ExG4PrimaryGeneratorAction01.hh

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// $Id$
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#ifndef ExG4PrimaryGeneratorAction01_h
#define ExG4PrimaryGeneratorAction01_h 1

#include "G4VUserPrimaryGeneratorAction.hh"
#include "G4ThreeVector.hh"
#include "globals.hh"

#include "CLHEP/Units/SystemOfUnits.h"

class G4ParticleGun;
class G4Event;


class ExG4PrimaryGeneratorAction01 : public G4VUserPrimaryGeneratorAction
{
  public:
    ExG4PrimaryGeneratorAction01(
      const G4String& particleName = "geantino",
      G4double energy = 1.*CLHEP::MeV,
      G4ThreeVector position= G4ThreeVector(0,0,0),
      G4ThreeVector momentumDirection = G4ThreeVector(0,0,1));    
    ~ExG4PrimaryGeneratorAction01();

    // methods
    virtual void GeneratePrimaries(G4Event*);

  private:
    // data members
    G4ParticleGun*  fParticleGun; //pointer a to G4 service class
};

#endif