Plastic scintillator bar with WLS fiber calorimeter for neutrino physics

A calorimeter with 180 plastic scintillator bars interleaved with 180 iron bars has been built and tested with pion and electron beams at CERN. The plastic scintillator bars, coupled to wavelength shifting fibers, are read with multi-anode PMTs and Amplitude-Time-Pattern self-triggering digitizing electronics. This type of calorimeter could be well suited for the construction of large, many kton detectors for neutrino oscillation experiments on the CERN to Gran Sasso CNGS beam or for the neutrino factory.