Fluorescence emission of the JUNO liquid scintillator
Abstract
JUNO is a huge neutrino detector that will use 20 kton of organic liquid scintillator as its detection medium. The scintillator is a mixture of linear alkyl benzene (LAB), 2.5 g/L of 2,5-diphenyloxazole (PPO) and 3 mg/L of 1,4-Bis(2-methylstyryl)benzene (Bis-MSB). The main goal of JUNO is to determine the Neutrino Mass Ordering [1, 2, 3]. In order to achieve this purpose, good energy and position reconstruction is required, hence a complete understanding of the optical characteristics of the liquid scintillator is mandatory. In this paper we present the measurements on the JUNO scintillator emission spectrum, absorption length and fluorescence time distribution performed respectively with a spectrofluorimeter, a spectrophotometer and a custom made setup
Keywords
Cite
@article{arxiv.2501.09988,
title = {Fluorescence emission of the JUNO liquid scintillator},
author = {M. Beretta and F. Houria and F. Ferraro and D. Basilico and A. Brigatti and B. Caccianiga and A. Caslini and C. Landini and P. Lombardi and L. Pelicci and E. Percalli and G. Ranucci and A. C. Re and C. Clementi and F. Ortica and A. Romani and V. Antonelli and M. G. Giammarchi and L. Miramonti and P. Saggese and M. D. C. Torri and S. Aiello and G. Andronico and A. Barresi and A. Bergnoli and M. Borghesi and R. Brugnera and R. Bruno and A. Budano and A. Cammi and V. Cerrone and R. Caruso and D. Chiesa and C. Coletta and L. V. DÁuria and S. Dusini and A. Fabbri and G. Felici and A. Garfagnini and N. Giudice and A. Gavrikov and M. Grassi and N. Guardone and L. Lastrucci and I. Lippi and L. Loi and C. Lombardo and F. Mantovani and S. M. Mari and A. Martini and M. Montuschi and M. Nastasi and D. Orestano and A. Paoloni and F. Petrucci and E. Previtali and B. Ricci and G. Sava and A. Serafini and C. Sirignano and M. Sisti and L. Stanco and E. Stanescu Farilla and V. Strati and C. Tuvé and C. Venettacci and G. Verde and L. Votano},
journal= {arXiv preprint arXiv:2501.09988},
year = {2025}
}