field/field01/field01.cc

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0027 /// \file field/field01/field01.cc
0028 /// \brief Main program of the field/field01 example
0029 //
0030 //
0031 //
0032 //
0033 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0034 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0035
0036 #include "F01ActionInitialization.hh"
0037 #include "F01DetectorConstruction.hh"
0038 #include "F01RunAction.hh"
0039 #include "F01SteppingVerbose.hh"
0040
0041 #include "G4RunManagerFactory.hh"
0042 #include "G4Types.hh"
0043 #include "G4UImanager.hh"
0044
0045 // To control verbosity
0046 #include "FTFP_BERT.hh"
0047
0048 #include "G4EmParameters.hh"
0049 #include "G4HadronicParameters.hh"
0050 #include "G4PhysicsListHelper.hh"
0051 #include "G4StepLimiterPhysics.hh"
0052 #include "G4UIExecutive.hh"
0053 #include "G4VisExecutive.hh"
0054 #include "Randomize.hh"
0055
0056 // For Printing statistic from Transporation process(es)
0057 #include "G4CoupledTransportation.hh"
0058 #include "G4Electron.hh"
0059 #include "G4Transportation.hh"
0060 #include "G4TransportationParameters.hh"
0061
0062 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0063
0064 int main(int argc, char** argv)
0065 {
0066   // Instantiate G4UIExecutive if there are no arguments (interactive mode)
0067   G4UIExecutive* ui = nullptr;
0068   if (argc == 1) {
0069     ui = new G4UIExecutive(argc, argv);
0070   }
0071
0072   // Choose the Random engine
0073   //
0074   G4Random::setTheEngine(new CLHEP::RanecuEngine);
0075
0076   G4VSteppingVerbose::SetInstance(new F01SteppingVerbose);
0077
0078   // Construct the sequential (or default) run manager
0079   auto* runManager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::Serial);
0080
0081   // G4TransportationWithMscType: fDisabled, fEnabled, fMultipleSteps
0082   // G4EmParameters::Instance()->SetTransportationWithMsc(G4TransportationWithMscType::fEnabled);
0083
0084   // Set mandatory initialization classes
0085   //
0086   // Detector construction
0087   auto detector = new F01DetectorConstruction();
0088   // detector->SetUseFSALstepper();  // Uncomment to use FSAL steppers
0089
0090   runManager->SetUserInitialization(detector);
0091
0092   // Configure the use of low thresholds for looping particles
0093   //  ( appropriate for typical applications using low-energy physics. )
0094   // auto plHelper = G4PhysicsListHelper::GetPhysicsListHelper();
0095   // plHelper->UseLowLooperThresholds();
0096   // plHelper->UseHighLooperThresholds();
0097   // Request a set of pre-selected values of the parameters for looping
0098   //    particles:
0099   //       - High for collider HEP applications,
0100   //       - Low  for 'low-E' applications, medical, ..
0101   // Note: If helper is used select low or high thresholds , it will overwrite
0102   //       values from TransportationParameters!
0103
0104   // They are currently applied in the following order:
0105   // 1. Transportation Parameters - fine grained control in Transportation construction
0106   // 2. Physics List Helper       - impose a fixed set of new values in Transport classes
0107   // 3. Run Action (F01RunAction) - revise values at Start of Run
0108   // 4. Tracking Action           - could revise value at start of each track (not shown)
0109   //     Note that this also could customise by particle type, e.g. giving different values
0110   //     to mu-/mu+ , e-/e+ vs others)
0111   // If multiple are present, later methods overwrite previous ones in this list.
0112
0113   // Physics list
0114   G4VModularPhysicsList* physicsList = new FTFP_BERT;
0115   physicsList->RegisterPhysics(new G4StepLimiterPhysics());
0116   runManager->SetUserInitialization(physicsList);
0117
0118   // User action initialization
0119   runManager->SetUserInitialization(new F01ActionInitialization(detector));
0120
0121   G4double warningE = 10.0 * CLHEP::keV;
0122   G4double importantE = 0.1 * CLHEP::MeV;
0123   G4int numTrials = 30;
0124
0125   G4bool useTransportParams = true;  // Use the new way - Nov 2022
0126
0127   if (useTransportParams) {
0128     auto transportParams = G4TransportationParameters::Instance();
0129     transportParams->SetWarningEnergy(warningE);
0130     transportParams->SetImportantEnergy(importantE);
0131     transportParams->SetNumberOfTrials(numTrials);
0132     G4cout << "field01: Using G4TransportationParameters to set looper parameters." << G4endl;
0133   }
0134   else {
0135     // Fine grained control of thresholds for looping particles
0136     auto runAction = new F01RunAction();
0137     runAction->SetWarningEnergy(warningE);
0138     // Looping particles with E < 10 keV will be killed after 1 step
0139     //   with warning.
0140     // Looping particles with E > 10 keV will generate a warning.
0141     runAction->SetImportantEnergy(importantE);
0142     runAction->SetNumberOfTrials(numTrials);
0143     // Looping particles with E > 0.1 MeV will survive for up to
0144     //  30 'tracking' steps, and only be killed if they still loop.
0145
0146     G4cout << "field01: Using F01RunAction to set looper parameters." << G4endl;
0147     runManager->SetUserAction(runAction);
0148   }
0149
0150   // Note: this mechanism overwrites the thresholds established by
0151   //       the call to UseLowLooperThresholds() above.
0152
0153   // Suppress large verbosity from EM & hadronic processes
0154   G4EmParameters::Instance()->SetVerbose(0);
0155   G4HadronicParameters::Instance()->SetVerboseLevel(0);
0156
0157   // Initialize G4 kernel
0158   //
0159   runManager->Initialize();
0160
0161   // Initialize visualization
0162   //
0163   // G4VisExecutive can take a verbosity argument - see /vis/verbose
0164   G4VisManager* visManager = new G4VisExecutive("Quiet");
0165   visManager->Initialize();
0166
0167   // Get the pointer to the User Interface manager
0168   //
0169   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0170
0171   if (!ui)  // batch mode
0172   {
0173     G4String command = "/control/execute ";
0174     G4String fileName = argv[1];
0175     UImanager->ApplyCommand(command + fileName);
0176   }
0177   else {  // interactive mode : define UI session
0178     UImanager->ApplyCommand("/control/execute init_vis.mac");
0179     if (ui->IsGUI()) UImanager->ApplyCommand("/control/execute gui.mac");
0180     ui->SessionStart();
0181     delete ui;
0182   }
0183
0184   // Statistics of tracks killed by G4Transportation are currently
0185   //  printed in the RunAction's EndOfEvent action.
0186   // ( Eventually a summary could be provided here instead or as well. )
0187
0188   delete visManager;
0189   delete runManager;
0190
0191   return 0;
0192 }
0193
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