Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/examples/basic/B5/include/PrimaryGeneratorAction.hh

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 26 //
 27 /// \file B5/include/PrimaryGeneratorAction.hh
 28 /// \brief Definition of the B5::PrimaryGeneratorAction class
 29 
 30 #ifndef B5PrimaryGeneratorAction_h
 31 #define B5PrimaryGeneratorAction_h 1
 32 
 33 #include "G4VUserPrimaryGeneratorAction.hh"
 34 #include "globals.hh"
 35 
 36 #include <CLHEP/Units/SystemOfUnits.h>
 37 
 38 class G4ParticleGun;
 39 class G4GenericMessenger;
 40 class G4Event;
 41 class G4ParticleDefinition;
 42 
 43 namespace B5
 44 {
 45 
 46 /// Primary generator
 47 ///
 48 /// A single particle is generated.
 49 /// User can select
 50 /// - the initial momentum and angle
 51 /// - the momentum and angle spreads
 52 /// - random selection of a particle type from proton, kaon+, pi+, muon+, e+
 53 
 54 class PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
 55 {
 56   public:
 57     PrimaryGeneratorAction();
 58     ~PrimaryGeneratorAction() override;
 59 
 60     void GeneratePrimaries(G4Event*) override;
 61 
 62     void SetMomentum(G4double val) { fMomentum = val; }
 63     G4double GetMomentum() const { return fMomentum; }
 64 
 65     void SetSigmaMomentum(G4double val) { fSigmaMomentum = val; }
 66     G4double GetSigmaMomentum() const { return fSigmaMomentum; }
 67 
 68     void SetSigmaAngle(G4double val) { fSigmaAngle = val; }
 69     G4double GetSigmaAngle() const { return fSigmaAngle; }
 70 
 71     void SetRandomize(G4bool val) { fRandomizePrimary = val; }
 72     G4bool GetRandomize() const { return fRandomizePrimary; }
 73 
 74   private:
 75     void DefineCommands();
 76 
 77     G4ParticleGun* fParticleGun = nullptr;
 78     G4GenericMessenger* fMessenger = nullptr;
 79     G4ParticleDefinition* fPositron = nullptr;
 80     G4ParticleDefinition* fMuon = nullptr;
 81     G4ParticleDefinition* fPion = nullptr;
 82     G4ParticleDefinition* fKaon = nullptr;
 83     G4ParticleDefinition* fProton = nullptr;
 84     G4double fMomentum = 1000. * CLHEP::MeV;
 85     G4double fSigmaMomentum = 50. * CLHEP::MeV;
 86     G4double fSigmaAngle = 2. * CLHEP::deg;
 87     G4bool fRandomizePrimary = true;
 88 };
 89 
 90 }  // namespace B5
 91 
 92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 93 
 94 #endif
 95