Geant4 LXR

Cross-Referencing   Geant4
Geant4/examples/extended/biasing/GB07/exampleGB07.cc

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  //
  /// \file GB07/exampleGB07.cc
  /// \brief Main program of the GB07 example
  //
  //
  
  #include "FTFP_BERT.hh"
  #include "GB07ActionInitialization.hh"
  #include "GB07DetectorConstruction.hh"
  #include "GB07PrimaryGeneratorAction.hh"
  
  #include "G4GenericBiasingPhysics.hh"
  #include "G4RunManagerFactory.hh"
  #include "G4Types.hh"
  #include "G4UIExecutive.hh"
  #include "G4UImanager.hh"
  #include "G4VisExecutive.hh"
  
  //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
  
  namespace
  {
  void PrintUsage()
  {
    G4cerr << " Usage: " << G4endl;
    G4cerr << " ./exampleGB07 [-m macro ] "
           << " [-b biasing {'on','off'}]"
           << "\n or\n ./exampleGB07 [macro.mac]" << G4endl;
  }
  }  // namespace
  
  //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
  
  int main(int argc, char** argv)
  {
    // Evaluate arguments
    //
    if (argc > 5) {
      PrintUsage();
      return 1;
    }
  
    G4String macro("");
    G4String onOffBiasing("");
    if (argc == 2)
      macro = argv[1];
    else {
      for (G4int i = 1; i < argc; i = i + 2) {
        if (G4String(argv[i]) == "-m")
          macro = argv[i + 1];
        else if (G4String(argv[i]) == "-b")
          onOffBiasing = argv[i + 1];
        else {
          PrintUsage();
          return 1;
        }
      }
    }
  
    if (onOffBiasing == "") onOffBiasing = "on";
  
    // Instantiate G4UIExecutive if interactive mode
    G4UIExecutive* ui = nullptr;
    if (macro == "") {
      ui = new G4UIExecutive(argc, argv);
    }
  
    // -- Construct the run manager : MT or sequential one
    auto* runManager = G4RunManagerFactory::CreateRunManager();
    runManager->SetNumberOfThreads(4);
  
    // -- Set mandatory initialization classes
    GB07DetectorConstruction* detector = new GB07DetectorConstruction();
    runManager->SetUserInitialization(detector);
    // -- Select a physics list
   FTFP_BERT* physicsList = new FTFP_BERT;
   // -- And augment it with biasing facilities:
   G4GenericBiasingPhysics* biasingPhysics = new G4GenericBiasingPhysics();
   if (onOffBiasing == "on") {
     // -- Specify the processes that will be under biasing:
     // ---- Decide to apply the technique to hadronic inelastic interactions:
     std::vector<G4String> piPlusProcessesToBias, piMinusProcessesToBias, protonProcessesToBias,
       antiProtonProcessesToBias, neutronProcessesToBias, antiNeutronProcessesToBias;
     piPlusProcessesToBias.push_back("pi+Inelastic");
     piMinusProcessesToBias.push_back("pi-Inelastic");
     protonProcessesToBias.push_back("protonInelastic");
     antiProtonProcessesToBias.push_back("anti_protonInelastic");
     neutronProcessesToBias.push_back("neutronInelastic");
     neutronProcessesToBias.push_back("nCapture");
     antiNeutronProcessesToBias.push_back("anti_neutronInelastic");
     biasingPhysics->PhysicsBias("pi+", piPlusProcessesToBias);
     biasingPhysics->PhysicsBias("pi-", piMinusProcessesToBias);
     biasingPhysics->PhysicsBias("proton", protonProcessesToBias);
     biasingPhysics->PhysicsBias("anti_proton", antiProtonProcessesToBias);
     biasingPhysics->PhysicsBias("neutron", neutronProcessesToBias);
     biasingPhysics->PhysicsBias("anti_neutron", antiNeutronProcessesToBias);
     // ---- Apply also the technique to some EM processes (producing at least
     // ---- 2 same or 2 particle - anti-particle pairs):
     std::vector<G4String> gammaProcessesToBias, electronProcessesToBias, positronProcessesToBias;
     gammaProcessesToBias.push_back("conv");
     gammaProcessesToBias.push_back("photonNuclear");
     electronProcessesToBias.push_back("electronNuclear");
     positronProcessesToBias.push_back("annihil");
     positronProcessesToBias.push_back("positronNuclear");
     biasingPhysics->PhysicsBias("gamma", gammaProcessesToBias);
     biasingPhysics->PhysicsBias("e-", electronProcessesToBias);
     biasingPhysics->PhysicsBias("e+", positronProcessesToBias);
     // ---- And apply it to pi0 decay:
     std::vector<G4String> pi0ProcessesToBias;
     pi0ProcessesToBias.push_back("Decay");
     biasingPhysics->PhysicsBias("pi0", pi0ProcessesToBias);
     // --
     physicsList->RegisterPhysics(biasingPhysics);
     G4cout << "      ********************************************************* " << G4endl;
     G4cout << "      ********** processes are wrapped for biasing ************ " << G4endl;
     G4cout << "      ********************************************************* " << G4endl;
   }
   else {
     G4cout << "      ************************************************* " << G4endl;
     G4cout << "      ********** processes are not wrapped ************ " << G4endl;
     G4cout << "      ************************************************* " << G4endl;
   }
   runManager->SetUserInitialization(physicsList);
   // -- Action initialization:
   runManager->SetUserInitialization(new GB07ActionInitialization);
 
   // Initialize G4 kernel
   runManager->Initialize();
 
   // Initialize visualization
   G4VisManager* visManager = new G4VisExecutive;
   // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
   visManager->Initialize();
 
   // Get the pointer to the User Interface manager
   G4UImanager* UImanager = G4UImanager::GetUIpointer();
 
   if (macro != "")  // batch mode
   {
     G4String command = "/control/execute ";
     UImanager->ApplyCommand(command + macro);
   }
   else {  // interactive mode : define UI session
     UImanager->ApplyCommand("/control/execute vis.mac");
     //      if (ui->IsGUI())
     //        UImanager->ApplyCommand("/control/execute gui.mac");
     ui->SessionStart();
     delete ui;
   }
 
   delete visManager;
   delete runManager;
 }
 
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