#include <G4WHadronElasticProcess.hh>

Inheritance diagram for G4WHadronElasticProcess:

Public Member Functions
	G4WHadronElasticProcess (const G4String &procName="hadElastic")

virtual	~G4WHadronElasticProcess ()

virtual G4VParticleChange *	PostStepDoIt (const G4Track &aTrack, const G4Step &aStep)

void	SetLowestEnergy (G4double)

void	SetLowestEnergyNeutron (G4double)

virtual void	Description () const

Public Member Functions inherited from G4HadronicProcess
	G4HadronicProcess (const G4String &processName="Hadronic", G4ProcessType procType=fHadronic)

	G4HadronicProcess (const G4String &processName, G4HadronicProcessType subType)

virtual	~G4HadronicProcess ()

void	RegisterMe (G4HadronicInteraction *a)

G4double	GetElementCrossSection (const G4DynamicParticle part, const G4Element elm, const G4Material *mat=0)

G4double	GetMicroscopicCrossSection (const G4DynamicParticle part, const G4Element elm, const G4Material *mat=0)

virtual G4VParticleChange *	PostStepDoIt (const G4Track &aTrack, const G4Step &aStep)

virtual void	PreparePhysicsTable (const G4ParticleDefinition &)

virtual void	BuildPhysicsTable (const G4ParticleDefinition &)

void	DumpPhysicsTable (const G4ParticleDefinition &p)

void	AddDataSet (G4VCrossSectionDataSet *aDataSet)

G4EnergyRangeManager *	GetManagerPointer ()

G4double	GetMeanFreePath (const G4Track &aTrack, G4double, G4ForceCondition *)

const G4Nucleus *	GetTargetNucleus () const

const G4Isotope *	GetTargetIsotope ()

virtual void	ProcessDescription (std::ostream &outFile) const

void	BiasCrossSectionByFactor (G4double aScale)

void	SetEpReportLevel (G4int level)

void	SetEnergyMomentumCheckLevels (G4double relativeLevel, G4double absoluteLevel)

std::pair< G4double, G4double >	GetEnergyMomentumCheckLevels () const

G4CrossSectionDataStore *	GetCrossSectionDataStore ()

void	MultiplyCrossSectionBy (G4double factor)

Public Member Functions inherited from G4VDiscreteProcess
	G4VDiscreteProcess (const G4String &, G4ProcessType aType=fNotDefined)

	G4VDiscreteProcess (G4VDiscreteProcess &)

virtual	~G4VDiscreteProcess ()

virtual G4double	PostStepGetPhysicalInteractionLength (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)

virtual G4VParticleChange *	PostStepDoIt (const G4Track &, const G4Step &)

virtual G4double	AlongStepGetPhysicalInteractionLength (const G4Track &, G4double, G4double, G4double &, G4GPILSelection *)

virtual G4double	AtRestGetPhysicalInteractionLength (const G4Track &, G4ForceCondition *)

virtual G4VParticleChange *	AtRestDoIt (const G4Track &, const G4Step &)

virtual G4VParticleChange *	AlongStepDoIt (const G4Track &, const G4Step &)

Public Member Functions inherited from G4VProcess
	G4VProcess (const G4String &aName="NoName", G4ProcessType aType=fNotDefined)

	G4VProcess (const G4VProcess &right)

virtual	~G4VProcess ()

G4int	operator== (const G4VProcess &right) const

G4int	operator!= (const G4VProcess &right) const

virtual G4VParticleChange *	PostStepDoIt (const G4Track &track, const G4Step &stepData)=0

virtual G4VParticleChange *	AlongStepDoIt (const G4Track &track, const G4Step &stepData)=0

virtual G4VParticleChange *	AtRestDoIt (const G4Track &track, const G4Step &stepData)=0

virtual G4double	AlongStepGetPhysicalInteractionLength (const G4Track &track, G4double previousStepSize, G4double currentMinimumStep, G4double &proposedSafety, G4GPILSelection *selection)=0

virtual G4double	AtRestGetPhysicalInteractionLength (const G4Track &track, G4ForceCondition *condition)=0

virtual G4double	PostStepGetPhysicalInteractionLength (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)=0

G4double	GetCurrentInteractionLength () const

void	SetPILfactor (G4double value)

G4double	GetPILfactor () const

G4double	AlongStepGPIL (const G4Track &track, G4double previousStepSize, G4double currentMinimumStep, G4double &proposedSafety, G4GPILSelection *selection)

G4double	AtRestGPIL (const G4Track &track, G4ForceCondition *condition)

G4double	PostStepGPIL (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)

virtual G4bool	IsApplicable (const G4ParticleDefinition &)

virtual void	BuildPhysicsTable (const G4ParticleDefinition &)

virtual void	PreparePhysicsTable (const G4ParticleDefinition &)

virtual G4bool	StorePhysicsTable (const G4ParticleDefinition *, const G4String &, G4bool)

virtual G4bool	RetrievePhysicsTable (const G4ParticleDefinition *, const G4String &, G4bool)

const G4String &	GetPhysicsTableFileName (const G4ParticleDefinition *, const G4String &directory, const G4String &tableName, G4bool ascii=false)

const G4String &	GetProcessName () const

G4ProcessType	GetProcessType () const

void	SetProcessType (G4ProcessType)

G4int	GetProcessSubType () const

void	SetProcessSubType (G4int)

virtual void	StartTracking (G4Track *)

virtual void	EndTracking ()

virtual void	SetProcessManager (const G4ProcessManager *)

virtual const G4ProcessManager *	GetProcessManager ()

virtual void	ResetNumberOfInteractionLengthLeft ()

G4double	GetNumberOfInteractionLengthLeft () const

G4double	GetTotalNumberOfInteractionLengthTraversed () const

G4bool	isAtRestDoItIsEnabled () const

G4bool	isAlongStepDoItIsEnabled () const

G4bool	isPostStepDoItIsEnabled () const

virtual void	DumpInfo () const

void	SetVerboseLevel (G4int value)

G4int	GetVerboseLevel () const

Additional Inherited Members
Static Public Member Functions inherited from G4VProcess
static const G4String &	GetProcessTypeName (G4ProcessType)

Protected Member Functions inherited from G4HadronicProcess
G4HadronicInteraction *	ChooseHadronicInteraction (G4double kineticEnergy, G4Material aMaterial, G4Element anElement)

G4Nucleus *	GetTargetNucleusPointer ()

void	DumpState (const G4Track &, const G4String &, G4ExceptionDescription &)

const G4EnergyRangeManager &	GetEnergyRangeManager () const

void	SetEnergyRangeManager (const G4EnergyRangeManager &value)

G4HadronicInteraction *	GetHadronicInteraction () const

G4double	GetLastCrossSection ()

void	FillResult (G4HadFinalState *aR, const G4Track &aT)

G4HadFinalState *	CheckResult (const G4HadProjectile &thePro, const G4Nucleus &targetNucleus, G4HadFinalState *result) const

void	CheckEnergyMomentumConservation (const G4Track &, const G4Nucleus &)

virtual G4double	GetMeanFreePath (const G4Track &aTrack, G4double previousStepSize, G4ForceCondition *condition)=0

Protected Member Functions inherited from G4VProcess
void	SubtractNumberOfInteractionLengthLeft (G4double previousStepSize)

void	ClearNumberOfInteractionLengthLeft ()

Protected Attributes inherited from G4HadronicProcess
G4HadProjectile	thePro

G4ParticleChange *	theTotalResult

G4int	epReportLevel

Protected Attributes inherited from G4VProcess
const G4ProcessManager *	aProcessManager

G4VParticleChange *	pParticleChange

G4ParticleChange	aParticleChange

G4double	theNumberOfInteractionLengthLeft

G4double	currentInteractionLength

G4double	theInitialNumberOfInteractionLength

G4String	theProcessName

G4String	thePhysicsTableFileName

G4ProcessType	theProcessType

G4int	theProcessSubType

G4double	thePILfactor

G4bool	enableAtRestDoIt

G4bool	enableAlongStepDoIt

G4bool	enablePostStepDoIt

G4int	verboseLevel

Detailed Description

Definition at line 52 of file G4WHadronElasticProcess.hh.

Constructor & Destructor Documentation

◆ G4WHadronElasticProcess()

G4WHadronElasticProcess::G4WHadronElasticProcess ( const G4String & procName = "hadElastic" )

Definition at line 60 of file G4WHadronElasticProcess.cc.

  : G4HadronicProcess(pName, fHadronElastic) {
  AddDataSet(new G4HadronElasticDataSet);
  theNeutron  = G4Neutron::Neutron();
  lowestEnergy = 1.*keV;
  lowestEnergyNeutron = 1.e-6*eV;
  G4HadronicDeprecate("G4WHadronElasticProcess");
}

◆ ~G4WHadronElasticProcess()

G4WHadronElasticProcess::~G4WHadronElasticProcess ( )

virtual

Definition at line 69 of file G4WHadronElasticProcess.cc.

70{}

Member Function Documentation

◆ Description()

void G4WHadronElasticProcess::Description ( ) const

virtual

Definition at line 72 of file G4WHadronElasticProcess.cc.

{
  char* dirName = getenv("G4PhysListDocDir");
  if (dirName) {
    std::ofstream outFile;
    G4String outFileName = GetProcessName() + ".html";
    G4String pathName = G4String(dirName) + "/" + outFileName;
    outFile.open(pathName);
    outFile << "<html>\n";
    outFile << "<head>\n";
 
    outFile << "<title>Description of G4WHadronElasticProcess</title>\n";
    outFile << "</head>\n";
    outFile << "<body>\n";
 
    outFile << "G4WHadronElasticProcess handles the elastic scattering of\n"
            << "hadrons by invoking one or more hadronic models and one or\n"
            << "more hadronic cross sections.\n";
 
    outFile << "</body>\n";
    outFile << "</html>\n";
    outFile.close();
  }
}

◆ PostStepDoIt()

G4VParticleChange * G4WHadronElasticProcess::PostStepDoIt	(	const G4Track &	aTrack,
		const G4Step &	aStep
	)

virtual

! is not needed for models inheriting G4HadronElastic

Reimplemented from G4HadronicProcess.

Definition at line 99 of file G4WHadronElasticProcess.cc.

{
  theTotalResult->Clear();
  theTotalResult->Initialize(track);
  G4double weight = track.GetWeight();
  theTotalResult->ProposeWeight(weight);
 
  // For elastic scattering, _any_ result is considered an interaction
  ClearNumberOfInteractionLengthLeft();
 
  G4double kineticEnergy = track.GetKineticEnergy();
  const G4DynamicParticle* dynParticle = track.GetDynamicParticle();
  const G4ParticleDefinition* part = dynParticle->GetDefinition();
 
  // NOTE:  Very low energy scatters were causing numerical (FPE) errors
  //        in earlier releases; these limits have not been changed since.
  if (part == theNeutron) {
    if(kineticEnergy <= lowestEnergyNeutron) return theTotalResult;
  } else if(kineticEnergy <= lowestEnergy)   return theTotalResult;
 
  G4Material* material = track.GetMaterial();
  G4Nucleus* targNucleus = GetTargetNucleusPointer();
 
  // Select element
  G4Element* elm = 0;
  try
    {
      elm = GetCrossSectionDataStore()->SampleZandA(dynParticle, material, 
                            *targNucleus);
    }
  catch(G4HadronicException & aR)
    {
      G4ExceptionDescription ed;
      DumpState(track,"SampleZandA",ed); 
      ed << " PostStepDoIt failed on element selection" << G4endl;
      G4Exception("G4WHadronElasticProcess::PostStepDoIt", "had003", 
          FatalException, ed);
    }
  G4HadronicInteraction* hadi = 0;
  try
    {
      hadi = ChooseHadronicInteraction( kineticEnergy, material, elm );
    }
  catch(G4HadronicException & aE)
    {
      G4ExceptionDescription ed;
      ed << "Target element "<< elm->GetName()<<"  Z= " 
     << targNucleus->GetZ_asInt() << "  A= " 
     << targNucleus->GetA_asInt() << G4endl;
      DumpState(track,"ChooseHadronicInteraction",ed);
      ed << " No HadronicInteraction found out" << G4endl;
      G4Exception("G4WHadronElasticProcess::PostStepDoIt", "had005", 
          FatalException, ed);
    }
 
  size_t idx = track.GetMaterialCutsCouple()->GetIndex();
  G4double tcut = (*(G4ProductionCutsTable::GetProductionCutsTable()
             ->GetEnergyCutsVector(3)))[idx];
  hadi->SetRecoilEnergyThreshold(tcut);
 
  // Initialize the hadronic projectile from the track
  //  G4cout << "track " << track.GetDynamicParticle()->Get4Momentum()<<G4endl;
  G4HadProjectile theProj(track);
  if(verboseLevel>1) {
    G4cout << "G4WHadronElasticProcess::PostStepDoIt for " 
       << part->GetParticleName()
       << " in " << material->GetName() 
       << " Target Z= " << targNucleus->GetZ_asInt() 
       << " A= " << targNucleus->GetA_asInt() << G4endl; 
  }
 
  G4HadFinalState* result = 0;
  try
    {
      result = hadi->ApplyYourself( theProj, *targNucleus);
    }
  catch(G4HadronicException aR)
    {
      G4ExceptionDescription ed;
      ed << "Call for " << hadi->GetModelName() << G4endl;
      ed << "Target element "<< elm->GetName()<<"  Z= " 
     << targNucleus->GetZ_asInt() 
     << "  A= " << targNucleus->GetA_asInt() << G4endl;
      DumpState(track,"ApplyYourself",ed);
      ed << " ApplyYourself failed" << G4endl;
      G4Exception("G4WHadronElasticProcess::PostStepDoIt", "had006", 
          FatalException, ed);
    }
 
  // Check the result for catastrophic energy non-conservation
  // cannot be applied because is not guranteed that recoil 
  // nucleus is created
  // result = CheckResult(theProj, targNucleus, result);
 
  // directions
  G4ThreeVector indir = track.GetMomentumDirection();
  G4double phi = CLHEP::twopi*G4UniformRand();
  G4ThreeVector it(0., 0., 1.);
  G4ThreeVector outdir = result->GetMomentumChange();
 
  if(verboseLevel>1) {
    G4cout << "Efin= " << result->GetEnergyChange()
       << " de= " << result->GetLocalEnergyDeposit()
       << " nsec= " << result->GetNumberOfSecondaries()
       << " dir= " << outdir
       << G4endl;
  }
 
  // energies  
  G4double edep = result->GetLocalEnergyDeposit();
  G4double efinal = result->GetEnergyChange();
  if(efinal < 0.0) { efinal = 0.0; }
  if(edep < 0.0)   { edep = 0.0; }
 
  // NOTE:  Very low energy scatters were causing numerical (FPE) errors
  //        in earlier releases; these limits have not been changed since.
  if((part == theNeutron && efinal <= lowestEnergyNeutron) || 
     (part != theNeutron && efinal <= lowestEnergy)) {
    edep += efinal;
    efinal = 0.0;
  }
 
  // primary change
  theTotalResult->ProposeEnergy(efinal);
 
  G4TrackStatus status = track.GetTrackStatus();
  if(efinal > 0.0) {
    outdir.rotate(phi, it);
    outdir.rotateUz(indir);
    theTotalResult->ProposeMomentumDirection(outdir);
  } else {
    if(part->GetProcessManager()->GetAtRestProcessVector()->size() > 0)
         { status = fStopButAlive; }
    else { status = fStopAndKill; }
    theTotalResult->ProposeTrackStatus(status);
  }
 
  //G4cout << "Efinal= " << efinal << "  TrackStatus= " << status << G4endl;
 
  theTotalResult->SetNumberOfSecondaries(0);
 
  // recoil
  if(result->GetNumberOfSecondaries() > 0) {
    G4DynamicParticle* p = result->GetSecondary(0)->GetParticle();
 
    if(p->GetKineticEnergy() > lowestEnergy) {
      theTotalResult->SetNumberOfSecondaries(1);
      G4ThreeVector pdir = p->GetMomentumDirection();
      // G4cout << "recoil " << pdir << G4endl;
      //!! is not needed for models inheriting G4HadronElastic
      pdir.rotate(phi, it);
      pdir.rotateUz(indir);
      // G4cout << "recoil rotated " << pdir << G4endl;
      p->SetMomentumDirection(pdir);
 
      // in elastic scattering time and weight are not changed
      G4Track* t = new G4Track(p, track.GetGlobalTime(), 
                   track.GetPosition());
      t->SetWeight(weight);
      t->SetTouchableHandle(track.GetTouchableHandle());
      theTotalResult->AddSecondary(t);
 
    } else {
      edep += p->GetKineticEnergy();
      delete p;
    }
  }
  theTotalResult->ProposeLocalEnergyDeposit(edep);
  theTotalResult->ProposeNonIonizingEnergyDeposit(edep);
  result->Clear();
 
  return theTotalResult;
}

◆ SetLowestEnergy()

void G4WHadronElasticProcess::SetLowestEnergy ( G4double val )

inline

Definition at line 82 of file G4WHadronElasticProcess.hh.

{
  lowestEnergy = val;
}

◆ SetLowestEnergyNeutron()

void G4WHadronElasticProcess::SetLowestEnergyNeutron ( G4double val )

inline

Definition at line 88 of file G4WHadronElasticProcess.hh.

{
  lowestEnergyNeutron = val;
}

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ G4WHadronElasticProcess()

◆ ~G4WHadronElasticProcess()

Member Function Documentation

◆ Description()

◆ PostStepDoIt()

◆ SetLowestEnergy()

◆ SetLowestEnergyNeutron()