field/field01/field01.cc

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0026 //
0027 /// \file field/field01/field01.cc
0028 /// \brief Main program of the field/field01 example
0029 //
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0032
0033 #include "F01ActionInitialization.hh"
0034 #include "F01DetectorConstruction.hh"
0035 #include "F01RunAction.hh"
0036 #include "F01SteppingVerbose.hh"
0037
0038 #include "G4RunManagerFactory.hh"
0039 #include "G4Types.hh"
0040 #include "G4UImanager.hh"
0041
0042 #include "FTFP_BERT.hh"
0043
0044 #include "G4EmParameters.hh"
0045 #include "G4HadronicParameters.hh"
0046 #include "G4PhysicsListHelper.hh"
0047 #include "G4StepLimiterPhysics.hh"
0048 #include "G4UIExecutive.hh"
0049 #include "G4VisExecutive.hh"
0050 #include "Randomize.hh"
0051
0052 // For Printing statistic from Transporation process(es)
0053 #include "G4CoupledTransportation.hh"
0054 #include "G4Electron.hh"
0055 #include "G4Transportation.hh"
0056 #include "G4TransportationParameters.hh"
0057
0058 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0059
0060 int main(int argc, char** argv)
0061 {
0062   // Instantiate G4UIExecutive if there are no arguments (interactive mode)
0063   //
0064   G4UIExecutive* ui = nullptr;
0065   if (argc == 1) {
0066     ui = new G4UIExecutive(argc, argv);
0067   }
0068
0069   // Setting the application-specific SteppingVerbose
0070   //
0071   auto verbosity = new F01SteppingVerbose;
0072
0073   // Construct the default run manager
0074   auto runManager = G4RunManagerFactory::CreateRunManager();
0075
0076   // G4TransportationWithMscType: fDisabled, fEnabled, fMultipleSteps
0077   // G4EmParameters::Instance()->SetTransportationWithMsc(G4TransportationWithMscType::fEnabled);
0078
0079   // Set mandatory initialization classes
0080   //
0081   // Detector construction
0082   auto detector = new F01DetectorConstruction();
0083   // detector->SetUseFSALstepper();  // Uncomment to use FSAL steppers
0084
0085   runManager->SetUserInitialization(detector);
0086
0087   // Configure the use of low thresholds for looping particles
0088   //  ( appropriate for typical applications using low-energy physics. )
0089   // auto plHelper = G4PhysicsListHelper::GetPhysicsListHelper();
0090   // plHelper->UseLowLooperThresholds();
0091   // plHelper->UseHighLooperThresholds();
0092   // Request a set of pre-selected values of the parameters for looping
0093   //    particles:
0094   //       - High for collider HEP applications,
0095   //       - Low  for 'low-E' applications, medical, ..
0096   // Note: If helper is used select low or high thresholds , it will overwrite
0097   //       values from TransportationParameters!
0098
0099   // They are currently applied in the following order:
0100   // 1. Transportation Parameters - fine grained control in Transportation construction
0101   // 2. Physics List Helper       - impose a fixed set of new values in Transport classes
0102   // 3. Run Action (F01RunAction) - revise values at Start of Run
0103   // 4. Tracking Action           - could revise value at start of each track (not shown)
0104   //     Note that this also could customise by particle type, e.g. giving different values
0105   //     to mu-/mu+ , e-/e+ vs others)
0106   // If multiple are present, later methods overwrite previous ones in this list.
0107
0108   // Physics list
0109   G4VModularPhysicsList* physicsList = new FTFP_BERT;
0110   physicsList->RegisterPhysics(new G4StepLimiterPhysics());
0111   runManager->SetUserInitialization(physicsList);
0112
0113   // User action initialization
0114   runManager->SetUserInitialization(new F01ActionInitialization(detector));
0115
0116   G4double warningE = 10.0 * CLHEP::keV;
0117   G4double importantE = 0.1 * CLHEP::MeV;
0118   G4int numTrials = 30;
0119
0120   G4bool useTransportParams = true;  // Use the new way - Nov 2022
0121
0122   if (useTransportParams) {
0123     auto transportParams = G4TransportationParameters::Instance();
0124     transportParams->SetWarningEnergy(warningE);
0125     transportParams->SetImportantEnergy(importantE);
0126     transportParams->SetNumberOfTrials(numTrials);
0127     G4cout << "field01: Using G4TransportationParameters to set looper parameters." << G4endl;
0128   }
0129   else {
0130     // Fine grained control of thresholds for looping particles
0131     auto runAction = new F01RunAction();
0132     runAction->SetWarningEnergy(warningE);
0133     // Looping particles with E < 10 keV will be killed after 1 step
0134     //   with warning.
0135     // Looping particles with E > 10 keV will generate a warning.
0136     runAction->SetImportantEnergy(importantE);
0137     runAction->SetNumberOfTrials(numTrials);
0138     // Looping particles with E > 0.1 MeV will survive for up to
0139     //  30 'tracking' steps, and only be killed if they still loop.
0140
0141     G4cout << "field01: Using F01RunAction to set looper parameters." << G4endl;
0142     runManager->SetUserAction(runAction);
0143   }
0144
0145   // Note: this mechanism overwrites the thresholds established by
0146   //       the call to UseLowLooperThresholds() above.
0147
0148   // Suppress large verbosity from EM & hadronic processes
0149   G4EmParameters::Instance()->SetVerbose(0);
0150   G4HadronicParameters::Instance()->SetVerboseLevel(0);
0151
0152   // Initialize G4 kernel
0153   //
0154   runManager->Initialize();
0155
0156   // Initialize visualization
0157   //
0158   // G4VisExecutive can take a verbosity argument - see /vis/verbose
0159   G4VisManager* visManager = new G4VisExecutive("Quiet");
0160   visManager->Initialize();
0161
0162   // Get the pointer to the User Interface manager
0163   //
0164   G4UImanager* UImanager = G4UImanager::GetUIpointer();
0165
0166   if (!ui)  // batch mode
0167   {
0168     G4String command = "/control/execute ";
0169     G4String fileName = argv[1];
0170     UImanager->ApplyCommand(command + fileName);
0171   }
0172   else {  // interactive mode : define UI session
0173     UImanager->ApplyCommand("/control/execute init_vis.mac");
0174     if (ui->IsGUI()) UImanager->ApplyCommand("/control/execute gui.mac");
0175     ui->SessionStart();
0176     delete ui;
0177   }
0178
0179   // Statistics of tracks killed by G4Transportation are currently
0180   //  printed in the RunAction's EndOfEvent action.
0181   // ( Eventually a summary could be provided here instead or as well. )
0182
0183   delete verbosity;
0184   delete visManager;
0185   delete runManager;
0186
0187   return 0;
0188 }
0189
0190 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......