saxs/src/SAXSSteppingAction.cc

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0025 //
0026 /// \file SAXSSteppingAction.cc
0027 /// \brief Implementation of the SAXSSteppingAction class
0028
0029 #ifdef G4MULTITHREADED
0030 #  include "G4MTRunManager.hh"
0031 #else
0032 #  include "G4RunManager.hh"
0033 #endif
0034
0035 #include "SAXSDetectorConstruction.hh"
0036 #include "SAXSEventAction.hh"
0037 #include "SAXSSteppingAction.hh"
0038
0039 #include "G4AnalysisManager.hh"
0040 #include "G4Event.hh"
0041 #include "G4EventManager.hh"
0042 #include "G4HCofThisEvent.hh"
0043 #include "G4OpticalPhoton.hh"
0044 #include "G4SDManager.hh"
0045 #include "G4Step.hh"
0046 #include "G4SystemOfUnits.hh"
0047 #include "G4Track.hh"
0048 #include "G4Trajectory.hh"
0049 #include "G4TrajectoryContainer.hh"
0050 #include "G4UImanager.hh"
0051 #include "G4VHitsCollection.hh"
0052 #include "G4VVisManager.hh"
0053 #include "G4ios.hh"
0054
0055 #include <cmath>
0056
0057 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0058
0059 SAXSSteppingAction::SAXSSteppingAction(SAXSEventAction* eventAction)
0060   : G4UserSteppingAction(), fEventAction(eventAction), fPhantom(0), fEventNumber(-1), fNSe(0)
0061 {}
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 SAXSSteppingAction::~SAXSSteppingAction() {}
0066
0067 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0068
0069 void SAXSSteppingAction::UserSteppingAction(const G4Step* step)
0070 {
0071   // DetectorConstruction instance
0072   const SAXSDetectorConstruction* detectorConstruction =
0073     static_cast<const SAXSDetectorConstruction*>(
0074       G4RunManager::GetRunManager()->GetUserDetectorConstruction());
0075
0076   // get Phantom volume
0077   fPhantom = detectorConstruction->GetPhantom();
0078
0079   // get pre and post step points
0080   G4StepPoint* preStepPoint = step->GetPreStepPoint();
0081   G4StepPoint* postStepPoint = step->GetPostStepPoint();
0082
0083   // get the volume of the current step
0084   G4LogicalVolume* volume = preStepPoint->GetTouchableHandle()->GetVolume()->GetLogicalVolume();
0085
0086   // get track and particle name
0087   G4Track* track = step->GetTrack();
0088   G4int ID = track->GetTrackID();
0089   G4String partName = track->GetDefinition()->GetParticleName();
0090
0091   // update the primary particle (event) weight
0092   G4double PrimaryWeight = 1.;
0093   if (partName == "gamma" && ID == 1) {
0094     PrimaryWeight = track->GetWeight();
0095     fEventAction->UpdateEventWeight(PrimaryWeight);
0096   }
0097
0098   // if the particle is not a primary photon stepping in the phantom, exit!
0099   if (volume != fPhantom || partName != "gamma" || ID != 1) return;
0100
0101   // if it is a new event, reset variable values to 0
0102   G4int eventNumber = G4RunManager::GetRunManager()->GetCurrentEvent()->GetEventID();
0103   if (eventNumber != fEventNumber) {
0104     fEventNumber = eventNumber;
0105     fNSe = 0;
0106   }
0107
0108   // identify the process that occurred
0109   G4String Process;
0110   if (postStepPoint->GetProcessDefinedStep() != NULL) {
0111     Process = postStepPoint->GetProcessDefinedStep()->GetProcessName();
0112   }
0113   else {
0114     Process = "UserLimit";
0115   }
0116   // G4cout << "Process: " << Process << G4endl;
0117   G4int ProcIndex = -1;
0118   if (Process == "Transportation" || Process == "CoupledTransportation" || Process == "UserLimit") {
0119     ProcIndex = 0;
0120   }
0121   if (Process == "Rayl" || Process == "biasWrapper(Rayl)") {
0122     ProcIndex = 1;
0123     fNSe++;
0124     fEventAction->AddNRi();
0125   }
0126   if (Process == "compt" || Process == "biasWrapper(compt)") {
0127     ProcIndex = 2;
0128     fNSe++;
0129     fEventAction->AddNCi();
0130   }
0131   if (Process == "phot" || Process == "biasWrapper(phot)") ProcIndex = 3;
0132   if (Process == "conv" || Process == "biasWrapper(conv)") ProcIndex = 4;
0133   if (Process == "photonNuclear" || Process == "biasWrapper(photonNuclear)") {
0134     ProcIndex = 5;
0135   }
0136   if (Process == "PowderDiffraction" || Process == "biasWrapper(PowderDiffraction)") {
0137     ProcIndex = 6;
0138     fNSe++;
0139     fEventAction->AddNDi();
0140   }
0141   // G4cout << "ProcIndex: " << ProcIndex << G4endl;
0142
0143   // calculate the scattering angle
0144   G4ThreeVector mom1 = preStepPoint->GetMomentumDirection();
0145   G4ThreeVector mom2 = postStepPoint->GetMomentumDirection();
0146   G4double theta = mom1.angle(mom2);
0147
0148   // fill the Scattering ntuple
0149   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
0150   if (theta > 1e-6) {  // record only if the angle is not 0
0151     analysisManager->FillNtupleIColumn(1, 0, ProcIndex);
0152     analysisManager->FillNtupleDColumn(1, 1, preStepPoint->GetKineticEnergy() / CLHEP::keV);
0153     analysisManager->FillNtupleDColumn(1, 2, theta / CLHEP::deg);
0154     analysisManager->FillNtupleDColumn(1, 3, track->GetWeight());
0155     analysisManager->AddNtupleRow(1);
0156   }
0157 }
0158
0159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......