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G4RDeIonisationCrossSectionHandler.cc
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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4RDeIonisationCrossSectionHandler
33 //
34 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
35 //
36 // Creation date: 25 Sept 2001
37 //
38 // Modifications:
39 // 10 Oct 2001 M.G. Pia Revision to improve code quality and consistency with design
40 // 19 Jul 2002 VI Create composite data set for material
41 // 21 Jan 2003 V.Ivanchenko Cut per region
42 //
43 // -------------------------------------------------------------------
44 
46 #include "G4PhysicalConstants.hh"
47 #include "G4SystemOfUnits.hh"
48 #include "G4RDVEnergySpectrum.hh"
49 #include "G4DataVector.hh"
51 #include "G4RDVDataSetAlgorithm.hh"
54 #include "G4RDVEMDataSet.hh"
55 #include "G4RDEMDataSet.hh"
56 #include "G4Material.hh"
57 #include "G4ProductionCutsTable.hh"
58 
59 
64  theParam(spec)
65 {
66  G4RDVCrossSectionHandler::Initialise(alg, emin, emax, nbin);
68 }
69 
70 
72 {
73  delete interp;
74 }
75 
76 
78  const G4DataVector& energyVector,
79  const G4DataVector* energyCuts)
80 {
81  G4int verbose = 0;
82  std::vector<G4RDVEMDataSet*>* set = new std::vector<G4RDVEMDataSet*>;
83 
84  G4DataVector* energies;
85  G4DataVector* cs;
86  G4int nOfBins = energyVector.size();
87 
88  const G4ProductionCutsTable* theCoupleTable=
90  size_t numOfCouples = theCoupleTable->GetTableSize();
91 
92  for (size_t m=0; m<numOfCouples; m++) {
93 
94  const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m);
95  const G4Material* material= couple->GetMaterial();
96  const G4ElementVector* elementVector = material->GetElementVector();
97  const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
98  G4int nElements = material->GetNumberOfElements();
99 
100  if(verbose > 0) {
101  G4cout << "eIonisation CS for " << m << "th material "
102  << material->GetName()
103  << " eEl= " << nElements << G4endl;
104  }
105 
106  G4double tcut = (*energyCuts)[m];
107 
109  G4RDVEMDataSet* setForMat = new G4RDCompositeEMDataSet(algo,1.,1.);
110 
111  for (G4int i=0; i<nElements; i++) {
112 
113  G4int Z = (G4int) (*elementVector)[i]->GetZ();
114  G4int nShells = NumberOfComponents(Z);
115  energies = new G4DataVector;
116  cs = new G4DataVector;
117  G4double density = nAtomsPerVolume[i];
118 
119  for (G4int bin=0; bin<nOfBins; bin++) {
120 
121  G4double e = energyVector[bin];
122  energies->push_back(e);
123  G4double value = 0.0;
124 
125  if(e > tcut) {
126  for (G4int n=0; n<nShells; n++) {
127  G4double cross = FindValue(Z, e, n);
128  G4double p = theParam->Probability(Z, tcut, e, e, n);
129  value += cross * p * density;
130 
131  if(verbose>0 && m == 0 && e>=1. && e<=0.) {
132  G4cout << "G4eIonCrossSH: e(MeV)= " << e/MeV
133  << " n= " << n
134  << " cross= " << cross
135  << " p= " << p
136  << " value= " << value
137  << " tcut(MeV)= " << tcut/MeV
138  << " rho= " << density
139  << " Z= " << Z
140  << G4endl;
141  }
142 
143  }
144  }
145  cs->push_back(value);
146  }
148  G4RDVEMDataSet* elSet = new G4RDEMDataSet(i,energies,cs,algo,1.,1.);
149  setForMat->AddComponent(elSet);
150  }
151  set->push_back(setForMat);
152  }
153 
154  return set;
155 }
156 
157