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26 // 26 //
>> 27 // $Id: G4CrossSectionHandler.cc 66241 2012-12-13 18:34:42Z gunter $
27 // 28 //
28 // Author: Maria Grazia Pia (Maria.Grazia.Pia@ 29 // Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
29 // 30 //
30 // History: 31 // History:
31 // ----------- 32 // -----------
32 // 1 Aug 2001 MGP Created 33 // 1 Aug 2001 MGP Created
33 // 19 Jul 2002 VI Create composite d 34 // 19 Jul 2002 VI Create composite data set for material
34 // 24 Apr 2003 VI Cut per region mfp 35 // 24 Apr 2003 VI Cut per region mfpt
35 // 36 //
36 // 15 Jul 2009 Nicolas A. Karakatsanis 37 // 15 Jul 2009 Nicolas A. Karakatsanis
37 // 38 //
38 // - BuildCrossSecti 39 // - BuildCrossSectionForMaterials method was revised in order to calculate the
39 // logarithmic val 40 // logarithmic values of the loaded data.
40 // It retrieves th 41 // It retrieves the data values from the G4EMLOW data files but, then, calculates the
41 // respective log 42 // respective log values and loads them to seperate data structures.
42 // The EM data set 43 // The EM data sets, initialized this way, contain both non-log and log values.
43 // These initializ 44 // These initialized data sets can enhance the computing performance of data interpolation
44 // operations 45 // operations
45 // 46 //
46 // ------------------------------------------- 47 // -------------------------------------------------------------------
47 48
48 #include "G4CrossSectionHandler.hh" 49 #include "G4CrossSectionHandler.hh"
49 #include "G4VDataSetAlgorithm.hh" 50 #include "G4VDataSetAlgorithm.hh"
50 #include "G4VEMDataSet.hh" 51 #include "G4VEMDataSet.hh"
51 #include "G4EMDataSet.hh" 52 #include "G4EMDataSet.hh"
52 #include "G4CompositeEMDataSet.hh" 53 #include "G4CompositeEMDataSet.hh"
53 #include "G4ShellEMDataSet.hh" 54 #include "G4ShellEMDataSet.hh"
54 #include "G4ProductionCutsTable.hh" 55 #include "G4ProductionCutsTable.hh"
55 #include "G4Material.hh" 56 #include "G4Material.hh"
56 #include "G4Element.hh" 57 #include "G4Element.hh"
57 #include "Randomize.hh" 58 #include "Randomize.hh"
58 #include <map> 59 #include <map>
59 #include <vector> 60 #include <vector>
60 61
61 #include "G4LogLogInterpolation.hh" 62 #include "G4LogLogInterpolation.hh"
62 63
63 //....oooOO0OOooo........oooOO0OOooo........oo <<
64 <<
65 G4CrossSectionHandler::G4CrossSectionHandler() 64 G4CrossSectionHandler::G4CrossSectionHandler()
66 { } 65 { }
67 66
68 //....oooOO0OOooo........oooOO0OOooo........oo <<
69 <<
70 G4CrossSectionHandler::~G4CrossSectionHandler( 67 G4CrossSectionHandler::~G4CrossSectionHandler()
71 { } 68 { }
72 69
73 //....oooOO0OOooo........oooOO0OOooo........oo <<
74 <<
75 std::vector<G4VEMDataSet*>* 70 std::vector<G4VEMDataSet*>*
76 G4CrossSectionHandler::BuildCrossSectionsForMa 71 G4CrossSectionHandler::BuildCrossSectionsForMaterials(const G4DataVector& energyVector,
77 const G4DataVector*) 72 const G4DataVector*)
78 { 73 {
79 G4DataVector* energies; 74 G4DataVector* energies;
80 G4DataVector* data; 75 G4DataVector* data;
81 76
82 G4DataVector* log_energies; 77 G4DataVector* log_energies;
83 G4DataVector* log_data; 78 G4DataVector* log_data;
84 79
85 std::vector<G4VEMDataSet*>* matCrossSections 80 std::vector<G4VEMDataSet*>* matCrossSections = new std::vector<G4VEMDataSet*>;
86 81
87 const G4ProductionCutsTable* theCoupleTable= 82 const G4ProductionCutsTable* theCoupleTable=
88 G4ProductionCutsTable::GetProductionCu 83 G4ProductionCutsTable::GetProductionCutsTable();
89 G4int numOfCouples = (G4int)theCoupleTable-> << 84 size_t numOfCouples = theCoupleTable->GetTableSize();
90 85
91 std::size_t nOfBins = energyVector.size(); << 86 size_t nOfBins = energyVector.size();
92 const G4VDataSetAlgorithm* interpolationAlgo 87 const G4VDataSetAlgorithm* interpolationAlgo = CreateInterpolation();
93 88
94 for (G4int mLocal=0; mLocal<numOfCouples; ++ << 89 for (size_t mLocal=0; mLocal<numOfCouples; mLocal++)
95 { 90 {
96 const G4MaterialCutsCouple* couple = the 91 const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(mLocal);
97 const G4Material* material= couple->GetM 92 const G4Material* material= couple->GetMaterial();
98 G4int nElements = (G4int)material->GetNu << 93 G4int nElements = material->GetNumberOfElements();
99 const G4ElementVector* elementVector = m 94 const G4ElementVector* elementVector = material->GetElementVector();
100 const G4double* nAtomsPerVolume = materi 95 const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
101 96
102 G4VDataSetAlgorithm* algo = interpolatio 97 G4VDataSetAlgorithm* algo = interpolationAlgo->Clone();
103 98
104 G4VEMDataSet* setForMat = new G4Composit 99 G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.);
105 100
106 for (G4int i=0; i<nElements; ++i) { << 101 for (G4int i=0; i<nElements; i++) {
107 102
108 G4int Z = (G4int) (*elementVector)[i]- 103 G4int Z = (G4int) (*elementVector)[i]->GetZ();
109 G4double density = nAtomsPerVolume[i]; 104 G4double density = nAtomsPerVolume[i];
110 105
111 energies = new G4DataVector; 106 energies = new G4DataVector;
112 data = new G4DataVector; 107 data = new G4DataVector;
113 108
114 log_energies = new G4DataVector; 109 log_energies = new G4DataVector;
115 log_data = new G4DataVector; 110 log_data = new G4DataVector;
116 111
117 for (std::size_t bin=0; bin<nOfBins; + << 112
>> 113 for (size_t bin=0; bin<nOfBins; bin++)
118 { 114 {
119 G4double e = energyVector[bin]; 115 G4double e = energyVector[bin];
120 energies->push_back(e); 116 energies->push_back(e);
121 if (e==0.) e=1e-300; 117 if (e==0.) e=1e-300;
122 log_energies->push_back(std::log10 118 log_energies->push_back(std::log10(e));
123 G4double cross = density*FindValue(Z,e); 119 G4double cross = density*FindValue(Z,e);
124 data->push_back(cross); 120 data->push_back(cross);
125 if (cross==0.) cross=1e-300; 121 if (cross==0.) cross=1e-300;
126 log_data->push_back(std::log10(cro 122 log_data->push_back(std::log10(cross));
127 } 123 }
128 124
129 G4VDataSetAlgorithm* algo1 = interpola 125 G4VDataSetAlgorithm* algo1 = interpolationAlgo->Clone();
>> 126
>> 127 // G4VEMDataSet* elSet = new G4EMDataSet(i,energies,data,algo1,1.,1.);
>> 128
130 G4VEMDataSet* elSet = new G4EMDataSet( 129 G4VEMDataSet* elSet = new G4EMDataSet(i,energies,data,log_energies,log_data,algo1,1.,1.);
131 130
132 setForMat->AddComponent(elSet); 131 setForMat->AddComponent(elSet);
133 } 132 }
134 133
135 matCrossSections->push_back(setForMat); 134 matCrossSections->push_back(setForMat);
136 } 135 }
137 delete interpolationAlgo; 136 delete interpolationAlgo;
138 return matCrossSections; 137 return matCrossSections;
139 } 138 }
140 139
141 140