#include <G4eIonisationCrossSectionHandler.hh>

Inheritance diagram for G4eIonisationCrossSectionHandler:

Collaboration 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 G4VDataSetAlgorithm *	CreateInterpolation ()

const G4VDataSetAlgorithm *	GetInterpolation () const

Detailed Description

Definition at line 63 of file G4eIonisationCrossSectionHandler.hh.

Constructor & Destructor Documentation

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

Definition at line 73 of file G4eIonisationCrossSectionHandler.cc.

  :  G4VCrossSectionHandler(),
     theParam(spec),verbose(0)
 {
   G4VCrossSectionHandler::Initialise(alg, emin, emax, nbin);
   interp = new G4LinLogLogInterpolation();
 }

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G4eIonisationCrossSectionHandler::~G4eIonisationCrossSectionHandler ( )

Definition at line 84 of file G4eIonisationCrossSectionHandler.cc.

 {
   delete interp;
 }

Member Function Documentation

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

protectedvirtual

Implements G4VCrossSectionHandler.

Definition at line 90 of file G4eIonisationCrossSectionHandler.cc.

 {
   std::vector<G4VEMDataSet*>* set = new std::vector<G4VEMDataSet*>;
 
   G4DataVector* energies;
   G4DataVector* cs;
 
   G4DataVector* log_energies;
   G4DataVector* log_cs;
 
   G4int nOfBins = energyVector.size();
 
   const G4ProductionCutsTable* theCoupleTable=
         G4ProductionCutsTable::GetProductionCutsTable();
   size_t numOfCouples = theCoupleTable->GetTableSize();
 
   for (size_t mLocal=0; mLocal<numOfCouples; mLocal++) {
 
     const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(mLocal);
     const G4Material* material= couple->GetMaterial();
     const G4ElementVector* elementVector = material->GetElementVector();
     const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
     G4int nElements = material->GetNumberOfElements();
 
     if(verbose > 0) 
       {
     G4cout << "eIonisation CS for " << mLocal << "th material "
            << material->GetName()
            << "  eEl= " << nElements << G4endl;
       }
 
     G4double tcut  = (*energyCuts)[mLocal];
 
     G4VDataSetAlgorithm* algo = interp->Clone();
     G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.);
 
     for (G4int i=0; i<nElements; i++) {
 
       G4int Z = (G4int) (*elementVector)[i]->GetZ();
       G4int nShells = NumberOfComponents(Z);
 
       energies = new G4DataVector;
       cs       = new G4DataVector;
 
       log_energies = new G4DataVector;
       log_cs       = new G4DataVector;
 
       G4double density = nAtomsPerVolume[i];
 
       for (G4int bin=0; bin<nOfBins; bin++) {
 
         G4double e = energyVector[bin];
         energies->push_back(e);
         log_energies->push_back(std::log10(e));
         G4double value = 0.0;
         G4double log_value = -300;
 
         if(e > tcut) {
           for (G4int n=0; n<nShells; n++) {
             G4double cross = FindValue(Z, e, n);
             G4double p = theParam->Probability(Z, tcut, e, e, n);
             value += cross * p * density;
 
         if(verbose>0 && mLocal == 0 && e>=1. && e<=0.) 
         {
               G4cout << "G4eIonCrossSH: e(MeV)= " << e/MeV
                      << " n= " << n
                      << " cross= " << cross
                      << " p= " << p
                      << " value= " << value
                      << " tcut(MeV)= " << tcut/MeV
                      << " rho= " << density
                      << " Z= " << Z
                      << G4endl;
           }
 
       }
           if (value == 0.) value = 1e-300;
           log_value = std::log10(value);
     }
         cs->push_back(value);
         log_cs->push_back(log_value);
       }
       G4VDataSetAlgorithm* algoLocal = interp->Clone();
 
       //G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,algoLocal,1.,1.);
 
       G4VEMDataSet* elSet = new G4EMDataSet(i,energies,cs,log_energies,log_cs,algoLocal,1.,1.);
 
       setForMat->AddComponent(elSet);
     }
     set->push_back(setForMat);
   }
 
   return set;
 }

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

Definition at line 189 of file G4eIonisationCrossSectionHandler.cc.

 {
   G4int nShells = NumberOfComponents(Z);
   G4double value = 0.;
   if(energy > cutEnergy) 
     {
       for (G4int n=0; n<nShells; n++) {
     G4double cross = FindValue(Z, energy, n);
     G4double p = theParam->Probability(Z, cutEnergy, energy, energy, n);
     value += cross * p;
       }
     }
   return value;
 }

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

source/geant4.10.03.p03/source/processes/electromagnetic/lowenergy/include/G4eIonisationCrossSectionHandler.hh
source/geant4.10.03.p03/source/processes/electromagnetic/lowenergy/src/G4eIonisationCrossSectionHandler.cc

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation