TestEm11/src/SteppingAction.cc

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0025 //
0026 /// \file SteppingAction.cc
0027 /// \brief Implementation of the SteppingAction class
0028
0029 #include "SteppingAction.hh"
0030
0031 #include "DetectorConstruction.hh"
0032 #include "EventAction.hh"
0033 #include "HistoManager.hh"
0034 #include "Run.hh"
0035
0036 #include "G4RunManager.hh"
0037 #include "G4SteppingManager.hh"
0038 #include "Randomize.hh"
0039
0040 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0041
0042 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* event)
0043   : fDetector(det), fEventAction(event)
0044 {}
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 void SteppingAction::UserSteppingAction(const G4Step* step)
0049 {
0050   G4double edep = step->GetTotalEnergyDeposit();
0051   if (edep <= 0.) return;
0052
0053   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
0054
0055   // longitudinal profile of deposited energy
0056   // randomize point of energy deposotion
0057   //
0058   G4StepPoint* prePoint = step->GetPreStepPoint();
0059   G4StepPoint* postPoint = step->GetPostStepPoint();
0060   G4ThreeVector P1 = prePoint->GetPosition();
0061   G4ThreeVector P2 = postPoint->GetPosition();
0062   G4ThreeVector point = P1 + G4UniformRand() * (P2 - P1);
0063   if (step->GetTrack()->GetDefinition()->GetPDGCharge() == 0.) point = P2;
0064   G4double x = point.x();
0065   G4double xshifted = x + 0.5 * fDetector->GetAbsorSizeX();
0066   analysisManager->FillH1(1, xshifted, edep);
0067
0068   //"normalized" histogram
0069   //
0070   Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
0071   G4int iabs = prePoint->GetTouchableHandle()->GetCopyNumber(1);
0072   G4double csdaRange = run->GetCsdaRange(iabs);
0073   if (csdaRange > 0.) {
0074     G4double density = fDetector->GetAbsorMaterial(iabs)->GetDensity();
0075     G4double xfront = fDetector->GetXfront(iabs);
0076     G4double xfrontNorm = run->GetXfrontNorm(iabs);
0077     G4double xnorm = xfrontNorm + (x - xfront) / csdaRange;
0078     analysisManager->FillH1(8, xnorm, edep / (csdaRange * density));
0079   }
0080
0081   // total energy deposit in absorber
0082   //
0083   fEventAction->AddEdep(iabs, edep);
0084
0085   // step size of primary particle or charged secondaries
0086   //
0087   G4double steplen = step->GetStepLength();
0088   const G4Track* track = step->GetTrack();
0089   if (track->GetTrackID() == 1)
0090     analysisManager->FillH1(4, steplen);
0091   else if (track->GetDefinition()->GetPDGCharge() != 0.)
0092     analysisManager->FillH1(7, steplen);
0093 }
0094
0095 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......