#include <G4HadronElasticProcess.hh>

Inheritance diagram for G4HadronElasticProcess:

Public Member Functions
	G4HadronElasticProcess (const G4String &procName="hadElastic")

	~G4HadronElasticProcess () override

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

virtual void	SetLowestEnergy (G4double)

virtual void	SetLowestEnergyNeutron (G4double)

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

void	SetDiffraction (G4HadronicInteraction , G4VCrossSectionRatio )

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

	G4HadronicProcess (const G4String &processName, G4HadronicProcessType subType)

	~G4HadronicProcess () override

void	RegisterMe (G4HadronicInteraction *a)

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

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

void	StartTracking (G4Track *track) override

G4double	PostStepGetPhysicalInteractionLength (const G4Track &track, G4double, G4ForceCondition *) override

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

void	PreparePhysicsTable (const G4ParticleDefinition &) override

void	BuildPhysicsTable (const G4ParticleDefinition &) override

void	DumpPhysicsTable (const G4ParticleDefinition &p)

void	AddDataSet (G4VCrossSectionDataSet *aDataSet)

std::vector< G4HadronicInteraction * > &	GetHadronicInteractionList ()

G4HadronicInteraction *	GetHadronicModel (const G4String &)

G4HadronicInteraction *	GetHadronicInteraction () const

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

const G4Nucleus *	GetTargetNucleus () const

G4Nucleus *	GetTargetNucleusPointer ()

const G4Isotope *	GetTargetIsotope ()

G4double	ComputeCrossSection (const G4ParticleDefinition , const G4Material , const G4double kinEnergy)

G4HadXSType	CrossSectionType () const

void	SetCrossSectionType (G4HadXSType val)

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

void	BiasCrossSectionByFactor (G4double aScale)

void	MultiplyCrossSectionBy (G4double factor)

G4double	CrossSectionFactor () const

void	SetIntegral (G4bool val)

void	SetEpReportLevel (G4int level)

void	SetEnergyMomentumCheckLevels (G4double relativeLevel, G4double absoluteLevel)

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

G4CrossSectionDataStore *	GetCrossSectionDataStore ()

std::vector< G4TwoPeaksHadXS * > *	TwoPeaksXS () const

std::vector< G4double > *	EnergyOfCrossSectionMax () const

G4HadronicProcess &	operator= (const G4HadronicProcess &right)=delete

	G4HadronicProcess (const G4HadronicProcess &)=delete

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

	G4VDiscreteProcess (G4VDiscreteProcess &)

virtual	~G4VDiscreteProcess ()

G4VDiscreteProcess &	operator= (const G4VDiscreteProcess &)=delete

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 &)

virtual G4double	GetCrossSection (const G4double, const G4MaterialCutsCouple *)

virtual G4double	MinPrimaryEnergy (const G4ParticleDefinition , const G4Material )

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

	G4VProcess (const G4VProcess &right)

virtual	~G4VProcess ()

G4VProcess &	operator= (const G4VProcess &)=delete

G4bool	operator== (const G4VProcess &right) const

G4bool	operator!= (const G4VProcess &right) const

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 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 const G4VProcess *	GetCreatorProcess () const

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

virtual void	SetMasterProcess (G4VProcess *masterP)

const G4VProcess *	GetMasterProcess () const

virtual void	BuildWorkerPhysicsTable (const G4ParticleDefinition &part)

virtual void	PrepareWorkerPhysicsTable (const G4ParticleDefinition &)

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

Protected Member Functions inherited from G4HadronicProcess
G4HadronicInteraction *	ChooseHadronicInteraction (const G4HadProjectile &aHadProjectile, G4Nucleus &aTargetNucleus, const G4Material aMaterial, const G4Element anElement)

G4double	GetLastCrossSection ()

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

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

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

void	CheckEnergyMomentumConservation (const G4Track &, const G4Nucleus &)

Protected Member Functions inherited from G4VDiscreteProcess
Protected Member Functions inherited from G4VProcess
void	SubtractNumberOfInteractionLengthLeft (G4double prevStepSize)

void	ClearNumberOfInteractionLengthLeft ()

Protected Attributes inherited from G4HadronicProcess
G4HadProjectile	thePro

G4ParticleChange *	theTotalResult

G4CrossSectionDataStore *	theCrossSectionDataStore

G4double	fWeight = 1.0

G4double	aScaleFactor = 1.0

G4double	theLastCrossSection = 0.0

G4double	mfpKinEnergy = DBL_MAX

G4int	epReportLevel = 0

G4HadXSType	fXSType = fHadNoIntegral

Protected Attributes inherited from G4VProcess
const G4ProcessManager *	aProcessManager = nullptr

G4VParticleChange *	pParticleChange = nullptr

G4ParticleChange	aParticleChange

G4double	theNumberOfInteractionLengthLeft = -1.0

G4double	currentInteractionLength = -1.0

G4double	theInitialNumberOfInteractionLength = -1.0

G4String	theProcessName

G4String	thePhysicsTableFileName

G4ProcessType	theProcessType = fNotDefined

G4int	theProcessSubType = -1

G4double	thePILfactor = 1.0

G4int	verboseLevel = 0

G4bool	enableAtRestDoIt = true

G4bool	enableAlongStepDoIt = true

G4bool	enablePostStepDoIt = true

Detailed Description

Definition at line 49 of file G4HadronElasticProcess.hh.

Constructor & Destructor Documentation

◆ G4HadronElasticProcess()

G4HadronElasticProcess::G4HadronElasticProcess ( const G4String & procName = "hadElastic" )

explicit

Definition at line 46 of file G4HadronElasticProcess.cc.

  : G4HadronicProcess(pName, fHadronElastic), 
    fDiffraction(nullptr), fDiffractionRatio(nullptr)
{}

◆ ~G4HadronElasticProcess()

G4HadronElasticProcess::~G4HadronElasticProcess ( )

override

Definition at line 51 of file G4HadronElasticProcess.cc.

52{}

Member Function Documentation

◆ PostStepDoIt()

G4VParticleChange * G4HadronElasticProcess::PostStepDoIt	(	const G4Track &	aTrack,
		const G4Step &	aStep )

overridevirtual

Reimplemented from G4VDiscreteProcess.

Definition at line 62 of file G4HadronElasticProcess.cc.

{
  theTotalResult->Clear();
  theTotalResult->Initialize(track);
  G4double weight = track.GetWeight();
  theTotalResult->ProposeWeight(weight);
 
  // For elastic scattering, _any_ result is considered an interaction
  theNumberOfInteractionLengthLeft = -1.0;
  //  ClearNumberOfInteractionLengthLeft();
 
  const G4DynamicParticle* dynParticle = track.GetDynamicParticle();
  G4double kineticEnergy = dynParticle->GetKineticEnergy();
  G4TrackStatus status = track.GetTrackStatus();
  if(kineticEnergy == 0.0 || track.GetTrackStatus() != fAlive) {
    return theTotalResult;
  }
 
  const G4Material* material = track.GetMaterial();
 
  // check only for charged particles
  if(fXSType != fHadNoIntegral) {
    mfpKinEnergy = DBL_MAX;
    G4double xs = aScaleFactor*
      theCrossSectionDataStore->ComputeCrossSection(dynParticle, material);
    if(xs < theLastCrossSection*G4UniformRand()) {
      // No interaction
      return theTotalResult;
    }    
  }
 
  const G4ParticleDefinition* part = dynParticle->GetDefinition();
  G4Nucleus* targNucleus = GetTargetNucleusPointer();
 
  // Select element
  const G4Element* elm = 
    theCrossSectionDataStore->SampleZandA(dynParticle, material, *targNucleus);
 
  // Initialize the hadronic projectile from the track
  G4HadProjectile theProj(track);
  G4HadronicInteraction* hadi = nullptr;
  G4HadFinalState* result = nullptr;
 
  if(nullptr != fDiffraction) {
    G4double ratio = 
      fDiffractionRatio->ComputeRatio(part, kineticEnergy,
                      targNucleus->GetZ_asInt(),
                      targNucleus->GetA_asInt());
    // diffraction is chosen
    if(ratio > 0.0 && G4UniformRand() < ratio) 
    {
      try
    {
      result = fDiffraction->ApplyYourself(theProj, *targNucleus);
    }
      catch(G4HadronicException & aR)
    {
      G4ExceptionDescription ed;
      aR.Report(ed);
      ed << "Call for " << fDiffraction->GetModelName() << G4endl;
      ed << part->GetParticleName() 
         << " off target element " << elm->GetName() << "  Z= " 
         << targNucleus->GetZ_asInt() 
         << "  A= " << targNucleus->GetA_asInt() << G4endl;
      DumpState(track,"ApplyYourself",ed);
      ed << " ApplyYourself failed" << G4endl;
      G4Exception("G4HadronElasticProcess::PostStepDoIt", "had006", 
              FatalException, ed);
    }
      // Check the result for catastrophic energy non-conservation
      result = CheckResult(theProj, *targNucleus, result);
      result->SetTrafoToLab(theProj.GetTrafoToLab());
 
      // The following method of the base class takes care also of setting
      // the creator model ID for the secondaries that are created
      FillResult(result, track);
 
      if (epReportLevel != 0) {
    CheckEnergyMomentumConservation(track, *targNucleus);
      }
      return theTotalResult;
    }
  }      
 
  // ordinary elastic scattering
  hadi = ChooseHadronicInteraction( theProj, *targNucleus, material, elm );
  if(nullptr == hadi) {
    G4ExceptionDescription ed;
    ed << part->GetParticleName() 
       << " off target element " << elm->GetName() << "  Z= " 
       << targNucleus->GetZ_asInt() << "  A= " 
       << targNucleus->GetA_asInt() << G4endl;
    DumpState(track,"ChooseHadronicInteraction",ed);
    ed << " No HadronicInteraction found out" << G4endl;
    G4Exception("G4HadronElasticProcess::PostStepDoIt", "had005", 
        FatalException, ed);
    return theTotalResult;
  }
 
  size_t idx = track.GetMaterialCutsCouple()->GetIndex();
  G4double tcut = (*(G4ProductionCutsTable::GetProductionCutsTable()
             ->GetEnergyCutsVector(3)))[idx];
  hadi->SetRecoilEnergyThreshold(tcut);
  /*
  if(verboseLevel>1) {
    G4cout << "G4HadronElasticProcess::PostStepDoIt for " 
       << part->GetParticleName()
       << " in " << material->GetName() 
       << " Target Z= " << targNucleus->GetZ_asInt() 
       << " A= " << targNucleus->GetA_asInt() 
       << " Tcut(MeV)= " << tcut << G4endl; 
  }
  */
  result = hadi->ApplyYourself( theProj, *targNucleus);
 
  // 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();
  G4ThreeVector outdir = result->GetMomentumChange();
  /*
  if(verboseLevel>1) {
    G4cout << "Efin= " << result->GetEnergyChange()
       << " de= " << result->GetLocalEnergyDeposit()
       << " nsec= " << result->GetNumberOfSecondaries()
       << " dir= " << outdir
       << G4endl;
  }
  */
  // energies  
  G4double edep = std::max(result->GetLocalEnergyDeposit(), 0.0);
  G4double efinal = std::max(result->GetEnergyChange(), 0.0);
 
  // primary change
  theTotalResult->ProposeEnergy(efinal);
 
  if(efinal > 0.0) {
    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 
     << " time(ns)=" << track.GetGlobalTime()/ns << G4endl;
  */
  theTotalResult->SetNumberOfSecondaries(0);
 
  // recoil
  if(result->GetNumberOfSecondaries() > 0) {
    G4DynamicParticle* p = result->GetSecondary(0)->GetParticle();
 
    if(p->GetKineticEnergy() > tcut) {
      theTotalResult->SetNumberOfSecondaries(1);
      G4ThreeVector pdir = p->GetMomentumDirection();
      // G4cout << "recoil " << pdir << G4endl;
      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());
      G4int secID = G4PhysicsModelCatalog::GetModelID( "model_" + hadi->GetModelName() );
      if ( secID > 0 ) t->SetCreatorModelID(secID);
      theTotalResult->AddSecondary(t);
 
    } else {
      edep += p->GetKineticEnergy();
      delete p;
    }
  }
  theTotalResult->ProposeLocalEnergyDeposit(edep);
  theTotalResult->ProposeNonIonizingEnergyDeposit(edep);
  result->Clear();
 
  return theTotalResult;
}

◆ ProcessDescription()

void G4HadronElasticProcess::ProcessDescription ( std::ostream & outFile ) const

overridevirtual

Reimplemented from G4VProcess.

Definition at line 54 of file G4HadronElasticProcess.cc.

{
  outFile << "G4HadronElasticProcess handles the elastic scattering of \n"
      << "hadrons by invoking the following hadronic model(s) and \n"
      << "hadronic cross section(s).\n";
}

◆ SetDiffraction()

void G4HadronElasticProcess::SetDiffraction	(	G4HadronicInteraction *	hi,
		G4VCrossSectionRatio *	xsr )

Definition at line 261 of file G4HadronElasticProcess.cc.

{
  if(hi && xsr) {
    fDiffraction = hi;
    fDiffractionRatio = xsr;
  }
}

Referenced by G4HadronHElasticPhysics::ConstructProcess().

◆ SetLowestEnergy()

void G4HadronElasticProcess::SetLowestEnergy ( G4double )

virtual

Definition at line 250 of file G4HadronElasticProcess.cc.

{
  PrintWarning("G4HadronElasticProcess::SetLowestEnergy(..) ");
}

◆ SetLowestEnergyNeutron()

void G4HadronElasticProcess::SetLowestEnergyNeutron ( G4double )