include/Geant4/G4NeutronCaptureXS.hh

0001 //
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0025 //
0026 // -------------------------------------------------------------------
0027 //
0028 // GEANT4 Class header file
0029 //
0030 //
0031 // File name:    G4NeutronCaptureXS
0032 //
0033 // Author  Ivantchenko, Geant4, 3-AUG-09
0034 //
0035 // Modifications:
0036 //
0037
0038 // Class Description:
0039 // This is a base class for neutron radiative capture cross section based on
0040 // data files from G4PARTICLEXSDATA data set
0041 // Class Description - End
0042
0043 #ifndef G4NeutronCaptureXS_h
0044 #define G4NeutronCaptureXS_h 1
0045
0046 #include "G4VCrossSectionDataSet.hh"
0047 #include "globals.hh"
0048 #include "G4ElementData.hh"
0049 #include "G4PhysicsVector.hh"
0050 #include <vector>
0051 #include <iostream>
0052
0053 class G4DynamicParticle;
0054 class G4ParticleDefinition;
0055 class G4Element;
0056
0057 class G4NeutronCaptureXS final : public G4VCrossSectionDataSet
0058 {
0059 public:
0060
0061   G4NeutronCaptureXS();
0062
0063   ~G4NeutronCaptureXS() override = default;
0064
0065   static const char* Default_Name() {return "G4NeutronCaptureXS";}
0066
0067   G4bool IsElementApplicable(const G4DynamicParticle*, G4int Z,
0068                  const G4Material*) final;
0069
0070   G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,
0071              const G4Element*, const G4Material*) final;
0072
0073   G4double GetElementCrossSection(const G4DynamicParticle*,
0074                   G4int Z, const G4Material*) final;
0075
0076   G4double ComputeCrossSectionPerElement(G4double kinEnergy, G4double loge,
0077                                          const G4ParticleDefinition*,
0078                                          const G4Element*,
0079                                          const G4Material*) final;
0080
0081   G4double ComputeIsoCrossSection(G4double kinEnergy, G4double loge,
0082                                   const G4ParticleDefinition*,
0083                                   G4int Z, G4int A,
0084                                   const G4Isotope* iso,
0085                                   const G4Element* elm,
0086                                   const G4Material* mat) final;
0087
0088   G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
0089                               const G4Isotope* iso,
0090                               const G4Element* elm,
0091                               const G4Material* mat) final;
0092
0093   const G4Isotope* SelectIsotope(const G4Element*, G4double kinEnergy,
0094                                  G4double logE) final;
0095
0096   void BuildPhysicsTable(const G4ParticleDefinition&) final;
0097
0098   void CrossSectionDescription(std::ostream&) const final;
0099
0100   G4double ElementCrossSection(G4double kinEnergy, G4double loge, G4int Z);
0101
0102   G4double IsoCrossSection(G4double ekin, G4double logekin, G4int Z, G4int A);
0103
0104   G4NeutronCaptureXS & operator=(const G4NeutronCaptureXS &right) = delete;
0105   G4NeutronCaptureXS(const G4NeutronCaptureXS&) = delete;
0106
0107 private:
0108
0109   void Initialise(G4int Z);
0110
0111   void InitialiseOnFly(G4int Z);
0112
0113   const G4String& FindDirectoryPath();
0114
0115   inline const G4PhysicsVector* GetPhysicsVector(G4int Z);
0116
0117   G4PhysicsVector* RetrieveVector(std::ostringstream& in, G4bool warn);
0118
0119   G4double emax;
0120   G4double elimit;
0121   G4double logElimit;
0122
0123   std::vector<G4double> temp;
0124
0125   G4bool isInitializer{false};
0126
0127   static const G4int MAXZCAPTURE = 93;
0128   static G4ElementData* data;
0129   static G4String gDataDirectory;
0130 };
0131
0132 inline
0133 const G4PhysicsVector* G4NeutronCaptureXS::GetPhysicsVector(G4int Z)
0134 {
0135   const G4PhysicsVector* pv = data->GetElementData(Z);
0136   if(pv == nullptr) {
0137     InitialiseOnFly(Z);
0138     pv = data->GetElementData(Z);
0139   }
0140   return pv;
0141 }
0142
0143 #endif