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26 // 26 //
>> 27 // GEANT4 tag $Name: geant4-09-02 $
>> 28 //
>> 29 //
27 // GEANT4 physics class: G4PhotoNuclearCrossSe 30 // GEANT4 physics class: G4PhotoNuclearCrossSection -- header file
28 // Created: M.V. Kossov, CERN/ITEP(Moscow), 10 31 // Created: M.V. Kossov, CERN/ITEP(Moscow), 10-OCT-01
29 // The last update: M.V. Kossov, CERN/ITEP (Mo 32 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
>> 33 //
30 34
31 #ifndef G4PhotoNuclearCrossSection_h 35 #ifndef G4PhotoNuclearCrossSection_h
32 #define G4PhotoNuclearCrossSection_h 1 36 #define G4PhotoNuclearCrossSection_h 1
33 37
34 #include "G4VCrossSectionDataSet.hh" 38 #include "G4VCrossSectionDataSet.hh"
35 #include "G4DynamicParticle.hh" 39 #include "G4DynamicParticle.hh"
36 #include "G4Element.hh" 40 #include "G4Element.hh"
37 #include "G4ParticleTable.hh" 41 #include "G4ParticleTable.hh"
38 #include "G4NucleiProperties.hh" 42 #include "G4NucleiProperties.hh"
39 #include "G4NistManager.hh" <<
40 #include <vector> 43 #include <vector>
41 44
42 class G4PhotoNuclearCrossSection : public G4VC 45 class G4PhotoNuclearCrossSection : public G4VCrossSectionDataSet
43 { 46 {
44 public: 47 public:
45 << 48
46 G4PhotoNuclearCrossSection(); << 49 G4PhotoNuclearCrossSection();
47 ~G4PhotoNuclearCrossSection() override; << 50 virtual ~G4PhotoNuclearCrossSection();
48 << 51
49 static const char* Default_Name() {return << 52
50 << 53 G4bool IsApplicable(const G4DynamicParticle* particle, const G4Element* )
51 void CrossSectionDescription(std::ostream& << 54 {
52 << 55 return IsZAApplicable(particle, 0, 0);
53 G4bool IsIsoApplicable(const G4DynamicPart << 56 }
54 const G4Element* el << 57
55 const G4Material* mat = nullptr) over << 58 G4bool IsZAApplicable(const G4DynamicParticle* particle,
56 << 59 G4double /*ZZ*/, G4double /*AA*/)
57 G4bool IsElementApplicable(const G4Dynamic << 60 {
58 const G4Materia << 61 G4bool result = false;
59 << 62 if( particle->GetDefinition()->GetPDGEncoding()==22) result = true;
60 G4double GetIsoCrossSection(const G4Dynami << 63 return result;
61 G4int Z, G4int << 64 }
62 const G4Isotop << 65
63 const G4Elemen << 66
64 const G4Materi << 67 G4double GetCrossSection(const G4DynamicParticle* particle,
65 << 68 const G4Element* element, G4double temp = 0.);
66 G4double GetElementCrossSection(const G4Dy << 69
67 const G4Ma << 70 G4double GetIsoZACrossSection(const G4DynamicParticle* particle,
68 << 71 G4double ZZ, G4double AA,
69 G4double ComputeElementXSection(G4double e << 72 G4double /*aTemperature*/);
70 << 73
71 G4double ComputeIsoXSection(G4double energ << 74
72 << 75 void BuildPhysicsTable(const G4ParticleDefinition&) {}
73 G4PhotoNuclearCrossSection& operator= << 76
74 (const G4PhotoNuclearCrossSection& right) << 77 void DumpPhysicsTable(const G4ParticleDefinition&) {}
75 G4PhotoNuclearCrossSection(const G4PhotoNu <<
76 78
77 private: 79 private:
78 << 80 G4int GetFunctions(G4double a, G4double* y, G4double* z);
79 G4int GetFunctions(G4double a, G4double* y << 81 G4double EquLinearFit(G4double X, G4int N,const G4double X0,const G4double XD, const G4double* Y);
80 G4double EquLinearFit(G4double X, G4int N, << 82 G4double ThresholdEnergy(G4int Z, G4int N);
81 const G4double XD, c << 83
82 G4double ThresholdEnergy(G4int Z, G4int N) << 84 // Body
83 << 85 private:
84 G4int lastZ = 0; // The last Z << 86 static G4int lastN; // The last N of calculated nucleus
85 G4double lastSig = 0.0; // Last value << 87 static G4int lastZ; // The last Z of calculated nucleus
86 G4double* lastGDR = nullptr; // Pointer to << 88 static G4double lastSig; // Last value of the Cross Section
87 G4double* lastHEN = nullptr; // Pointer to << 89 static G4double* lastGDR; // Pointer to the last array of GDR cross sections
88 G4double lastE = 0.0; // Last used << 90 static G4double* lastHEN; // Pointer to the last array of HEn cross sections
89 G4double lastTH = 0.0; // Last value << 91 static G4double lastE; // Last used in the cross section Energy
90 G4double lastSP = 0.0; // Last value << 92 static G4double lastTH; // Last value of the Energy Threshold (A-dependent)
91 << 93 static G4double lastSP; // Last value of the ShadowingPomeron (A-dependent)
92 // Vector of pointers to the GDRPhotonucle << 94
93 std::vector <G4double*> GDR; << 95 static std::vector <G4double*> GDR; // Vector of pointers to the GDRPhotonuclearCrossSection
94 << 96 static std::vector <G4double*> HEN; // Vector of pointers to the HighEnPhotonuclearCrossSect
95 // store deuteron, triton, He3 XS << 97
96 G4double* deuteron_GDR = nullptr; <<
97 G4double* deuteron_HR = nullptr; <<
98 G4double deuteron_TH = 0.0; <<
99 G4double deuteron_SP = 0.0; <<
100 G4double* triton_GDR = nullptr; <<
101 G4double* triton_HR = nullptr; <<
102 G4double triton_TH = 0.0; <<
103 G4double triton_SP = 0.0; <<
104 G4double* he3_GDR = nullptr; <<
105 G4double* he3_HR = nullptr; <<
106 G4double he3_TH = 0.0; <<
107 G4double he3_SP = 0.0; <<
108 <<
109 // Vector of pointers to the HighEnPhotonu <<
110 std::vector <G4double*> HEN; <<
111 <<
112 std::vector <G4double> spA; // shadowing <<
113 std::vector <G4double> eTH; // energy t <<
114 <<
115 G4NistManager* nistmngr; <<
116 <<
117 G4double mNeut; <<
118 G4double mProt; <<
119 }; 98 };
120 99
121 #endif 100 #endif
122 101