Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 58: Neutrino physics 8
T 58.7: Talk
Wednesday, March 6, 2024, 17:30–17:45, Geb. 30.22: Gaede-HS
Development of novel water-based liquid scintillator with pulse-shape discrimination capabilities — •Manuel Böhles1, Hans Theodor Josef Steiger2,1, David Dörflinger2, Ulrike Fahrendholz2, Meishu Lu2, Lothar Oberauer2, Matthias Raphael Stock2, and Michael Wurm1 — 1Johannes Gutenberg University Mainz, Institute of Physics, Staudingerweg 7, 55128 Mainz, Germany — 2Technical University of Munich, Physics Department, James-Franck-Str. 1, 85748 Garching, Germany
Future hybrid detectors in the field of neutrino physics have to combine high-resolution energy determination down to low thresholds through scintillation light detection and directional reconstruction with the help of Cherenkov radiation. The spectrum of potential applications is broad, ranging from long-baseline oscillation experiments to the measurement of low-energy solar neutrinos. One possible detector medium for these next-generation detectors is Water-based Liquid Scintillator (WbLS). Here, organic scintillators are colloidally dissolved in small quantities in highly pure water with the aid of surfactants. In this talk, a novel WbLS (based on Triton X-100) will be presented. Particular attention will be paid to its key properties, such as micelle size, scattering length, and transparency. Additionally, a study of its light yield as well as pulse-shape discrimination capabilities will be presented. This work is supported by the Clusters of Excellence PRISMA+ and ORIGINS and the Collaborative Research Center 1258.
Keywords: Water-based liquid scintillator; Cherenkov/Scintillation seperation; Particle detector development; Sustainability of detector construction