Improving the energy uniformity for large liquid scintillator detectors

Understand

It is challenging to achieve high precision energy resolution for large liquid scintillator detectors.

• Energy non-uniformity is one of the main obstacles.
• To surmount it, a calibration-data driven method was developed previously to reconstruct event energy in the JUNO experiment.
• In this paper, we investigated the choice of calibration sources thoroughly, optimized the calibration positions and corrected the residual detector azimuthal asymmetry.