#include <G4MicroElecElasticModel.hh>

Inheritance diagram for G4MicroElecElasticModel:

Public Member Functions
	G4MicroElecElasticModel (const G4ParticleDefinition *p=0, const G4String &nam="MicroElecElasticModel")

virtual	~G4MicroElecElasticModel ()

virtual void	Initialise (const G4ParticleDefinition *, const 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)

void	SetKillBelowThreshold (G4double threshold)

G4double	GetKillBelowThreshold ()

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 51 of file G4MicroElecElasticModel.hh.

Constructor & Destructor Documentation

G4MicroElecElasticModel::G4MicroElecElasticModel	(	const G4ParticleDefinition *	p = `0`,
		const G4String &	nam = `"MicroElecElasticModel"`
	)

Definition at line 48 of file G4MicroElecElasticModel.cc.

References python.hepunit::eV, G4NistManager::FindOrBuildMaterial(), fParticleChangeForGamma, G4cout, G4endl, G4NistManager::Instance(), python.hepunit::keV, python.hepunit::MeV, G4VEmModel::SetHighEnergyLimit(), and G4VEmModel::SetLowEnergyLimit().

 :G4VEmModel(nam),isInitialised(false)
 {
   nistSi = G4NistManager::Instance()->FindOrBuildMaterial("G4_Si");
 
   killBelowEnergy = 16.7 * eV; // Minimum e- energy for energy loss by excitation
   lowEnergyLimit = 0 * eV; 
   lowEnergyLimitOfModel = 5 * eV; // The model lower energy is 5 eV
   highEnergyLimit = 100. * MeV;
   SetLowEnergyLimit(lowEnergyLimit);
   SetHighEnergyLimit(highEnergyLimit);
 
   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 << "MicroElec Elastic model is constructed " << G4endl
            << "Energy range: "
            << lowEnergyLimit / eV << " eV - "
            << highEnergyLimit / keV << " keV"
            << G4endl;
   }
   fParticleChangeForGamma = 0;
 }

G4MicroElecElasticModel::~G4MicroElecElasticModel ( )

virtual

Definition at line 82 of file G4MicroElecElasticModel.cc.

 {  
   // For total cross section
   
   std::map< G4String,G4MicroElecCrossSectionDataSet*,std::less<G4String> >::iterator pos;
   for (pos = tableData.begin(); pos != tableData.end(); ++pos)
   {
     G4MicroElecCrossSectionDataSet* table = pos->second;
     delete table;
   }
 
    // For final state
    
    eVecm.clear();
 
 }

Member Function Documentation

G4double G4MicroElecElasticModel::CrossSectionPerVolume	(	const G4Material *	material,
		const G4ParticleDefinition *	p,
		G4double	ekin,
		G4double	emin,
		G4double	emax
	)

virtual

Reimplemented from G4VEmModel.

Definition at line 207 of file G4MicroElecElasticModel.cc.

References python.hepunit::cm, density, python.hepunit::eV, FatalException, G4MicroElecCrossSectionDataSet::FindValue(), G4cout, G4endl, G4Exception(), G4Material::GetBaseMaterial(), G4ParticleDefinition::GetParticleName(), and G4Material::GetTotNbOfAtomsPerVolume().

 {
   if (verboseLevel > 3)
     G4cout << "Calling CrossSectionPerVolume() of G4MicroElecElasticModel" << G4endl;
 
  // Calculate total cross section for model
 
  G4double sigma=0;
  
  G4double density = material->GetTotNbOfAtomsPerVolume();
 
  if (material == nistSi || material->GetBaseMaterial() == nistSi)
  {
   const G4String& particleName = p->GetParticleName();
 
   if (ekin < highEnergyLimit)
   {
       //SI : XS must not be zero otherwise sampling of secondaries method ignored
       if (ekin < lowEnergyLimitOfModel) ekin = lowEnergyLimitOfModel;
       //      
       
     std::map< G4String,G4MicroElecCrossSectionDataSet*,std::less<G4String> >::iterator pos;
     pos = tableData.find(particleName);
     
     if (pos != tableData.end())
     {
       G4MicroElecCrossSectionDataSet* table = pos->second;
       if (table != 0)
       {
         sigma = table->FindValue(ekin);
       }
     }
     else
     {
         G4Exception("G4MicroElecElasticModel::ComputeCrossSectionPerVolume","em0002",FatalException,"Model not applicable to particle type.");
     }
   }
 
   if (verboseLevel > 3)
   {
     G4cout << "---> Kinetic energy(eV)=" << ekin/eV << G4endl;
     G4cout << " - Cross section per Si atom (cm^2)=" << sigma/cm/cm << G4endl;
     G4cout << " - Cross section per Si atom (cm^-1)=" << sigma*density/(1./cm) << G4endl;
   } 
 
  } 
          
  return sigma*density;         
 }

G4double G4MicroElecElasticModel::GetKillBelowThreshold ( )

inline

Definition at line 76 of file G4MicroElecElasticModel.hh.

76 { return killBelowEnergy; }

void G4MicroElecElasticModel::Initialise	(	const G4ParticleDefinition *	,
		const G4DataVector &
	)

virtual

Implements G4VEmModel.

Definition at line 101 of file G4MicroElecElasticModel.cc.

References python.hepunit::cm, G4InuclParticleNames::electron, G4Electron::ElectronDefinition(), python.hepunit::eV, FatalException, fParticleChangeForGamma, G4cout, G4endl, G4Exception(), G4VEmModel::GetParticleChangeForGamma(), G4ParticleDefinition::GetParticleName(), G4VEmModel::HighEnergyLimit(), python.hepunit::keV, G4MicroElecCrossSectionDataSet::LoadData(), G4VEmModel::LowEnergyLimit(), python.hepunit::MeV, G4VEmModel::SetHighEnergyLimit(), and G4VEmModel::SetLowEnergyLimit().

 {
 
   if (verboseLevel > 3)
     G4cout << "Calling G4MicroElecElasticModel::Initialise()" << G4endl;
 
   // Energy limits
   
   if (LowEnergyLimit() < lowEnergyLimit)
   {
     G4cout << "G4MicroElecElasticModel: low energy limit increased from " << 
     LowEnergyLimit()/eV << " eV to " << lowEnergyLimit/eV << " eV" << G4endl;
     SetLowEnergyLimit(lowEnergyLimit);
     }
 
   if (HighEnergyLimit() > highEnergyLimit)
   {
     G4cout << "G4MicroElecElasticModel: high energy limit decreased from " << 
         HighEnergyLimit()/MeV << " MeV to " << highEnergyLimit/MeV << " MeV" << G4endl;
     SetHighEnergyLimit(highEnergyLimit);
   }
 
   // Reading of data files 
   
   G4double scaleFactor = 1e-18 * cm * cm;
 
   G4String fileElectron("microelec/sigma_elastic_e_Si");
 
   G4ParticleDefinition* electronDef = G4Electron::ElectronDefinition();
   G4String electron;
 
     // For total cross section
     
     electron = electronDef->GetParticleName();
 
     tableFile[electron] = fileElectron;
 
     G4MicroElecCrossSectionDataSet* tableE = new G4MicroElecCrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor );
     tableE->LoadData(fileElectron);
     tableData[electron] = tableE;
     
     // For final state
     
     char *path = getenv("G4LEDATA");
  
     if (!path)
     {
       G4Exception("G4MicroElecElasticModel::Initialise","em0006",FatalException,"G4LEDATA environment variable not set.");
       return;
     }
 
     std::ostringstream eFullFileName;
     eFullFileName << path << "/microelec/sigmadiff_elastic_e_Si.dat";
     std::ifstream eDiffCrossSection(eFullFileName.str().c_str());
      
     if (!eDiffCrossSection) 
     G4Exception("G4MicroElecElasticModel::Initialise","em0003",FatalException,"Missing data file: /microelec/sigmadiff_elastic_e_Si.dat");
       
     eTdummyVec.push_back(0.);
 
     while(!eDiffCrossSection.eof())
     {
     double tDummy;
     double eDummy;
     eDiffCrossSection>>tDummy>>eDummy;
 
     // SI : mandatory eVecm initialization
         if (tDummy != eTdummyVec.back()) 
         { 
           eTdummyVec.push_back(tDummy); 
           eVecm[tDummy].push_back(0.);
         }
       
         eDiffCrossSection>>eDiffCrossSectionData[tDummy][eDummy];
 
     // SI : only if not end of file reached !
         if (!eDiffCrossSection.eof()) eDiffCrossSectionData[tDummy][eDummy]*=scaleFactor;
       
         if (eDummy != eVecm[tDummy].back()) eVecm[tDummy].push_back(eDummy);
           
     }
 
     // End final state
   
   if (verboseLevel > 2) 
     G4cout << "Loaded cross section files for MicroElec Elastic model" << G4endl;
 
   if( verboseLevel>0 ) 
   { 
     G4cout << "MicroElec Elastic model is initialized " << G4endl
            << "Energy range: "
            << LowEnergyLimit() / eV << " eV - "
            << HighEnergyLimit() / keV << " keV"
            << G4endl;
   }
 
   if (isInitialised) { return; }
   fParticleChangeForGamma = GetParticleChangeForGamma();
   isInitialised = true;
 
   // InitialiseElementSelectors(particle,cuts);
 }

void G4MicroElecElasticModel::SampleSecondaries	(	std::vector< G4DynamicParticle * > *	,
		const G4MaterialCutsCouple *	,
		const G4DynamicParticle *	aDynamicElectron,
		G4double	tmin,
		G4double	maxEnergy
	)

virtual

Implements G4VEmModel.

Definition at line 263 of file G4MicroElecElasticModel.cc.

References CLHEP::Hep3Vector::cross(), fParticleChangeForGamma, fStopAndKill, G4cout, G4endl, G4UniformRand, G4DynamicParticle::GetKineticEnergy(), G4DynamicParticle::GetMomentumDirection(), CLHEP::Hep3Vector::orthogonal(), python.hepunit::pi, G4VParticleChange::ProposeLocalEnergyDeposit(), G4ParticleChangeForGamma::ProposeMomentumDirection(), G4VParticleChange::ProposeTrackStatus(), G4ParticleChangeForGamma::SetProposedKineticEnergy(), and CLHEP::Hep3Vector::unit().

 {
 
   if (verboseLevel > 3)
     G4cout << "Calling SampleSecondaries() of G4MicroElecElasticModel" << G4endl;
 
   G4double electronEnergy0 = aDynamicElectron->GetKineticEnergy();
   
   if (electronEnergy0 < killBelowEnergy)
   {
     fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill);
     fParticleChangeForGamma->ProposeLocalEnergyDeposit(electronEnergy0);
     return ;
   }
 
   if (electronEnergy0>= killBelowEnergy && electronEnergy0 < highEnergyLimit)
   {  
     G4double cosTheta = RandomizeCosTheta(electronEnergy0);
   
     G4double phi = 2. * pi * G4UniformRand();
 
     G4ThreeVector zVers = aDynamicElectron->GetMomentumDirection();
     G4ThreeVector xVers = zVers.orthogonal();
     G4ThreeVector yVers = zVers.cross(xVers);
 
     G4double xDir = std::sqrt(1. - cosTheta*cosTheta);
     G4double yDir = xDir;
     xDir *= std::cos(phi);
     yDir *= std::sin(phi);
 
     G4ThreeVector zPrimeVers((xDir*xVers + yDir*yVers + cosTheta*zVers));
 
     fParticleChangeForGamma->ProposeMomentumDirection(zPrimeVers.unit()) ;
 
     fParticleChangeForGamma->SetProposedKineticEnergy(electronEnergy0);
   }
 
 }

void G4MicroElecElasticModel::SetKillBelowThreshold ( G4double threshold )

inline

Definition at line 138 of file G4MicroElecElasticModel.hh.

References G4Exception(), and JustWarning.

 { 
     killBelowEnergy = threshold; 
     
     if (threshold < 5*CLHEP::eV)
     {
        G4Exception ("*** WARNING : the G4MicroElecElasticModel class is not validated below 5 eV !","",JustWarning,"") ;
        threshold = 0.025*CLHEP::eV;
     }
              
 }        

Field Documentation

G4ParticleChangeForGamma* G4MicroElecElasticModel::fParticleChangeForGamma

protected

Definition at line 80 of file G4MicroElecElasticModel.hh.

Referenced by G4MicroElecElasticModel(), 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