G4PolarizedGammaConversionModel Class Reference

#include <G4PolarizedGammaConversionModel.hh>

Inheritance diagram for G4PolarizedGammaConversionModel:

Public Member Functions
	G4PolarizedGammaConversionModel (const G4ParticleDefinition *p=nullptr, const G4String &nam="polConv")
virtual	~G4PolarizedGammaConversionModel () override
virtual void	Initialise (const G4ParticleDefinition *, const G4DataVector &) override
virtual void	SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy) override
const G4Element *	SelectedAtom ()
G4PolarizedGammaConversionModel &	operator= (const G4PolarizedGammaConversionModel &right)=delete
	G4PolarizedGammaConversionModel (const G4PolarizedGammaConversionModel &)=delete
Public Member Functions inherited from G4BetheHeitlerModel
	G4BetheHeitlerModel (const G4ParticleDefinition *p=nullptr, const G4String &nam="BetheHeitler")
	~G4BetheHeitlerModel () override
void	InitialiseLocal (const G4ParticleDefinition *, G4VEmModel *masterModel) override
G4double	ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A=0., G4double cut=0., G4double emax=DBL_MAX) override
G4BetheHeitlerModel &	operator= (const G4BetheHeitlerModel &right)=delete
	G4BetheHeitlerModel (const G4BetheHeitlerModel &)=delete
Public Member Functions inherited from G4VEmModel
	G4VEmModel (const G4String &nam)
virtual	~G4VEmModel ()
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	CrossSectionPerVolume (const G4Material *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
virtual G4double	GetPartialCrossSection (const G4Material *, G4int level, const G4ParticleDefinition *, G4double kineticEnergy)
virtual G4double	ComputeCrossSectionPerShell (const G4ParticleDefinition *, G4int Z, G4int shellIdx, G4double kinEnergy, 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 *, const G4double &length, G4double &eloss)
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 *)
virtual void	FillNumberOfSecondaries (G4int &numberOfTriplets, G4int &numberOfRecoil)
virtual void	ModelDescription (std::ostream &outFile) const
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)
const G4Element *	SelectRandomAtom (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
const G4Element *	SelectTargetAtom (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double logKineticEnergy, 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)
const G4Element *	GetCurrentElement (const G4Material *mat=nullptr) const
G4int	SelectRandomAtomNumber (const G4Material *) const
const G4Isotope *	GetCurrentIsotope (const G4Element *elm=nullptr) const
G4int	SelectIsotopeNumber (const G4Element *) const
void	SetParticleChange (G4VParticleChange *, G4VEmFluctuationModel *f=nullptr)
void	SetCrossSectionTable (G4PhysicsTable *, G4bool isLocal)
G4ElementData *	GetElementData ()
G4PhysicsTable *	GetCrossSectionTable ()
G4VEmFluctuationModel *	GetModelOfFluctuations ()
G4VEmAngularDistribution *	GetAngularDistribution ()
G4VEmModel *	GetTripletModel ()
void	SetTripletModel (G4VEmModel *)
void	SetAngularDistribution (G4VEmAngularDistribution *)
G4double	HighEnergyLimit () const
G4double	LowEnergyLimit () const
G4double	HighEnergyActivationLimit () const
G4double	LowEnergyActivationLimit () const
G4double	PolarAngleLimit () const
G4double	SecondaryThreshold () 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) const
void	SetPolarAngleLimit (G4double)
void	SetSecondaryThreshold (G4double)
void	SetDeexcitationFlag (G4bool val)
void	SetForceBuildTable (G4bool val)
void	SetFluctuationFlag (G4bool val)
void	SetMasterThread (G4bool val)
G4bool	IsMaster () const
void	SetUseBaseMaterials (G4bool val)
G4bool	UseBaseMaterials () const
G4double	MaxSecondaryKinEnergy (const G4DynamicParticle *dynParticle)
const G4String &	GetName () const
void	SetCurrentCouple (const G4MaterialCutsCouple *)
G4bool	IsLocked () const
void	SetLocked (G4bool)
void	SetLPMFlag (G4bool)
G4VEmModel &	operator= (const G4VEmModel &right)=delete
	G4VEmModel (const G4VEmModel &)=delete

Additional Inherited Members
Protected Member Functions inherited from G4BetheHeitlerModel
G4double	ScreenFunction1 (const G4double delta)
G4double	ScreenFunction2 (const G4double delta)
void	ScreenFunction12 (const G4double delta, G4double &f1, G4double &f2)
void	InitialiseElementData ()
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 *)
Protected Attributes inherited from G4BetheHeitlerModel
G4Pow *	fG4Calc
const G4ParticleDefinition *	fTheGamma
const G4ParticleDefinition *	fTheElectron
const G4ParticleDefinition *	fThePositron
G4ParticleChangeForGamma *	fParticleChange
G4bool	isFirstInstance {false}
Protected Attributes inherited from G4VEmModel
G4ElementData *	fElementData = nullptr
G4VParticleChange *	pParticleChange = nullptr
G4PhysicsTable *	xSectionTable = nullptr
const G4Material *	pBaseMaterial = nullptr
const std::vector< G4double > *	theDensityFactor = nullptr
const std::vector< G4int > *	theDensityIdx = nullptr
G4double	inveplus
G4double	pFactor = 1.0
std::size_t	currentCoupleIndex = 0
std::size_t	basedCoupleIndex = 0
G4bool	lossFlucFlag = true
Static Protected Attributes inherited from G4BetheHeitlerModel
static const G4int	gMaxZet = 120
static std::vector< ElementData * >	gElementData

Detailed Description

Definition at line 51 of file G4PolarizedGammaConversionModel.hh.

Constructor & Destructor Documentation

G4PolarizedGammaConversionModel() [1/2]

G4PolarizedGammaConversionModel::G4PolarizedGammaConversionModel ( const G4ParticleDefinition * p = nullptr, const G4String & nam = "polConv" )

explicit

Definition at line 48 of file G4PolarizedGammaConversionModel.cc.

  : G4BetheHeitlerModel(pd, nam)
  , fCrossSectionCalculator(nullptr)
{}

~G4PolarizedGammaConversionModel()

G4PolarizedGammaConversionModel::~G4PolarizedGammaConversionModel ( )

overridevirtual

Definition at line 55 of file G4PolarizedGammaConversionModel.cc.

{
  if(fCrossSectionCalculator)
    delete fCrossSectionCalculator;
}

G4PolarizedGammaConversionModel() [2/2]

G4PolarizedGammaConversionModel::G4PolarizedGammaConversionModel ( const G4PolarizedGammaConversionModel & )

delete

Member Function Documentation

Initialise()

void G4PolarizedGammaConversionModel::Initialise ( const G4ParticleDefinition * pd, const G4DataVector & dv )

overridevirtual

Reimplemented from G4BetheHeitlerModel.

Definition at line 62 of file G4PolarizedGammaConversionModel.cc.

{
  G4BetheHeitlerModel::Initialise(pd, dv);
  if(!fCrossSectionCalculator)
    fCrossSectionCalculator = new G4PolarizedGammaConversionXS();
}

operator=()

G4PolarizedGammaConversionModel & G4PolarizedGammaConversionModel::operator= ( const G4PolarizedGammaConversionModel & right )

delete

SampleSecondaries()

void G4PolarizedGammaConversionModel::SampleSecondaries ( std::vector< G4DynamicParticle * > * vdp, const G4MaterialCutsCouple * couple, const G4DynamicParticle * dp, G4double tmin, G4double maxEnergy )

overridevirtual

Reimplemented from G4BetheHeitlerModel.

Definition at line 71 of file G4PolarizedGammaConversionModel.cc.

{
  G4BetheHeitlerModel::SampleSecondaries(vdp, couple, dp, tmin, maxEnergy);
 
  if(vdp && vdp->size() > 0)
  {
    G4double gamEnergy0 = dp->GetKineticEnergy();
    G4double lepEnergy1 = (*vdp)[0]->GetKineticEnergy();
    G4double sintheta =
      dp->GetMomentumDirection().cross((*vdp)[0]->GetMomentumDirection()).mag();
    if(sintheta > 1.)
      sintheta = 1.;
 
    G4StokesVector beamPol = G4StokesVector(dp->GetPolarization());
    beamPol.SetPhoton();
 
    // determine interaction plane
    G4ThreeVector nInteractionFrame = G4PolarizationHelper::GetFrame(
      dp->GetMomentumDirection(), (*vdp)[0]->GetMomentumDirection());
 
    // transform polarization into interaction frame
    beamPol.InvRotateAz(nInteractionFrame, dp->GetMomentumDirection());
 
    // calculate polarization transfer
    fCrossSectionCalculator->SetMaterial(
      GetCurrentElement()->GetN(),  // number of nucleons
      GetCurrentElement()->GetZ(), GetCurrentElement()->GetfCoulomb());
    fCrossSectionCalculator->Initialize(gamEnergy0, lepEnergy1, sintheta,
                                        beamPol, G4StokesVector::ZERO);
 
    // determine final state polarization
    G4StokesVector lep1Pol = fCrossSectionCalculator->GetPol2();
    lep1Pol.RotateAz(nInteractionFrame, (*vdp)[0]->GetMomentumDirection());
    (*vdp)[0]->SetPolarization(lep1Pol.p1(), lep1Pol.p2(), lep1Pol.p3());
 
    size_t num = vdp->size();
    if(num != 2)
    {
      G4ExceptionDescription ed;
      ed << " WARNING " << num
         << " secondaries in polarized pairproduction not supported!\n";
      G4Exception("G4PolarizedGammaConversionModel::SampleSecondaries",
                  "pol018", JustWarning, ed);
    }
    for(size_t i = 1; i < num; ++i)
    {
      G4StokesVector lep2Pol = fCrossSectionCalculator->GetPol3();
      lep2Pol.RotateAz(nInteractionFrame, (*vdp)[i]->GetMomentumDirection());
      (*vdp)[i]->SetPolarization(lep2Pol.p1(), lep2Pol.p2(), lep2Pol.p3());
    }
  }
}

SelectedAtom()

const G4Element * G4PolarizedGammaConversionModel::SelectedAtom ( )

inline

Definition at line 79 of file G4PolarizedGammaConversionModel.hh.

{
  return GetCurrentElement();
}

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

• G4PolarizedGammaConversionModel.hh
• G4PolarizedGammaConversionModel.cc