Speaker
Description
The Jiangmen Underground Neutrino Observatory (JUNO) is a cutting-edge neutrino experiment located in Kaiping, south China, with the main goal of determining the Neutrino Mass Ordering (NMO).
In order to do that, JUNO will exploit 20 kton of organic liquid scintillator. Considering that neutrino signals are extremely rare, radiopurity plays a crucial role in JUNO physics analyses. In particular the required radioactive contaminants content in its liquid scintillator for the NMO is 10^-15 g/g of 238U and 232Th.
Reaching such level of radiopurity required several precautions, going from material cleaning and screening to tight radiopurity monitoring and assessment. The beginning of data taking enabled the implementation of offline analyses to monitor the radiopurity of the liquid scintillator and to verify the achievement of the required contamination levels. In particular, this presentation will report the selection strategies adopted for the monitoring of the 238U and 232Th decay chains.
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