PurgMagSteppingAction.cc

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//
// Code developed by:
//  S.Larsson
//
//    ***********************************
//    *                                 *
//    *    PurgMagSteppingAction.cc     *
//    *                                 *
//    ***********************************
//
// $Id: PurgMagSteppingAction.cc 84366 2014-10-14 12:46:20Z gcosmo $
//

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#include "PurgMagSteppingAction.hh"
#include "PurgMagRunAction.hh"
#include "PurgMagDetectorConstruction.hh"

#include "G4SteppingManager.hh"
#include "G4VTouchable.hh"
#include "G4VPhysicalVolume.hh"

#include "PurgMagAnalysisManager.hh"
#include "G4SystemOfUnits.hh"

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PurgMagSteppingAction::PurgMagSteppingAction(const 
                                             PurgMagDetectorConstruction* det)
:Detector(det)
{ }

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PurgMagSteppingAction::~PurgMagSteppingAction()
{ }

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void PurgMagSteppingAction::UserSteppingAction(const G4Step* aStep)
  
{ 
  //Collection at SSD in N-tuples. Electrons and photons separated
  //Prestep point in World, next volume MeasureVolume, process transportation
 PurgMagAnalysisManager* analysis = PurgMagAnalysisManager::getInstance();      
  if ((aStep->GetPreStepPoint()->GetPhysicalVolume() == Detector->GetWorld())&&
      (aStep->GetTrack()->GetNextVolume() == Detector->GetMeasureVolume())&&
      //(aStep->GetTrack()->GetMomentumDirection().z()>0.)&& // only particles with positive momentum
      (aStep->GetPostStepPoint()->GetProcessDefinedStep()->GetProcessName() == "Transportation"))
    {
      G4double gx, gy, gz, ge, gpx, gpy, gpz, ex, ey, ez, ee; 
      G4double epx, epy, epz, px, py, pz, pe, ppx, ppy, ppz;
   
                 
      // Electrons 
      if(aStep->GetTrack()->GetDynamicParticle()->GetDefinition()->GetParticleName()
      == "e-")
        {//Position 
         ex = (aStep->GetTrack()->GetPosition().x())/cm;
         ey = (aStep->GetTrack()->GetPosition().y())/cm; 
         ez = (aStep->GetTrack()->GetPosition().z())/cm;
         // Energy
         ee = (aStep->GetTrack()->GetKineticEnergy())/MeV;
         // Momentum
         epx = aStep->GetTrack()->GetMomentum().x();
         epy = aStep->GetTrack()->GetMomentum().y();
         epz = aStep->GetTrack()->GetMomentum().z();
          
         // Fill N-tuple electrons
         analysis->fill_Tuple_Electrons(ex, ey, ez, ee, epx, epy, epz);
      }

      // Photons
      if (aStep->GetTrack()->GetDynamicParticle()->GetDefinition()->
          GetParticleName() == "gamma")
        {
          
          // Position
          gx = (aStep->GetTrack()->GetPosition().x())/cm;
          gy = (aStep->GetTrack()->GetPosition().y())/cm;
          gz = (aStep->GetTrack()->GetPosition().z())/cm;
          
          // Energy
          ge = (aStep->GetTrack()->GetKineticEnergy())/MeV;
          
          // Momentum
          gpx = aStep->GetTrack()->GetMomentum().x();
          gpy = aStep->GetTrack()->GetMomentum().y();
          gpz = aStep->GetTrack()->GetMomentum().z();

          // Fill N-tuple photons
          analysis->fill_Tuple_Gamma(gx, gy, gz, ge, gpx, gpy, gpz);
        }


      // Positrons
      if (aStep->GetTrack()->GetDynamicParticle()->GetDefinition()->GetParticleName() == "e+")
        {

          // Position
          px = (aStep->GetTrack()->GetPosition().x())/cm;
          py = (aStep->GetTrack()->GetPosition().y())/cm;
          pz = (aStep->GetTrack()->GetPosition().z())/cm;
          
          // Energy
          pe = (aStep->GetTrack()->GetKineticEnergy())/MeV;
          
          // Momentum
          ppx = aStep->GetTrack()->GetMomentum().x();
          ppy = aStep->GetTrack()->GetMomentum().y();
          ppz = aStep->GetTrack()->GetMomentum().z();
          
          // Fill Ntuple positrons
          analysis->fill_Tuple_Positrons(px, py, pz, pe, ppx, ppy, ppz);
        }
    }
}
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