Bonn 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...
T 92.7: Vortrag
Freitag, 3. April 2020, 12:30–12:45, H-HS II
Development of novel Water based Liquid Scintillators for the THEIA Neutrino Experiment — Hans Theodor Josef Steiger1, Lothar Oberauer1, •Andreas Steiger1, Matthias Raphael Stock1, Daniele Guffanti2, and Michael Wurm2 — 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, 55099 Mainz
New developments in liquid scintillators, high-efficiency, fast photon detectors, and chromatic photon sorting have opened up the possibility for building a large-scale (up to 100 kt) neutrino detector called THEIA that is planned to be able to discriminate between Cherenkov and scintillation signals. Currently Water-based Liquid Scintillator (WbLS) is a potential candidate for this type of detector. By introducing a small amount (typically 1%-10%) of organic liquid scintillator by the use of surfactants into water, the liquid yield can be adjusted to allow detection of particles below Cherenkov threshold while not sacrificing directional capability. Typically, such mixtures can be considered to be cheaper than organic scintillators and to be less hazardous for the environment. In this talk some new WbLS cocktails (developed at TUM and JGU) and the techniques for their production as well as selected properties of the mixtures are discussed. This work is supported by the Bundesministerium für Bildung und Forschung (BMBF) in the frame of the Verbundprojekt 05H2018, the Excellence Cluster PRISMA+ and the Maier-Leibnitz-Laboratorium (MLL).