nDa.cc

// Based on template provided by G4 example B2a.
// Adapted and developed by Vitor Jose Shen
// at department of physics, Tsinghua University.
// This simulation program "nDa" stands for:
// Simulation of "neutron (liquid scintillation) Detector array"
// 06 Apr 2021
//
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//
/// \file nDa.cc
/// \brief Main program of the nDetection

#include "nDaDetectorConstruction.hh"
#include "nDaActionInitialization.hh"

#ifdef G4MULTITHREADED
#include "G4MTRunManager.hh"
#else
#include "G4RunManager.hh"
#endif

#include "G4UImanager.hh"
#include "FTFP_BERT.hh"

#include "FTFP_BERT_HP.hh" //added
#include "QGSP_BERT_HP.hh" //added
#include "QGSP_BIC_HP.hh"  //added
#include "Shielding.hh"    //added

#include "G4StepLimiterPhysics.hh"

#include "Randomize.hh"

#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

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int main(int argc,char** argv)
{
  // Detect interactive mode (if no arguments) and define UI session
  //
  G4UIExecutive* ui = 0;
  if ( argc == 1 ) {
    ui = new G4UIExecutive(argc, argv);
  }

  // Optionally: choose a different Random engine...
  // G4Random::setTheEngine(new CLHEP::MTwistEngine);

  // Construct the default run manager
  //
#ifdef G4MULTITHREADED  
  G4MTRunManager* runManager = new G4MTRunManager;
#else
  G4RunManager* runManager = new G4RunManager;
#endif

  // Set mandatory initialization classes
  //
  runManager->SetUserInitialization(new nDaDetectorConstruction());

  // Directly utilize reference physics list
  // "_HP family" for precise low energy (<=20MeV) neutron transport simulation

  //G4VModularPhysicsList* physicsList = new FTFP_BERT;
  //G4VModularPhysicsList* physicsList = new FTFP_BERT_HP;
  //G4VModularPhysicsList* physicsList = new QGSP_BERT_HP;
  //G4VModularPhysicsList* physicsList = new QGSP_BIC_HP;
  G4VModularPhysicsList* physicsList = new Shielding;

  physicsList->RegisterPhysics(new G4StepLimiterPhysics());
  runManager->SetUserInitialization(physicsList);
    
  // Set user action classes
  runManager->SetUserInitialization(new nDaActionInitialization());
  
  // Initialize visualization
  //
  G4VisManager* visManager = new G4VisExecutive;
  // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
  // G4VisManager* visManager = new G4VisExecutive("Quiet");
  visManager->Initialize();

  // Get the pointer to the User Interface manager
  G4UImanager* UImanager = G4UImanager::GetUIpointer();

  // Process macro or start UI session
  //
  if ( ! ui ) { 
    // batch mode
    G4String command = "/control/execute ";
    G4String fileName = argv[1];
    UImanager->ApplyCommand(command+fileName);
  }
  else { 
    // interactive mode
    UImanager->ApplyCommand("/control/execute init_vis.mac");
    if (ui->IsGUI()) {
      UImanager->ApplyCommand("/control/execute gui.mac");
    }
    ui->SessionStart();
    delete ui;
  }

  // Job termination
  // Free the store: user actions, physics_list and detector_description are
  // owned and deleted by the run manager, so they should not be deleted
  // in the main() program !
  //
  delete visManager;
  delete runManager;
}

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