Geant4 Cross Reference

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Geant4/examples/extended/polarisation/Pol01/src/SteppingAction.cc

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 25 //
 26 /// \file polarisation/Pol01/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 "PrimaryGeneratorAction.hh"
 37 #include "RunAction.hh"
 38 
 39 #include "G4PolarizationHelper.hh"
 40 #include "G4RunManager.hh"
 41 
 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 43 
 44 SteppingAction::SteppingAction(DetectorConstruction* det, PrimaryGeneratorAction* prim,
 45                                RunAction* ruAct)
 46   : G4UserSteppingAction(), fDetector(det), fPrimary(prim), fRunAction(ruAct)
 47 {}
 48 
 49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 50 
 51 SteppingAction::~SteppingAction() {}
 52 
 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 54 
 55 void SteppingAction::UserSteppingAction(const G4Step* aStep)
 56 {
 57   G4StepPoint* prePoint = aStep->GetPreStepPoint();
 58   G4StepPoint* endPoint = aStep->GetPostStepPoint();
 59 
 60   G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName();
 61   fRunAction->CountProcesses(procName);
 62 
 63   if (prePoint->GetTouchableHandle()->GetVolume() == fDetector->GetBox()
 64       && endPoint->GetTouchableHandle()->GetVolume() == fDetector->GetWorld())
 65   {
 66     G4Track* aTrack = aStep->GetTrack();
 67     const G4ParticleDefinition* part = aTrack->GetDynamicParticle()->GetDefinition();
 68     //    G4cout<<"a "<<particleName<<" left the Box \n";
 69     G4ThreeVector position = endPoint->GetPosition();
 70     G4ThreeVector direction = endPoint->GetMomentumDirection();
 71     G4double kinEnergy = endPoint->GetKineticEnergy();
 72 
 73     G4ThreeVector beamDirection = fPrimary->GetParticleGun()->GetParticleMomentumDirection();
 74     G4double polZ = endPoint->GetPolarization().z();
 75 
 76     G4double costheta = direction * beamDirection;
 77 
 78     G4double xdir = direction * G4PolarizationHelper::GetParticleFrameX(beamDirection);
 79     G4double ydir = direction * G4PolarizationHelper::GetParticleFrameY(beamDirection);
 80 
 81     G4double phi = std::atan2(ydir, xdir);
 82     fRunAction->FillData(part, kinEnergy, costheta, phi, polZ);
 83   }
 84 }
 85 
 86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 87