if (iTRD) { //=================== TRD parameters ============================ AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator"); // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2) TRD->SetGasMix(1); // Switch on TR AliTRDsim *TRDsim = TRD->CreateTR(); }