G4OpBoundaryProcess Class Reference

#include <G4OpBoundaryProcess.hh>

Inheritance diagram for G4OpBoundaryProcess:

Public Member Functions
	G4OpBoundaryProcess (const G4String &processName="OpBoundary", G4ProcessType type=fOptical)
	~G4OpBoundaryProcess ()
G4bool	IsApplicable (const G4ParticleDefinition &aParticleType)
G4double	GetMeanFreePath (const G4Track &, G4double, G4ForceCondition *condition)
G4VParticleChange *	PostStepDoIt (const G4Track &aTrack, const G4Step &aStep)
G4OpBoundaryProcessStatus	GetStatus () const
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 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
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 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
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 G4VProcess
void	SubtractNumberOfInteractionLengthLeft (G4double previousStepSize)
void	ClearNumberOfInteractionLengthLeft ()
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 131 of file G4OpBoundaryProcess.hh.

Constructor & Destructor Documentation

G4OpBoundaryProcess::G4OpBoundaryProcess	(	const G4String &	processName = "OpBoundary",
		G4ProcessType	type = fOptical
	)

Definition at line 103 of file G4OpBoundaryProcess.cc.

References fOpBoundary, G4cout, G4endl, G4GeometryTolerance::GetInstance(), G4VProcess::GetProcessName(), G4GeometryTolerance::GetSurfaceTolerance(), glisur, polished, G4VProcess::SetProcessSubType(), Undefined, and G4VProcess::verboseLevel.

             : G4VDiscreteProcess(processName, type)
{
        if ( verboseLevel > 0) {
           G4cout << GetProcessName() << " is created " << G4endl;
        }

        SetProcessSubType(fOpBoundary);

    theStatus = Undefined;
    theModel = glisur;
    theFinish = polished;
        theReflectivity =  1.;
        theEfficiency   =  0.;
        theTransmittance = 0.;

        prob_sl = 0.;
        prob_ss = 0.;
        prob_bs = 0.;

        PropertyPointer  = NULL;
        PropertyPointer1 = NULL;
        PropertyPointer2 = NULL;

        Material1 = NULL;
        Material2 = NULL;

        OpticalSurface = NULL;

        kCarTolerance = G4GeometryTolerance::GetInstance()
                        ->GetSurfaceTolerance();

        iTE = iTM = 0;
        thePhotonMomentum = 0.;
        Rindex1 = Rindex2 = cost1 = cost2 = sint1 = sint2 = 0.;

        idx = idy = 0;
        DichroicVector = NULL;
}

G4OpBoundaryProcess::~G4OpBoundaryProcess

(

)

Definition at line 152 of file G4OpBoundaryProcess.cc.

{}

Member Function Documentation

G4double G4OpBoundaryProcess::GetMeanFreePath ( const G4Track &  , G4double  , G4ForceCondition *  condition  )

virtual

Implements G4VDiscreteProcess.

Definition at line 1121 of file G4OpBoundaryProcess.cc.

References DBL_MAX, and Forced.

{
    *condition = Forced;

    return DBL_MAX;
}

G4OpBoundaryProcessStatus G4OpBoundaryProcess::GetStatus ( ) const

inline

Definition at line 277 of file G4OpBoundaryProcess.hh.

Referenced by WLSSteppingAction::UserSteppingAction().

{
   return theStatus;
}

G4bool G4OpBoundaryProcess::IsApplicable ( const G4ParticleDefinition &  aParticleType )

inlinevirtual

Reimplemented from G4VProcess.

Definition at line 270 of file G4OpBoundaryProcess.hh.

References G4OpticalPhoton::OpticalPhoton().

{
   return ( &aParticleType == G4OpticalPhoton::OpticalPhoton() );
}

G4VParticleChange * G4OpBoundaryProcess::PostStepDoIt ( const G4Track &  aTrack, const G4Step &  aStep  )

virtual

Reimplemented from G4VDiscreteProcess.

Definition at line 163 of file G4OpBoundaryProcess.cc.

References G4VProcess::aParticleChange, Detection, dielectric_dichroic, dielectric_dielectric, dielectric_LUT, dielectric_metal, EventMustBeAborted, fGeomBoundary, FresnelRefraction, fStopAndKill, G4cerr, G4cout, G4endl, G4Exception(), G4Track::GetDynamicParticle(), G4OpticalSurface::GetFinish(), G4ParallelWorldProcess::GetHyperStep(), G4ParallelWorldProcess::GetHypNavigatorID(), G4VPhysicalVolume::GetLogicalVolume(), G4StepPoint::GetMaterial(), G4Material::GetMaterialPropertiesTable(), G4OpticalSurface::GetModel(), G4DynamicParticle::GetMomentumDirection(), G4VPhysicalVolume::GetMotherLogical(), G4VPhysicalVolume::GetName(), G4StepPoint::GetPhysicalVolume(), G4DynamicParticle::GetPolarization(), G4StepPoint::GetPosition(), G4Step::GetPostStepPoint(), G4Step::GetPreStepPoint(), G4MaterialPropertiesTable::GetProperty(), G4Track::GetStepLength(), G4StepPoint::GetStepStatus(), G4LogicalSkinSurface::GetSurface(), G4LogicalBorderSurface::GetSurface(), G4LogicalSurface::GetSurfaceProperty(), G4DynamicParticle::GetTotalMomentum(), G4TransportationManager::GetTransportationManager(), G4SurfaceProperty::GetType(), G4Track::GetVelocity(), glisur, ground, groundbackpainted, groundfrontpainted, G4ParticleChange::Initialize(), LambertianReflection, NoRINDEX, NotAtBoundary, polished, polishedbackpainted, polishedfrontpainted, G4VDiscreteProcess::PostStepDoIt(), G4VParticleChange::ProposeLocalEnergyDeposit(), G4ParticleChange::ProposeMomentumDirection(), G4ParticleChange::ProposePolarization(), G4VParticleChange::ProposeTrackStatus(), G4ParticleChange::ProposeVelocity(), SameMaterial, StepTooSmall, Undefined, unified, CLHEP::Hep3Vector::unit(), G4PhysicsVector::Value(), and G4VProcess::verboseLevel.

{
        theStatus = Undefined;

        aParticleChange.Initialize(aTrack);
        aParticleChange.ProposeVelocity(aTrack.GetVelocity());

        // Get hyperStep from  G4ParallelWorldProcess
        //  NOTE: PostSetpDoIt of this process should be
        //        invoked after G4ParallelWorldProcess!

        const G4Step* pStep = &aStep;

        const G4Step* hStep = G4ParallelWorldProcess::GetHyperStep();
        
        if (hStep) pStep = hStep;

        G4bool isOnBoundary =
                (pStep->GetPostStepPoint()->GetStepStatus() == fGeomBoundary);

        if (isOnBoundary) {
           Material1 = pStep->GetPreStepPoint()->GetMaterial();
           Material2 = pStep->GetPostStepPoint()->GetMaterial();
        } else {
           theStatus = NotAtBoundary;
           if ( verboseLevel > 0) BoundaryProcessVerbose();
           return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
        }

        G4VPhysicalVolume* thePrePV  =
                               pStep->GetPreStepPoint() ->GetPhysicalVolume();
        G4VPhysicalVolume* thePostPV =
                               pStep->GetPostStepPoint()->GetPhysicalVolume();

        if ( verboseLevel > 0 ) {
           G4cout << " Photon at Boundary! " << G4endl;
           if (thePrePV)  G4cout << " thePrePV:  " << thePrePV->GetName()  << G4endl;
           if (thePostPV) G4cout << " thePostPV: " << thePostPV->GetName() << G4endl;
        }

    if (aTrack.GetStepLength()<=kCarTolerance/2){
            theStatus = StepTooSmall;
                if ( verboseLevel > 0) BoundaryProcessVerbose();
            return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
    }

        const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();

    thePhotonMomentum = aParticle->GetTotalMomentum();
        OldMomentum       = aParticle->GetMomentumDirection();
    OldPolarization   = aParticle->GetPolarization();

        if ( verboseLevel > 0 ) {
           G4cout << " Old Momentum Direction: " << OldMomentum     << G4endl;
           G4cout << " Old Polarization:       " << OldPolarization << G4endl;
        }

        G4ThreeVector theGlobalPoint = pStep->GetPostStepPoint()->GetPosition();

        G4bool valid;
        //  Use the new method for Exit Normal in global coordinates,
        //    which provides the normal more reliably.

        // ID of Navigator which limits step

        G4int hNavId = G4ParallelWorldProcess::GetHypNavigatorID();
        std::vector<G4Navigator*>::iterator iNav =
                G4TransportationManager::GetTransportationManager()->
                                         GetActiveNavigatorsIterator();
        theGlobalNormal =
                   (iNav[hNavId])->GetGlobalExitNormal(theGlobalPoint,&valid);

        if (valid) {
          theGlobalNormal = -theGlobalNormal;
        }
        else 
        {
          G4ExceptionDescription ed;
          ed << " G4OpBoundaryProcess/PostStepDoIt(): "
                 << " The Navigator reports that it returned an invalid normal"
                 << G4endl;
          G4Exception("G4OpBoundaryProcess::PostStepDoIt", "OpBoun01",
                      EventMustBeAborted,ed,
                      "Invalid Surface Normal - Geometry must return valid surface normal");
        }

        if (OldMomentum * theGlobalNormal > 0.0) {
#ifdef G4OPTICAL_DEBUG
           G4ExceptionDescription ed;
           ed << " G4OpBoundaryProcess/PostStepDoIt(): "
              << " theGlobalNormal points in a wrong direction. "
              << G4endl;
           ed << "    The momentum of the photon arriving at interface (oldMomentum)"
              << " must exit the volume cross in the step. " << G4endl;
           ed << "  So it MUST have dot < 0 with the normal that Exits the new volume (globalNormal)." << G4endl;
           ed << "  >> The dot product of oldMomentum and global Normal is " << OldMomentum*theGlobalNormal << G4endl;
           ed << "     Old Momentum  (during step)     = " << OldMomentum << G4endl;
           ed << "     Global Normal (Exiting New Vol) = " << theGlobalNormal << G4endl;
           ed << G4endl;
           G4Exception("G4OpBoundaryProcess::PostStepDoIt", "OpBoun02",
                       EventMustBeAborted,  // Or JustWarning to see if it happens repeatedbly on one ray
                       ed,
                      "Invalid Surface Normal - Geometry must return valid surface normal pointing in the right direction");
#else
           theGlobalNormal = -theGlobalNormal;
#endif
        }

    G4MaterialPropertiesTable* aMaterialPropertiesTable;
        G4MaterialPropertyVector* Rindex;

    aMaterialPropertiesTable = Material1->GetMaterialPropertiesTable();
        if (aMaterialPropertiesTable) {
        Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
    }
    else {
            theStatus = NoRINDEX;
                if ( verboseLevel > 0) BoundaryProcessVerbose();
                aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
        aParticleChange.ProposeTrackStatus(fStopAndKill);
        return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
    }

        if (Rindex) {
        Rindex1 = Rindex->Value(thePhotonMomentum);
    }
    else {
            theStatus = NoRINDEX;
                if ( verboseLevel > 0) BoundaryProcessVerbose();
                aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
        aParticleChange.ProposeTrackStatus(fStopAndKill);
        return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
    }

        theReflectivity =  1.;
        theEfficiency   =  0.;
        theTransmittance = 0.;

        theModel = glisur;
        theFinish = polished;

        G4SurfaceType type = dielectric_dielectric;

        Rindex = NULL;
        OpticalSurface = NULL;

        G4LogicalSurface* Surface = NULL;

        Surface = G4LogicalBorderSurface::GetSurface(thePrePV, thePostPV);

        if (Surface == NULL){
          G4bool enteredDaughter= (thePostPV->GetMotherLogical() ==
                                   thePrePV ->GetLogicalVolume());
      if(enteredDaughter){
        Surface = 
              G4LogicalSkinSurface::GetSurface(thePostPV->GetLogicalVolume());
        if(Surface == NULL)
          Surface =
                G4LogicalSkinSurface::GetSurface(thePrePV->GetLogicalVolume());
      }
      else {
        Surface =
              G4LogicalSkinSurface::GetSurface(thePrePV->GetLogicalVolume());
        if(Surface == NULL)
          Surface =
                G4LogicalSkinSurface::GetSurface(thePostPV->GetLogicalVolume());
      }
    }

    if (Surface) OpticalSurface = 
           dynamic_cast <G4OpticalSurface*> (Surface->GetSurfaceProperty());

    if (OpticalSurface) {

           type      = OpticalSurface->GetType();
       theModel  = OpticalSurface->GetModel();
       theFinish = OpticalSurface->GetFinish();

       aMaterialPropertiesTable = OpticalSurface->
                    GetMaterialPropertiesTable();

           if (aMaterialPropertiesTable) {

              if (theFinish == polishedbackpainted ||
                  theFinish == groundbackpainted ) {
                  Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
              if (Rindex) {
                     Rindex2 = Rindex->Value(thePhotonMomentum);
                  }
                  else {
             theStatus = NoRINDEX;
                     if ( verboseLevel > 0) BoundaryProcessVerbose();
                     aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
                     aParticleChange.ProposeTrackStatus(fStopAndKill);
                     return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
                  }
              }

              PropertyPointer =
                      aMaterialPropertiesTable->GetProperty("REFLECTIVITY");
              PropertyPointer1 =
                      aMaterialPropertiesTable->GetProperty("REALRINDEX");
              PropertyPointer2 =
                      aMaterialPropertiesTable->GetProperty("IMAGINARYRINDEX");

              iTE = 1;
              iTM = 1;

              if (PropertyPointer) {

                 theReflectivity =
                          PropertyPointer->Value(thePhotonMomentum);

              } else if (PropertyPointer1 && PropertyPointer2) {

                 CalculateReflectivity();

              }

              PropertyPointer =
              aMaterialPropertiesTable->GetProperty("EFFICIENCY");
              if (PropertyPointer) {
                      theEfficiency =
                      PropertyPointer->Value(thePhotonMomentum);
              }

              PropertyPointer =
              aMaterialPropertiesTable->GetProperty("TRANSMITTANCE");
              if (PropertyPointer) {
                      theTransmittance =
                      PropertyPointer->Value(thePhotonMomentum);
              }

          if ( theModel == unified ) {
            PropertyPointer =
        aMaterialPropertiesTable->GetProperty("SPECULARLOBECONSTANT");
            if (PropertyPointer) {
                         prob_sl =
             PropertyPointer->Value(thePhotonMomentum);
                } else {
                         prob_sl = 0.0;
                }

            PropertyPointer =
        aMaterialPropertiesTable->GetProperty("SPECULARSPIKECONSTANT");
            if (PropertyPointer) {
                         prob_ss =
             PropertyPointer->Value(thePhotonMomentum);
                } else {
                         prob_ss = 0.0;
                }

            PropertyPointer =
        aMaterialPropertiesTable->GetProperty("BACKSCATTERCONSTANT");
            if (PropertyPointer) {
                         prob_bs =
             PropertyPointer->Value(thePhotonMomentum);
                } else {
                         prob_bs = 0.0;
                }
          }
       }
           else if (theFinish == polishedbackpainted ||
                    theFinish == groundbackpainted ) {
                      aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
                      aParticleChange.ProposeTrackStatus(fStopAndKill);
                      return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
           }
        }

        if (type == dielectric_dielectric ) {
           if (theFinish == polished || theFinish == ground ) {

          if (Material1 == Material2){
         theStatus = SameMaterial;
                 if ( verboseLevel > 0) BoundaryProcessVerbose();
         return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
          }
              aMaterialPropertiesTable =
                     Material2->GetMaterialPropertiesTable();
              if (aMaterialPropertiesTable)
                 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
              if (Rindex) {
                 Rindex2 = Rindex->Value(thePhotonMomentum);
              }
              else {
         theStatus = NoRINDEX;
                 if ( verboseLevel > 0) BoundaryProcessVerbose();
                 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
                 aParticleChange.ProposeTrackStatus(fStopAndKill);
                 return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
          }
           }
        }

    if (type == dielectric_metal) {

      DielectricMetal();

          // Uncomment the following lines if you wish to have 
          //         Transmission instead of Absorption
          // if (theStatus == Absorption) {
          //    return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
          // }

    }
        else if (type == dielectric_LUT) {

          DielectricLUT();

        }
        else if (type == dielectric_dichroic) {

          DielectricDichroic();

        }
    else if (type == dielectric_dielectric) {

          if ( theFinish == polishedbackpainted ||
               theFinish == groundbackpainted ) {
             DielectricDielectric();
          }
      else {
             if ( !G4BooleanRand(theReflectivity) ) {
                DoAbsorption();
             }
             else {
                if ( theFinish == polishedfrontpainted ) {
                   DoReflection();
                }
                else if ( theFinish == groundfrontpainted ) {
                   theStatus = LambertianReflection;
                   DoReflection();
                }
                else {
                   DielectricDielectric();
                }
             }
          }
        }
    else {

      G4cerr << " Error: G4BoundaryProcess: illegal boundary type " << G4endl;
      return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);

    }

        NewMomentum = NewMomentum.unit();
        NewPolarization = NewPolarization.unit();

        if ( verboseLevel > 0) {
       G4cout << " New Momentum Direction: " << NewMomentum     << G4endl;
       G4cout << " New Polarization:       " << NewPolarization << G4endl;
           BoundaryProcessVerbose();
        }

    aParticleChange.ProposeMomentumDirection(NewMomentum);
    aParticleChange.ProposePolarization(NewPolarization);

        if ( theStatus == FresnelRefraction ) {
           G4MaterialPropertyVector* groupvel =
           Material2->GetMaterialPropertiesTable()->GetProperty("GROUPVEL");
           G4double finalVelocity = groupvel->Value(thePhotonMomentum);
           aParticleChange.ProposeVelocity(finalVelocity);
        }

        if ( theStatus == Detection ) InvokeSD(pStep);

        return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}

---

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

• G4OpBoundaryProcess.hh
• G4OpBoundaryProcess.cc