| Geant4 Cross Reference |
1 //
2 // ********************************************************************
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17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
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24 // ********************************************************************
25 //
26 //
27 //
28 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
29 //
30 // History:
31 // -----------
32 // 1 Aug 2001 MGP Created
33 // 19 Jul 2002 VI Create composite data set for material
34 // 24 Apr 2003 VI Cut per region mfpt
35 //
36 // -------------------------------------------------------------------
37
38 #include "G4RDCrossSectionHandler.hh"
39 #include "G4RDVDataSetAlgorithm.hh"
40 #include "G4RDVEMDataSet.hh"
41 #include "G4RDEMDataSet.hh"
42 #include "G4RDCompositeEMDataSet.hh"
43 #include "G4RDShellEMDataSet.hh"
44 #include "G4ProductionCutsTable.hh"
45 #include "G4Material.hh"
46 #include "G4Element.hh"
47 #include "Randomize.hh"
48 #include <map>
49 #include <vector>
50
51 #include "G4RDLogLogInterpolation.hh"
52
53 G4RDCrossSectionHandler::G4RDCrossSectionHandler()
54 { }
55
56 G4RDCrossSectionHandler::~G4RDCrossSectionHandler()
57 { }
58
59 std::vector<G4RDVEMDataSet*>*
60 G4RDCrossSectionHandler::BuildCrossSectionsForMaterials(const G4DataVector& energyVector,
61 const G4DataVector*)
62 {
63 G4DataVector* energies;
64 G4DataVector* data;
65
66 std::vector<G4RDVEMDataSet*>* matCrossSections = new std::vector<G4RDVEMDataSet*>;
67
68 const G4ProductionCutsTable* theCoupleTable=
69 G4ProductionCutsTable::GetProductionCutsTable();
70 size_t numOfCouples = theCoupleTable->GetTableSize();
71
72 size_t nOfBins = energyVector.size();
73 const G4RDVDataSetAlgorithm* interpolationAlgo = CreateInterpolation();
74
75 for (size_t m=0; m<numOfCouples; m++)
76 {
77 const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m);
78 const G4Material* material= couple->GetMaterial();
79 G4int nElements = material->GetNumberOfElements();
80 const G4ElementVector* elementVector = material->GetElementVector();
81 const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
82
83 G4RDVDataSetAlgorithm* algo = interpolationAlgo->Clone();
84
85 G4RDVEMDataSet* setForMat = new G4RDCompositeEMDataSet(algo,1.,1.);
86
87 for (G4int i=0; i<nElements; i++) {
88
89 G4int Z = (G4int) (*elementVector)[i]->GetZ();
90 G4double density = nAtomsPerVolume[i];
91
92 energies = new G4DataVector;
93 data = new G4DataVector;
94
95
96 for (size_t bin=0; bin<nOfBins; bin++)
97 {
98 G4double e = energyVector[bin];
99 energies->push_back(e);
100 G4double cross = density*FindValue(Z,e);
101 data->push_back(cross);
102 }
103
104 G4RDVDataSetAlgorithm* algo1 = interpolationAlgo->Clone();
105 G4RDVEMDataSet* elSet = new G4RDEMDataSet(i,energies,data,algo1,1.,1.);
106 setForMat->AddComponent(elSet);
107 }
108
109 matCrossSections->push_back(setForMat);
110 }
111 return matCrossSections;
112 }
113
114