include/Geant4/G4PenelopeAnnihilationModel.hh

0001 //
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0025 //
0026 //
0027 // Author: Luciano Pandola
0028 //
0029 // History:
0030 // -----------
0031 // 29 Oct 2008   L. Pandola   1st implementation. Migration from EM process
0032 //                            to EM model
0033 // 02 Oct 2013   L. Pandola   Migration to MT paradigm
0034 //
0035 // -------------------------------------------------------------------
0036 //
0037 // Class description:
0038 // Low Energy Electromagnetic Physics, Positron Annihilation
0039 // with Penelope Model
0040 // -------------------------------------------------------------------
0041
0042 #ifndef G4PENELOPEANNIHILATIONMODEL_HH
0043 #define G4PENELOPEANNIHILATIONMODEL_HH 1
0044
0045 #include "globals.hh"
0046 #include "G4VEmModel.hh"
0047 #include "G4DataVector.hh"
0048 #include "G4ParticleChangeForGamma.hh"
0049
0050 class G4ParticleDefinition;
0051 class G4DynamicParticle;
0052 class G4MaterialCutsCouple;
0053 class G4Material;
0054
0055 class G4PenelopeAnnihilationModel : public G4VEmModel
0056 {
0057 public:
0058   explicit G4PenelopeAnnihilationModel(const G4ParticleDefinition* p=nullptr,
0059                        const G4String& processName ="PenAnnih");
0060   virtual ~G4PenelopeAnnihilationModel();
0061
0062   void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
0063   void InitialiseLocal(const G4ParticleDefinition*,
0064                                G4VEmModel* ) override;
0065
0066   G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
0067                       G4double kinEnergy,
0068                       G4double Z,
0069                       G4double A=0,
0070                       G4double cut=0,
0071                       G4double emax=DBL_MAX) override;
0072
0073   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0074              const G4MaterialCutsCouple*,
0075              const G4DynamicParticle*,
0076              G4double tmin,
0077              G4double maxEnergy) override;
0078
0079   void SetVerbosityLevel(G4int lev){fVerboseLevel = lev;};
0080   G4int GetVerbosityLevel(){return fVerboseLevel;};
0081
0082   G4PenelopeAnnihilationModel & operator=(const G4PenelopeAnnihilationModel &right) = delete;
0083   G4PenelopeAnnihilationModel(const G4PenelopeAnnihilationModel&) = delete;
0084
0085 protected:
0086   G4ParticleChangeForGamma* fParticleChange;
0087   const G4ParticleDefinition* fParticle;
0088
0089 private:
0090   G4double ComputeCrossSectionPerElectron(G4double energy);
0091   void SetParticle(const G4ParticleDefinition*);
0092
0093   //Stored here so it is not recalculated every time
0094   static G4double fPielr2;
0095
0096   G4double fIntrinsicLowEnergyLimit;
0097   G4double fIntrinsicHighEnergyLimit;
0098
0099   G4int fVerboseLevel;
0100   G4bool fIsInitialised;
0101 };
0102
0103 #endif
0104