Most of the neutrinos pass through the MiniBooNE detector just as they would through any other matter. But occasionally one interacts with the atoms in the mineral oil. When a muon neutrino hits an atom, a muon is released. Or, if a muon neutrino has oscillated into an electron neutrino, an electron is released. While the team cannot directly detect neutrinos, they can detect these particles created from the interactions. As the muon or electron travels through the mineral oil, they produce shockwaves of light called Cherenkov Radiation.