spower/src/SteppingAction.cc

0001 //
0002 // ********************************************************************
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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 "G4DNAGenericIonsManager.hh"
0042 #include "G4Electron.hh"
0043 #include "G4Gamma.hh"
0044 #include "G4Proton.hh"
0045 #include "G4RunManager.hh"
0046
0047 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0048
0049 SteppingAction::SteppingAction() : G4UserSteppingAction()
0050 {
0051   fSumOfStepLength = 0;
0052   fLength = 0;
0053   fDeltaE = -7;
0054   fTotalStoppingPower = -8;
0055   fTotalNumberOfSteps = 0;
0056   fNumberOfSteps = 0;
0057   fDepositedEnergy = 0;
0058 }
0059
0060 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0061
0062 SteppingAction::~SteppingAction() {}
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0065
0066 void SteppingAction::UserSteppingAction(const G4Step* step)
0067 {
0068   //*** WARNING: this line will kill all secondary e- and gammas ***
0069
0070   if (step->GetTrack()->GetDefinition() == G4Electron::ElectronDefinition()
0071       && step->GetTrack()->GetTrackID() != 1)
0072     step->GetTrack()->SetTrackStatus(fStopAndKill);
0073
0074   if (step->GetTrack()->GetDefinition() == G4Gamma::GammaDefinition())
0075     step->GetTrack()->SetTrackStatus(fStopAndKill);
0076
0077   //
0078
0079   G4double charge = step->GetTrack()->GetDefinition()->GetPDGCharge();
0080   G4double steplen = step->GetStepLength();
0081   G4double edep = step->GetTotalEnergyDeposit();
0082   G4int maxNumberOfSteps = -1;
0083
0084   G4DNAGenericIonsManager* instance;
0085   instance = G4DNAGenericIonsManager::Instance();
0086
0087   if (
0088     // ELECTRONS
0089     (step->GetTrack()->GetTrackID() == 1
0090      && step->GetTrack()->GetParticleDefinition() == G4Electron::ElectronDefinition())
0091
0092     ||
0093
0094     // PROTONS, HYDROGEN, ALPHA PARTICLES AND CHARGED STATES, IONS
0095     (charge != -1. && step->GetTrack()->GetParticleDefinition() != G4Gamma::GammaDefinition())
0096
0097   )
0098   {
0099     fSumOfStepLength = fSumOfStepLength + steplen;
0100     fDepositedEnergy = fDepositedEnergy + edep;
0101     fNumberOfSteps = fNumberOfSteps + 1;
0102
0103     // G4cout << fSumOfStepLength << " " << fDepositedEnergy << " " << fNumberOfSteps << G4endl;
0104
0105     // ELECTRONS
0106
0107     if (step->GetTrack()->GetParticleDefinition() == G4Electron::ElectronDefinition())
0108       maxNumberOfSteps = 1000;
0109
0110     // PROTONS, HYDROGEN
0111
0112     if (step->GetTrack()->GetParticleDefinition() == G4Proton::ProtonDefinition()
0113         || step->GetTrack()->GetParticleDefinition() == instance->GetIon("hydrogen"))
0114       maxNumberOfSteps = 1000;
0115
0116     // He0, He+, He2+
0117
0118     if (step->GetTrack()->GetParticleDefinition() == instance->GetIon("alpha++")
0119         || step->GetTrack()->GetParticleDefinition() == instance->GetIon("alpha+")
0120         || step->GetTrack()->GetParticleDefinition() == instance->GetIon("helium"))
0121       maxNumberOfSteps = 10000;
0122
0123     // IONS (above helium)
0124     if (charge > 2) maxNumberOfSteps = 10000;
0125
0126     // ALL
0127
0128     if (fNumberOfSteps > maxNumberOfSteps) {
0129       fLength = fSumOfStepLength;
0130
0131       fTotalStoppingPower = fDepositedEnergy / fLength;
0132       // G4cout << fTotalStoppingPower/(MeV/cm) << G4endl;
0133
0134       G4RunManager::GetRunManager()->AbortEvent();
0135       fSumOfStepLength = 0.;
0136       fDepositedEnergy = 0;
0137       fNumberOfSteps = 0;
0138     };
0139   };
0140 }