KL and muon detector Resistive Plate Counter barrel Scintillator WLSF MPPC endcaps Particle Identification TimeofPropagation counter barrel Prox focusing Aerogel RICH fwd ID: 1031147
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1. electron (7GeV)positron (4GeV)KL and muon detector:Resistive Plate Counter (barrel)Scintillator + WLSF + MPPC (end-caps)Particle Identification Time-of-Propagation counter (barrel)Prox. focusing Aerogel RICH (fwd)Central Drift ChamberHe(50%):C2H6(50%), Small cells, long lever arm, fast electronicsEM Calorimeter:CsI(Tl), waveform sampling (barrel)Pure CsI + waveform sampling (end-caps)Vertex Detector2 layers DEPFET + 4 layers DSSDBeryllium beam pipe2cm diameterBelle II Detector