TestEm11/src/SteppingAction.cc

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0026 /// \file electromagnetic/TestEm11/src/SteppingAction.cc
0027 /// \brief Implementation of the SteppingAction class
0028 //
0029 //
0030 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0031 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0032
0033 #include "SteppingAction.hh"
0034
0035 #include "DetectorConstruction.hh"
0036 #include "EventAction.hh"
0037 #include "HistoManager.hh"
0038 #include "Run.hh"
0039
0040 #include "G4RunManager.hh"
0041 #include "G4SteppingManager.hh"
0042 #include "Randomize.hh"
0043
0044 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0045
0046 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* event)
0047   : fDetector(det), fEventAction(event)
0048 {}
0049
0050 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0051
0052 void SteppingAction::UserSteppingAction(const G4Step* step)
0053 {
0054   G4double edep = step->GetTotalEnergyDeposit();
0055   if (edep <= 0.) return;
0056
0057   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
0058
0059   // longitudinal profile of deposited energy
0060   // randomize point of energy deposotion
0061   //
0062   G4StepPoint* prePoint = step->GetPreStepPoint();
0063   G4StepPoint* postPoint = step->GetPostStepPoint();
0064   G4ThreeVector P1 = prePoint->GetPosition();
0065   G4ThreeVector P2 = postPoint->GetPosition();
0066   G4ThreeVector point = P1 + G4UniformRand() * (P2 - P1);
0067   if (step->GetTrack()->GetDefinition()->GetPDGCharge() == 0.) point = P2;
0068   G4double x = point.x();
0069   G4double xshifted = x + 0.5 * fDetector->GetAbsorSizeX();
0070   analysisManager->FillH1(1, xshifted, edep);
0071
0072   //"normalized" histogram
0073   //
0074   Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
0075   G4int iabs = prePoint->GetTouchableHandle()->GetCopyNumber(1);
0076   G4double csdaRange = run->GetCsdaRange(iabs);
0077   if (csdaRange > 0.) {
0078     G4double density = fDetector->GetAbsorMaterial(iabs)->GetDensity();
0079     G4double xfront = fDetector->GetXfront(iabs);
0080     G4double xfrontNorm = run->GetXfrontNorm(iabs);
0081     G4double xnorm = xfrontNorm + (x - xfront) / csdaRange;
0082     analysisManager->FillH1(8, xnorm, edep / (csdaRange * density));
0083   }
0084
0085   // total energy deposit in absorber
0086   //
0087   fEventAction->AddEdep(iabs, edep);
0088
0089   // step size of primary particle or charged secondaries
0090   //
0091   G4double steplen = step->GetStepLength();
0092   const G4Track* track = step->GetTrack();
0093   if (track->GetTrackID() == 1)
0094     analysisManager->FillH1(4, steplen);
0095   else if (track->GetDefinition()->GetPDGCharge() != 0.)
0096     analysisManager->FillH1(7, steplen);
0097 }
0098
0099 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......