Em10SteppingAction.cc

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#include "Em10DetectorConstruction.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4Gamma.hh"
#include "Em10SteppingAction.hh"
#include "Em10EventAction.hh"
#include "Em10RunAction.hh"
#include "G4Event.hh"
#include "G4VPhysicalVolume.hh"
#include "G4PhysicalConstants.hh"
#include "G4ios.hh"
#include <iomanip>


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Em10SteppingAction::Em10SteppingAction(Em10DetectorConstruction* DET,
                                     Em10EventAction* EA,
                                     Em10RunAction* RA)
  :detector (DET),eventaction (EA),runaction (RA),
   IDold(-1) ,evnoold(-1)
{}

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Em10SteppingAction::~Em10SteppingAction()
{}

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void Em10SteppingAction::UserSteppingAction(const G4Step* aStep)
{ 

  G4double Theta,Thetaback,Ttrans,Tback,Tsec,Egamma,yend,zend,rend ;

  G4int evno = eventaction->GetEventno() ; 

  const G4Track* track = aStep->GetTrack();
  const G4StepPoint* prePoint = aStep->GetPreStepPoint();
  G4int trackID = track->GetTrackID();
  G4int parentID = track->GetParentID();

  const G4DynamicParticle* dynParticle = track->GetDynamicParticle();
  const G4ParticleDefinition* particle = dynParticle->GetDefinition();
  G4VPhysicalVolume* preVol = prePoint->GetPhysicalVolume();
  G4VPhysicalVolume* postVol = aStep->GetPostStepPoint()->GetPhysicalVolume();

  IDnow = evno+10000*trackID+100000000*parentID; 
  if(IDnow != IDold) {
    IDold=IDnow ;
    if(trackID > 1 && (particle == G4Electron::Electron() || 
                       particle == G4Positron::Positron() || 
                       particle == G4Gamma::Gamma())) {
      runaction->Fillvertexz(track->GetVertexPosition().z());

      if(preVol->GetName()=="Absorber") {
        if(particle == G4Gamma::Gamma()) {
          eventaction->AddNeutral() ;
        } else {
          eventaction->AddCharged() ;
          Tsec = track->GetKineticEnergy() ;  
          Tsec += aStep->GetTotalEnergyDeposit() ; 
          runaction->FillTsec(Tsec) ;
          if(particle == G4Electron::Electron()) {
            eventaction->AddE() ;
          } else {
            eventaction->AddP() ;
          }
        }
      }
    }
  }

  if(preVol->GetName()=="Absorber") {
    if(particle == G4Electron::Electron() || 
       particle == G4Positron::Positron()) {
      eventaction->CountStepsCharged() ;

    } else if(particle == G4Gamma::Gamma()) {
      eventaction->CountStepsNeutral() ;
    }

    if(prePoint->GetStepStatus() == fGeomBoundary &&
       preVol != postVol) {

      if(trackID == 1) {
        if(track->GetMomentumDirection().z()>0.) {

          eventaction->SetTr();
          Theta = std::acos(track->GetMomentumDirection().z()) ;
          runaction->FillTh(Theta) ;
          Ttrans = track->GetKineticEnergy() ;
          runaction->FillTt(Ttrans) ;
          yend= aStep->GetTrack()->GetPosition().y() ;
          zend= aStep->GetTrack()->GetPosition().x() ;
          rend = std::sqrt(yend*yend+zend*zend) ;
          runaction->FillR(rend);

        } else {
          eventaction->SetRef();
          Thetaback = std::acos(aStep->GetTrack()->GetMomentumDirection().z());
          Thetaback -= 0.5*pi ;
          runaction->FillThBack(Thetaback) ;
          Tback  = aStep->GetTrack()->GetKineticEnergy() ;
          runaction->FillTb(Tback) ;
        }
      }
      if(track->GetMomentumDirection().z()>0. && 
         particle == G4Gamma::Gamma()) {
        
        Egamma = aStep->GetTrack()->GetKineticEnergy() ;
        runaction->FillGammaSpectrum(Egamma) ;
      }
    }
  }      
}

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