TrackingAction.cc

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//
// This example is provided by the Geant4-DNA collaboration
// Any report or published results obtained using the Geant4-DNA software 
// shall cite the following Geant4-DNA collaboration publications:
// Med. Phys. 37 (2010) 4692-4708
// Phys. Med. 31 (2015) 861-874
// The Geant4-DNA web site is available at http://geant4-dna.org
//

#include "TrackingAction.hh"
#include "Run.hh"
#include "HistoManager.hh"
#include "MyFile.hh"

#ifdef MYFILE
 #include "MyPrimaryGeneratorActionFromFile.hh"
#else
 #include "PrimaryGeneratorAction.hh"
#endif

#include "G4RunManager.hh"
#include "G4Gamma.hh"
#include "G4Electron.hh"

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#ifdef MYFILE

TrackingAction::TrackingAction(MyPrimaryGeneratorActionFromFile* prim)
:G4UserTrackingAction(),
 fPrimary(prim)
{}

#else

TrackingAction::TrackingAction(PrimaryGeneratorAction* prim)
:G4UserTrackingAction(),
 fPrimary(prim)
{}

#endif

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void TrackingAction::PreUserTrackingAction(const G4Track* aTrack )
{
 // histograms (useful for radionuclide spectrum, if set is vacuum)
 //
 G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
 if (aTrack->GetDefinition()==G4Electron::ElectronDefinition())
 {
   analysisManager->FillH1(0, aTrack->GetKineticEnergy());
   analysisManager->FillH1(1, aTrack->GetKineticEnergy());
 }
 if (aTrack->GetDefinition()==G4Gamma::GammaDefinition())
 {
   analysisManager->FillH1(2, aTrack->GetKineticEnergy());
   analysisManager->FillH1(3, aTrack->GetKineticEnergy());
 }
}

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void TrackingAction::PostUserTrackingAction(const G4Track* track)
{
 // histograms
 //
 G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
 
 G4int trackID = track->GetTrackID();
 
 Run* run
   = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
         
 //track length of primary particle or charged secondaries
 //
 G4double tracklen = track->GetTrackLength();
 if (trackID == 1) {
    run->AddTrackLength(tracklen);
    analysisManager->FillH1(7, tracklen);
 } else if (track->GetDefinition()->GetPDGCharge() != 0.)
    analysisManager->FillH1(10, tracklen);
           
 //extract projected range of primary particle
 //
 if (trackID == 1) {
   G4double pr = (track->GetPosition())*
                 (fPrimary->GetParticleGun()->GetParticleMomentumDirection());
   run->AddProjRange(pr);
   analysisManager->FillH1(9, pr);
 }
            
 //mean step size of primary particle
 //
 if (trackID == 1) {
   G4int nbOfSteps = track->GetCurrentStepNumber();
   G4double stepSize = tracklen/nbOfSteps;
   run->AddStepSize(nbOfSteps,stepSize);
 }
}