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27 // ------------------------------------------- 27 // -------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class header file 29 // GEANT4 Class header file
30 // 30 //
31 // 31 //
32 // File name: G4GammaNuclearXS 32 // File name: G4GammaNuclearXS
33 // 33 //
34 // Authors V.Ivantchenko, Geant4, 20 October << 34 // Author V.Ivantchenko, Geant4, 22 October 2020
35 // B.Kutsenko, BINP/NSU, 10 August 20 <<
36 // <<
37 // 35 //
>> 36
38 // Class Description: 37 // Class Description:
39 // This is a base class for gamma-nuclear cros 38 // This is a base class for gamma-nuclear cross section based on
40 // data files from IAEA Evaluated Photonuclear << 39 // data files from G4PARTICLEXSDATA data set
41 // https://www-nds.iaea.org/photonuclear/ << 40 // Class Description - End
42 // Database review: <<
43 // https://www.sciencedirect.com/science/artic <<
44 // <<
45 41
46 #ifndef G4GammaNuclearXS_h 42 #ifndef G4GammaNuclearXS_h
47 #define G4GammaNuclearXS_h 1 43 #define G4GammaNuclearXS_h 1
48 44
49 #include "G4VCrossSectionDataSet.hh" 45 #include "G4VCrossSectionDataSet.hh"
50 #include "globals.hh" 46 #include "globals.hh"
>> 47 #include "G4PhysicsVector.hh"
>> 48 #include "G4Threading.hh"
51 #include <vector> 49 #include <vector>
52 50
>> 51 const G4int MAXZEL = 93;
>> 52
53 class G4DynamicParticle; 53 class G4DynamicParticle;
54 class G4ParticleDefinition; 54 class G4ParticleDefinition;
55 class G4Element; 55 class G4Element;
56 class G4ElementData; <<
57 class G4PhysicsVector; <<
58 class G4PhotoNuclearCrossSection; <<
59 56
60 class G4GammaNuclearXS final : public G4VCross 57 class G4GammaNuclearXS final : public G4VCrossSectionDataSet
61 { 58 {
62 public: 59 public:
63 60
64 G4GammaNuclearXS(); << 61 explicit G4GammaNuclearXS();
65 62
66 ~G4GammaNuclearXS() override = default; << 63 ~G4GammaNuclearXS() final;
67 64
68 static const char* Default_Name() { return " << 65 static const char* Default_Name() {return "G4GammaNuclearXS";}
69 66
70 G4bool IsElementApplicable(const G4DynamicPa 67 G4bool IsElementApplicable(const G4DynamicParticle*,
71 G4int Z, const G4Material*) final; 68 G4int Z, const G4Material*) final;
72 69
73 G4bool IsIsoApplicable(const G4DynamicPartic 70 G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,
74 const G4Element*, const G4Material* mat 71 const G4Element*, const G4Material* mat) final;
75 72
76 G4double GetElementCrossSection(const G4Dyna 73 G4double GetElementCrossSection(const G4DynamicParticle*,
77 G4int Z, << 74 G4int Z, const G4Material* mat) final;
78 const G4Mate <<
79 75
80 G4double GetIsoCrossSection(const G4DynamicP 76 G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
81 const G4Isotope* << 77 const G4Isotope* iso,
82 const G4Element* << 78 const G4Element* elm,
83 const G4Material << 79 const G4Material* mat) final;
84 80
85 const G4Isotope* SelectIsotope(const G4Eleme 81 const G4Isotope* SelectIsotope(const G4Element*,
86 G4double kinE 82 G4double kinEnergy, G4double logE) final;
87 83
88 void BuildPhysicsTable(const G4ParticleDefin 84 void BuildPhysicsTable(const G4ParticleDefinition&) final;
89 85
90 G4double IsoCrossSection(const G4double ekin <<
91 <<
92 G4double ElementCrossSection(const G4double <<
93 <<
94 G4double LowEnergyCrossSection(G4double ekin <<
95 <<
96 void CrossSectionDescription(std::ostream&) 86 void CrossSectionDescription(std::ostream&) const final;
97 << 87
98 G4GammaNuclearXS & operator=(const G4GammaNu 88 G4GammaNuclearXS & operator=(const G4GammaNuclearXS &right) = delete;
99 G4GammaNuclearXS(const G4GammaNuclearXS&) = 89 G4GammaNuclearXS(const G4GammaNuclearXS&) = delete;
100 90
101 private: 91 private:
102 92
103 void Initialise(G4int Z); 93 void Initialise(G4int Z);
104 94
>> 95 void InitialiseOnFly(G4int Z);
>> 96
105 const G4String& FindDirectoryPath(); 97 const G4String& FindDirectoryPath();
106 98
107 G4PhysicsVector* RetrieveVector(std::ostring << 99 inline G4PhysicsVector* GetPhysicsVector(G4int Z);
108 << 100
109 G4PhotoNuclearCrossSection* ggXsection = nul << 101 G4VCrossSectionDataSet* ggXsection;
110 const G4ParticleDefinition* gamma; 102 const G4ParticleDefinition* gamma;
111 103
112 // Cache << 104 static G4PhysicsVector* data[MAXZEL];
113 G4double fXS = 0.0; << 105 static G4double coeff[MAXZEL];
114 G4double fEkin = 0.0; <<
115 G4int fZ = 0; <<
116 <<
117 static const G4int MAXZGAMMAXS = 95; <<
118 static const G4int MAXNFREE = 11; <<
119 static G4ElementData* data; <<
120 // The list of elements with non-linear para <<
121 static const G4int freeVectorException[MAXNF <<
122 // CHIPS photonuclear model had a problem wi <<
123 // for isotopes of H and He, coefficient is <<
124 // section with element cross-section on hig <<
125 static G4double coeff[3][3]; <<
126 static G4double xs150[MAXZGAMMAXS]; <<
127 static G4String gDataDirectory; 106 static G4String gDataDirectory;
128 107
129 std::vector<G4double> temp; << 108 G4bool isMaster;
>> 109
>> 110 #ifdef G4MULTITHREADED
>> 111 static G4Mutex gNuclearXSMutex;
>> 112 #endif
130 }; 113 };
>> 114
>> 115 inline
>> 116 G4PhysicsVector* G4GammaNuclearXS::GetPhysicsVector(G4int Z)
>> 117 {
>> 118 if(nullptr == data[Z]) { InitialiseOnFly(Z); }
>> 119 return data[Z];
>> 120 }
131 121
132 #endif 122 #endif
133 123