From July 1 to 5, the Jiangmen Underground Neutrino Observatory (JUNO) held its 24th International Collaboration Meeting in Kaiping, Jiangmen, Guangdong Province. The meeting was attended by 239 researchers from 12 countries and regions.

At the meeting, Prof. WANG Yifang, the spokesperson of JUNO and director of the Institute of High Energy Physics of the Chinese Academy of Sciences, introduced the overall progress of the JUNO project. Since the last meeting, significant advancements have been made in the detector installation. Over 80% of the acrylic sphere have been installed, and the installation of other components such as photomultiplier tubes, electronics, magnetic shielding coils, and Tyvek reflective film is progressing smoothly. The liquid scintillator purification system has completed a new round of commissioning, and the OSIRIS detector for online monitoring has begun testing. Various subsystems and physics analysis groups reported their progress and discussed plans for the next steps, preparing for the upcoming data taking phase. The meeting also established a strategy for the future data storage.

The application of the University of Liverpool to join the collaboration was officially approved.

It was decided that the 25th JUNO International Collaboration Meeting will be held from January 13 to 17, 2025, in Kaiping.

Fig.1. The 24th Collaboration Meeting (Image by IHEP)