Pol01/src/SteppingAction.cc

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0026 /// \file polarisation/Pol01/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 "PrimaryGeneratorAction.hh"
0037 #include "RunAction.hh"
0038
0039 #include "G4PolarizationHelper.hh"
0040 #include "G4RunManager.hh"
0041
0042 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0043
0044 SteppingAction::SteppingAction(DetectorConstruction* det, PrimaryGeneratorAction* prim,
0045                                RunAction* ruAct)
0046   : G4UserSteppingAction(), fDetector(det), fPrimary(prim), fRunAction(ruAct)
0047 {}
0048
0049 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0050
0051 SteppingAction::~SteppingAction() {}
0052
0053 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0054
0055 void SteppingAction::UserSteppingAction(const G4Step* aStep)
0056 {
0057   G4StepPoint* prePoint = aStep->GetPreStepPoint();
0058   G4StepPoint* endPoint = aStep->GetPostStepPoint();
0059
0060   G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName();
0061   fRunAction->CountProcesses(procName);
0062
0063   if (prePoint->GetTouchableHandle()->GetVolume() == fDetector->GetBox()
0064       && endPoint->GetTouchableHandle()->GetVolume() == fDetector->GetWorld())
0065   {
0066     G4Track* aTrack = aStep->GetTrack();
0067     const G4ParticleDefinition* part = aTrack->GetDynamicParticle()->GetDefinition();
0068     //    G4cout<<"a "<<particleName<<" left the Box \n";
0069     G4ThreeVector position = endPoint->GetPosition();
0070     G4ThreeVector direction = endPoint->GetMomentumDirection();
0071     G4double kinEnergy = endPoint->GetKineticEnergy();
0072
0073     G4ThreeVector beamDirection = fPrimary->GetParticleGun()->GetParticleMomentumDirection();
0074     G4double polZ = endPoint->GetPolarization().z();
0075
0076     G4double costheta = direction * beamDirection;
0077
0078     G4double xdir = direction * G4PolarizationHelper::GetParticleFrameX(beamDirection);
0079     G4double ydir = direction * G4PolarizationHelper::GetParticleFrameY(beamDirection);
0080
0081     G4double phi = std::atan2(ydir, xdir);
0082     fRunAction->FillData(part, kinEnergy, costheta, phi, polZ);
0083   }
0084 }
0085
0086 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......