Inside the neutrino tunnel

Inside the neutrino tunnel, looking down from the proton synchrotron . The first units, which will guide the extracted proton beam onto the target in the magnetic horn, are being mounted in position. The horn itself will be located where the steel ingots for shielding can be seen further down the tunnel. Further down still, is the end of the reflector R2 whose power cables run along the right-hand side of the tunnel.