mfp/src/SteppingAction.cc

0001 //
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0024 // ********************************************************************
0025 //
0026 // This example is provided by the Geant4-DNA collaboration
0027 // Any report or published results obtained using the Geant4-DNA software
0028 // shall cite the following Geant4-DNA collaboration publications:
0029 // Med. Phys. 45 (2018) e722-e739
0030 // Phys. Med. 31 (2015) 861-874
0031 // Med. Phys. 37 (2010) 4692-4708
0032 // Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
0033 //
0034 // The Geant4-DNA web site is available at http://geant4-dna.org
0035 //
0036 /// \file SteppingAction.cc
0037 /// \brief Implementation of the SteppingAction class
0038
0039 #include "SteppingAction.hh"
0040
0041 #include "HistoManager.hh"
0042 #include "Run.hh"
0043
0044 #include "G4RunManager.hh"
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 SteppingAction::SteppingAction() : G4UserSteppingAction() {}
0049
0050 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0051
0052 SteppingAction::~SteppingAction() {}
0053
0054 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0055
0056 void SteppingAction::UserSteppingAction(const G4Step* aStep)
0057 {
0058   const G4StepPoint* endPoint = aStep->GetPostStepPoint();
0059   G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName();
0060
0061   Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());
0062
0063   G4bool transmit = (endPoint->GetStepStatus() <= fGeomBoundary);
0064   if (transmit) {
0065     run->CountProcesses(procName);
0066   }
0067   else {
0068     // Count processes and sum track length
0069     G4double stepLength = aStep->GetStepLength();
0070     run->CountProcesses(procName);
0071     run->SumTrack(stepLength);
0072   }
0073
0074   // Call analysis manager
0075   G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
0076
0077   // Scattered primary particle
0078   G4int id = 1;
0079   if (aStep->GetTrack()->GetTrackStatus() == fAlive) {
0080     G4double energy = endPoint->GetKineticEnergy();
0081     analysisManager->FillH1(id, energy);
0082     id = 2;
0083     G4ThreeVector direction = endPoint->GetMomentumDirection();
0084     // Assuming incident particle shot along x
0085     G4double costeta = direction.x();
0086     analysisManager->FillH1(id, costeta);
0087   }
0088
0089   // Secondaries
0090   const std::vector<const G4Track*>* secondary = aStep->GetSecondaryInCurrentStep();
0091   for (size_t lp = 0; lp < (*secondary).size(); lp++) {
0092     G4double charge = (*secondary)[lp]->GetDefinition()->GetPDGCharge();
0093     if (charge != 0.) {
0094       id = 3;
0095     }
0096     else {
0097       id = 5;
0098     }
0099     G4double energy = (*secondary)[lp]->GetKineticEnergy();
0100     analysisManager->FillH1(id, energy);
0101
0102     ++id;
0103     G4ThreeVector direction = (*secondary)[lp]->GetMomentumDirection();
0104     G4double costeta = direction.x();
0105     analysisManager->FillH1(id, costeta);
0106
0107     // Energy tranferred to charged secondaries
0108     if (charge != 0.) {
0109       run->SumeTransf(energy);
0110     }
0111   }
0112
0113   // Kill event after first interaction
0114   G4RunManager::GetRunManager()->AbortEvent();
0115 }