#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	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	CrossSectionPerVolume (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, 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 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 *)

Additional Inherited Members
Protected Attributes inherited from G4VEmModel
G4ElementData *	fElementData

G4VParticleChange *	pParticleChange

G4PhysicsTable *	xSectionTable

const std::vector< G4double > *	theDensityFactor

const std::vector< G4int > *	theDensityIdx

size_t	idxTable

Detailed Description

Definition at line 67 of file G4eSingleCoulombScatteringModel.hh.

Constructor & Destructor Documentation

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

Definition at line 74 of file G4eSingleCoulombScatteringModel.cc.

References python.hepunit::eV, G4ParticleTable::GetIonTable(), G4ParticleTable::GetParticleTable(), and G4NistManager::Instance().

   : G4VEmModel(nam),
 
     cosThetaMin(1.0),
     isInitialised(false)
 {
     fNistManager = G4NistManager::Instance();
     theIonTable = G4ParticleTable::GetParticleTable()->GetIonTable();
     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 ( )

virtual

Definition at line 101 of file G4eSingleCoulombScatteringModel.cc.

102 { delete Mottcross;}

Member Function Documentation

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

virtual

Reimplemented from G4VEmModel.

Definition at line 127 of file G4eSingleCoulombScatteringModel.cc.

References G4VEmModel::CurrentCouple(), DefineMaterial(), G4ScreeningMottCrossSection::NuclearCrossSection(), G4ScreeningMottCrossSection::SetupKinematic(), and SetupParticle().

 {
 
     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;
 }

void G4eSingleCoulombScatteringModel::DefineMaterial ( const G4MaterialCutsCouple * cup )

inlineprotected

Definition at line 136 of file G4eSingleCoulombScatteringModel.hh.

References G4Material::GetIndex(), and G4MaterialCutsCouple::GetMaterial().

Referenced by ComputeCrossSectionPerAtom(), and SampleSecondaries().

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

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

virtual

Implements G4VEmModel.

Definition at line 106 of file G4eSingleCoulombScatteringModel.cc.

References G4VEmModel::GetParticleChangeForGamma(), G4ScreeningMottCrossSection::Initialise(), G4VEmModel::PolarAngleLimit(), and SetupParticle().

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

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

virtual

Implements G4VEmModel.

Definition at line 153 of file G4eSingleCoulombScatteringModel.cc.

References DefineMaterial(), G4DynamicParticle::GetDefinition(), G4IonTable::GetIon(), G4DynamicParticle::GetKineticEnergy(), G4ScreeningMottCrossSection::GetMom2Lab(), G4DynamicParticle::GetMomentumDirection(), G4ScreeningMottCrossSection::GetNewDirection(), G4ScreeningMottCrossSection::GetTotalCross(), G4ScreeningMottCrossSection::GetTrec(), iz, G4INCL::Math::min(), G4VParticleChange::ProposeLocalEnergyDeposit(), G4ParticleChangeForGamma::ProposeMomentumDirection(), G4VParticleChange::ProposeNonIonizingEnergyDeposit(), CLHEP::Hep3Vector::rotateUz(), G4VEmModel::SelectIsotopeNumber(), G4VEmModel::SelectRandomAtom(), G4ParticleChangeForGamma::SetProposedKineticEnergy(), and SetupParticle().

 {
     G4double kinEnergy = dp->GetKineticEnergy();
     //cout<<"--- kinEnergy "<<kinEnergy<<endl;
 
     if(kinEnergy < lowEnergyLimit) return;
     
     DefineMaterial(couple);
     SetupParticle(dp->GetDefinition());
 
     // Choose nucleus
     //last two :cutEnergy= min e kinEnergy=max
     currentElement = SelectRandomAtom(couple,particle,
                       kinEnergy,cutEnergy,kinEnergy);
 
     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 
   if(trec > kinEnergy) { trec = kinEnergy; }
   G4double finalT = kinEnergy - trec;
   G4double edep = 0.0;
 
   G4double tcut = recoilThreshold;
   if(pCuts) { 
     tcut= std::min(tcut,(*pCuts)[currentMaterialIndex]); 
   }
 
   if(trec > tcut) {
 
     //cout<<"Trec "<<trec/eV<<endl;
     G4ParticleDefinition* ion = theIonTable->GetIon(iz, ia, 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) {
     edep = trec;
     fParticleChange->ProposeNonIonizingEnergyDeposit(trec);
   }
 
   // finelize primary energy and energy balance
   if(finalT <= lowEnergyLimit) { 
     edep += finalT;  
     finalT = 0.0;
   } 
   fParticleChange->SetProposedKineticEnergy(finalT);
   fParticleChange->ProposeLocalEnergyDeposit(edep);
 
 }

void G4eSingleCoulombScatteringModel::SetRecoilThreshold ( G4double eth )

inline

Definition at line 159 of file G4eSingleCoulombScatteringModel.hh.

 {
     recoilThreshold = eth;
 }

void G4eSingleCoulombScatteringModel::SetupParticle ( const G4ParticleDefinition * p )

inlineprotected

Definition at line 149 of file G4eSingleCoulombScatteringModel.hh.

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

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

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

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation