include/Geant4/G4ComponentBarNucleonNucleusXsc.hh

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0025 //
0026 //
0027 // author: Vladimir.Grichine@cern.ch
0028 //
0029 // Implements data from: Barashenkov V.S., Nucleon-Nucleus Cross Section,
0030 // Preprint JINR P2-89-770, p. 12, Dubna 1989 (scanned version from KEK)
0031 // Based on G4NucleonNuclearCrossSection class
0032 //
0033 // Modifications: 16.08.2018 V.Ivanchenko major revision
0034 //
0035
0036 #ifndef G4ComponentBarNucleonNucleusXsc_h
0037 #define G4ComponentBarNucleonNucleusXsc_h
0038
0039
0040 #include "G4VComponentCrossSection.hh"
0041 #include "G4ParticleDefinition.hh"
0042 #include "G4DynamicParticle.hh"
0043
0044 #include "globals.hh"
0045 #include "G4PiData.hh"
0046 #include <vector>
0047
0048 class G4ComponentBarNucleonNucleusXsc : public G4VComponentCrossSection
0049 {
0050
0051 public:
0052
0053   G4ComponentBarNucleonNucleusXsc();
0054   ~G4ComponentBarNucleonNucleusXsc() override = default;
0055
0056   G4double GetTotalIsotopeCrossSection(const G4ParticleDefinition* aParticle,
0057                        G4double kinEnergy,
0058                        G4int Z, G4int ) final;
0059
0060   G4double GetTotalElementCrossSection(const G4ParticleDefinition* aParticle,
0061                        G4double kinEnergy,
0062                        G4int Z, G4double ) final;
0063
0064   G4double GetInelasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
0065                        G4double kinEnergy,
0066                        G4int Z, G4int ) final;
0067
0068   G4double GetInelasticElementCrossSection(const G4ParticleDefinition* aParticle,
0069                        G4double kinEnergy,
0070                        G4int Z, G4double ) final;
0071
0072   G4double GetElasticElementCrossSection(const G4ParticleDefinition* aParticle,
0073                      G4double kinEnergy,
0074                      G4int Z, G4double ) final;
0075
0076   G4double GetElasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
0077                      G4double kinEnergy,
0078                      G4int Z, G4int ) final;
0079
0080   void ComputeCrossSections(const G4ParticleDefinition* aParticle,
0081                 G4double kinEnergy, G4int Z);
0082
0083   void Description(std::ostream&) const final;
0084
0085   inline G4double GetElementCrossSection(const G4DynamicParticle* aParticle, G4int Z);
0086   inline G4double GetElasticCrossSection(const G4DynamicParticle* aParticle, G4int Z);
0087
0088   inline G4double GetTotalXsc()     { return fTotalXsc;   };
0089   inline G4double GetElasticXsc()   { return fElasticXsc; };
0090   inline G4double GetInelasticXsc() { return fInelasticXsc; };
0091
0092   G4ComponentBarNucleonNucleusXsc& operator=
0093   (const G4ComponentBarNucleonNucleusXsc &right) = delete;
0094   G4ComponentBarNucleonNucleusXsc(const G4ComponentBarNucleonNucleusXsc&) = delete;
0095
0096 private:
0097
0098   G4double Interpolate(G4int Z1, G4int Z2, G4int Z, G4double x1, G4double x2) const;
0099
0100   void LoadData();
0101
0102   // cross sections
0103   G4double fTotalXsc{0.0};
0104   G4double fInelasticXsc{0.0};
0105   G4double fElasticXsc{0.0};
0106
0107   // particles
0108   const G4ParticleDefinition* theProton;
0109   const G4ParticleDefinition* theNeutron;
0110
0111   static G4double A75[93];
0112   static const G4int NZ = 17;
0113   static G4int theZ[NZ];
0114   static std::vector<G4PiData*>* thePData;
0115   static std::vector<G4PiData*>* theNData;
0116 };
0117
0118 inline
0119 G4double G4ComponentBarNucleonNucleusXsc::GetElementCrossSection(
0120          const G4DynamicParticle* dp, G4int Z)
0121 {
0122   ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
0123   return fInelasticXsc;
0124 }
0125
0126 inline
0127 G4double G4ComponentBarNucleonNucleusXsc::GetElasticCrossSection(
0128          const G4DynamicParticle* dp, G4int Z)
0129 {
0130   ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
0131   return fElasticXsc;
0132 }
0133
0134 #endif