Barrel Scintillator for ALPHA-g
Composed of 64 trapezoidal scintillating bars arranged in a barrel shape. Each bar is readout at each end with SiPM sensors for a total of 128 channels. The "Barrel Scintillator" encapsulates the radial TPC in order to identify cosmic rays. The barrel length is about 2.5m, with a diameter of 0.5m.