TrackingAction.cc

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// $Id: TrackingAction.cc 78723 2014-01-20 10:32:17Z gcosmo $
//
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#include "TrackingAction.hh"

#include "Run.hh"
#include "PrimaryGeneratorAction.hh"
#include "HistoManager.hh"

#include "G4RunManager.hh"

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

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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(3, tracklen);
 } else if (track->GetDefinition()->GetPDGCharge() != 0.)
    analysisManager->FillH1(6, tracklen);
           
 //extract projected range of primary particle
 //
 if (trackID == 1) {
   G4double pr = (track->GetPosition())*
                 (fPrimary->GetParticleGun()->GetParticleMomentumDirection());
   run->AddProjRange(pr);
   analysisManager->FillH1(5, pr);
 }
            
 //mean step size of primary particle
 //
 if (trackID == 1) {
   G4int nbOfSteps = track->GetCurrentStepNumber();
   G4double stepSize = tracklen/nbOfSteps;
   run->AddStepSize(nbOfSteps,stepSize);
 }
}

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