| Geant4 Cross Reference |
1 //
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24 // ********************************************************************
25 //
26 //
27 //
28 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
29 //
30 // History:
31 // -----------
32 // 16 Jun 2008 MGP Created on the basis of G4CrossSectionHandler
33
34 // -------------------------------------------------------------------
35 // Class description:
36 // Cross section manager for hadron impact ionization
37 // Documented in:
38 // M.G. Pia et al., PIXE Simulation With Geant4,
39 // IEEE Trans. Nucl. Sci., vol. 56, no. 6, pp. 3614-3649, Dec. 2009.
40
41 // -------------------------------------------------------------------
42
43 #ifndef G4PIXECROSSSECTIONHANDLER_HH
44 #define G4PIXECROSSSECTIONHANDLER_HH 1
45
46 #include <map>
47 #include <vector>
48 #include <CLHEP/Units/SystemOfUnits.h>
49
50 #include "globals.hh"
51 #include "G4DataVector.hh"
52 #include "G4MaterialCutsCouple.hh"
53
54 class G4IInterpolator;
55 class G4IDataSet;
56 class G4Material;
57 class G4Element;
58
59 class G4PixeCrossSectionHandler {
60
61 public:
62
63 G4PixeCrossSectionHandler();
64
65 G4PixeCrossSectionHandler(G4IInterpolator* interpolation,
66 const G4String& modelK="ecpssr",
67 const G4String& modelL="ecpssr",
68 const G4String& modelM="ecpssr",
69 G4double minE = 1*CLHEP::keV,
70 G4double maxE = 0.1*CLHEP::GeV,
71 G4int nBins = 200,
72 G4double unitE = CLHEP::MeV,
73 G4double unitData = CLHEP::barn,
74 G4int minZ = 6, G4int maxZ = 92);
75
76 virtual ~G4PixeCrossSectionHandler();
77
78 void Initialise(G4IInterpolator* interpolation,
79 const G4String& modelK="ecpssr",
80 const G4String& modelL="ecpssr",
81 const G4String& modelM="ecpssr",
82 G4double minE = 1*CLHEP::keV,
83 G4double maxE = 0.1*CLHEP::GeV,
84 G4int nBins = 200,
85 G4double unitE = CLHEP::MeV,
86 G4double unitData = CLHEP::barn,
87 G4int minZ = 6, G4int maxZ = 92);
88
89 G4int SelectRandomAtom(const G4Material* material, G4double e) const;
90
91 G4int SelectRandomShell(G4int Z, G4double e) const;
92
93 G4double FindValue(G4int Z, G4double e) const;
94
95 G4double FindValue(G4int Z, G4double e, G4int shellIndex) const;
96
97 G4double ValueForMaterial(const G4Material* material, G4double e) const;
98
99 // void LoadData(const G4String& dataFile);
100
101 void LoadShellData(const G4String& dataFile);
102
103 // Ionisation cross section as in Geant4 Physics Reference Manual
104 G4double MicroscopicCrossSection(const G4ParticleDefinition* particleDef,
105 G4double kineticEnergy,
106 G4double Z,
107 G4double deltaCut) const;
108
109 void PrintData() const;
110
111 void Clear();
112
113 private:
114
115 // Hide copy constructor and assignment operator
116 G4PixeCrossSectionHandler(const G4PixeCrossSectionHandler&);
117 G4PixeCrossSectionHandler & operator=(const G4PixeCrossSectionHandler &right);
118
119 G4int NumberOfComponents(G4int Z) const;
120
121 void ActiveElements();
122
123 void BuildForMaterials();
124 // Factory method
125 std::vector<G4IDataSet*>* BuildCrossSectionsForMaterials(const G4DataVector& energyVector);
126
127 // Factory method
128 G4IInterpolator* CreateInterpolation();
129
130 const G4IInterpolator* GetInterpolation() const { return interpolation; }
131
132 G4IInterpolator* interpolation;
133
134 G4double eMin;
135 G4double eMax;
136 G4int nBins;
137
138 G4double unit1;
139 G4double unit2;
140
141 G4int zMin;
142 G4int zMax;
143
144 G4DataVector activeZ;
145
146 // Map of PixeShellDataSets with the shell cross sections for each element
147 std::map<G4int,G4IDataSet*,std::less<G4int> > dataMap;
148
149 // Vector of composite cross sections for each material in the MaterialTable
150 // The composite cross section is composed of cross sections for each element in material
151 std::vector<G4IDataSet*>* crossSections;
152
153 std::vector<G4String> crossModel;
154
155 };
156
157 #endif
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