Example #1
0
void
DetectorInit(Int_t tag)
{
  /*
   * DetectorInit
   * initialise the detectors to the default 
   * configuration automatically according to year/period
   *
   */
  
  Int_t year = atoi(gSystem->Getenv("CONFIG_YEAR"));


  //=================== 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 AliABSOv3("ABSO", "Muon Absorber");
    }

  if (iDIPO)
    {
      //=================== DIPO parameters ============================

      AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
    }

  if (iHALL)
    {
      //=================== HALL parameters ============================

      AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
    }


  if (iFRAME)
    {
      //=================== FRAME parameters ============================

      if (year < 2015) {
 	AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
	FRAME->SetHoles(1);
      }
      else {
 	AliFRAMEv3 *FRAME = new AliFRAMEv3("FRAME", "Space Frame");
	FRAME->SetHoles(1);
      }
    }

  if (iSHIL)
    {
      //=================== SHIL parameters ============================

      AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
    }


  if (iPIPE)
    {
      //=================== PIPE parameters ============================

      AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
    }
 
  if (iITS)
    {
      //=================== ITS parameters ============================
      
      AliITS *ITS  = new AliITSv11("ITS","ITS v11");
      if( tag == kDetectorPhosOnly)
	ITS->DisableStepManager();
    }

  if (iTPC)
    {
      //============================ TPC parameters =====================

      AliTPC *TPC = new AliTPCv2("TPC", "Default");
      if (isGeant4) 
	TPC->SetPrimaryIonisation(1);
      if( tag == kDetectorPhosOnly)
	TPC->DisableStepManager();
    }


  if (iTOF) {
    //=================== TOF parameters ============================

    AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
    if( tag == kDetectorPhosOnly)
      TOF->DisableStepManager();
  }


  if (iHMPID)
    {
      //=================== HMPID parameters ===========================

      AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");
      if( tag == kDetectorPhosOnly)
	HMPID->DisableStepManager();
    }


  if (iZDC)
    {
      //=================== ZDC parameters ============================

      if (year == 2010) {
	AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
	ZDC->SetSpectatorsTrack();
        ZDC->SetLumiLength(0.);
      }
      else if (year < 2015) {
	AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
	//Collimators aperture
	ZDC->SetVCollSideCAperture(0.85);
	ZDC->SetVCollSideCCentre(0.);
	ZDC->SetVCollSideAAperture(0.75);
	ZDC->SetVCollSideACentre(0.);
	//Detector position
	ZDC->SetYZNC(1.6);
	ZDC->SetYZNA(1.6);
	ZDC->SetYZPC(1.6);
	ZDC->SetYZPA(1.6);
      }
      else {
	AliZDC *ZDC = new AliZDCv4("ZDC", "normal ZDC");
	ZDC->SetLumiLength(0.);
	ZDC->SetVCollSideCAperture(2.8);
	ZDC->SetVCollSideCApertureNeg(2.8);
      }
      if( tag == kDetectorPhosOnly)
	ZDC->DisableStepManager();
    }

  if (iTRD)
    {
      //=================== TRD parameters ============================

      if (isGeant4) {
	AliTRDtestG4 *TRD = new AliTRDtestG4("TRD", "TRD slow simulator");
	TRD->SetScaleG4(1.11);
      }
      else 
	AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
      AliTRDgeometry *geoTRD = TRD->GetGeometry();
      // Partial geometry: modules at 0,1,7,8,9,16,17
      // starting at 3h in positive direction

      if ((year == 2010) || (year == 2009)) {
	geoTRD->SetSMstatus(2,0);
	geoTRD->SetSMstatus(3,0);
	geoTRD->SetSMstatus(4,0);
	geoTRD->SetSMstatus(5,0);
	geoTRD->SetSMstatus(6,0);
	geoTRD->SetSMstatus(11,0);
	geoTRD->SetSMstatus(12,0);
	geoTRD->SetSMstatus(13,0);
	geoTRD->SetSMstatus(14,0);
	geoTRD->SetSMstatus(15,0);
	geoTRD->SetSMstatus(16,0);	
      }
      else if (year == 2011) {
	geoTRD->SetSMstatus(2,0);
	geoTRD->SetSMstatus(3,0);
	geoTRD->SetSMstatus(4,0);
	geoTRD->SetSMstatus(5,0);
	geoTRD->SetSMstatus(6,0);
	geoTRD->SetSMstatus(12,0);
	geoTRD->SetSMstatus(13,0);
	geoTRD->SetSMstatus(14,0);
      }
      else if ((year == 2012) || (year ==2013)) {
	geoTRD->SetSMstatus(4,0);
	geoTRD->SetSMstatus(5,0);
	geoTRD->SetSMstatus(12,0);
	geoTRD->SetSMstatus(13,0);
	geoTRD->SetSMstatus(14,0);
      }
      if( tag == kDetectorPhosOnly)
	TRD->DisableStepManager();
    }
  
  if (iFMD)
    {
      //=================== FMD parameters ============================
      
      AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
      if( tag == kDetectorPhosOnly)
	FMD->DisableStepManager();
    }

  if (iMUON)
    {
      //=================== MUON parameters ===========================
      // New MUONv1 version (geometry defined via builders)
      AliMUON *MUON = new AliMUONv1("MUON", "default");
      // activate trigger efficiency by cells
      MUON->SetTriggerEffCells(1); // backward compatibility
      MUON->SetTriggerResponseV1(2); // backward compatibility
      if( tag == kDetectorPhosOnly)
	MUON->DisableStepManager();
    }

  if (iPHOS)
    {
      //=================== PHOS parameters ===========================

      if (year < 2015) {
	AliPHOS *PHOS = new AliPHOSv1("PHOS", "noCPV_Modules123");
      }
      else {
	AliPHOS *PHOS = new AliPHOSv1("PHOS", "Run2");
      }
	
    }


  if (iPMD)
    {
      //=================== PMD parameters ============================

      AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
      if( tag == kDetectorPhosOnly)
	PMD->DisableStepManager();
    }

  if (iT0)
    {
      //=================== T0 parameters ============================
      AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
      if( tag == kDetectorPhosOnly)
	  T0->DisableStepManager();
    }

  if (iEMCAL)
    {
      //=================== EMCAL parameters ============================

      AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE12SMV1_DCAL_8SM");
      // by default Run2 configuration name but the proper geometry name is taken 
      // automatically depending on the anchor run 
      // 2010 - 4 SM, 2011 - 10 SM, 2012 - 12 SM, >2014 - 20 SM
      
      if( tag == kDetectorPhosOnly)
	EMCAL->DisableStepManager();
      
    }

  if (iACORDE)
    {
      //=================== ACORDE parameters ============================

      AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
      if( tag == kDetectorPhosOnly)
	ACORDE->DisableStepManager();
    }

  if (iVZERO)
    {
      //=================== ACORDE parameters ============================
      
      AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
      if( tag == kDetectorPhosOnly)
	VZERO->DisableStepManager();
    }  

  if (iAD){
    //=================== AD parameters ============================

    AliAD *AD = new AliADv1("AD", "normal AD");
    if( tag == kDetectorPhosOnly)
      AD->DisableStepManager();
  }

}
Example #2
0
void Config()
{
    

  // Get settings from environment variables
  ProcessEnvironmentVars();

  gRandom->SetSeed(seed);
  cerr<<"Seed for random number generation= "<<seed<<endl; 

  // Libraries required by geant321
#if defined(__CINT__)
  gSystem->Load("liblhapdf");      // Parton density functions
  gSystem->Load("libEGPythia6");   // TGenerator interface
  if (proc == kPythia6 || proc == kPhojet) {
    gSystem->Load("libpythia6");        // Pythia 6.2
  } else {
    gSystem->Load("libpythia6.4.21");   // Pythia 6.4
  }
  gSystem->Load("libAliPythia6");  // ALICE specific implementations
  // gSystem->Load("libgeant321");
#endif

  // new TGeant3TGeo("C++ Interface to Geant3");

  //=======================================================================
  //  Create the output file

   
  AliRunLoader* rl=0x0;

  cout<<"Config.C: Creating Run Loader ..."<<endl;
  rl = AliRunLoader::Open("galice.root",
			  AliConfig::GetDefaultEventFolderName(),
			  "recreate");
  if (rl == 0x0)
    {
      gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
      return;
    }
  rl->SetCompressionLevel(2);
  rl->SetNumberOfEventsPerFile(1000);
  gAlice->SetRunLoader(rl);
  // gAlice->SetGeometryFromFile("geometry.root");
  // gAlice->SetGeometryFromCDB();
  
  // Set the trigger configuration: proton-proton

  AliSimulation::Instance()->SetTriggerConfig(pprTrigConfName[strig]);
  cout <<"Trigger configuration is set to  "<<pprTrigConfName[strig]<<endl;


  rl->CdGAFile();
  
  Int_t iABSO  = 1;
  Int_t iACORDE= 0;
  Int_t iDIPO  = 1;
  Int_t iEMCAL = 1;
  Int_t iFMD   = 1;
  Int_t iFRAME = 1;
  Int_t iHALL  = 1;
  Int_t iITS   = 1;
  Int_t iMAG   = 1;
  Int_t iMUON  = 1;
  Int_t iPHOS  = 1;
  Int_t iPIPE  = 1;
  Int_t iPMD   = 1;
  Int_t iHMPID = 1;
  Int_t iSHIL  = 1;
  Int_t iT0    = 1;
  Int_t iTOF   = 1;
  Int_t iTPC   = 1;
  Int_t iTRD   = 1;
  Int_t iVZERO = 1;
  Int_t iZDC   = 1;
  

  //=================== 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 AliABSOv3("ABSO", "Muon Absorber");
    }

  if (iDIPO)
    {
      //=================== DIPO parameters ============================

      AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
    }

  if (iHALL)
    {
      //=================== HALL parameters ============================

      AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
    }


  if (iFRAME)
    {
      //=================== FRAME parameters ============================

      AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
      FRAME->SetHoles(1);
    }

  if (iSHIL)
    {
      //=================== SHIL parameters ============================

      AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
    }


  if (iPIPE)
    {
      //=================== PIPE parameters ============================

      AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
    }
 
  if (iITS)
    {
      //=================== ITS parameters ============================

      AliITS *ITS  = new AliITSv11("ITS","ITS v11");
    }

  if (iTPC)
    {
      //============================ TPC parameters =====================

      AliTPC *TPC = new AliTPCv2("TPC", "Default");
      TPC->SetPrimaryIonisation();// not used with Geant3
    }


  if (iTOF) {
    //=================== TOF parameters ============================

    AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
  }


  if (iHMPID)
    {
      //=================== HMPID parameters ===========================

      AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");

    }


  if (iZDC)
    {
      //=================== ZDC parameters ============================
	
      AliZDC *ZDC = new AliZDCv4("ZDC", "normal ZDC");
      //Collimators aperture
      ZDC->SetVCollSideCAperture(0.85);
      ZDC->SetVCollSideCCentre(0.);
      ZDC->SetVCollSideAAperture(0.75);
      ZDC->SetVCollSideACentre(0.);
      //Detector position
      ZDC->SetYZNC(1.6);
      ZDC->SetYZNA(1.6);
      ZDC->SetYZPC(1.6);
      ZDC->SetYZPA(1.6);
    }

  if (iTRD)
    {
      //=================== TRD parameters ============================

      AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
      AliTRDgeometry *geoTRD = TRD->GetGeometry();
      // Partial geometry: modules at 0,1,7,8,9,16,17
      // starting at 3h in positive direction
      geoTRD->SetSMstatus(2,0);
      geoTRD->SetSMstatus(3,0);
      geoTRD->SetSMstatus(4,0);
      geoTRD->SetSMstatus(5,0);
      geoTRD->SetSMstatus(6,0);
      geoTRD->SetSMstatus(11,0);
      geoTRD->SetSMstatus(12,0);
      geoTRD->SetSMstatus(13,0);
      geoTRD->SetSMstatus(14,0);
      geoTRD->SetSMstatus(15,0);
      geoTRD->SetSMstatus(16,0);
    }

  if (iFMD)
    {
      //=================== FMD parameters ============================

      AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
    }

  if (iMUON)
    {
      //=================== MUON parameters ===========================
      // New MUONv1 version (geometry defined via builders)
      AliMUON *MUON = new AliMUONv1("MUON", "default");
      // activate trigger efficiency by cells
      MUON->SetTriggerEffCells(1);
    }

  if (iPHOS)
    {
      //=================== PHOS parameters ===========================

      AliPHOS *PHOS = new AliPHOSv1("PHOS", "noCPV_Modules123");

    }


  if (iPMD)
    {
      //=================== PMD parameters ============================

      AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
    }

  if (iT0)
    {
      //=================== T0 parameters ============================
      AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
    }

  if (iEMCAL)
    {
      //=================== EMCAL parameters ============================

      AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_FIRSTYEARV1");
    }

  if (iACORDE)
    {
      //=================== ACORDE parameters ============================

      AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
    }

  if (iVZERO)
    {
      //=================== ACORDE parameters ============================

      AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
    }



  // Load Geant4 + Geant4 VMC libraries
  //
  std::string g4libmacro("$G4VMCINSTALL/share/examples/macro/g4libs.C");
  if (gClassTable->GetID("TGeant4") == -1) {
    // Load Geant4 libraries
    if (!gInterpreter->IsLoaded(g4libmacro.c_str())) {
      gROOT->LoadMacro(g4libmacro.c_str());
      gInterpreter->ProcessLine("g4libs()");
    }
  }


  // Create Geant4 VMC
  //  
  TGeant4 *geant4 = 0;
  if ( ! gMC ) {
    TG4RunConfiguration* runConfiguration=0x0;
    for (Int_t iList = 0; iList < kListMax; iList++) {
      if(iList<kListMax/2){
	if(physicslist == iList){
	  runConfiguration = 
	    new TG4RunConfiguration("geomRoot", 
				    physicsListName[iList], 
				    "specialCuts+stackPopper+stepLimiter",
				    true);
	}
      }
      else if(iList>=kListMax/2){//add "optical" PL to HadronPhysicsList
	if(physicslist == iList){
	  runConfiguration = 
	    new TG4RunConfiguration("geomRoot", 
				    Form("%s+optical",physicsListName[iList-kListMax/2]), 
				    "specialCuts+stackPopper+stepLimiter",
				    true);
	}
      }
    }
    geant4 = new TGeant4("TGeant4", "The Geant4 Monte Carlo", runConfiguration);
    cout << "Geant4 has been created." << endl;
  } 
  else {
    cout << "Monte Carlo has been already created." << endl;
  }  
  
  
  
  // Customization of Geant4 VMC
  //
  geant4->ProcessGeantCommand("/mcVerbose/all 1");  
  geant4->ProcessGeantCommand("/mcVerbose/geometryManager 1");  
  geant4->ProcessGeantCommand("/mcVerbose/opGeometryManager 1");  
  geant4->ProcessGeantCommand("/mcTracking/loopVerbose 1");     
  geant4->ProcessGeantCommand("/mcPhysics/rangeCuts 0.01 mm"); 
  // for Geant4 <= 9.4.p03
  //geant4->ProcessGeantCommand("/mcPhysics/selectOpProcess Scintillation");
  //geant4->ProcessGeantCommand("/mcPhysics/setOpProcessActivation false");
  // for Geant4 >= 9.5
  geant4->ProcessGeantCommand("/optics_engine/selectOpProcess Scintillation");
  geant4->ProcessGeantCommand("/optics_engine/setOpProcessUse false");
  geant4->ProcessGeantCommand("/optics_engine/selectOpProcess OpWLS");
  geant4->ProcessGeantCommand("/optics_engine/setOpProcessUse false");
  geant4->ProcessGeantCommand("/optics_engine/selectOpProcess OpMieHG");
  geant4->ProcessGeantCommand("/optics_engine/setOpProcessUse false");
  
  geant4->ProcessGeantCommand("/mcVerbose/composedPhysicsList 2");  
  geant4->ProcessGeantCommand("/mcTracking/skipNeutrino true");
  // geant4->ProcessGeantCommand("/mcDet/setMaxStepInLowDensityMaterials 1 cm");


  //
  //=======================================================================
  // ************* 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


  gMC->SetProcess("DCAY",1);
  gMC->SetProcess("PAIR",1);
  gMC->SetProcess("COMP",1);
  gMC->SetProcess("PHOT",1);
  gMC->SetProcess("PFIS",0);
  gMC->SetProcess("DRAY",0);
  gMC->SetProcess("ANNI",1);
  gMC->SetProcess("BREM",1);
  gMC->SetProcess("MUNU",1);
  gMC->SetProcess("CKOV",1);
  gMC->SetProcess("HADR",1);
  gMC->SetProcess("LOSS",2);
  gMC->SetProcess("MULS",1);
  gMC->SetProcess("RAYL",1);

  Float_t cut = 1.e-3;        // 1MeV cut by default
  Float_t tofmax = 1.e10;

  gMC->SetCut("CUTGAM", cut);
  gMC->SetCut("CUTELE", cut);
  gMC->SetCut("CUTNEU", cut);
  gMC->SetCut("CUTHAD", cut);
  gMC->SetCut("CUTMUO", cut);
  gMC->SetCut("BCUTE",  cut); 
  gMC->SetCut("BCUTM",  cut); 
  gMC->SetCut("DCUTE",  cut); 
  gMC->SetCut("DCUTM",  cut); 
  gMC->SetCut("PPCUTM", cut);
  gMC->SetCut("TOFMAX", tofmax); 




  //======================//
  // Set External decayer //
  //======================//
  TVirtualMCDecayer* decayer = new AliDecayerPythia();
  decayer->SetForceDecay(kAll);
  decayer->Init();
  gMC->SetExternalDecayer(decayer);

  //=========================//
  // Generator Configuration //
  //=========================//
  AliGenerator* gener = 0x0;
  
  if (proc == kPythia6) {
    gener = MbPythia();
  } else if (proc == kPythia6D6T) {
    gener = MbPythiaTuneD6T();
  } else if (proc == kPythia6ATLAS) {
    gener = MbPythiaTuneATLAS();
  } else if (proc == kPythiaPerugia0) {
    gener = MbPythiaTunePerugia0();
  } else if (proc == kPythia6ATLAS_Flat) {
    gener = MbPythiaTuneATLAS_Flat();
  } else if (proc == kPhojet) {
    gener = MbPhojet();
  }
  
  
  //
  //
  // Size of the interaction diamond
  // Longitudinal
  Float_t sigmaz  = 5.4 / TMath::Sqrt(2.); // [cm]
  if (energy == 900)
    //sigmaz  = 10.5 / TMath::Sqrt(2.); // [cm]
    //sigmaz = 3.7;
    if (energy == 7000)
      sigmaz  = 6.3 / TMath::Sqrt(2.); // [cm]
  
  //
  // Transverse

  // beta*
  Float_t betast                  = 10.0;  // beta* [m]
  if (runNumber >= 117048) betast =  2.0;
  if (runNumber >  122375) betast =  3.5;  // starting with fill 1179
  //	
  //
  Float_t eps     = 5.0e-6;            // emittance [m]
  Float_t gamma   = energy / 2.0 / 0.938272;  // relativistic gamma [1]
  Float_t sigmaxy = TMath::Sqrt(eps * betast / gamma) / TMath::Sqrt(2.) * 100.;  // [cm]
  printf("\n \n Diamond size x-y: %10.3e z: %10.3e\n \n", sigmaxy, sigmaz);
    
  gener->SetSigma(sigmaxy, sigmaxy, sigmaz);      // Sigma in (X,Y,Z) (cm) on IP position
  gener->SetVertexSmear(kPerEvent);
  gener->Init();

  printf("\n \n Comment: %s \n \n", comment.Data());


}
Example #3
0
void Config()
{
  cout << "Running g4Config.C ... " << endl;

  // AliRoot setup
  //
  gROOT->LoadMacro("$ALICE_ROOT/test/vmctest/gun/commonConfig.C");
  commonConfig();

  // TPC primary ionization 
  AliTPC* TPC = (AliTPC*)gAlice->GetDetector("TPC");
  if ( ! TPC )
    cerr << "Cannot get TPC detector" << endl;
  else  { 
    cerr << "Setting TPC primary ionization" << endl;
    TPC->SetPrimaryIonisation(); // not used with Geant3
  }  

  // Load Geant4 + Geant4 VMC libraries
  //
  std::string g4libmacro("$G4VMCINSTALL/share/examples/macro/g4libs.C");
  if (gClassTable->GetID("TGeant4") == -1) {
    // Load Geant4 libraries 
    if (!gInterpreter->IsLoaded(g4libmacro.c_str())) {
      gROOT->LoadMacro(g4libmacro.c_str());
      gInterpreter->ProcessLine("g4libs()");
    }
  }    

  // Create Geant4 VMC
  //  
  TGeant4 *geant4 = 0;
  if ( ! gMC ) {
    TG4RunConfiguration* runConfiguration 
      = new TG4RunConfiguration("geomRoot", 
                                "FTFP_BERT_EMV+optical", 
                                "specialCuts+stackPopper+stepLimiter",
                                 true);
//      = new TG4RunConfiguration("geomRootToGeant4",
//                                "FTFP_BERT_EMV+optical", 
//                                "specialCuts+specialControls+stackPopper+stepLimiter",
//                                 true);
      
    geant4 = new TGeant4("TGeant4", 
                         "The Geant4 Monte Carlo : FTFP_BERT_EMV+optical", 
                         runConfiguration);
             // Repeat physics selection in the title; to be removed
             // with new geant4_vmc tag (1.13)            
                         
    cout << "Geant4 has been created." << endl;
  } 
  else {
    cout << "Monte Carlo has been already created." << endl;
  }  

  // Customization of Geant4 VMC
  //

    geant4->ProcessGeantCommand("/mcVerbose/all 1");  
    geant4->ProcessGeantCommand("/mcVerbose/geometryManager 1");  
    geant4->ProcessGeantCommand("/mcVerbose/opGeometryManager 1");  
    geant4->ProcessGeantCommand("/mcTracking/loopVerbose 0");     
    geant4->ProcessGeantCommand("/mcPhysics/rangeCuts 0.01 mm"); 
    geant4->ProcessGeantCommand("/mcTracking/skipNeutrino true");
    geant4->ProcessGeantCommand("/mcDet/setMaxStepInLowDensityMaterials 1 cm");

    // for Geant4 <= 9.4.p03
    //geant4->ProcessGeantCommand("/mcPhysics/selectOpProcess Scintillation");
    //geant4->ProcessGeantCommand("/mcPhysics/setOpProcessActivation false");
    // for Geant4 >= 9.5
    geant4->ProcessGeantCommand("/optics_engine/selectOpProcess Scintillation");
    geant4->ProcessGeantCommand("/optics_engine/setOpProcessUse false");
    geant4->ProcessGeantCommand("/optics_engine/selectOpProcess OpWLS");
    geant4->ProcessGeantCommand("/optics_engine/setOpProcessUse false");
    geant4->ProcessGeantCommand("/optics_engine/selectOpProcess OpMieHG");
    geant4->ProcessGeantCommand("/optics_engine/setOpProcessUse false");
    
    // Activate reading random engine status from a file
    gAlice->GetMCApp()->SetReadRndmStatus(kTRUE);
    gAlice->GetMCApp()->SetRndmFileName("randomEvt4.root");
    geant4->ProcessGeantCommand("/mcRun/readRandom true");
    geant4->ProcessGeantCommand("/mcRun/setRandomFile run0evt4.rndm");

  // Uncomment this line to get a detail info from each step 
  geant4->ProcessGeantCommand("/tracking/verbose 1");  
  
  // More info from the physics list
  // the verbosity level is passed to all contained physics lists and their
  // physics builders
  //geant4->ProcessGeantCommand("/mcVerbose/composedPhysicsList 2");  
  
  // More info from optical processes
  //geant4->ProcessGeantCommand("/mcVerbose/opticalPhysicsList 3");  
  
  // More info from geometry building
  //geant4->ProcessGeantCommand("/mcVerbose/geometryManager 1");  

  // More info from setting geometry properties (in materials and surfaces)
  // for optical physics
  //geant4->ProcessGeantCommand("/mcVerbose/opGeometryManager 1");  
  
  // More info about regions construction 
  // and conversion of VMC cuts in cuts in range per regions 
  // geant4->ProcessGeantCommand("/mcVerbose/regionsManager 2");
  // geant4->ProcessGeantCommand("/mcRegions/print true");
  
  // Suppress verbose info from tracks which reached maximum number of steps
  // (default value is 30000)  
  //geant4->ProcessGeantCommand("/mcTracking/loopVerbose 0"); 
    
  //
  // Set apply cuts 
/*
  geant4->ProcessGeantCommand("/run/particle/applyCuts");  
  // geant4->ProcessGeantCommand("/mcVerbose/geometryManager 2");  

  geant4->ProcessGeantCommand("/mcVerbose/composedPhysicsList 2");  
  geant4->ProcessGeantCommand("/mcDet/volNameSeparator !");
  geant4->ProcessGeantCommand("/mcPhysics/setStackPopperSelection e+ e- pi+ pi- kaon+ kaon- gamma");
  //geant4->ProcessGeantCommand("/tracking/verbose 1");  

  geant4->ProcessGeantCommand("/mcControl/g3Defaults");
!!!!n Generates warnings:
>>> Event 0
G4ProcessTable::Insert : arguments are 0 pointer 
G4ProcessTable::Insert : arguments are 0 pointer 
G4ProcessTable::Insert : arguments are 0 pointer 
G4ProcessTable::Insert : arguments are 0 pointer 
G4ProcessTable::Insert : arguments are 0 pointer 

*/

  // AliRoot event generator
  // (it has to be created after MC, as it may use decayer via VMC)
  //
  gROOT->LoadMacro("$ALICE_ROOT/test/vmctest/gun/genExtFileConfig.C");
  genExtFileConfig(4);

  cout << "Running g4Config.C finished ... " << endl;
}
Example #4
0
void Config()
{
    // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
    // Theta range given through pseudorapidity limits 22/6/2001

    // Set Random Number seed
  //gRandom->SetSeed(123456); // Set 0 to use the current time
  
  AliLog::Message(AliLog::kInfo, Form("Seed for random number generation = %d",gRandom->GetSeed()), "Config.C", "Config.C", "Config()","Config.C", __LINE__);

  // Load Pythia libraries
  LoadPythia();
  // Libraries required by geant321
  Bool_t isFluka = kTRUE;
    if (isFluka) {
      gSystem->Load("libGeom");
      cout << "\t* Loading TFluka..." << endl;  
      gSystem->Load("libfluka");    
      
      cout << "\t* Instantiating TFluka..." << endl;
      new  TFluka("C++ Interface to Fluka", 0/*verbositylevel*/);
    }
    else {
      cout << "\t* Loading Geant3..." << endl;  
      gSystem->Load("libgeant321");
      
      cout << "\t* Instantiating Geant3TGeo..." << endl;
      new     TGeant3TGeo("C++ Interface to Geant3");
    }
    AliRunLoader* rl=0x0;

    AliLog::Message(AliLog::kInfo, "Creating Run Loader", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);

    rl = AliRunLoader::Open("galice.root",
			    AliConfig::GetDefaultEventFolderName(),
			    "recreate");
    if (rl == 0x0)
      {
	gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
	return;
      }
    rl->SetCompressionLevel(2);
    rl->SetNumberOfEventsPerFile(3);
    gAlice->SetRunLoader(rl);
    
    // gAlice->SetGeometryFromFile("geometry.root");

    // Uncomment if you want to load geometry from OCDB!   >>>>
/*    
    if(!AliCDBManager::Instance()->IsDefaultStorageSet()){
	 cout << "#####################################################" << endl;
	 cout << "#                                                   #" << endl;
	 cout << "#     WARNING: CDB DEFAULT STORAGE NOT SET !!!      #" << endl;
	 cout << "#     SETTING IT TO local://$ALICE_ROOT/OCDB !!!         #" << endl;
	 cout << "#                                                   #" << endl;
	 cout << "#####################################################" << endl;
          
         AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT/OCDB");
    }
    
    if(AliCDBManager::Instance()->GetRun() < 0){
	 cout << "#####################################################" << endl;
	 cout << "#                                                   #" << endl;
	 cout << "#     WARNING: RUN NUMBER NOT SET !!!               #" << endl;
	 cout << "#     SETTING IT TO 0 !!!                           #" << endl;
	 cout << "#                                                   #" << endl;
	 cout << "#####################################################" << endl;
          
         AliCDBManager::Instance()->SetRun(0);
    }
    gAlice->SetGeometryFromCDB();
*/
    // Uncomment if you want to load geometry from OCDB!   <<<<

    // Set the trigger configuration
    AliSimulation::Instance()->SetTriggerConfig("Pb-Pb");
    cout<<"Trigger configuration is set to  Pb-Pb"<<endl;

    //
    // Set External decayer
    TVirtualMCDecayer *decayer = new AliDecayerPythia();

    decayer->SetForceDecay(kAll);
    decayer->Init();
    gMC->SetExternalDecayer(decayer);
    //=======================================================================
    // ************* 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


    gMC->SetProcess("DCAY",1);
    gMC->SetProcess("PAIR",1);
    gMC->SetProcess("COMP",1);
    gMC->SetProcess("PHOT",1);
    gMC->SetProcess("PFIS",0);
    gMC->SetProcess("DRAY",0);
    gMC->SetProcess("ANNI",1);
    gMC->SetProcess("BREM",1);
    gMC->SetProcess("MUNU",1);
    gMC->SetProcess("CKOV",1);
    gMC->SetProcess("HADR",1);
    gMC->SetProcess("LOSS",2);
    gMC->SetProcess("MULS",1);
    gMC->SetProcess("RAYL",1);

    Float_t cut = 1.e-3;        // 1MeV cut by default
    Float_t tofmax = 1.e10;

    gMC->SetCut("CUTGAM", cut);
    gMC->SetCut("CUTELE", cut);
    gMC->SetCut("CUTNEU", cut);
    gMC->SetCut("CUTHAD", cut);
    gMC->SetCut("CUTMUO", cut);
    gMC->SetCut("BCUTE",  cut); 
    gMC->SetCut("BCUTM",  cut); 
    gMC->SetCut("DCUTE",  cut); 
    gMC->SetCut("DCUTM",  cut); 
    gMC->SetCut("PPCUTM", cut);
    gMC->SetCut("TOFMAX", tofmax); 


    int     nParticles = 100;
    if (gSystem->Getenv("CONFIG_NPARTICLES"))
    {
        nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
    }

    AliGenCocktail *gener = new AliGenCocktail();
    gener->SetPhiRange(0, 360);
    // Set pseudorapidity range from -8 to 8.
    Float_t thmin = EtaToTheta(8);   // theta min. <---> eta max
    Float_t thmax = EtaToTheta(-8);  // theta max. <---> eta min 
    gener->SetThetaRange(thmin,thmax);
    gener->SetOrigin(0, 0, 0);  //vertex position
    gener->SetSigma(0, 0, 0);   //Sigma in (X,Y,Z) (cm) on IP position

    AliGenHIJINGpara *hijingparam = new AliGenHIJINGpara(nParticles);
    hijingparam->SetMomentumRange(0.2, 999);
    gener->AddGenerator(hijingparam,"HIJING PARAM",1);

//    AliGenBox *genbox = new AliGenBox(nParticles);
//    genbox->SetPart(kGamma);
//    genbox->SetPtRange(0.3, 10.00);
//    gener->AddGenerator(genbox,"GENBOX GAMMA for PHOS",1);
    gener->Init();


    // 
    // Activate this line if you want the vertex smearing to happen
    // track by track
    //
    //gener->SetVertexSmear(perTrack); 
    // Field (L3 0.4 T)
    TGeoGlobalMagField::Instance()->SetField(new AliMagF("Maps","Maps", -1., -1., AliMagF::k5kG));

    Int_t   iABSO   = 1;
    Int_t   iDIPO   = 1;
    Int_t   iFMD    = 1;
    Int_t   iFRAME  = 1;
    Int_t   iHALL   = 1;
    Int_t   iITS    = 1;
    Int_t   iMAG    = 1;
    Int_t   iMUON   = 1;
    Int_t   iPHOS   = 1;
    Int_t   iPIPE   = 1;
    Int_t   iPMD    = 1;
    Int_t   iHMPID  = 1;
    Int_t   iSHIL   = 1;
    Int_t   iT0     = 1;
    Int_t   iTOF    = 1;
    Int_t   iTPC    = 1;
    Int_t   iTRD    = 1;
    Int_t   iZDC    = 1;
    Int_t   iEMCAL  = 1;
    Int_t   iACORDE = 1;
    Int_t   iVZERO  = 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 AliABSOv3("ABSO", "Muon Absorber");
    }

    if (iDIPO)
    {
        //=================== DIPO parameters ============================

        AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
    }

    if (iHALL)
    {
        //=================== HALL parameters ============================

        AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
    }


    if (iFRAME)
    {
        //=================== FRAME parameters ============================

        AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
	FRAME->SetHoles(1);
    }

    if (iSHIL)
    {
        //=================== SHIL parameters ============================

        AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
    }


    if (iPIPE)
    {
        //=================== PIPE parameters ============================

        AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
    }
 
    if (iITS)
    {
        //=================== ITS parameters ============================

	AliITS *ITS  = new AliITSv11("ITS","ITS v11");
    }

    if (iTPC)
    {
        //============================ TPC parameters ===================
        AliTPC *TPC = new AliTPCv2("TPC", "Default");
	TPC->SetPrimaryIonisation();
    }


    if (iTOF) {
        //=================== TOF parameters ============================
	AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
    }


    if (iHMPID)
    {
        //=================== HMPID parameters ===========================
        AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");

    }


    if (iZDC)
    {
        //=================== ZDC parameters ============================

        AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
    }

    if (iTRD)
    {
        //=================== TRD parameters ============================

        AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
    }

    if (iFMD)
    {
        //=================== FMD parameters ============================
	AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
   }

    if (iMUON)
    {
        //=================== MUON parameters ===========================
        // New MUONv1 version (geometry defined via builders)
        AliMUON *MUON = new AliMUONv1("MUON", "default");
    }
    //=================== PHOS parameters ===========================

    if (iPHOS)
    {
        AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
    }


    if (iPMD)
    {
        //=================== PMD parameters ============================
        AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
    }

    if (iT0)
    {
        //=================== T0 parameters ============================
        AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
    }

    if (iEMCAL)
    {
        //=================== EMCAL parameters ============================
        AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE");
    }

     if (iACORDE)
    {
        //=================== ACORDE parameters ============================
        AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
    }

     if (iVZERO)
    {
        //=================== VZERO parameters ============================
        AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
    }

     AliLog::Message(AliLog::kInfo, "End of Config", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);

}