Geant4 11.1.1
Toolkit for the simulation of the passage of particles through matter
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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)
 
G4eIonisationCrossSectionHandleroperator= (const G4eIonisationCrossSectionHandler &right)=delete
 
 G4eIonisationCrossSectionHandler (const G4eIonisationCrossSectionHandler &)=delete
 
- 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=nullptr, 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 G4ElementSelectRandomElement (const G4MaterialCutsCouple *material, G4double e) const
 
G4int SelectRandomShell (G4int Z, G4double e) const
 
G4VEMDataSetBuildMeanFreePathForMaterials (const G4DataVector *energyCuts=nullptr)
 
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 ()
 
 G4VCrossSectionHandler (const G4VCrossSectionHandler &)=delete
 
G4VCrossSectionHandleroperator= (const G4VCrossSectionHandler &right)=delete
 

Protected Member Functions

std::vector< G4VEMDataSet * > * BuildCrossSectionsForMaterials (const G4DataVector &energyVector, const G4DataVector *energyCuts) override
 
- Protected Member Functions inherited from G4VCrossSectionHandler
G4int NumberOfComponents (G4int Z) const
 
void ActiveElements ()
 
virtual std::vector< G4VEMDataSet * > * BuildCrossSectionsForMaterials (const G4DataVector &energyVector, const G4DataVector *energyCuts=nullptr)=0
 
virtual G4VDataSetAlgorithmCreateInterpolation ()
 
const G4VDataSetAlgorithmGetInterpolation () const
 

Detailed Description

Definition at line 59 of file G4eIonisationCrossSectionHandler.hh.

Constructor & Destructor Documentation

◆ G4eIonisationCrossSectionHandler() [1/2]

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

Definition at line 72 of file G4eIonisationCrossSectionHandler.cc.

76 theParam(spec),verbose(0)
77{
78 G4VCrossSectionHandler::Initialise(alg, emin, emax, nbin);
79 interp = new G4LinLogLogInterpolation();
80}
void Initialise(G4VDataSetAlgorithm *interpolation=nullptr, 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)

◆ ~G4eIonisationCrossSectionHandler()

G4eIonisationCrossSectionHandler::~G4eIonisationCrossSectionHandler ( )

Definition at line 84 of file G4eIonisationCrossSectionHandler.cc.

85{
86 delete interp;
87}

◆ G4eIonisationCrossSectionHandler() [2/2]

G4eIonisationCrossSectionHandler::G4eIonisationCrossSectionHandler ( const G4eIonisationCrossSectionHandler )
delete

Member Function Documentation

◆ BuildCrossSectionsForMaterials()

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

Implements G4VCrossSectionHandler.

Definition at line 91 of file G4eIonisationCrossSectionHandler.cc.

94{
95 std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>;
96
97 G4DataVector* energies;
98 G4DataVector* cs;
99
100 G4DataVector* log_energies;
101 G4DataVector* log_cs;
102
103 std::size_t nOfBins = energyVector.size();
104
105 const G4ProductionCutsTable* theCoupleTable=
107 G4int numOfCouples = (G4int)theCoupleTable->GetTableSize();
108
109 for (G4int mLocal=0; mLocal<numOfCouples; ++mLocal) {
110
111 const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(mLocal);
112 const G4Material* material= couple->GetMaterial();
113 const G4ElementVector* elementVector = material->GetElementVector();
114 const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
115 G4int nElements = (G4int)material->GetNumberOfElements();
116
117 if(verbose > 0)
118 {
119 G4cout << "eIonisation CS for " << mLocal << "th material "
120 << material->GetName()
121 << " eEl= " << nElements << G4endl;
122 }
123
124 G4double tcut = (*energyCuts)[mLocal];
125
126 G4VDataSetAlgorithm* algo = interp->Clone();
127 G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.);
128
129 for (G4int i=0; i<nElements; ++i) {
130
131 G4int Z = (G4int) (*elementVector)[i]->GetZ();
132 G4int nShells = NumberOfComponents(Z);
133
134 energies = new G4DataVector;
135 cs = new G4DataVector;
136
137 log_energies = new G4DataVector;
138 log_cs = new G4DataVector;
139
140 G4double density = nAtomsPerVolume[i];
141
142 for (std::size_t bin=0; bin<nOfBins; ++bin) {
143
144 G4double e = energyVector[bin];
145 energies->push_back(e);
146 log_energies->push_back(std::log10(e));
147 G4double value = 0.0;
148 G4double log_value = -300;
149
150 if(e > tcut) {
151 for (G4int n=0; n<nShells; n++) {
152 G4double cross = FindValue(Z, e, n);
153 G4double p = theParam->Probability(Z, tcut, e, e, n);
154 value += cross * p * density;
155
156 if(verbose>0 && mLocal == 0 && e>=1. && e<=0.)
157 {
158 G4cout << "G4eIonCrossSH: e(MeV)= " << e/MeV
159 << " n= " << n
160 << " cross= " << cross
161 << " p= " << p
162 << " value= " << value
163 << " tcut(MeV)= " << tcut/MeV
164 << " rho= " << density
165 << " Z= " << Z
166 << G4endl;
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 G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,log_energies,log_cs,algoLocal,1.,1.);
177
178 setForMat->AddComponent(elSet);
179 }
180 set->push_back(setForMat);
181 }
182
183 return set;
184}
std::vector< const G4Element * > G4ElementVector
double G4double
Definition: G4Types.hh:83
int G4int
Definition: G4Types.hh:85
const G4int Z[17]
#define G4endl
Definition: G4ios.hh:57
G4GLOB_DLL std::ostream G4cout
const G4Material * GetMaterial() const
const G4ElementVector * GetElementVector() const
Definition: G4Material.hh:185
size_t GetNumberOfElements() const
Definition: G4Material.hh:181
const G4double * GetAtomicNumDensityVector() const
Definition: G4Material.hh:211
const G4String & GetName() const
Definition: G4Material.hh:172
const G4MaterialCutsCouple * GetMaterialCutsCouple(G4int i) const
std::size_t GetTableSize() const
static G4ProductionCutsTable * GetProductionCutsTable()
G4double FindValue(G4int Z, G4double e) const
G4int NumberOfComponents(G4int Z) const
virtual G4VDataSetAlgorithm * Clone() const =0
virtual void AddComponent(G4VEMDataSet *dataSet)=0
virtual G4double Probability(G4int Z, G4double minKineticEnergy, G4double maxKineticEnergy, G4double kineticEnergy, G4int shell=0, const G4ParticleDefinition *pd=nullptr) const =0

◆ GetCrossSectionAboveThresholdForElement()

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

Definition at line 188 of file G4eIonisationCrossSectionHandler.cc.

191{
192 G4int nShells = NumberOfComponents(Z);
193 G4double value = 0.;
194 if(energy > cutEnergy)
195 {
196 for (G4int n=0; n<nShells; ++n) {
197 G4double cross = FindValue(Z, energy, n);
198 G4double p = theParam->Probability(Z, cutEnergy, energy, energy, n);
199 value += cross * p;
200 }
201 }
202 return value;
203}

Referenced by G4LivermoreIonisationModel::ComputeCrossSectionPerAtom().

◆ operator=()

G4eIonisationCrossSectionHandler & G4eIonisationCrossSectionHandler::operator= ( const G4eIonisationCrossSectionHandler right)
delete

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