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The fast Beam Current Transformer detector

The fast Beam Current Transformer detector which at CERN allows to precisely measure the timing of the proton pulses in the CNGS beam line in order to define the starting time of neutrinos travelling to Gran Sasso. The OPERA Experiment, dedicated to the observation of a neutrino beam sent by CERN to the INFN Gran Sasso Laboratory in Italy, has completed a three-year complex research study showing that neutrinos covered the 730 km distance separating the two sites sooner than expected. According to calculations, neutrinos are in fact 60 nanoseconds ahead of the 2.4 milliseconds it would take light to cover the same trajectory.

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