The JUNO OSIRIS detector

30 Aug 2021, 18:00
1h 30m
Poster Neutrino physics and astrophysics Poster session 1


Tobias Sterr (Eberhard Karls Universität Tübingen, Physikalisches Institut)


(Poster contribution, TAUP conference, 26.8. – 3.9.2021, Valencia, Spain)

-Tobias Sterr (1), for the JUNO OSIRIS Group

1 Eberhard Karls Universität Tübingen, Physikalisches Institut, Germany

The Online Scintillator Internal Radioactivity Investigation System (OSIRIS) is a 20-ton liquid scintillator detector currently under construction at the Jiangmen Underground Neutrino Observatory (JUNO) in Kaiping, China. OSIRIS features 76 newly developed, “intelligent PMTs” (iPMTs) surrounding a cylindrical acrylic vessel enclosed in a Cherenkov muon veto. Two calibration systems, an Automated Calibration Unit (ACU) and a laser calibration system are available. The detector will be integrated into the Liquid Handling System (LHS) of JUNO. The main purpose of OSIRIS is the monitoring of the radiopurity of the liquid scintillator during the filling phase of JUNO, measuring contamination levels of 238U, 232Th, 85Kr, 210Po and 14C. A consecutive physics phase addressing solar neutrinos and 0νββ decay is foreseen.

Reference to paper (DOI or arXiv) arXiv:2103.16900

Primary author

Tobias Sterr (Eberhard Karls Universität Tübingen, Physikalisches Institut)

Presentation Materials

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