Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

The JUNO detector: design concept and status

Jul 8, 2022, 3:30 PM
Room 2 (Italia)

Room 2 (Italia)

Parallel Talk Neutrino Physics Neutrino Physics


Alessandra Carlotta Re (Istituto Nazionale di Fisica Nucleare)


JUNO (Jiangmen Underground Neutrino Observatory) is a large liquid scintillator detector currently under construction in the underground laboratory of Kaiping (Guangdong, China) and expected to be completed in 2023.
The JUNO central detector will contain a 35.4 m diameter acrylic vessel filled with 20-kt of LAB-based scintillator, and submerged in a water pool equipped with PMTs to act as Cherenkov detector. The scintillation light will be read-out by 17612 20'' PMTs and 25600 3'' PMTs, reaching a geometric coverage higher than 75%. On top of the main detector, a plastic scintillator tracker will complete the JUNO veto system for cosmic muons.
JUNO's ambitious design primarily aims to the determination of the neutrino mass ordering at high statistical significance ($3-4\,\sigma$ in about 6 years of data taking), by measuring the oscillation pattern of electron antineutrinos generated by two nuclear power plants, on a $\sim53$ km baseline from the experimental site. JUNO will target an unprecedented 3% energy resolution at 1 MeV scale, thus it will be a unique facility for particle and astroparticle physics. Besides its main goal, JUNO indeed aspires to the sub-percent determination of the neutrino oscillation parameters ($\sin^2 \theta_{12}$, $\Delta \mathrm{m}^2_{21}$, and $\Delta \mathrm{m}^2_{31}$) as well as to the measurement of atmospheric neutrinos, to solar neutrino precision spectroscopy, and to the detection of low-energy neutrinos coming from supernovae and geo-neutrinos.
In this talk, the JUNO detector design and the status of the experiment construction will be presented.

In-person participation Yes

Primary author

Alessandra Carlotta Re (Istituto Nazionale di Fisica Nucleare)

Presentation materials