#include <G4DNABornIonisationModel.hh>

Inheritance diagram for G4DNABornIonisationModel:

Public Member Functions
	G4DNABornIonisationModel (const G4ParticleDefinition *p=0, const G4String &nam="DNABornIonisationModel")

virtual	~G4DNABornIonisationModel ()

virtual void	Initialise (const G4ParticleDefinition , const G4DataVector &=(new G4DataVector()))

virtual G4double	CrossSectionPerVolume (const G4Material material, const G4ParticleDefinition p, G4double ekin, G4double emin, G4double emax)

virtual void	SampleSecondaries (std::vector< G4DynamicParticle * > , const G4MaterialCutsCouple , const G4DynamicParticle *, G4double tmin, G4double maxEnergy)

double	DifferentialCrossSection (G4ParticleDefinition *aParticleDefinition, G4double k, G4double energyTransfer, G4int shell)

void	SelectFasterComputation (G4bool input)

Public Member Functions inherited from G4VEmModel
	G4VEmModel (const G4String &nam)

virtual	~G4VEmModel ()

virtual void	InitialiseLocal (const G4ParticleDefinition , G4VEmModel masterModel)

virtual void	InitialiseForMaterial (const G4ParticleDefinition , const G4Material )

virtual void	InitialiseForElement (const G4ParticleDefinition *, G4int Z)

virtual G4double	ComputeDEDXPerVolume (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy=DBL_MAX)

virtual G4double	ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A=0., G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)

virtual G4double	ChargeSquareRatio (const G4Track &)

virtual G4double	GetChargeSquareRatio (const G4ParticleDefinition , const G4Material , G4double kineticEnergy)

virtual G4double	GetParticleCharge (const G4ParticleDefinition , const G4Material , G4double kineticEnergy)

virtual void	StartTracking (G4Track *)

virtual void	CorrectionsAlongStep (const G4MaterialCutsCouple , const G4DynamicParticle , G4double &eloss, G4double &niel, G4double length)

virtual G4double	Value (const G4MaterialCutsCouple , const G4ParticleDefinition , G4double kineticEnergy)

virtual G4double	MinPrimaryEnergy (const G4Material , const G4ParticleDefinition , G4double cut=0.0)

virtual G4double	MinEnergyCut (const G4ParticleDefinition , const G4MaterialCutsCouple )

virtual void	SetupForMaterial (const G4ParticleDefinition , const G4Material , G4double kineticEnergy)

virtual void	DefineForRegion (const G4Region *)

void	InitialiseElementSelectors (const G4ParticleDefinition *, const G4DataVector &)

std::vector < G4EmElementSelector * > *	GetElementSelectors ()

void	SetElementSelectors (std::vector< G4EmElementSelector * > *)

G4double	ComputeDEDX (const G4MaterialCutsCouple , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy=DBL_MAX)

G4double	CrossSection (const G4MaterialCutsCouple , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)

G4double	ComputeMeanFreePath (const G4ParticleDefinition , G4double kineticEnergy, const G4Material , G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)

G4double	ComputeCrossSectionPerAtom (const G4ParticleDefinition , const G4Element , G4double kinEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)

G4int	SelectIsotopeNumber (const G4Element *)

const G4Element *	SelectRandomAtom (const G4MaterialCutsCouple , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)

const G4Element *	SelectRandomAtom (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)

G4int	SelectRandomAtomNumber (const G4Material *)

void	SetParticleChange (G4VParticleChange , G4VEmFluctuationModel f=0)

void	SetCrossSectionTable (G4PhysicsTable *, G4bool isLocal)

G4ElementData *	GetElementData ()

G4PhysicsTable *	GetCrossSectionTable ()

G4VEmFluctuationModel *	GetModelOfFluctuations ()

G4VEmAngularDistribution *	GetAngularDistribution ()

void	SetAngularDistribution (G4VEmAngularDistribution *)

G4double	HighEnergyLimit () const

G4double	LowEnergyLimit () const

G4double	HighEnergyActivationLimit () const

G4double	LowEnergyActivationLimit () const

G4double	PolarAngleLimit () const

G4double	SecondaryThreshold () const

G4bool	LPMFlag () const

G4bool	DeexcitationFlag () const

G4bool	ForceBuildTableFlag () const

G4bool	UseAngularGeneratorFlag () const

void	SetAngularGeneratorFlag (G4bool)

void	SetHighEnergyLimit (G4double)

void	SetLowEnergyLimit (G4double)

void	SetActivationHighEnergyLimit (G4double)

void	SetActivationLowEnergyLimit (G4double)

G4bool	IsActive (G4double kinEnergy)

void	SetPolarAngleLimit (G4double)

void	SetSecondaryThreshold (G4double)

void	SetLPMFlag (G4bool val)

void	SetDeexcitationFlag (G4bool val)

void	SetForceBuildTable (G4bool val)

void	SetMasterThread (G4bool val)

G4bool	IsMaster () const

G4double	MaxSecondaryKinEnergy (const G4DynamicParticle *dynParticle)

const G4String &	GetName () const

void	SetCurrentCouple (const G4MaterialCutsCouple *)

const G4Element *	GetCurrentElement () const

Protected Attributes
G4ParticleChangeForGamma *	fParticleChangeForGamma

Protected Attributes inherited from G4VEmModel
G4ElementData *	fElementData

G4VParticleChange *	pParticleChange

G4PhysicsTable *	xSectionTable

const std::vector< G4double > *	theDensityFactor

const std::vector< G4int > *	theDensityIdx

size_t	idxTable

Additional Inherited Members
Protected Member Functions inherited from G4VEmModel
G4ParticleChangeForLoss *	GetParticleChangeForLoss ()

G4ParticleChangeForGamma *	GetParticleChangeForGamma ()

virtual G4double	MaxSecondaryEnergy (const G4ParticleDefinition *, G4double kineticEnergy)

const G4MaterialCutsCouple *	CurrentCouple () const

void	SetCurrentElement (const G4Element *)

Detailed Description

Definition at line 48 of file G4DNABornIonisationModel.hh.

Constructor & Destructor Documentation

G4DNABornIonisationModel::G4DNABornIonisationModel	(	const G4ParticleDefinition *	p = `0`,
		const G4String &	nam = `"DNABornIonisationModel"`
	)

Definition at line 43 of file G4DNABornIonisationModel.cc.

References fParticleChangeForGamma, G4cout, G4endl, and G4VEmModel::SetDeexcitationFlag().

     :G4VEmModel(nam),isInitialised(false)
 {
     verboseLevel= 0;
     // Verbosity scale:
     // 0 = nothing
     // 1 = warning for energy non-conservation
     // 2 = details of energy budget
     // 3 = calculation of cross sections, file openings, sampling of atoms
     // 4 = entering in methods
 
     if( verboseLevel>0 )
     {
         G4cout << "Born ionisation model is constructed " << G4endl;
     }
 
     //Mark this model as "applicable" for atomic deexcitation
     SetDeexcitationFlag(true);
     fAtomDeexcitation = 0;
     fParticleChangeForGamma = 0;
     fpMolWaterDensity = 0;
     
     // Selection of computation method
     
     fasterCode = false;
 }

G4DNABornIonisationModel::~G4DNABornIonisationModel ( )

virtual

Definition at line 73 of file G4DNABornIonisationModel.cc.

 {  
     // Cross section
 
     std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos;
     for (pos = tableData.begin(); pos != tableData.end(); ++pos)
     {
         G4DNACrossSectionDataSet* table = pos->second;
         delete table;
     }
 
     // Final state
 
     eVecm.clear();
     pVecm.clear();
 
 }

Member Function Documentation

G4double G4DNABornIonisationModel::CrossSectionPerVolume	(	const G4Material *	material,
		const G4ParticleDefinition *	p,
		G4double	ekin,
		G4double	emin,
		G4double	emax
	)

virtual

Reimplemented from G4VEmModel.

Definition at line 270 of file G4DNABornIonisationModel.cc.

References python.hepunit::cm, G4Electron::ElectronDefinition(), python.hepunit::eV, FatalException, G4DNACrossSectionDataSet::FindValue(), G4cout, G4endl, G4Exception(), G4Material::GetIndex(), G4ParticleDefinition::GetParticleName(), and G4Proton::ProtonDefinition().

 {
     if (verboseLevel > 3)
         G4cout << "Calling CrossSectionPerVolume() of G4DNABornIonisationModel" << G4endl;
 
     if (
             particleDefinition != G4Proton::ProtonDefinition()
             &&
             particleDefinition != G4Electron::ElectronDefinition()
             )
 
         return 0;
 
     // Calculate total cross section for model
 
     G4double lowLim = 0;
     G4double highLim = 0;
     G4double sigma=0;
 
     G4double waterDensity = (*fpMolWaterDensity)[material->GetIndex()];
 
     if(waterDensity!= 0.0)
         //  if (material == nistwater || material->GetBaseMaterial() == nistwater)
     {
         const G4String& particleName = particleDefinition->GetParticleName();
 
         std::map< G4String,G4double,std::less<G4String> >::iterator pos1;
         pos1 = lowEnergyLimit.find(particleName);
         if (pos1 != lowEnergyLimit.end())
         {
             lowLim = pos1->second;
         }
 
         std::map< G4String,G4double,std::less<G4String> >::iterator pos2;
         pos2 = highEnergyLimit.find(particleName);
         if (pos2 != highEnergyLimit.end())
         {
             highLim = pos2->second;
         }
 
         if (ekin >= lowLim && ekin < highLim)
         {
             std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos;
             pos = tableData.find(particleName);
 
             if (pos != tableData.end())
             {
                 G4DNACrossSectionDataSet* table = pos->second;
                 if (table != 0)
                 {
                     sigma = table->FindValue(ekin);
                 }
             }
             else
             {
                 G4Exception("G4DNABornIonisationModel::CrossSectionPerVolume","em0002",
                             FatalException,"Model not applicable to particle type.");
             }
         }
 
         if (verboseLevel > 2)
         {
             G4cout << "__________________________________" << G4endl;
             G4cout << "G4DNABornIonisationModel - XS INFO START" << G4endl;
             G4cout << "Kinetic energy(eV)=" << ekin/eV << " particle : " << particleName << G4endl;
             G4cout << "Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl;
             G4cout << "Cross section per water molecule (cm^-1)=" << sigma*waterDensity/(1./cm) << G4endl;
             G4cout << "G4DNABornIonisationModel - XS INFO END" << G4endl;
         }
 
     } // if (waterMaterial)
 
     return sigma*waterDensity;
 }

double G4DNABornIonisationModel::DifferentialCrossSection	(	G4ParticleDefinition *	aParticleDefinition,
		G4double	k,
		G4double	energyTransfer,
		G4int	shell
	)

Definition at line 637 of file G4DNABornIonisationModel.cc.

References G4Electron::ElectronDefinition(), G4DNAWaterIonisationStructure::IonisationEnergy(), G4Proton::ProtonDefinition(), and plottest35::t1.

 {
     G4double sigma = 0.;
 
     if (energyTransfer >= waterStructure.IonisationEnergy(ionizationLevelIndex))
     {
         G4double valueT1 = 0;
         G4double valueT2 = 0;
         G4double valueE21 = 0;
         G4double valueE22 = 0;
         G4double valueE12 = 0;
         G4double valueE11 = 0;
 
         G4double xs11 = 0;
         G4double xs12 = 0;
         G4double xs21 = 0;
         G4double xs22 = 0;
 
         if (particleDefinition == G4Electron::ElectronDefinition())
         {
             // k should be in eV and energy transfer eV also
 
             std::vector<double>::iterator t2 = std::upper_bound(eTdummyVec.begin(),eTdummyVec.end(), k);
 
             std::vector<double>::iterator t1 = t2-1;
 
             // SI : the following condition avoids situations where energyTransfer >last vector element
             if (energyTransfer <= eVecm[(*t1)].back() && energyTransfer <= eVecm[(*t2)].back() )
             {
                 std::vector<double>::iterator e12 = std::upper_bound(eVecm[(*t1)].begin(),eVecm[(*t1)].end(), energyTransfer);
                 std::vector<double>::iterator e11 = e12-1;
 
                 std::vector<double>::iterator e22 = std::upper_bound(eVecm[(*t2)].begin(),eVecm[(*t2)].end(), energyTransfer);
                 std::vector<double>::iterator e21 = e22-1;
 
                 valueT1  =*t1;
                 valueT2  =*t2;
                 valueE21 =*e21;
                 valueE22 =*e22;
                 valueE12 =*e12;
                 valueE11 =*e11;
 
                 xs11 = eDiffCrossSectionData[ionizationLevelIndex][valueT1][valueE11];
                 xs12 = eDiffCrossSectionData[ionizationLevelIndex][valueT1][valueE12];
                 xs21 = eDiffCrossSectionData[ionizationLevelIndex][valueT2][valueE21];
                 xs22 = eDiffCrossSectionData[ionizationLevelIndex][valueT2][valueE22];
         
             }
 
         }
 
         if (particleDefinition == G4Proton::ProtonDefinition())
         {
             // k should be in eV and energy transfer eV also
             std::vector<double>::iterator t2 = std::upper_bound(pTdummyVec.begin(),pTdummyVec.end(), k);
             std::vector<double>::iterator t1 = t2-1;
 
             std::vector<double>::iterator e12 = std::upper_bound(pVecm[(*t1)].begin(),pVecm[(*t1)].end(), energyTransfer);
             std::vector<double>::iterator e11 = e12-1;
 
             std::vector<double>::iterator e22 = std::upper_bound(pVecm[(*t2)].begin(),pVecm[(*t2)].end(), energyTransfer);
             std::vector<double>::iterator e21 = e22-1;
 
             valueT1  =*t1;
             valueT2  =*t2;
             valueE21 =*e21;
             valueE22 =*e22;
             valueE12 =*e12;
             valueE11 =*e11;
 
             xs11 = pDiffCrossSectionData[ionizationLevelIndex][valueT1][valueE11];
             xs12 = pDiffCrossSectionData[ionizationLevelIndex][valueT1][valueE12];
             xs21 = pDiffCrossSectionData[ionizationLevelIndex][valueT2][valueE21];
             xs22 = pDiffCrossSectionData[ionizationLevelIndex][valueT2][valueE22];
 
         }
 
         G4double xsProduct = xs11 * xs12 * xs21 * xs22;
         if (xsProduct != 0.)
         {
             sigma = QuadInterpolator(     valueE11, valueE12,
                                           valueE21, valueE22,
                                           xs11, xs12,
                                           xs21, xs22,
                                           valueT1, valueT2,
                                           k, energyTransfer);
         }
 
     }
 
     return sigma;
 }

void G4DNABornIonisationModel::Initialise	(	const G4ParticleDefinition *	particle,
		const G4DataVector &	= `*(new G4DataVector())`
	)

virtual

Implements G4VEmModel.

Definition at line 93 of file G4DNABornIonisationModel.cc.

References G4LossTableManager::AtomDeexcitation(), G4InuclParticleNames::electron, G4Electron::ElectronDefinition(), python.hepunit::eV, FatalException, fParticleChangeForGamma, G4cout, G4endl, G4Exception(), G4Material::GetMaterial(), G4DNAMolecularMaterial::GetNumMolPerVolTableFor(), G4VEmModel::GetParticleChangeForGamma(), G4ParticleDefinition::GetParticleName(), G4VEmModel::HighEnergyLimit(), G4DNAMolecularMaterial::Instance(), G4LossTableManager::Instance(), python.hepunit::keV, G4DNACrossSectionDataSet::LoadData(), G4VEmModel::LowEnergyLimit(), python.hepunit::m, python.hepunit::MeV, G4InuclParticleNames::proton, G4Proton::ProtonDefinition(), G4VEmModel::SetHighEnergyLimit(), and G4VEmModel::SetLowEnergyLimit().

 {
 
     if (verboseLevel > 3)
         G4cout << "Calling G4DNABornIonisationModel::Initialise()" << G4endl;
 
     // Energy limits
 
     G4String fileElectron("dna/sigma_ionisation_e_born");
     G4String fileProton("dna/sigma_ionisation_p_born");
 
     G4ParticleDefinition* electronDef = G4Electron::ElectronDefinition();
     G4ParticleDefinition* protonDef = G4Proton::ProtonDefinition();
 
     G4String electron;
     G4String proton;
 
     G4double scaleFactor = (1.e-22 / 3.343) * m*m;
 
     char *path = getenv("G4LEDATA");
 
     // *** ELECTRON
 
     electron = electronDef->GetParticleName();
 
     tableFile[electron] = fileElectron;
 
     lowEnergyLimit[electron] = 11. * eV;
     highEnergyLimit[electron] = 1. * MeV;
 
     // Cross section
     
     G4DNACrossSectionDataSet* tableE = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor );
     tableE->LoadData(fileElectron);
 
     tableData[electron] = tableE;
     
     // Final state
     
     std::ostringstream eFullFileName;
    
     if (fasterCode)  eFullFileName << path << "/dna/sigmadiff_cumulated_ionisation_e_born.dat"; 
     if (!fasterCode) eFullFileName << path << "/dna/sigmadiff_ionisation_e_born.dat";
     
     std::ifstream eDiffCrossSection(eFullFileName.str().c_str());
 
     if (!eDiffCrossSection)
     {
         if (fasterCode)  G4Exception("G4DNABornIonisationModel::Initialise","em0003",
                          FatalException,"Missing data file:/dna/sigmadiff_cumulated_ionisation_e_born.dat");
              
         if (!fasterCode) G4Exception("G4DNABornIonisationModel::Initialise","em0003",
                          FatalException,"Missing data file:/dna/sigmadiff_ionisation_e_born.dat");
     }
 
     eTdummyVec.push_back(0.);
     while(!eDiffCrossSection.eof())
     {
         double tDummy;
         double eDummy;
         eDiffCrossSection>>tDummy>>eDummy;
         if (tDummy != eTdummyVec.back()) eTdummyVec.push_back(tDummy);
         for (int j=0; j<5; j++)
         {
             eDiffCrossSection>>eDiffCrossSectionData[j][tDummy][eDummy];
        
         if (fasterCode) 
         {
             eNrjTransfData[j][tDummy][eDiffCrossSectionData[j][tDummy][eDummy]]=eDummy;
             eProbaShellMap[j][tDummy].push_back(eDiffCrossSectionData[j][tDummy][eDummy]);
         }
 
             // SI - only if eof is not reached
             if (!eDiffCrossSection.eof() && !fasterCode) eDiffCrossSectionData[j][tDummy][eDummy]*=scaleFactor;
             
         if (!fasterCode) eVecm[tDummy].push_back(eDummy);
 
         }
     }
 
     // *** PROTON
 
     proton = protonDef->GetParticleName();
 
     tableFile[proton] = fileProton;
 
     lowEnergyLimit[proton] = 500. * keV;
     highEnergyLimit[proton] = 100. * MeV;
 
     // Cross section
     
     G4DNACrossSectionDataSet* tableP = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor );
     tableP->LoadData(fileProton);
 
     tableData[proton] = tableP;
     
     // Final state
 
     std::ostringstream pFullFileName;
 
     if (fasterCode)  pFullFileName << path << "/dna/sigmadiff_cumulated_ionisation_p_born.dat"; 
 
     if (!fasterCode) pFullFileName << path << "/dna/sigmadiff_ionisation_p_born.dat";
     
     std::ifstream pDiffCrossSection(pFullFileName.str().c_str());
     
     if (!pDiffCrossSection)
     {
         if (fasterCode)  G4Exception("G4DNABornIonisationModel::Initialise","em0003",
                          FatalException,"Missing data file:/dna/sigmadiff_cumulated_ionisation_p_born.dat");
              
         if (!fasterCode) G4Exception("G4DNABornIonisationModel::Initialise","em0003",
                          FatalException,"Missing data file:/dna/sigmadiff_ionisation_p_born.dat");
     }
 
     pTdummyVec.push_back(0.);
     while(!pDiffCrossSection.eof())
     {
         double tDummy;
         double eDummy;
         pDiffCrossSection>>tDummy>>eDummy;
         if (tDummy != pTdummyVec.back()) pTdummyVec.push_back(tDummy);
         for (int j=0; j<5; j++)
         {
             pDiffCrossSection>>pDiffCrossSectionData[j][tDummy][eDummy];
 
         if (fasterCode) 
         {
             pNrjTransfData[j][tDummy][pDiffCrossSectionData[j][tDummy][eDummy]]=eDummy;
         pProbaShellMap[j][tDummy].push_back(pDiffCrossSectionData[j][tDummy][eDummy]);
         }
 
             // SI - only if eof is not reached !
             if (!pDiffCrossSection.eof() && !fasterCode) pDiffCrossSectionData[j][tDummy][eDummy]*=scaleFactor;
 
             if (!fasterCode) pVecm[tDummy].push_back(eDummy);
         }
     }
 
     //
 
     if (particle==electronDef)
     {
         SetLowEnergyLimit(lowEnergyLimit[electron]);
         SetHighEnergyLimit(highEnergyLimit[electron]);
     }
 
     if (particle==protonDef)
     {
         SetLowEnergyLimit(lowEnergyLimit[proton]);
         SetHighEnergyLimit(highEnergyLimit[proton]);
     }
 
     if( verboseLevel>0 )
     {
         G4cout << "Born ionisation model is initialized " << G4endl
                << "Energy range: "
                << LowEnergyLimit() / eV << " eV - "
                << HighEnergyLimit() / keV << " keV for "
                << particle->GetParticleName()
                << G4endl;
     }
 
     // Initialize water density pointer
     fpMolWaterDensity = G4DNAMolecularMaterial::Instance()->GetNumMolPerVolTableFor(G4Material::GetMaterial("G4_WATER"));
 
     //
     fAtomDeexcitation  = G4LossTableManager::Instance()->AtomDeexcitation();
 
     if (isInitialised) { return; }
     fParticleChangeForGamma = GetParticleChangeForGamma();
     isInitialised = true;
 }

void G4DNABornIonisationModel::SampleSecondaries	(	std::vector< G4DynamicParticle * > *	fvect,
		const G4MaterialCutsCouple *	,
		const G4DynamicParticle *	particle,
		G4double	tmin,
		G4double	maxEnergy
	)

virtual

Implements G4VEmModel.

Definition at line 351 of file G4DNABornIonisationModel.cc.

References G4InuclSpecialFunctions::bindingEnergy(), G4DNAChemistryManager::CreateWaterMolecule(), eIonizedMolecule, G4Electron::Electron(), python.hepunit::electron_mass_c2, G4Electron::ElectronDefinition(), python.hepunit::eV, fKShell, fParticleChangeForGamma, G4cout, G4endl, G4VAtomDeexcitation::GenerateParticles(), G4VAtomDeexcitation::GetAtomicShell(), G4ParticleChangeForGamma::GetCurrentTrack(), G4DynamicParticle::GetDefinition(), G4DynamicParticle::GetKineticEnergy(), G4DynamicParticle::GetMomentumDirection(), G4ParticleDefinition::GetParticleName(), G4ParticleDefinition::GetPDGMass(), G4DNAChemistryManager::Instance(), G4DNAWaterIonisationStructure::IonisationEnergy(), G4VParticleChange::ProposeLocalEnergyDeposit(), G4ParticleChangeForGamma::ProposeMomentumDirection(), CLHEP::Hep3Vector::rotateUz(), CLHEP::Hep3Vector::set(), G4ParticleChangeForGamma::SetProposedKineticEnergy(), CLHEP::Hep3Vector::unit(), CLHEP::Hep3Vector::x(), CLHEP::Hep3Vector::y(), and CLHEP::Hep3Vector::z().

 {
 
     if (verboseLevel > 3)
         G4cout << "Calling SampleSecondaries() of G4DNABornIonisationModel" << G4endl;
 
     G4double lowLim = 0;
     G4double highLim = 0;
 
     G4double k = particle->GetKineticEnergy();
 
     const G4String& particleName = particle->GetDefinition()->GetParticleName();
 
     std::map< G4String,G4double,std::less<G4String> >::iterator pos1;
     pos1 = lowEnergyLimit.find(particleName);
 
     if (pos1 != lowEnergyLimit.end())
     {
         lowLim = pos1->second;
     }
 
     std::map< G4String,G4double,std::less<G4String> >::iterator pos2;
     pos2 = highEnergyLimit.find(particleName);
 
     if (pos2 != highEnergyLimit.end())
     {
         highLim = pos2->second;
     }
 
     if (k >= lowLim && k < highLim)
     {
         G4ParticleMomentum primaryDirection = particle->GetMomentumDirection();
         G4double particleMass = particle->GetDefinition()->GetPDGMass();
         G4double totalEnergy = k + particleMass;
         G4double pSquare = k * (totalEnergy + particleMass);
         G4double totalMomentum = std::sqrt(pSquare);
 
         G4int ionizationShell = -1;
     
     if (!fasterCode) ionizationShell = RandomSelect(k,particleName);
     
     // SI: The following protection is necessary to avoid infinite loops :
     //  sigmadiff_ionisation_e_born.dat has non zero partial xs at 18 eV for shell 3 (ionizationShell ==2)
     //  sigmadiff_cumulated_ionisation_e_born.dat has zero cumulated partial xs at 18 eV for shell 3 (ionizationShell ==2)
     //  this is due to the fact that the max allowed transfered energy is (18+10.79)/2=17.025 eV and only transfered energies
     //  strictly above this value have non zero partial xs in sigmadiff_ionisation_e_born.dat (starting at trans = 17.12 eV)
     
     if (fasterCode)     
     do
     { 
       ionizationShell = RandomSelect(k,particleName); 
         } while (k<19*eV && ionizationShell==2 && particle->GetDefinition()==G4Electron::ElectronDefinition());
     
     
         // AM: sample deexcitation
         // here we assume that H_{2}O electronic levels are the same of Oxigen.
         // this can be considered true with a rough 10% error in energy on K-shell,
 
         G4int secNumberInit = 0;  // need to know at a certain point the enrgy of secondaries
         G4int secNumberFinal = 0; // So I'll make the diference and then sum the energies
 
         G4double bindingEnergy = 0;
         bindingEnergy = waterStructure.IonisationEnergy(ionizationShell);
 
         if(fAtomDeexcitation) {
             G4int Z = 8;
             G4AtomicShellEnumerator as = fKShell;
 
             if (ionizationShell <5 && ionizationShell >1)
             {
                 as = G4AtomicShellEnumerator(4-ionizationShell);
             }
             else if (ionizationShell <2)
             {
                 as = G4AtomicShellEnumerator(3);
             }
 
             //  FOR DEBUG ONLY
             //  if (ionizationShell == 4) {
             //
             //    G4cout << "Z: " << Z << " as: " << as
             //               << " ionizationShell: " << ionizationShell << " bindingEnergy: "<< bindingEnergy/eV << G4endl;
             //        G4cout << "Press <Enter> key to continue..." << G4endl;
             //    G4cin.ignore();
             //  }
 
             const G4AtomicShell* shell = fAtomDeexcitation->GetAtomicShell(Z, as);
             secNumberInit = fvect->size();
             fAtomDeexcitation->GenerateParticles(fvect, shell, Z, 0, 0);
             secNumberFinal = fvect->size();
         }
 
         G4double secondaryKinetic=-1000*eV;
 
         if (!fasterCode) secondaryKinetic = RandomizeEjectedElectronEnergy(particle->GetDefinition(),k,ionizationShell);
        
         if (fasterCode) 
     do
     {
           secondaryKinetic = RandomizeEjectedElectronEnergyFromCumulatedDcs(particle->GetDefinition(),k,ionizationShell);
       
         }    
     while (secondaryKinetic<0) ;
         
     G4double cosTheta = 0.;
         G4double phi = 0.;
         RandomizeEjectedElectronDirection(particle->GetDefinition(), k,secondaryKinetic, cosTheta, phi);
 
         G4double sinTheta = std::sqrt(1.-cosTheta*cosTheta);
         G4double dirX = sinTheta*std::cos(phi);
         G4double dirY = sinTheta*std::sin(phi);
         G4double dirZ = cosTheta;
         G4ThreeVector deltaDirection(dirX,dirY,dirZ);
         deltaDirection.rotateUz(primaryDirection);
 
         if (particle->GetDefinition() == G4Electron::ElectronDefinition())
         {
             G4double deltaTotalMomentum = std::sqrt(secondaryKinetic*(secondaryKinetic + 2.*electron_mass_c2 ));
 
             G4double finalPx = totalMomentum*primaryDirection.x() - deltaTotalMomentum*deltaDirection.x();
             G4double finalPy = totalMomentum*primaryDirection.y() - deltaTotalMomentum*deltaDirection.y();
             G4double finalPz = totalMomentum*primaryDirection.z() - deltaTotalMomentum*deltaDirection.z();
             G4double finalMomentum = std::sqrt(finalPx*finalPx + finalPy*finalPy + finalPz*finalPz);
             finalPx /= finalMomentum;
             finalPy /= finalMomentum;
             finalPz /= finalMomentum;
 
             G4ThreeVector direction;
             direction.set(finalPx,finalPy,finalPz);
 
             fParticleChangeForGamma->ProposeMomentumDirection(direction.unit()) ;
         }
 
         else fParticleChangeForGamma->ProposeMomentumDirection(primaryDirection) ;
 
         // note thta secondaryKinetic is the nergy of the delta ray, not of all secondaries.
         G4double scatteredEnergy = k-bindingEnergy-secondaryKinetic;
         G4double deexSecEnergy = 0;
         for (G4int j=secNumberInit; j < secNumberFinal; j++) {
 
             deexSecEnergy = deexSecEnergy + (*fvect)[j]->GetKineticEnergy();
 
         }
 
         fParticleChangeForGamma->SetProposedKineticEnergy(scatteredEnergy);
 
     fParticleChangeForGamma->ProposeLocalEnergyDeposit(k-scatteredEnergy-secondaryKinetic-deexSecEnergy);
 
     G4DynamicParticle* dp = new G4DynamicParticle (G4Electron::Electron(),deltaDirection,secondaryKinetic) ;
     fvect->push_back(dp);
 
         const G4Track * theIncomingTrack = fParticleChangeForGamma->GetCurrentTrack();
         G4DNAChemistryManager::Instance()->CreateWaterMolecule(eIonizedMolecule,
                                                                ionizationShell,
                                                                theIncomingTrack);
     }
 
 }

void G4DNABornIonisationModel::SelectFasterComputation ( G4bool input )

inline

Definition at line 162 of file G4DNABornIonisationModel.hh.

 { 
     fasterCode = input; 
 }        

Field Documentation

G4ParticleChangeForGamma* G4DNABornIonisationModel::fParticleChangeForGamma

protected

Definition at line 78 of file G4DNABornIonisationModel.hh.

Referenced by G4DNABornIonisationModel(), Initialise(), and SampleSecondaries().

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

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation