Dortmund 2021 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 94: Neutrino physics without accelerators VII
T 94.7: Vortrag
Donnerstag, 18. März 2021, 17:35–17:50, Ts
Instrumentation of the OSIRIS liquid handling system — •Eric Theisen1, Wilfried Depnering1, Heike Enzmann1, Paul Hackspacher1, Kai Loo1, Artur Meinusch1, Oliver Pilarczyk1, Hans Steiger1,2, and Michael Wurm1 — 1Johannes Gutenberg-Universität Mainz, Institute of Physics and Cluster of Excellence PRISMA+, Staudingerweg 7, 55128 Mainz — 2Physik-Department, Technische Universität München (TUM), James-Franck-Straße 1, 85748 Garching bei München
The Jiangmen Underground Neutrino Observatory (JUNO) located in southern China is currently beeing contructed for future investigations of the neutrino mass hierarchy. It will observe anti-neutrinos created in nuclear reactors in a distance of about 50 km. In order to achieve the desired sensitivity, it is important to monitor precisely the radioactivity of JUNO’s liquid scintillator target. For this purpose the 20-ton predetector OSIRIS (Online Scintillator Internal Radioactivity Investigation System) has been devised to monitor the radiopurity of the liquid scintillator before the filling of the JUNO main detector. To ensure a smooth operation of OSIRIS, numerous sensors of different types will provide precise knowledge of the filling levels, gas pressures and temperatures in each vessel of the liquid handling system. In this talk the concept for the OSIRIS liquid handling instrumentation and the sensor system design will be reported. This work has been supported by the DFG Research Unit "JUNO" (FOR2319) and the Cluster of Excellence PRISMA+.