The Study of Neutrino Oscillations with Emulsion Detectors

Figure 18

Schematic view of the detection principle of OPERA (not to scale). Electronic trackers and changeable sheets are used in series to predict the neutrino interaction point in one of the nearly 150000 ECC units (bricks) that compose the target of the experiment. The τ kink decay-topology is identified by high-accuracy emulsion films sandwiched in the bricks.