Characterization of JUNO Large-PMT electronics in a complete small scale test setup

The Jiangmen Underground Neutrino Observatory (JUNO) is a neutrino medium baseline experiment under construction in southern China. The experiment has been proposed with the main goals of determining the neutrino mass ordering and measuring the oscillation parameters with sub-percent precision. To reach these goals, JUNO is located about 53 km from two nuclear power plants and will detect electron antineutrinos from reactors through inverse beta decay. Furthermore, an unprecedented energy resolution of 3 % at 1 MeV is required. The JUNO detector consists of 20 kt of liquid scintillator (LS) contained in a 17.7 m radius acrylic vessel, which is instrumented with a system of 17 612 20-inch Large-PMTs and 25 600 3-inch Small-PMTs, with a total photo-coverage greater than 75 %. Additionally, 2400 Large-PMTs are installed in the instrumented Water Pool detector. The signal from the Large-PMTs is processed by the JUNO electronics system, which can be divided into two main parts: the front-en...