G4WeightCutOffProcess Class Reference

#include <G4WeightCutOffProcess.hh>

Inheritance diagram for G4WeightCutOffProcess:

Public Member Functions
	G4WeightCutOffProcess (G4double wsurvival, G4double wlimit, G4double isource, G4VIStore *istore, const G4String &aName="WeightCutOffProcess", G4bool para=false)
virtual	~G4WeightCutOffProcess ()
void	SetParallelWorld (G4String parallelWorldName)
void	SetParallelWorld (G4VPhysicalVolume *parallelWorld)
void	StartTracking (G4Track *)
virtual G4double	PostStepGetPhysicalInteractionLength (const G4Track &aTrack, G4double previousStepSize, G4ForceCondition *condition)
virtual G4VParticleChange *	PostStepDoIt (const G4Track &, const G4Step &)
const G4String &	GetName () const
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 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	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 59 of file G4WeightCutOffProcess.hh.

Constructor & Destructor Documentation

G4WeightCutOffProcess::G4WeightCutOffProcess	(	G4double	wsurvival,
		G4double	wlimit,
		G4double	isource,
		G4VIStore *	istore,
		const G4String &	aName = "WeightCutOffProcess",
		G4bool	para = false
	)

Definition at line 55 of file G4WeightCutOffProcess.cc.

References FatalException, G4cout, G4endl, G4Exception(), G4PathFinder::GetInstance(), G4Step::GetPostStepPoint(), G4Step::GetPreStepPoint(), G4VProcess::GetProcessName(), G4TransportationManager::GetTransportationManager(), G4VProcess::pParticleChange, and G4VProcess::verboseLevel.

  : G4VProcess(aName), 
    fParticleChange(new G4ParticleChange),
    fWeightSurvival(wsurvival),
    fWeightLimit(wlimit),
    fSourceImportance(isource), 
    fIStore(istore),
    //    fGCellFinder(aGCellFinder),
    fGhostWorldName("NoParallelWorld"), fGhostWorld(0),
    fGhostNavigator(0), fNavigatorID(-1), fFieldTrack('0')
{
  if (!fParticleChange)
  {
    G4Exception("G4WeightCutOffProcess::G4WeightCutOffProcess()",
                "FatalError", FatalException,
                "Failed to allocate G4ParticleChange !");
  }

  G4VProcess::pParticleChange = fParticleChange;

  fGhostStep = new G4Step();
  fGhostPreStepPoint = fGhostStep->GetPreStepPoint();
  fGhostPostStepPoint = fGhostStep->GetPostStepPoint();

  fTransportationManager = G4TransportationManager::GetTransportationManager();
  fPathFinder = G4PathFinder::GetInstance();

  if (verboseLevel>0)
  {
    G4cout << GetProcessName() << " is created " << G4endl;
  }

  paraflag = para;

}

G4WeightCutOffProcess::~G4WeightCutOffProcess ( )

virtual

Definition at line 96 of file G4WeightCutOffProcess.cc.

{
  delete fParticleChange;
  //  delete fGhostStep;
}

Member Function Documentation

G4VParticleChange * G4WeightCutOffProcess::AlongStepDoIt ( const G4Track &  track, const G4Step &    )

virtual

Implements G4VProcess.

Definition at line 388 of file G4WeightCutOffProcess.cc.

References G4VParticleChange::Initialize(), and G4VProcess::pParticleChange.

{
  // Dummy ParticleChange ie: does nothing
  // Expecting G4Transportation to move the track
  pParticleChange->Initialize(track);
  return pParticleChange; 

  //  return 0;
}

G4double G4WeightCutOffProcess::AlongStepGetPhysicalInteractionLength ( const G4Track &  track, G4double  previousStepSize, G4double  currentMinimumStep, G4double &  proposedSafety, G4GPILSelection *  selection  )

virtual

Implements G4VProcess.

Definition at line 299 of file G4WeightCutOffProcess.cc.

References CandidateForSelection, G4Navigator::ComputeSafety(), G4PathFinder::ComputeStep(), DBL_MAX, G4ThreadLocal, G4Track::GetCurrentStepNumber(), G4Track::GetVolume(), kDoNot, kSharedOther, kSharedTransport, kUnique, NotCandidateForSelection, and G4FieldTrackUpdator::Update().

{
  if(paraflag) {
    static G4ThreadLocal G4FieldTrack *endTrack_G4MT_TLS_ = 0 ; if (!endTrack_G4MT_TLS_) endTrack_G4MT_TLS_ = new  G4FieldTrack ('0') ;  G4FieldTrack &endTrack = *endTrack_G4MT_TLS_;
    static G4ThreadLocal ELimited *eLimited_G4MT_TLS_ = 0 ; if (!eLimited_G4MT_TLS_) eLimited_G4MT_TLS_ = new  ELimited  ;  ELimited &eLimited = *eLimited_G4MT_TLS_;
    
    *selection = NotCandidateForSelection;
    G4double returnedStep = DBL_MAX;
    
    if (previousStepSize > 0.)
      { fGhostSafety -= previousStepSize; }
    //  else
    //  { fGhostSafety = -1.; }
    if (fGhostSafety < 0.) fGhostSafety = 0.0;
    
    // ------------------------------------------
    // Determination of the proposed STEP LENGTH:
    // ------------------------------------------
    if (currentMinimumStep <= fGhostSafety && currentMinimumStep > 0.)
      {
    // I have no chance to limit
    returnedStep = currentMinimumStep;
    fOnBoundary = false;
    proposedSafety = fGhostSafety - currentMinimumStep;
      }
    else // (currentMinimumStep > fGhostSafety: I may limit the Step)
      {
    G4FieldTrackUpdator::Update(&fFieldTrack,&track);
    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    // ComputeStep
    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    returnedStep
      = fPathFinder->ComputeStep(fFieldTrack,currentMinimumStep,fNavigatorID,
                     track.GetCurrentStepNumber(),fGhostSafety,eLimited,
                     endTrack,track.GetVolume());
    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    if(eLimited == kDoNot)
      {
        // Track is not on the boundary
        fOnBoundary = false;
        fGhostSafety = fGhostNavigator->ComputeSafety(endTrack.GetPosition());
      }
    else
      {
        // Track is on the boundary
        fOnBoundary = true;
        proposedSafety = fGhostSafety;
      }
    //xbug? proposedSafety = fGhostSafety;
    if(eLimited == kUnique || eLimited == kSharedOther) {
      *selection = CandidateForSelection;
    }else if (eLimited == kSharedTransport) { 
      returnedStep *= (1.0 + 1.0e-9);  
      // Expand to disable its selection in Step Manager comparison
    }
    
      }

  // ----------------------------------------------
  // Returns the fGhostSafety as the proposedSafety
  // The SteppingManager will take care of keeping
  // the smallest one.
  // ----------------------------------------------
    return returnedStep;

  } else {
    return DBL_MAX;
    //not sensible!    return -1.0;
  }

}

G4VParticleChange * G4WeightCutOffProcess::AtRestDoIt ( const G4Track &  , const G4Step &    )

virtual

Implements G4VProcess.

Definition at line 382 of file G4WeightCutOffProcess.cc.

{
  return 0;
}

G4double G4WeightCutOffProcess::AtRestGetPhysicalInteractionLength ( const G4Track &  , G4ForceCondition *    )

virtual

Implements G4VProcess.

Definition at line 375 of file G4WeightCutOffProcess.cc.

{
  return -1.0;
}

const G4String & G4WeightCutOffProcess::GetName

(

void

)

const

Definition at line 293 of file G4WeightCutOffProcess.cc.

References G4VProcess::theProcessName.

{
  return theProcessName;
}

G4VParticleChange * G4WeightCutOffProcess::PostStepDoIt ( const G4Track &  aTrack, const G4Step &  aStep  )

virtual

Implements G4VProcess.

Definition at line 190 of file G4WeightCutOffProcess.cc.

References G4PathFinder::CreateTouchableHandle(), fStopAndKill, G4UniformRand, G4VIStore::GetImportance(), G4StepPoint::GetPhysicalVolume(), G4Step::GetPostStepPoint(), G4VTouchable::GetReplicaNumber(), G4StepPoint::GetTouchable(), G4StepPoint::GetTouchableHandle(), G4Track::GetWeight(), G4ParticleChange::Initialize(), G4VParticleChange::ProposeTrackStatus(), G4VParticleChange::ProposeWeight(), and G4StepPoint::SetTouchableHandle().

{
  fParticleChange->Initialize(aTrack);

  if(paraflag) {
    fOldGhostTouchable = fGhostPostStepPoint->GetTouchableHandle();
    //xbug?    fOnBoundary = false;
    CopyStep(aStep);

    if(fOnBoundary)
      {
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Locate the point and get new touchable
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  //??  fPathFinder->Locate(step.GetPostStepPoint()->GetPosition(),
  //??                      step.GetPostStepPoint()->GetMomentumDirection());
    fNewGhostTouchable = fPathFinder->CreateTouchableHandle(fNavigatorID);
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
      }
    else
      {
    // Do I need this ??????????????????????????????????????????????????????????
    // fGhostNavigator->LocateGlobalPointWithinVolume(track.GetPosition());
    // ?????????????????????????????????????????????????????????????????????????
    
    // fPathFinder->ReLocate(track.GetPosition());
    
    // reuse the touchable
    fNewGhostTouchable = fOldGhostTouchable;
      }
    
    fGhostPreStepPoint->SetTouchableHandle(fOldGhostTouchable);
    fGhostPostStepPoint->SetTouchableHandle(fNewGhostTouchable);

  }

  if(paraflag) {
    G4GeometryCell postCell(*(fGhostPostStepPoint->GetPhysicalVolume()), 
                fGhostPostStepPoint->GetTouchable()->GetReplicaNumber());


    //  G4GeometryCell postCell = fGCellFinder.GetPostGeometryCell(aStep);
    //  G4GeometryCell postCell = fGCellFinder.GetPostGeometryCell(fGhostStep);
    G4double R = fSourceImportance;
    if (fIStore)
      {
    G4double i = fIStore->GetImportance(postCell);
    if (i>0)
      {
        R/=i;
      }
      }
    G4double w = aTrack.GetWeight();
    if (w<R*fWeightLimit)
      {
    G4double ws = fWeightSurvival*R;
    G4double p = w/(ws);
    if (G4UniformRand()<p)
      {
        fParticleChange->ProposeTrackStatus(fStopAndKill);
      }
    else
      {
        fParticleChange->ProposeWeight(ws);
      }                  
      }
  } else {

    G4GeometryCell postCell(*(aStep.GetPostStepPoint()->GetPhysicalVolume()), 
                aStep.GetPostStepPoint()->GetTouchable()->GetReplicaNumber());

    //  G4GeometryCell postCell = fGCellFinder.GetPostGeometryCell(aStep);
    //  G4GeometryCell postCell = fGCellFinder.GetPostGeometryCell(fGhostStep);
    G4double R = fSourceImportance;
    if (fIStore)
      {
    G4double i = fIStore->GetImportance(postCell);
    if (i>0)
      {
        R/=i;
      }
      }
    G4double w = aTrack.GetWeight();
    if (w<R*fWeightLimit)
      {
    G4double ws = fWeightSurvival*R;
    G4double p = w/(ws);
    if (G4UniformRand()<p)
      {
        fParticleChange->ProposeTrackStatus(fStopAndKill);
      }
    else
      {
        fParticleChange->ProposeWeight(ws);
      }                  
      }
  }

  return fParticleChange;

}

G4double G4WeightCutOffProcess::PostStepGetPhysicalInteractionLength ( const G4Track &  aTrack, G4double  previousStepSize, G4ForceCondition *  condition  )

virtual

Implements G4VProcess.

Definition at line 178 of file G4WeightCutOffProcess.cc.

References DBL_MAX, and Forced.

{
//   *condition = Forced;
//   return kInfinity;

//  *condition = StronglyForced;
  *condition = Forced;
  return DBL_MAX;
}

void G4WeightCutOffProcess::SetParallelWorld

(

G4String

parallelWorldName

)

Definition at line 109 of file G4WeightCutOffProcess.cc.

References G4TransportationManager::GetNavigator(), and G4TransportationManager::GetParallelWorld().

Referenced by G4WeightCutOffConfigurator::Configure().

{
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Get pointers of the parallel world and its navigator
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  fGhostWorldName = parallelWorldName;
  fGhostWorld = fTransportationManager->GetParallelWorld(fGhostWorldName);
  fGhostNavigator = fTransportationManager->GetNavigator(fGhostWorld);
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
}

void G4WeightCutOffProcess::SetParallelWorld

(

G4VPhysicalVolume *

parallelWorld

)

Definition at line 121 of file G4WeightCutOffProcess.cc.

References G4VPhysicalVolume::GetName(), and G4TransportationManager::GetNavigator().

{
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Get pointer of navigator
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  fGhostWorldName = parallelWorld->GetName();
  fGhostWorld = parallelWorld;
  fGhostNavigator = fTransportationManager->GetNavigator(fGhostWorld);
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
}

void G4WeightCutOffProcess::StartTracking ( G4Track *  trk )

virtual

Reimplemented from G4VProcess.

Definition at line 137 of file G4WeightCutOffProcess.cc.

References G4TransportationManager::ActivateNavigator(), G4PathFinder::CreateTouchableHandle(), FatalException, G4Exception(), G4Track::GetMomentumDirection(), G4Track::GetPosition(), G4PathFinder::PrepareNewTrack(), and G4StepPoint::SetTouchableHandle().

{
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Activate navigator and get the navigator ID
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// G4cout << " G4ParallelWorldScoringProcess::StartTracking" << G4endl;

  if(paraflag) {
    if(fGhostNavigator)
      { fNavigatorID = fTransportationManager->ActivateNavigator(fGhostNavigator); }
    else
      {
    G4Exception("G4WeightCutOffProcess::StartTracking",
            "ProcParaWorld000",FatalException,
            "G4WeightCutOffProcess is used for tracking without having a parallel world assigned");
      }
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

// G4cout << "G4ParallelWorldScoringProcess::StartTracking <<<<<<<<<<<<<<<<<< " << G4endl;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Let PathFinder initialize
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    fPathFinder->PrepareNewTrack(trk->GetPosition(),trk->GetMomentumDirection());
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Setup initial touchables for the first step
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    fOldGhostTouchable = fPathFinder->CreateTouchableHandle(fNavigatorID);
    fGhostPreStepPoint->SetTouchableHandle(fOldGhostTouchable);
    fNewGhostTouchable = fOldGhostTouchable;
    fGhostPostStepPoint->SetTouchableHandle(fNewGhostTouchable);
    
    // Initialize 
    fGhostSafety = -1.;
    fOnBoundary = false;
  }
}

---

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

• G4WeightCutOffProcess.hh
• G4WeightCutOffProcess.cc