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Geant4/examples/extended/electromagnetic/TestEm11/src/SteppingAction.cc

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 25 //
 26 /// \file electromagnetic/TestEm11/src/SteppingAction.cc
 27 /// \brief Implementation of the SteppingAction class
 28 //
 29 //
 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 32 
 33 #include "SteppingAction.hh"
 34 
 35 #include "DetectorConstruction.hh"
 36 #include "EventAction.hh"
 37 #include "HistoManager.hh"
 38 #include "Run.hh"
 39 
 40 #include "G4RunManager.hh"
 41 #include "G4SteppingManager.hh"
 42 #include "Randomize.hh"
 43 
 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 45 
 46 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* event)
 47   : fDetector(det), fEventAction(event)
 48 {}
 49 
 50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 51 
 52 void SteppingAction::UserSteppingAction(const G4Step* step)
 53 {
 54   G4double edep = step->GetTotalEnergyDeposit();
 55   if (edep <= 0.) return;
 56 
 57   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
 58 
 59   // longitudinal profile of deposited energy
 60   // randomize point of energy deposotion
 61   //
 62   G4StepPoint* prePoint = step->GetPreStepPoint();
 63   G4StepPoint* postPoint = step->GetPostStepPoint();
 64   G4ThreeVector P1 = prePoint->GetPosition();
 65   G4ThreeVector P2 = postPoint->GetPosition();
 66   G4ThreeVector point = P1 + G4UniformRand() * (P2 - P1);
 67   if (step->GetTrack()->GetDefinition()->GetPDGCharge() == 0.) point = P2;
 68   G4double x = point.x();
 69   G4double xshifted = x + 0.5 * fDetector->GetAbsorSizeX();
 70   analysisManager->FillH1(1, xshifted, edep);
 71 
 72   //"normalized" histogram
 73   //
 74   Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
 75   G4int iabs = prePoint->GetTouchableHandle()->GetCopyNumber(1);
 76   G4double csdaRange = run->GetCsdaRange(iabs);
 77   if (csdaRange > 0.) {
 78     G4double density = fDetector->GetAbsorMaterial(iabs)->GetDensity();
 79     G4double xfront = fDetector->GetXfront(iabs);
 80     G4double xfrontNorm = run->GetXfrontNorm(iabs);
 81     G4double xnorm = xfrontNorm + (x - xfront) / csdaRange;
 82     analysisManager->FillH1(8, xnorm, edep / (csdaRange * density));
 83   }
 84 
 85   // total energy deposit in absorber
 86   //
 87   fEventAction->AddEdep(iabs, edep);
 88 
 89   // step size of primary particle or charged secondaries
 90   //
 91   G4double steplen = step->GetStepLength();
 92   const G4Track* track = step->GetTrack();
 93   if (track->GetTrackID() == 1)
 94     analysisManager->FillH1(4, steplen);
 95   else if (track->GetDefinition()->GetPDGCharge() != 0.)
 96     analysisManager->FillH1(7, steplen);
 97 }
 98 
 99 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
100