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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
53 class G4DynamicParticle; 51 class G4DynamicParticle;
54 class G4ParticleDefinition; 52 class G4ParticleDefinition;
55 class G4Element; 53 class G4Element;
56 class G4ElementData; <<
57 class G4PhysicsVector; <<
58 class G4PhotoNuclearCrossSection; <<
59 54
60 class G4GammaNuclearXS final : public G4VCross 55 class G4GammaNuclearXS final : public G4VCrossSectionDataSet
61 { 56 {
62 public: 57 public:
63 58
64 G4GammaNuclearXS(); << 59 explicit G4GammaNuclearXS();
65 60
66 ~G4GammaNuclearXS() override = default; << 61 ~G4GammaNuclearXS() final;
67 62
68 static const char* Default_Name() { return " << 63 static const char* Default_Name() {return "G4GammaNuclearXS";}
69 64
70 G4bool IsElementApplicable(const G4DynamicPa 65 G4bool IsElementApplicable(const G4DynamicParticle*,
71 G4int Z, const G4Material*) final; 66 G4int Z, const G4Material*) final;
72 67
73 G4bool IsIsoApplicable(const G4DynamicPartic 68 G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,
74 const G4Element*, const G4Material* mat 69 const G4Element*, const G4Material* mat) final;
75 70
76 G4double GetElementCrossSection(const G4Dyna 71 G4double GetElementCrossSection(const G4DynamicParticle*,
77 G4int Z, << 72 G4int Z, const G4Material* mat) final;
78 const G4Mate <<
79 73
80 G4double GetIsoCrossSection(const G4DynamicP 74 G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
81 const G4Isotope* << 75 const G4Isotope* iso,
82 const G4Element* << 76 const G4Element* elm,
83 const G4Material << 77 const G4Material* mat) final;
84 78
85 const G4Isotope* SelectIsotope(const G4Eleme 79 const G4Isotope* SelectIsotope(const G4Element*,
86 G4double kinE 80 G4double kinEnergy, G4double logE) final;
87 81
88 void BuildPhysicsTable(const G4ParticleDefin 82 void BuildPhysicsTable(const G4ParticleDefinition&) final;
89 83
90 G4double IsoCrossSection(const G4double ekin <<
91 <<
92 G4double ElementCrossSection(const G4double <<
93 <<
94 G4double LowEnergyCrossSection(G4double ekin <<
95 <<
96 void CrossSectionDescription(std::ostream&) 84 void CrossSectionDescription(std::ostream&) const final;
97 << 85
98 G4GammaNuclearXS & operator=(const G4GammaNu 86 G4GammaNuclearXS & operator=(const G4GammaNuclearXS &right) = delete;
99 G4GammaNuclearXS(const G4GammaNuclearXS&) = 87 G4GammaNuclearXS(const G4GammaNuclearXS&) = delete;
100 88
101 private: 89 private:
102 90
103 void Initialise(G4int Z); 91 void Initialise(G4int Z);
104 92
>> 93 void InitialiseOnFly(G4int Z);
>> 94
105 const G4String& FindDirectoryPath(); 95 const G4String& FindDirectoryPath();
106 96
107 G4PhysicsVector* RetrieveVector(std::ostring << 97 inline G4PhysicsVector* GetPhysicsVector(G4int Z);
108 << 98
109 G4PhotoNuclearCrossSection* ggXsection = nul << 99 G4VCrossSectionDataSet* ggXsection;
110 const G4ParticleDefinition* gamma; 100 const G4ParticleDefinition* gamma;
111 101
112 // Cache << 102 static const G4int MAXZGAMMAN = 93;
113 G4double fXS = 0.0; << 103 static G4PhysicsVector* data[MAXZGAMMAN];
114 G4double fEkin = 0.0; << 104 static G4double coeff[MAXZGAMMAN];
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; 105 static G4String gDataDirectory;
128 106
129 std::vector<G4double> temp; << 107 G4bool isMaster;
>> 108
>> 109 #ifdef G4MULTITHREADED
>> 110 static G4Mutex gNuclearXSMutex;
>> 111 #endif
130 }; 112 };
>> 113
>> 114 inline
>> 115 G4PhysicsVector* G4GammaNuclearXS::GetPhysicsVector(G4int Z)
>> 116 {
>> 117 if(nullptr == data[Z]) { InitialiseOnFly(Z); }
>> 118 return data[Z];
>> 119 }
131 120
132 #endif 121 #endif
133 122