June 22, 2020 to July 2, 2020
US/Central timezone

Measuring the Fluorescence Time Profile of the JUNO Liquid Scintillator using Gamma Radiation and a Pulsed Neutron Beam

Not scheduled


Mr Matthias Raphael Stock (Technische Universität München)


Major science goals of the upcoming Jiangmen Underground Neutrino Observatory (JUNO) in China are the search for the proton decay and the detection of the diffuse supernova neutrino background. Both phenomena will show characteristic signals in the detector. Therefore, we evaluate the pulse shape discrimination performance of the future JUNO liquid scintillator (LS) using excitation by gamma radiation inducing recoil electrons as well as a pulsed neutron beam inducing recoil protons. We developed an experimental setup to characterize the time distribution of the light emission in the fluorescence process of the LS. Results for the fluorescence decay-time profiles of the future JUNO LS, obtained during two beam times at the 14 MV Tandem Van de Graaff Accelerator of the Maier-Leibnitz-Laboratorium (MLL), are presented.

This work is supported by the DFG Research Unit JUNO, the Maier-Leibnitz-Laboratorium and the Cluster of Excellence ORIGINS.


Results for the fluorescence decay-time profiles of the JUNO liquid scintillator are presented.

Experiment/Collaboration JUNO Collaboration

Primary authors

Mr Hans Steiger (Technische Universität München) Mr Matthias Raphael Stock (Technische Universität München)


Mr Andreas Steiger (Technische Universität München) Mr David Dörflinger (Technische Universität München) Prof. Lothar Oberauer (Technische Universität München) Mr Ludwig Wallner (Technische Universität München) Ms Ulrike Fahrendholz (Technische Universität München)

Presentation materials