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T: Fachverband Teilchenphysik

T 9: Neutrinophysik IX

T 9.6: Vortrag

Montag, 19. März 2018, 17:15–17:30, Z6 - HS 0.002

Radon Monitoring in gaseous Nitrogen used for the Filling of the Central Detector of JUNO — •Hans Th. J. Steiger, Philipp Landgraf, Lothar Oberauer, Mathias Walter, Hermann Hagn, Sabrina Franke, Julia Sawatzki, Mario Schwarz, Konstantin Schweizer, and Marc Tippmann — Technische Universität München, Physik Department, James-Franck-Straße 1, 85748 Garching bei München

The planned JUNO (Jinangmen Underground Neutrino Observatory) Detector will use 20 kt of liquid scintillator (LS) based on LAB (Linear AlkylBenzene) as neutrino target within an acrylic sphere with a diameter of 35.4 m. For the filling of this sphere with LS pressurized gaseous nitrogen will be used. To avoid a contamination of the LS with ²²²Rn, it’s content in the nitrogen gas will be monitored. In this talk the status of a prototype radon monitoring system based on a proportional chamber as well as a setup for nitrogen scintillation counting, developed at Technische Universität München, are presented. This work is supported by the DFG Cluster of Excellence "Origin and Structure of the Universe", the DFG research unit "JUNO" and the Maier-Leibniz-Laboratorium.