void Config() { Int_t iField = 0; // libraries required by geant321 gSystem->Load("libgeant321"); new TGeant3("C++ Interface to Geant3"); // Create the output file TFile *rootfile = new TFile("TRD_test.root","recreate"); rootfile->SetCompressionLevel(2); // Define the monte carlo TGeant3 *geant3 = (TGeant3*) gMC; AliRunLoader* rl=0x0; cout << "AliTRDconfig.C: Creating Run Loader ..." <Fatal("AliTRDconfig.C","Can not instatiate the Run Loader"); return; } rl->SetCompressionLevel(2); rl->SetNumberOfEventsPerFile(3); gAlice->SetRunLoader(rl); // Set external decayer TVirtualMCDecayer *decayer = new AliDecayerPythia(); decayer->SetForceDecay(kAll); decayer->Init(); gMC->SetExternalDecayer(decayer); // ******* GEANT STEERING parameters FOR ALICE SIMULATION ******* geant3->SetTRIG(1); // Number of events to be processed geant3->SetSWIT(4,10); geant3->SetDEBU(0,0,1); //geant3->SetSWIT(2,2); geant3->SetDCAY(1); geant3->SetPAIR(1); geant3->SetCOMP(1); geant3->SetPHOT(1); geant3->SetPFIS(0); geant3->SetDRAY(0); geant3->SetANNI(1); geant3->SetBREM(1); geant3->SetMUNU(1); geant3->SetCKOV(1); geant3->SetHADR(1); // Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3) geant3->SetLOSS(2); geant3->SetMULS(1); geant3->SetRAYL(1); geant3->SetAUTO(1); // Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0) geant3->SetABAN(0); // Restore 3.16 behaviour for abandoned tracks geant3->SetOPTI(2); // Select optimisation level for GEANT geometry searches (0,1,2) geant3->SetERAN(5.e-7); Float_t cut = 1.e-3; // 1MeV cut by default Float_t tofmax = 1.e10; // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX geant3->SetCUTS(cut,cut, cut, cut, cut, cut, cut, cut, cut, cut, tofmax); // ************* STEERING parameters FOR ALICE SIMULATION ************** // --- Specify event type to be tracked through the ALICE setup // --- All positions are in cm, angles in degrees, and P and E in GeV AliGenCocktail *gener = new AliGenCocktail(); AliGenBox *genEl = new AliGenBox(100); genEl->SetOrigin(0,0,0); // Vertex position genEl->SetSigma(0,0,0); // Sigma in (X,Y,Z) (cm) on IP position genEl->SetPart(11); // Only electrons AliGenBox *genPi = new AliGenBox(100); genPi->SetOrigin(0,0,0); // Vertex position genPi->SetSigma(0,0,0); // Sigma in (X,Y,Z) (cm) on IP position genPi->SetPart(-211); // Only pions gener->AddGenerator(genEl,"Electrons",1); gener->AddGenerator(genPi,"Pions" ,1); if (iField) { // With magnetic field on AliGenerator *gg = gener->FirstGenerator()->Generator(); gg->SetMomentumRange(3.00,3.01); gg->SetPhiRange(76.0,92.0); gg->SetThetaRange(83.0,97.0); gg = gener->NextGenerator()->Generator(); gg->SetMomentumRange(0.560,0.561); gg->SetPhiRange(62.0,78.0); gg->SetThetaRange(83.0,97.0); gener->Init(); // Specify maximum magnetic field in Tesla (neg. ==> default field) // 0.4 T gAlice->SetField(-999,2,2.0); } else { // With magnetic field off AliGenerator *gg = gener->FirstGenerator()->Generator(); gg->SetMomentumRange(3.00,3.01); gg->SetPhiRange(82.0,98.0); gg->SetThetaRange(83.0,97.0); gg = gener->NextGenerator()->Generator(); gg->SetMomentumRange(0.560,0.561); gg->SetPhiRange(82.0,98.0); gg->SetThetaRange(83.0,97.0); gener->Init(); // Specify maximum magnetic field in Tesla (neg. ==> default field) // No field gAlice->SetField(0); } Int_t iMAG = 1; Int_t iITS = 1; Int_t iTPC = 1; Int_t iTRD = 1; Int_t iABSO = 1; Int_t iDIPO = 1; Int_t iHALL = 1; Int_t iFRAME = 1; Int_t iSHIL = 1; Int_t iPIPE = 1; rl->CdGAFile(); //=================== Alice BODY parameters ============================= AliBODY *BODY = new AliBODY("BODY","Alice envelop"); if (iMAG) { //=================== MAG parameters ============================ // --- Start with Magnet since detector layouts may be depending --- // --- on the selected Magnet dimensions --- AliMAG *MAG = new AliMAG("MAG","Magnet"); } if (iABSO) { //=================== ABSO parameters ============================ AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber"); } if (iDIPO) { //=================== DIPO parameters ============================ AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2"); } if (iHALL) { //=================== HALL parameters ============================ AliHALL *HALL = new AliHALL("HALL","Alice Hall"); } if (iFRAME) { //=================== FRAME parameters ============================ AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME","Space Frame"); FRAME->SetHoles(0); } if (iSHIL) { //=================== SHIL parameters ============================ AliSHIL *SHIL = new AliSHILv0("SHIL","Shielding"); } if (iPIPE) { //=================== PIPE parameters ============================ AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe"); } if (iITS) { //=================== ITS parameters ============================ // AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","ITS PPR"); ITS->SetMinorVersion(2); ITS->SetReadDet(kTRUE); ITS->SetThicknessDet1(200.); ITS->SetThicknessDet2(200.); ITS->SetThicknessChip1(200.); ITS->SetThicknessChip2(200.); ITS->SetRails(0); ITS->SetCoolingFluid(1); ITS->SetEUCLID(0); } if (iTPC) { //============================ TPC parameters ================================ // --- This allows the user to specify sectors for the SLOW (TPC geometry 2) // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper) // --- sectors are specified, any value other than that requires at least one // --- sector (lower or upper)to be specified! // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0) // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0) // --- SecLows - number of lower sectors specified (up to 6) // --- SecUps - number of upper sectors specified (up to 12) // --- Sens - sensitive strips for the Slow Simulator !!! // --- This does NOT work if all S or L-sectors are specified, i.e. // --- if SecAL or SecAU < 0 // // //----------------------------------------------------------------------------- AliTPC *TPC = new AliTPCv2("TPC","Default"); // All sectors included TPC->SetSecAL(-1); TPC->SetSecAU(-1); } if (iTRD) { //=================== TRD parameters ============================ AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator"); TRD->SetSensChamber(2); TRD->SetSensSector(13); // Set to detailed display TRD->SetDisplayType(1); // Draw TR photons TRD->SetDrawTR(1); // Switch on TR AliTRDsim *TRDsim = TRD->CreateTR(); } }