Geant4 9.6.0
Toolkit for the simulation of the passage of particles through matter
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Public Member Functions | Protected Member Functions | List of all members
G4eIonisationCrossSectionHandler Class Reference

#include <G4eIonisationCrossSectionHandler.hh>

+ Inheritance diagram for G4eIonisationCrossSectionHandler:

Public Member Functions

 G4eIonisationCrossSectionHandler (const G4VEnergySpectrum *spec, G4VDataSetAlgorithm *alg, G4double emin, G4double emax, G4int nbin)
 
 ~G4eIonisationCrossSectionHandler ()
 
G4double GetCrossSectionAboveThresholdForElement (G4double energy, G4double cutEnergy, G4int Z)
 
- Public Member Functions inherited from G4VCrossSectionHandler
 G4VCrossSectionHandler ()
 
 G4VCrossSectionHandler (G4VDataSetAlgorithm *interpolation, G4double minE=250 *CLHEP::eV, G4double maxE=100 *CLHEP::GeV, G4int nBins=200, G4double unitE=CLHEP::MeV, G4double unitData=CLHEP::barn, G4int minZ=1, G4int maxZ=99)
 
virtual ~G4VCrossSectionHandler ()
 
void Initialise (G4VDataSetAlgorithm *interpolation=0, G4double minE=250 *CLHEP::eV, G4double maxE=100 *CLHEP::GeV, G4int numberOfBins=200, G4double unitE=CLHEP::MeV, G4double unitData=CLHEP::barn, G4int minZ=1, G4int maxZ=99)
 
G4int SelectRandomAtom (const G4MaterialCutsCouple *couple, G4double e) const
 
const G4Element * SelectRandomElement (const G4MaterialCutsCouple *material, G4double e) const
 
G4int SelectRandomShell (G4int Z, G4double e) const
 
G4VEMDataSet * BuildMeanFreePathForMaterials (const G4DataVector *energyCuts=0)
 
G4double FindValue (G4int Z, G4double e) const
 
G4double FindValue (G4int Z, G4double e, G4int shellIndex) const
 
G4double ValueForMaterial (const G4Material *material, G4double e) const
 
void LoadData (const G4String &dataFile)
 
void LoadNonLogData (const G4String &dataFile)
 
void LoadShellData (const G4String &dataFile)
 
void PrintData () const
 
void Clear ()
 

Protected Member Functions

std::vector< G4VEMDataSet * > * BuildCrossSectionsForMaterials (const G4DataVector &energyVector, const G4DataVector *energyCuts)
 
- Protected Member Functions inherited from G4VCrossSectionHandler
G4int NumberOfComponents (G4int Z) const
 
void ActiveElements ()
 
virtual std::vector< G4VEMDataSet * > * BuildCrossSectionsForMaterials (const G4DataVector &energyVector, const G4DataVector *energyCuts=0)=0
 
virtual G4VDataSetAlgorithm * CreateInterpolation ()
 
const G4VDataSetAlgorithm * GetInterpolation () const
 

Detailed Description

Definition at line 63 of file G4eIonisationCrossSectionHandler.hh.

Constructor & Destructor Documentation

◆ G4eIonisationCrossSectionHandler()

G4eIonisationCrossSectionHandler::G4eIonisationCrossSectionHandler ( const G4VEnergySpectrum *  spec,
G4VDataSetAlgorithm *  alg,
G4double  emin,
G4double  emax,
G4int  nbin 
)

Definition at line 73 of file G4eIonisationCrossSectionHandler.cc.

76 : G4VCrossSectionHandler(),
77 theParam(spec),verbose(0)
78{
79 G4VCrossSectionHandler::Initialise(alg, emin, emax, nbin);
80 interp = new G4LinLogLogInterpolation();
81}
G4VCrossSectionHandler::Initialise
void Initialise(G4VDataSetAlgorithm *interpolation=0, G4double minE=250 *CLHEP::eV, G4double maxE=100 *CLHEP::GeV, G4int numberOfBins=200, G4double unitE=CLHEP::MeV, G4double unitData=CLHEP::barn, G4int minZ=1, G4int maxZ=99)
Definition: G4VCrossSectionHandler.cc:140

◆ ~G4eIonisationCrossSectionHandler()

G4eIonisationCrossSectionHandler::~G4eIonisationCrossSectionHandler ( )

Definition at line 84 of file G4eIonisationCrossSectionHandler.cc.

85{
86 delete interp;
87}

Member Function Documentation

◆ BuildCrossSectionsForMaterials()

std::vector< G4VEMDataSet * > * G4eIonisationCrossSectionHandler::BuildCrossSectionsForMaterials ( const G4DataVector &  energyVector,
const G4DataVector *  energyCuts 
)
protectedvirtual

Implements G4VCrossSectionHandler.

Definition at line 90 of file G4eIonisationCrossSectionHandler.cc.

93{
94 std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>;
95
96 G4DataVector* energies;
97 G4DataVector* cs;
98
99 G4DataVector* log_energies;
100 G4DataVector* log_cs;
101
102 G4int nOfBins = energyVector.size();
103
104 const G4ProductionCutsTable* theCoupleTable=
105 G4ProductionCutsTable::GetProductionCutsTable();
106 size_t numOfCouples = theCoupleTable->GetTableSize();
107
108 for (size_t mLocal=0; mLocal<numOfCouples; mLocal++) {
109
110 const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(mLocal);
111 const G4Material* material= couple->GetMaterial();
112 const G4ElementVector* elementVector = material->GetElementVector();
113 const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
114 G4int nElements = material->GetNumberOfElements();
115
116 if(verbose > 0)
117 {
118 G4cout << "eIonisation CS for " << mLocal << "th material "
119 << material->GetName()
120 << " eEl= " << nElements << G4endl;
121 }
122
123 G4double tcut = (*energyCuts)[mLocal];
124
125 G4VDataSetAlgorithm* algo = interp->Clone();
126 G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.);
127
128 for (G4int i=0; i<nElements; i++) {
129
130 G4int Z = (G4int) (*elementVector)[i]->GetZ();
131 G4int nShells = NumberOfComponents(Z);
132
133 energies = new G4DataVector;
134 cs = new G4DataVector;
135
136 log_energies = new G4DataVector;
137 log_cs = new G4DataVector;
138
139 G4double density = nAtomsPerVolume[i];
140
141 for (G4int bin=0; bin<nOfBins; bin++) {
142
143 G4double e = energyVector[bin];
144 energies->push_back(e);
145 log_energies->push_back(std::log10(e));
146 G4double value = 0.0;
147 G4double log_value = -300;
148
149 if(e > tcut) {
150 for (G4int n=0; n<nShells; n++) {
151 G4double cross = FindValue(Z, e, n);
152 G4double p = theParam->Probability(Z, tcut, e, e, n);
153 value += cross * p * density;
154
155 if(verbose>0 && mLocal == 0 && e>=1. && e<=0.)
156 {
157 G4cout << "G4eIonCrossSH: e(MeV)= " << e/MeV
158 << " n= " << n
159 << " cross= " << cross
160 << " p= " << p
161 << " value= " << value
162 << " tcut(MeV)= " << tcut/MeV
163 << " rho= " << density
164 << " Z= " << Z
165 << G4endl;
166 }
167
168 }
169 if (value == 0.) value = 1e-300;
170 log_value = std::log10(value);
171 }
172 cs->push_back(value);
173 log_cs->push_back(log_value);
174 }
175 G4VDataSetAlgorithm* algoLocal = interp->Clone();
176
177 //G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,algoLocal,1.,1.);
178
179 G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,log_energies,log_cs,algoLocal,1.,1.);
180
181 setForMat->AddComponent(elSet);
182 }
183 set->push_back(setForMat);
184 }
185
186 return set;
187}
G4ElementVector
std::vector< G4Element * > G4ElementVector
Definition: G4ElementVector.hh:44
G4double
double G4double
Definition: G4Types.hh:64
G4int
int G4int
Definition: G4Types.hh:66
G4endl
#define G4endl
Definition: G4ios.hh:52
G4cout
G4DLLIMPORT std::ostream G4cout
G4MaterialCutsCouple::GetMaterial
const G4Material * GetMaterial() const
Definition: G4MaterialCutsCouple.hh:150
G4Material::GetElementVector
const G4ElementVector * GetElementVector() const
Definition: G4Material.hh:189
G4Material::GetNumberOfElements
size_t GetNumberOfElements() const
Definition: G4Material.hh:185
G4Material::GetAtomicNumDensityVector
const G4double * GetAtomicNumDensityVector() const
Definition: G4Material.hh:215
G4Material::GetName
const G4String & GetName() const
Definition: G4Material.hh:177
G4ProductionCutsTable::GetMaterialCutsCouple
const G4MaterialCutsCouple * GetMaterialCutsCouple(G4int i) const
Definition: G4ProductionCutsTable.hh:262
G4ProductionCutsTable::GetProductionCutsTable
static G4ProductionCutsTable * GetProductionCutsTable()
Definition: G4ProductionCutsTable.cc:63
G4VCrossSectionHandler::FindValue
G4double FindValue(G4int Z, G4double e) const
Definition: G4VCrossSectionHandler.cc:379
G4VCrossSectionHandler::NumberOfComponents
G4int NumberOfComponents(G4int Z) const
Definition: G4VCrossSectionHandler.cc:728
G4VDataSetAlgorithm::Clone
virtual G4VDataSetAlgorithm * Clone() const =0
G4VEMDataSet::AddComponent
virtual void AddComponent(G4VEMDataSet *dataSet)=0
G4VEnergySpectrum::Probability
virtual G4double Probability(G4int Z, G4double minKineticEnergy, G4double maxKineticEnergy, G4double kineticEnergy, G4int shell=0, const G4ParticleDefinition *pd=0) const =0

◆ GetCrossSectionAboveThresholdForElement()

G4double G4eIonisationCrossSectionHandler::GetCrossSectionAboveThresholdForElement ( G4double  energy,
G4double  cutEnergy,
G4int  Z 
)

Definition at line 189 of file G4eIonisationCrossSectionHandler.cc.

192{
193 G4int nShells = NumberOfComponents(Z);
194 G4double value = 0.;
195 if(energy > cutEnergy)
196 {
197 for (G4int n=0; n<nShells; n++) {
198 G4double cross = FindValue(Z, energy, n);
199 G4double p = theParam->Probability(Z, cutEnergy, energy, energy, n);
200 value += cross * p;
201 }
202 }
203 return value;
204}

Referenced by G4LivermoreIonisationModel::ComputeCrossSectionPerAtom().

The documentation for this class was generated from the following files: