MicrobeamSteppingAction.cc

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#include "G4SystemOfUnits.hh"
#include "G4SteppingManager.hh"

#include "MicrobeamSteppingAction.hh"
#include "MicrobeamRunAction.hh"
#include "MicrobeamDetectorConstruction.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

MicrobeamSteppingAction::MicrobeamSteppingAction(MicrobeamRunAction* run,MicrobeamDetectorConstruction* det,
MicrobeamHistoManager* his)
:Run(run),Detector(det),Histo(his)
{ }

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

MicrobeamSteppingAction::~MicrobeamSteppingAction()
{ }

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void MicrobeamSteppingAction::UserSteppingAction(const G4Step* aStep)
  
{ 

// COUNT GAS DETECTOR HITS

if (       ((aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName() == "_CollDet_yoke_")
        &&  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "Isobutane")
        &&  (aStep->GetTrack()->GetDynamicParticle()->GetDefinition() ->GetParticleName() == "alpha"))
    
        || 
       ((aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName() == "_CollDet_gap4_")
        &&  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "Isobutane")
    &&  (aStep->GetTrack()->GetDynamicParticle()->GetDefinition() ->GetParticleName() == "alpha"))

    ||

           ((aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName() == "_CollDet_gap5_")
        &&  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "Isobutane")
    &&  (aStep->GetTrack()->GetDynamicParticle()->GetDefinition() ->GetParticleName() == "alpha"))

    )
    {
      Run->AddNbOfHitsGas();    
    }
    
// STOPPING POWER AND BEAM SPOT SIZE AT CELL ENTRANCE

if (       ((aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName() == "Polyprop")
        &&  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "KGM")
        &&  (aStep->GetTrack()->GetDynamicParticle()->GetDefinition() ->GetParticleName() == "alpha"))
    
        || 
       ((aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName() == "Polyprop")
        &&  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "physicalCytoplasm")
    &&  (aStep->GetTrack()->GetDynamicParticle()->GetDefinition() ->GetParticleName() == "alpha"))
    )
    {
    
     if( (aStep->GetPreStepPoint()->GetKineticEnergy() - aStep->GetPostStepPoint()->GetKineticEnergy() ) >0) 
     {
          Histo->FillNtuple(0,0,aStep->GetPreStepPoint()->GetKineticEnergy()/keV);
          Histo->FillNtuple(0,1,
        (aStep->GetPreStepPoint()->GetKineticEnergy() -
         aStep->GetPostStepPoint()->GetKineticEnergy())/ keV/(aStep->GetStepLength()/micrometer));
          Histo->AddRowNtuple(0);
     }

         // Average dE over step suggested by Michel Maire

     G4StepPoint* p1 = aStep->GetPreStepPoint();
         G4ThreeVector coord1 = p1->GetPosition();
         const G4AffineTransform transformation1 = p1->GetTouchable()->GetHistory()->GetTopTransform();
         G4ThreeVector localPosition1 = transformation1.TransformPoint(coord1);

     G4StepPoint* p2 = aStep->GetPostStepPoint();
         G4ThreeVector coord2 = p2->GetPosition();
         const G4AffineTransform transformation2 = p2->GetTouchable()->GetHistory()->GetTopTransform();
         G4ThreeVector localPosition2 = transformation2.TransformPoint(coord2);

         G4ThreeVector localPosition = localPosition1 + G4UniformRand()*(localPosition2-localPosition1);
     
     // end

     Histo->FillNtuple(1,0,localPosition.x()/micrometer);
     Histo->FillNtuple(1,1,localPosition.y()/micrometer);
         Histo->AddRowNtuple(1);            

    }

// ALPHA RANGE

if (

    (aStep->GetTrack()->GetDynamicParticle()->GetDefinition() ->GetParticleName() == "alpha")
    
    &&
    
    (aStep->GetTrack()->GetKineticEnergy()<1e-6)
    
    &&
            
          ( (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "physicalCytoplasm")
    ||  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "KGM")    
    ||  (aStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() == "physicalNucleus") )  
        
   )
    
    {       
     Histo->FillNtuple(2,0,aStep->GetPostStepPoint()->GetPosition().x()/micrometer);
     Histo->FillNtuple(2,1,aStep->GetPostStepPoint()->GetPosition().y()/micrometer);
     Histo->FillNtuple(2,2,aStep->GetPostStepPoint()->GetPosition().z()/micrometer);
         Histo->AddRowNtuple(2);            
    }

// TOTAL DOSE DEPOSIT AND DOSE DEPOSIT WITHIN A PHANTOM VOXEL
// FOR ALL PARTICLES

if (aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName()  == "physicalNucleus")

    { 
     G4double dose = (aStep->GetTotalEnergyDeposit()/joule)/(Run->GetMassNucleus()/kg);
     Run->AddDoseN(dose);

     G4ThreeVector v;
         Run->AddDoseBox(aStep->GetPreStepPoint()->GetTouchableHandle()->GetReplicaNumber(),
      aStep->GetTotalEnergyDeposit()/eV);
    }


if (aStep->GetPreStepPoint()->GetPhysicalVolume()->GetName()  == "physicalCytoplasm")

    { 
     G4double dose = (aStep->GetTotalEnergyDeposit()/joule)/(Run->GetMassCytoplasm()/kg);
     Run->AddDoseC(dose);

     G4ThreeVector v;
         Run->AddDoseBox(aStep->GetPreStepPoint()->GetTouchableHandle()->GetReplicaNumber(),
      aStep->GetTotalEnergyDeposit()/eV);
    }
}