Heidelberg 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 48: Neutrino Physics without Accelerators 3

T 48.6: Vortrag

Dienstag, 22. März 2022, 17:30–17:45, T-H33

The Laser calibration system of the JUNO pre-detector OSIRIS — •Tobias Sterr, Lukas Bieger, David Blum, Marc Breisch, Srijan Delampady, Jessica Eck, Gina Grünauer, Tobias Heinz, Benedict Kaiser, Frieder Kohler, Tobias Lachenmaier, Axel Müller, Alexander Tietzsch, and Jan Züfle — Eberhard Karls Universität Tübingen, Physikalisches Institut

The Jiangmen Underground Neutrino Observatory is a multi-kton, multi-purpose Neutrino observatory currently under construction in Kaiping, Southern China. It has a vast potential for progress in several field of (astro-) particle physics (e.g., the neutrino mass ordering, supernova neutrinos, geoneutrinos, etc.). To achieve the goals, a thorough control of the radiopurity levels of the liquid scintillator is required. Therefor the Online Scintillator internal Radioactivity Investigation System (OSIRIS) was introduced as a pre-detector to JUNO. OSIRIS features 76 self-triggering intelligent PMTs (iPMTs) as well as a water-shielded, 20-ton liquid scintillator target. During the filling phase of the main detector, OSIRIS will measure the radiopurity of a fraction of each batch of liquid scintillator passed to JUNO. To enable OSIRIS to reach the necessary sensitivity to perform this task, two calibration systems will be available: An automated calibration unit and a laser calibration system. This talk will focus on the laser calibration system which will be used for both, timing and charge calibration of the iPMTs. Additionally, the preliminary calibration strategy of the laser system of OSIRIS will be presented. This work is supported by the Deutsche Forschungsgemeinschft (DFG)