separation in Organic Liquid Scintillators for Large Scale Neutrino Detectors — •Meishu Lu1, Hans Steiger1,2, M. R. Stock1, U. Fahrendholz1, and L. Oberauer1 — 1Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching — 2Johannes Gutenberg University Mainz, Cluster of Excellence PRISMA+, Staudingerweg 9, 55128 Mainz
The separate observation of Cherenkov and scintillation light in liquid scintillation media and thus the extraction of a directional signal and excellent energy and vertex resolution is of great importance in current R&D projects for large scale neutrino detectors like JUNO or Theia. The expected progress in the field of background suppression is promising. To study this potential in novel liquid scintillators, a new setup exploiting the principle of time-correlated single photon counting with cutting-edge photomultiplier tubes is under commissioning at TUM. The experiment enables detailed studies of the probability density function of the photon emission from the scintillation medium including both Cherenkov, and scintillation light. A separation can be achieved either by direct timing or by chromatic filtering. In this talk the design of this novel table-top experiment is discussed as well as first test measurements with the used photosensors. This work has been supported by the Cluster of Excellence PRISMA+, the Cluster of Excellence ORIGINS as well as the Collaborative Research Center Neutrinos and Dark Matter in Astro- and Particle Physics (SFB1258) and the DFG Research Units 2319 and 5519.
Keywords: Development of Novel Scintillation Media; Scintillation and Cherenkov Light Separation; Organic Liquid Scintillators; THEIA; EoS