Feb 18 – 26, 2021
Europe/Rome timezone

JUNO OSIRIS Calibration Systems

Feb 25, 2021, 11:40 AM
Room 1 (https://unipd.link/NeuTel-ParallelRoom1)

Room 1


Parallel Flash talk Neutrino Telescopes and Multimessenger Data Science and Detector R&D


Tobias Sterr (Eberhard Karls Universität Tübingen, Physikalisches Institut)


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 embedded in a Cherenkov muon Veto. Its main purpose is the monitoring of the radiopurity of the liquid scintillator during the filling phase of JUNO. To achieve this goal, a rigorous calibration of OSIRIS is necessary. For this purpose, two independent calibration systems are introduced: On the one hand, a distributed Laser calibration system, as well as an automated calibration unit (ACU) based on a similar system from Daya Bay featuring three calibration capsules containing a low activity radioactive source, a high activity radioactive source and an optical calibration source.
In this talk we give a short introduction into the OSIRIS detector, its calibration systems, and the planned calibration modes.

Collaboration name JUNO

Primary author

Tobias Sterr (Eberhard Karls Universität Tübingen, Physikalisches Institut)

Presentation materials