#include <G4eSingleCoulombScatteringModel.hh>

Inheritance diagram for G4eSingleCoulombScatteringModel:

Public Member Functions
	G4eSingleCoulombScatteringModel (const G4String &nam="eSingleCoulombScattering")

virtual	~G4eSingleCoulombScatteringModel ()

virtual void	Initialise (const G4ParticleDefinition *, const G4DataVector &)

virtual G4double	ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A, G4double cut, G4double emax)

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

void	SetRecoilThreshold (G4double eth)

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

virtual	~G4VEmModel ()

virtual void	Initialise (const G4ParticleDefinition *, const G4DataVector &)=0

virtual void	SampleSecondaries (std::vector< G4DynamicParticle * > , const G4MaterialCutsCouple , const G4DynamicParticle *, G4double tmin=0.0, G4double tmax=DBL_MAX)=0

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	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 )

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

virtual void	DefineForRegion (const G4Region *)

void	InitialiseElementSelectors (const G4ParticleDefinition *, const G4DataVector &)

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)

void	SetParticleChange (G4VParticleChange , G4VEmFluctuationModel f=0)

void	SetCrossSectionTable (G4PhysicsTable *)

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

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	ForceBuildTable (G4bool val)

G4double	MaxSecondaryKinEnergy (const G4DynamicParticle *dynParticle)

const G4String &	GetName () const

void	SetCurrentCouple (const G4MaterialCutsCouple *)

const G4Element *	GetCurrentElement () const

Protected Member Functions
void	DefineMaterial (const G4MaterialCutsCouple *)

void	SetupParticle (const G4ParticleDefinition *)

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
G4ParticleTable *	theParticleTable

G4ParticleChangeForGamma *	fParticleChange

G4NistManager *	fNistManager

G4ScreeningMottCrossSection *	Mottcross

const std::vector< G4double > *	pCuts

const G4MaterialCutsCouple *	currentCouple

const G4Material *	currentMaterial

const G4Element *	currentElement

G4int	currentMaterialIndex

G4double	cosThetaMin

G4double	recoilThreshold

const G4ParticleDefinition *	particle

G4double	mass

G4double	lowEnergyLimit

Protected Attributes inherited from G4VEmModel
G4VParticleChange *	pParticleChange

G4PhysicsTable *	xSectionTable

const std::vector< G4double > *	theDensityFactor

const std::vector< G4int > *	theDensityIdx

Detailed Description

Definition at line 66 of file G4eSingleCoulombScatteringModel.hh.

Constructor & Destructor Documentation

◆ G4eSingleCoulombScatteringModel()

G4eSingleCoulombScatteringModel::G4eSingleCoulombScatteringModel ( const G4String & nam = "eSingleCoulombScattering" )

Definition at line 70 of file G4eSingleCoulombScatteringModel.cc.

  : G4VEmModel(nam),
 
    cosThetaMin(1.0),
    isInitialised(false)
{
    fNistManager = G4NistManager::Instance();
    theParticleTable = G4ParticleTable::GetParticleTable();
    fParticleChange = 0;
 
    pCuts=0;
    currentMaterial = 0;
    currentElement  = 0;
        currentCouple = 0;
 
        lowEnergyLimit  = 0*eV;
    recoilThreshold = 0.*eV;
    particle = 0;
    mass=0;
    currentMaterialIndex = -1;
 
    Mottcross = new G4ScreeningMottCrossSection(); 
 
}

◆ ~G4eSingleCoulombScatteringModel()

G4eSingleCoulombScatteringModel::~G4eSingleCoulombScatteringModel ( )

virtual

Definition at line 98 of file G4eSingleCoulombScatteringModel.cc.

99{ delete Mottcross;}

Member Function Documentation

◆ ComputeCrossSectionPerAtom()

G4double G4eSingleCoulombScatteringModel::ComputeCrossSectionPerAtom	(	const G4ParticleDefinition *	p,
		G4double	kinEnergy,
		G4double	Z,
		G4double	A,
		G4double	cut,
		G4double	emax
	)

virtual

Reimplemented from G4VEmModel.

Definition at line 123 of file G4eSingleCoulombScatteringModel.cc.

{
 
    SetupParticle(p);
 
    G4double cross =0.0;
    if(kinEnergy < lowEnergyLimit) return cross;
 
    DefineMaterial(CurrentCouple());
 
    //Total Cross section
        Mottcross->SetupKinematic(kinEnergy, Z);
    cross = Mottcross->NuclearCrossSection();
 
    //cout<< "....cross "<<G4BestUnit(cross,"Surface") << " cm2 "<< cross/cm2 <<endl;
  return cross;
}

◆ DefineMaterial()

void G4eSingleCoulombScatteringModel::DefineMaterial ( const G4MaterialCutsCouple * cup )

inlineprotected

Definition at line 148 of file G4eSingleCoulombScatteringModel.hh.

{ 
    if(cup != currentCouple) {
            currentCouple = cup;
            currentMaterial = cup->GetMaterial();
                currentMaterialIndex = currentCouple->GetIndex();
 
        }
}

Referenced by ComputeCrossSectionPerAtom(), and SampleSecondaries().

◆ Initialise()

void G4eSingleCoulombScatteringModel::Initialise	(	const G4ParticleDefinition *	p,
		const G4DataVector &
	)

virtual

Implements G4VEmModel.

Definition at line 103 of file G4eSingleCoulombScatteringModel.cc.

{
    SetupParticle(p);
    currentCouple = 0;
    currentMaterialIndex = -1;
    cosThetaMin = cos(PolarAngleLimit());
    Mottcross->Initialise(p,cosThetaMin);
 
        pCuts = G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(3);
 
 
    if(!isInitialised) {
      isInitialised = true;
      fParticleChange = GetParticleChangeForGamma();
    }
}

◆ SampleSecondaries()

void G4eSingleCoulombScatteringModel::SampleSecondaries	(	std::vector< G4DynamicParticle * > *	fvect,
		const G4MaterialCutsCouple *	couple,
		const G4DynamicParticle *	dp,
		G4double	tmin,
		G4double	maxEnergy
	)

virtual

Implements G4VEmModel.

Definition at line 149 of file G4eSingleCoulombScatteringModel.cc.

{
    G4double kinEnergy = dp->GetKineticEnergy();
    //cout<<"--- kinEnergy "<<kinEnergy<<endl;
 
 
    if(kinEnergy < lowEnergyLimit) return;
    
    DefineMaterial(couple);
    SetupParticle(dp->GetDefinition());
 
    // Choose nucleus
    currentElement = SelectRandomAtom(couple,particle,
                                    kinEnergy,cutEnergy,kinEnergy);//last two :cutEnergy= min e kinEnergy=max
 
    G4double Z  = currentElement->GetZ();
    G4int iz    = G4int(Z);
    G4int ia = SelectIsotopeNumber(currentElement);
 
    //cout<<"Element "<<currentElement->GetName()<<endl;;   
 
    G4double cross= Mottcross->GetTotalCross();
 
 
    if(cross == 0.0)return;
            
    G4ThreeVector dir = dp->GetMomentumDirection(); //old direction
    G4ThreeVector newDirection=Mottcross->GetNewDirection();//new direction
    newDirection.rotateUz(dir);   
  
    fParticleChange->ProposeMomentumDirection(newDirection);   
  
    //Recoil energy
    G4double trec= Mottcross->GetTrec();
    //Energy after scattering   
        G4double finalT = kinEnergy - trec;
 
 
    if(finalT <= lowEnergyLimit) { 
            trec = kinEnergy;  
            finalT = 0.0;
        } 
    
    fParticleChange->SetProposedKineticEnergy(finalT);
 
    G4double tcut = recoilThreshold;
        if(pCuts) { tcut= std::min(tcut,(*pCuts)[currentMaterialIndex]); 
        }
 
 
    if(trec > tcut) {
 
        //cout<<"Trec "<<trec/eV<<endl;
            G4ParticleDefinition* ion = theParticleTable->GetIon(iz, ia, 0.0);
 
        //incident before scattering
        G4double ptot=sqrt(Mottcross->GetMom2Lab());
        //incident after scattering
            G4double plab = sqrt(finalT*(finalT + 2.0*mass));
            G4ThreeVector p2 = (ptot*dir - plab*newDirection).unit();
        //secondary particle
            G4DynamicParticle* newdp  = new G4DynamicParticle(ion, p2, trec);
                fvect->push_back(newdp);
            }
 
    else if(trec > 0.0) {
                fParticleChange->ProposeNonIonizingEnergyDeposit(trec);
        if(trec< tcut) fParticleChange->ProposeLocalEnergyDeposit(trec);
        }
 
 
}

◆ SetRecoilThreshold()

void G4eSingleCoulombScatteringModel::SetRecoilThreshold ( G4double eth )

inline

Definition at line 171 of file G4eSingleCoulombScatteringModel.hh.

{
    recoilThreshold = eth;
}

◆ SetupParticle()

void G4eSingleCoulombScatteringModel::SetupParticle ( const G4ParticleDefinition * p )

inlineprotected

Definition at line 161 of file G4eSingleCoulombScatteringModel.hh.

{
    if(p != particle) {
            particle = p;
            mass = particle->GetPDGMass();
        Mottcross->SetupParticle(p);
        }
}

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

Member Data Documentation

◆ cosThetaMin

G4double G4eSingleCoulombScatteringModel::cosThetaMin

protected

Definition at line 131 of file G4eSingleCoulombScatteringModel.hh.

Referenced by Initialise().

◆ currentCouple

const G4MaterialCutsCouple* G4eSingleCoulombScatteringModel::currentCouple

protected

Definition at line 125 of file G4eSingleCoulombScatteringModel.hh.

Referenced by DefineMaterial(), G4eSingleCoulombScatteringModel(), and Initialise().

◆ currentElement

const G4Element* G4eSingleCoulombScatteringModel::currentElement

protected

Definition at line 127 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), and SampleSecondaries().

◆ currentMaterial

const G4Material* G4eSingleCoulombScatteringModel::currentMaterial

protected

Definition at line 126 of file G4eSingleCoulombScatteringModel.hh.

Referenced by DefineMaterial(), and G4eSingleCoulombScatteringModel().

◆ currentMaterialIndex

G4int G4eSingleCoulombScatteringModel::currentMaterialIndex

protected

Definition at line 128 of file G4eSingleCoulombScatteringModel.hh.

Referenced by DefineMaterial(), G4eSingleCoulombScatteringModel(), Initialise(), and SampleSecondaries().

◆ fNistManager

G4NistManager* G4eSingleCoulombScatteringModel::fNistManager

protected

Definition at line 121 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel().

◆ fParticleChange

G4ParticleChangeForGamma* G4eSingleCoulombScatteringModel::fParticleChange

protected

Definition at line 120 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), Initialise(), and SampleSecondaries().

◆ lowEnergyLimit

G4double G4eSingleCoulombScatteringModel::lowEnergyLimit

protected

Definition at line 138 of file G4eSingleCoulombScatteringModel.hh.

Referenced by ComputeCrossSectionPerAtom(), G4eSingleCoulombScatteringModel(), and SampleSecondaries().

◆ mass

G4double G4eSingleCoulombScatteringModel::mass

protected

Definition at line 137 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), SampleSecondaries(), and SetupParticle().

◆ Mottcross

G4ScreeningMottCrossSection* G4eSingleCoulombScatteringModel::Mottcross

protected

Definition at line 122 of file G4eSingleCoulombScatteringModel.hh.

Referenced by ComputeCrossSectionPerAtom(), G4eSingleCoulombScatteringModel(), Initialise(), SampleSecondaries(), SetupParticle(), and ~G4eSingleCoulombScatteringModel().

◆ particle

const G4ParticleDefinition* G4eSingleCoulombScatteringModel::particle

protected

Definition at line 136 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), SampleSecondaries(), and SetupParticle().

◆ pCuts

const std::vector<G4double>* G4eSingleCoulombScatteringModel::pCuts

protected

Definition at line 124 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), Initialise(), and SampleSecondaries().

◆ recoilThreshold

G4double G4eSingleCoulombScatteringModel::recoilThreshold

protected

Definition at line 132 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), SampleSecondaries(), and SetRecoilThreshold().

◆ theParticleTable

G4ParticleTable* G4eSingleCoulombScatteringModel::theParticleTable

protected

Definition at line 119 of file G4eSingleCoulombScatteringModel.hh.

Referenced by G4eSingleCoulombScatteringModel(), and SampleSecondaries().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ G4eSingleCoulombScatteringModel()

◆ ~G4eSingleCoulombScatteringModel()

Member Function Documentation

◆ ComputeCrossSectionPerAtom()

◆ DefineMaterial()

◆ Initialise()

◆ SampleSecondaries()

◆ SetRecoilThreshold()

◆ SetupParticle()

Member Data Documentation

◆ cosThetaMin

◆ currentCouple

◆ currentElement

◆ currentMaterial

◆ currentMaterialIndex

◆ fNistManager

◆ fParticleChange

◆ lowEnergyLimit

◆ mass

◆ Mottcross

◆ particle

◆ pCuts

◆ recoilThreshold

◆ theParticleTable