XrayFluoSteppingAction.cc

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// $Id: XrayFluoSteppingAction.cc
// GEANT4 tag $Name: xray_fluo-V03-02-00
//
// Author: Elena Guardincerri (Elena.Guardincerri@ge.infn.it)
//
// History:
// -----------
// 28 Nov 2001 Elena Guardincerri     Created
//
// -------------------------------------------------------------------

#include "XrayFluoSteppingAction.hh"
#include "G4SteppingManager.hh"
#include "G4TrackVector.hh"
#include "XrayFluoAnalysisManager.hh"

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XrayFluoSteppingAction::XrayFluoSteppingAction() 
    :mercuryFlag(false)
{;}

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XrayFluoSteppingAction::~XrayFluoSteppingAction()
{;}

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void XrayFluoSteppingAction::UserSteppingAction(const G4Step* aStep)
{
  XrayFluoAnalysisManager* analysis  = XrayFluoAnalysisManager::getInstance();
  analysis->analyseStepping(aStep);

  if (mercuryFlag){
    const 
      XrayFluoMercuryDetectorConstruction* detector = 
      XrayFluoMercuryDetectorConstruction::GetInstance();

    if(aStep->GetTrack()->GetNextVolume()) 
      { 
        if(aStep->GetTrack()->GetNextVolume()->GetName() == "DetectorOptic") {
          G4ThreeVector particlePosition = aStep->GetPostStepPoint()->GetPosition();
          G4ThreeVector detectorPosition = detector->GetOptic()->GetObjectTranslation();
          G4ThreeVector newDirection = detectorPosition - particlePosition;
          aStep->GetPostStepPoint()->SetMomentumDirection(newDirection);
        }
      }
  }
}

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