#include <G4BraggIonModel.hh>

Inheritance diagram for G4BraggIonModel:

Public Member Functions
	G4BraggIonModel (const G4ParticleDefinition *p=nullptr, const G4String &nam="BraggIon")

	~G4BraggIonModel () override

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

G4double	ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kineticEnergy, G4double Z, G4double A, G4double cutEnergy, G4double maxEnergy) override

G4double	CrossSectionPerVolume (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy, G4double maxEnergy) override

G4double	ComputeDEDXPerVolume (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy) override

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

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

G4BraggIonModel &	operator= (const G4BraggIonModel &right)=delete

	G4BraggIonModel (const G4BraggIonModel &)=delete

Public Member Functions inherited from G4BraggModel
	G4BraggModel (const G4ParticleDefinition *p=nullptr, const G4String &nam="Bragg")

	~G4BraggModel () override

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

G4double	MinEnergyCut (const G4ParticleDefinition , const G4MaterialCutsCouple couple) override

G4double	ComputeCrossSectionPerElectron (const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy, G4double maxEnergy)

G4double	ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kineticEnergy, G4double Z, G4double A, G4double cutEnergy, G4double maxEnergy) override

G4double	CrossSectionPerVolume (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy, G4double maxEnergy) override

G4double	ComputeDEDXPerVolume (const G4Material , const G4ParticleDefinition , G4double kineticEnergy, G4double cutEnergy) override

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

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

G4double	GetParticleCharge (const G4ParticleDefinition p, const G4Material mat, G4double kineticEnergy) override

G4BraggModel &	operator= (const G4BraggModel &right)=delete

	G4BraggModel (const G4BraggModel &)=delete

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	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 void	StartTracking (G4Track *)

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

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

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 G4BraggModel
void	SetParticle (const G4ParticleDefinition *p)

G4double	MaxSecondaryEnergy (const G4ParticleDefinition *, G4double kinEnergy) final

void	SetChargeSquareRatio (G4double val)

Protected Member Functions inherited from G4VEmModel
G4ParticleChangeForLoss *	GetParticleChangeForLoss ()

G4ParticleChangeForGamma *	GetParticleChangeForGamma ()

const G4MaterialCutsCouple *	CurrentCouple () const

void	SetCurrentElement (const G4Element *)

Protected Attributes inherited from G4BraggModel
const G4ParticleDefinition *	particle = nullptr

G4ParticleDefinition *	theElectron = nullptr

G4ParticleChangeForLoss *	fParticleChange = nullptr

const G4Material *	currentMaterial = nullptr

const G4Material *	baseMaterial = nullptr

G4EmCorrections *	corr = nullptr

G4double	mass = 0.0

G4double	spin = 0.0

G4double	chargeSquare = 1.0

G4double	massRate = 1.0

G4double	ratio = 1.0

G4double	protonMassAMU = 1.007276

G4double	lowestKinEnergy

G4double	theZieglerFactor

G4double	expStopPower125

G4int	iMolecula = -1

G4int	iPSTAR = -1

G4int	iICRU90 = -1

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 G4BraggModel
static G4ICRU90StoppingData *	fICRU90 = nullptr

static G4PSTARStopping *	fPSTAR = nullptr

Detailed Description

Definition at line 63 of file G4BraggIonModel.hh.

Constructor & Destructor Documentation

◆ G4BraggIonModel() [1/2]

G4BraggIonModel::G4BraggIonModel	(	const G4ParticleDefinition *	p = nullptr,
		const G4String &	nam = "BraggIon" )

explicit

Definition at line 83 of file G4BraggIonModel.cc.

  : G4BraggModel(p, nam)
{
  HeMass = 3.727417*CLHEP::GeV;
  massFactor = 1000.*CLHEP::amu_c2/HeMass;
}

◆ ~G4BraggIonModel()

G4BraggIonModel::~G4BraggIonModel ( )

override

Definition at line 93 of file G4BraggIonModel.cc.

{
  if(isFirstAlpha) { 
    delete fASTAR; 
    fASTAR = nullptr;
  }
}

◆ G4BraggIonModel() [2/2]

G4BraggIonModel::G4BraggIonModel ( const G4BraggIonModel & )

delete

Member Function Documentation

◆ ComputeCrossSectionPerAtom()

G4double G4BraggIonModel::ComputeCrossSectionPerAtom	(	const G4ParticleDefinition *	p,
		G4double	kineticEnergy,
		G4double	Z,
		G4double	A,
		G4double	cutEnergy,
		G4double	maxEnergy )

overridevirtual

Reimplemented from G4VEmModel.

Definition at line 136 of file G4BraggIonModel.cc.

{
  G4double sigma = 
    Z*ComputeCrossSectionPerElectron(p,kinEnergy,cutEnergy,maxEnergy);
  if(isAlpha) {
    sigma *= (HeEffChargeSquare(Z, kinEnergy/CLHEP::MeV)/chargeSquare);
  }
  return sigma;
}

◆ ComputeDEDXPerVolume()

G4double G4BraggIonModel::ComputeDEDXPerVolume	(	const G4Material *	material,
		const G4ParticleDefinition *	p,
		G4double	kineticEnergy,
		G4double	cutEnergy )

overridevirtual

Reimplemented from G4VEmModel.

Reimplemented in G4BraggNoDeltaModel.

Definition at line 172 of file G4BraggIonModel.cc.

{
  const G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
  const G4double tlim = lowestKinEnergy*massRate;
  const G4double tmin = std::max(std::min(cut, tmax), tlim);
  G4double dedx = 0.0;
 
  if(kineticEnergy < tlim) {
    dedx = HeDEDX(material, tlim)*std::sqrt(kineticEnergy/tlim);
  } else {
    dedx = HeDEDX(material, kineticEnergy);
 
    if (tmin < tmax) {
      const G4double tau = kineticEnergy/mass;
      const G4double x   = tmin/tmax;
 
      G4double del = 
        (G4Log(x)*(tau + 1.)*(tau + 1.)/(tau * (tau + 2.0)) + 1.0 - x) * 
    CLHEP::twopi_mc2_rcl2*material->GetElectronDensity();
      if(isAlpha) {
    const G4double zeff = material->GetTotNbOfElectPerVolume()/
      material->GetTotNbOfAtomsPerVolume();
    heChargeSquare = HeEffChargeSquare(zeff, kineticEnergy/CLHEP::MeV);
    del *= heChargeSquare;
      }
      dedx += del;
    }
  }
  dedx = std::max(dedx, 0.0);
  /*  
    G4cout << "BraggIon: " << material->GetName() 
           << " E(MeV)=" << kineticEnergy/MeV
           << " Tmin(MeV)=" << tmin << " dedx(MeV*cm^2/g)=" 
           << dedx*gram/(MeV*cm2*material->GetDensity()) 
           << " q2=" << chargeSquare << G4endl;
  */
  return dedx;
}

Referenced by G4BraggNoDeltaModel::ComputeDEDXPerVolume().

◆ CorrectionsAlongStep()

void G4BraggIonModel::CorrectionsAlongStep	(	const G4MaterialCutsCouple *	couple,
		const G4DynamicParticle *	dp,
		const G4double &	length,
		G4double &	eloss )

overridevirtual

Reimplemented from G4VEmModel.

Definition at line 216 of file G4BraggIonModel.cc.

{
  // no correction for alpha
  if(isAlpha) { return; }
 
  // no correction at a small step at the last step
  const G4double preKinEnergy = dp->GetKineticEnergy();
  if(eloss >= preKinEnergy || eloss < preKinEnergy*0.05) { return; }
 
  // corrections only for ions
  const G4ParticleDefinition* p = dp->GetDefinition();
  if(p != particle) { SetParticle(p); }
 
  // effective energy and charge at a step
  const G4Material* mat = couple->GetMaterial();
  const G4double e = std::max(preKinEnergy - eloss*0.5, preKinEnergy*0.5);
  const G4double q20 = corr->EffectiveChargeSquareRatio(p, mat, preKinEnergy);
  const G4double q2 = corr->EffectiveChargeSquareRatio(p, mat, e);
  const G4double qfactor = q2/q20;
  /*
    G4cout << "G4BraggIonModel::CorrectionsAlongStep: Epre(MeV)="
    << preKinEnergy << " Eeff(MeV)=" << e
    << " eloss=" << eloss << " elossnew=" << eloss*qfactor 
    << " qfactor=" << qfactor << " Qpre=" << q20 
    << p->GetParticleName() <<G4endl;
  */
  eloss *= qfactor;
}

◆ CrossSectionPerVolume()

G4double G4BraggIonModel::CrossSectionPerVolume	(	const G4Material *	material,
		const G4ParticleDefinition *	p,
		G4double	kineticEnergy,
		G4double	cutEnergy,
		G4double	maxEnergy )

overridevirtual

Reimplemented from G4VEmModel.

Reimplemented in G4BraggNoDeltaModel.

Definition at line 153 of file G4BraggIonModel.cc.

{
  G4double sigma = material->GetElectronDensity()* 
    ComputeCrossSectionPerElectron(p,kinEnergy,cutEnergy,maxEnergy);
  if(isAlpha) {
    const G4double zeff = material->GetTotNbOfElectPerVolume()/
      material->GetTotNbOfAtomsPerVolume();
    sigma *= (HeEffChargeSquare(zeff, kinEnergy/CLHEP::MeV)/chargeSquare);
  }
  return sigma;
}

◆ GetChargeSquareRatio()

G4double G4BraggIonModel::GetChargeSquareRatio	(	const G4ParticleDefinition *	p,
		const G4Material *	mat,
		G4double	kineticEnergy )

overridevirtual

Reimplemented from G4VEmModel.

Definition at line 125 of file G4BraggIonModel.cc.

{
  // this method is called only for ions, so no check if it is an ion
  if(isAlpha) { return 1.0; }
  return G4BraggModel::GetChargeSquareRatio(p, mat, kinEnergy);
}

◆ Initialise()

void G4BraggIonModel::Initialise	(	const G4ParticleDefinition *	p,
		const G4DataVector &	ref )

overridevirtual

Implements G4VEmModel.

Definition at line 103 of file G4BraggIonModel.cc.

{
  G4BraggModel::Initialise(p, ref);
  const G4String& pname = particle->GetParticleName();
  if(pname == "alpha") { isAlpha = true; }
  if(isAlpha && fASTAR == nullptr) {
    G4AutoLock l(&alphaMutex);
    if(fASTAR == nullptr) {
      isFirstAlpha = true;
      fASTAR = new G4ASTARStopping();
    }
    l.unlock();
  }
  if(isFirstAlpha) {
    fASTAR->Initialise();
  }
}

◆ operator=()

G4BraggIonModel & G4BraggIonModel::operator= ( const G4BraggIonModel & right )

delete

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ G4BraggIonModel() [1/2]

◆ ~G4BraggIonModel()

◆ G4BraggIonModel() [2/2]

Member Function Documentation

◆ ComputeCrossSectionPerAtom()

◆ ComputeDEDXPerVolume()

◆ CorrectionsAlongStep()

◆ CrossSectionPerVolume()

◆ GetChargeSquareRatio()

◆ Initialise()

◆ operator=()