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Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 78: Niederenergie-Neutrinophysik II

T 78.4: Talk

Wednesday, March 2, 2016, 17:30–17:45, VMP9 SR 07

Development of a scintillator-purity monitor for JUNO — •Heike Enzmann for the JUNO collaboration — Johannes Gutenberg Universität, Ec Prisma, Mainz, Deutschland

The unknown mass hierarchy of the neutrinos is one of the open issues of the standard model. The Jiangmen Underground Neutrino Observatory (JUNO) which is currently under construction in China is designed to determine the hierarchy via the measurement of the survival probability of reactor electron antineutrinos. These neutrinos are detected in a 20kt liquid scintillator. High optical purity of the scintillator is required to reach the aimed measurement precision. This talk discusses the development of an online monitor for optical transparency. To assure that the necessary quality levels of the scintillator are fulfilled over the entire filling process, the device will be installed in the filling line to continuously monitor the purity of the scintillator via a measurement of the attenuation length.

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