fanoCavity2/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 "HistoManager.hh"
0033 #include "Run.hh"
0034 #include "TrackingAction.hh"
0035
0036 #include "G4Gamma.hh"
0037 #include "G4RunManager.hh"
0038 #include "G4SteppingManager.hh"
0039 #include "G4UnitsTable.hh"
0040
0041 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0042
0043 SteppingAction::SteppingAction(DetectorConstruction* det, TrackingAction* TrAct)
0044   : fDetector(det), fTrackAction(TrAct), fWall(0), fCavity(0)
0045 {
0046   first = true;
0047   fTrackSegm = 0.;
0048   fDirectionIn = G4ThreeVector(0., 0., 0.);
0049 }
0050
0051 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0052
0053 SteppingAction::~SteppingAction() {}
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 void SteppingAction::UserSteppingAction(const G4Step* step)
0058 {
0059   // get fDetector pointers
0060   if (first) {
0061     fWall = fDetector->GetWall();
0062     fCavity = fDetector->GetCavity();
0063     first = false;
0064   }
0065
0066   Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
0067
0068   // histograms
0069   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
0070
0071   // get volume
0072   //
0073   G4StepPoint* point1 = step->GetPreStepPoint();
0074   G4VPhysicalVolume* volume = point1->GetTouchableHandle()->GetVolume();
0075
0076   // count processes
0077   //
0078   G4StepPoint* point2 = step->GetPostStepPoint();
0079   const G4VProcess* process = point2->GetProcessDefinedStep();
0080   if (process) run->CountProcesses(process->GetProcessName());
0081
0082   // energy deposit in fCavity
0083   //
0084   if (volume == fCavity) {
0085     G4double edep = step->GetTotalEnergyDeposit();
0086     if (edep > 0.) fTrackAction->AddEdepCavity(edep);
0087   }
0088
0089   // keep only charged particles
0090   //
0091   if (step->GetTrack()->GetDefinition() == G4Gamma::Gamma()) return;
0092
0093   // step size of charged particles
0094   //
0095   G4int id;
0096   G4double steplen = step->GetStepLength();
0097   if (volume == fWall) {
0098     run->StepInWall(steplen);
0099     id = 9;
0100   }
0101   else {
0102     run->StepInCavity(steplen);
0103     id = 10;
0104   }
0105   analysisManager->FillH1(id, steplen);
0106
0107   // last step before hitting the fCavity
0108   //
0109   if ((volume == fWall) && (point2->GetStepStatus() == fGeomBoundary)) {
0110     fDirectionIn = point1->GetMomentumDirection();
0111   }
0112
0113   // keep only charged particles within fCavity
0114   //
0115   if (volume == fWall) return;
0116
0117   G4double ekin1 = point1->GetKineticEnergy();
0118   G4double ekin2 = point2->GetKineticEnergy();
0119
0120   // first step in cavity
0121   //
0122   if (point1->GetStepStatus() == fGeomBoundary) {
0123     fTrackSegm = 0.;
0124     G4ThreeVector vertex = step->GetTrack()->GetVertexPosition();
0125     analysisManager->FillH1(4, vertex.z());
0126     run->FlowInCavity(0, ekin1);
0127     analysisManager->FillH1(5, ekin1);
0128     if (steplen > 0.) {
0129       G4ThreeVector directionOut = (point2->GetPosition() - point1->GetPosition()).unit();
0130       G4ThreeVector normal =
0131         point1->GetTouchableHandle()->GetSolid()->SurfaceNormal(point1->GetPosition());
0132       analysisManager->FillH1(6, std::acos(-fDirectionIn * normal));
0133       analysisManager->FillH1(7, std::acos(-directionOut * normal));
0134     }
0135   }
0136
0137   // within cavity
0138   //
0139   if (step->GetTrack()->GetCurrentStepNumber() == 1) fTrackSegm = 0.;
0140   fTrackSegm += steplen;
0141   if (ekin2 <= 0.) {
0142     run->AddTrakCavity(fTrackSegm);
0143     analysisManager->FillH1(8, fTrackSegm);
0144   }
0145
0146   // exit cavity
0147   //
0148   if (point2->GetStepStatus() == fGeomBoundary) {
0149     run->FlowInCavity(1, ekin2);
0150     run->AddTrakCavity(fTrackSegm);
0151     analysisManager->FillH1(8, fTrackSegm);
0152   }
0153 }
0154
0155 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......