The SoLid experiment located near the SCK•CEN BR2 research reactor in Belgium will address one of the most issues in neutrino physics: the experimental neutrino flux anomalies, called the Reactor Antineutrino Anomaly (RAA), that are pointing towards the existence of a new neutrino state with a mass of around 1 eV. Moreover a measurement of antineutrino energy spectrum produced by $^{235}$U which will help on 5 MeV distortion seen in the neutrino-reactor-experiment data.
The SoLid technology is based on a novel approach combining PVT cubes of 5x5x5 cm3 and 6LiF:ZnS (sheets ~ 250 μm thickness) scintillators allowing a good discrimination between electromagnetic and nuclear signals. The system is read out by a network of wavelength shifting fibres and MPPCs and allows a precise localisation of the Inverse Beta Decay (IBD) products.