LaserBeamsBarrel.h

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#ifndef LaserAlignmentSimulation_LaserBeamsBarrel_h
#define LaserAlignmentSimulation_LaserBeamsBarrel_h

#include "CLHEP/Random/DRand48Engine.h"

// G4 includes
#include "G4ParticleTable.hh"
#include "G4VUserPrimaryGeneratorAction.hh"

class G4ParticleGun;
class G4Event;

class LaserBeamsBarrel : public G4VUserPrimaryGeneratorAction {
public:
  LaserBeamsBarrel();
  LaserBeamsBarrel(G4int nPhotonsInGun, G4int nPhotonsInBeam, G4double PhotonEnergy);
  ~LaserBeamsBarrel() override;

public:
  void GeneratePrimaries(G4Event *myEvent) override;
  void setOptPhotonPolar(G4double Angle);

private:
  G4int thenParticleInGun;
  G4int thenParticle;
  G4double thePhotonEnergy;

private:
  G4ParticleGun *theParticleGun;

  // Unique random number generator
  CLHEP::DRand48Engine *theDRand48Engine;
};
#endif