#include <G4ITTransportation.hh>

Inheritance diagram for G4ITTransportation:

Collaboration diagram for G4ITTransportation:

Classes
struct	G4ITTransportationState

Public Member Functions
	G4ITTransportation (const G4String &aName="ITTransportation", G4int verbosityLevel=0)

virtual	~G4ITTransportation ()

	G4ITTransportation (const G4ITTransportation &)

virtual void	BuildPhysicsTable (const G4ParticleDefinition &)

virtual void	ComputeStep (const G4Track &, const G4Step &, const double timeStep, double &spaceStep)

virtual void	StartTracking (G4Track *aTrack)

G4bool	IsStepLimitedByGeometry ()

virtual G4double	AtRestGetPhysicalInteractionLength (const G4Track &, G4ForceCondition *)

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

virtual G4double	AlongStepGetPhysicalInteractionLength (const G4Track &track, G4double, G4double currentMinimumStep, G4double &currentSafety, G4GPILSelection *selection)

virtual G4double	PostStepGetPhysicalInteractionLength (const G4Track &, G4double, G4ForceCondition *pForceCond)

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

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

G4PropagatorInField *	GetPropagatorInField ()

void	SetPropagatorInField (G4PropagatorInField *pFieldPropagator)

void	SetVerboseLevel (G4int verboseLevel)

G4int	GetVerboseLevel () const

G4double	GetThresholdWarningEnergy () const

G4double	GetThresholdImportantEnergy () const

G4int	GetThresholdTrials () const

void	SetThresholdWarningEnergy (G4double newEnWarn)

void	SetThresholdImportantEnergy (G4double newEnImp)

void	SetThresholdTrials (G4int newMaxTrials)

G4double	GetMaxEnergyKilled () const

G4double	GetSumEnergyKilled () const

void	ResetKilledStatistics (G4int report=1)

void	EnableShortStepOptimisation (G4bool optimise=true)

Public Member Functions inherited from G4VITProcess
	G4VITProcess (const G4String &name, G4ProcessType type=fNotDefined)

virtual	~G4VITProcess ()

	G4VITProcess (const G4VITProcess &other)

G4VITProcess &	operator= (const G4VITProcess &other)

G4int	operator== (const G4VITProcess &right) const

G4int	operator!= (const G4VITProcess &right) const

size_t	GetProcessID () const

G4shared_ptr< G4ProcessState_Lock >	GetProcessState ()

void	SetProcessState (G4shared_ptr< G4ProcessState_Lock > aProcInfo)

void	ResetProcessState ()

G4double	GetInteractionTimeLeft ()

virtual void	ResetNumberOfInteractionLengthLeft ()

G4bool	ProposesTimeStep () const

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	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 ()

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 &)

Protected Member Functions
G4bool	DoesGlobalFieldExist ()

void	SetInstantiateProcessState (G4bool flag)

G4bool	InstantiateProcessState ()

Protected Member Functions inherited from G4VITProcess
void	RetrieveProcessInfo ()

void	CreateInfo ()

template<typename T >
T *	GetState ()

virtual void	SubtractNumberOfInteractionLengthLeft (G4double previousStepSize)

virtual void	ClearInteractionTimeLeft ()

virtual void	ClearNumberOfInteractionLengthLeft ()

void	SetInstantiateProcessState (G4bool flag)

G4bool	InstantiateProcessState ()

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

void	ClearNumberOfInteractionLengthLeft ()

Protected Attributes
G4ITNavigator *	fLinearNavigator

G4PropagatorInField *	fFieldPropagator

G4ParticleChangeForTransport	fParticleChange

G4double	fThreshold_Warning_Energy

G4double	fThreshold_Important_Energy

G4int	fThresholdTrials

G4double	fUnimportant_Energy

G4double	fSumEnergyKilled

G4double	fMaxEnergyKilled

G4bool	fShortStepOptimisation

G4ITSafetyHelper *	fpSafetyHelper

G4int	fVerboseLevel

Protected Attributes inherited from G4VITProcess
G4shared_ptr< G4ProcessState >	fpState

G4bool	fProposesTimeStep

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

Additional Inherited Members
Static Public Member Functions inherited from G4VITProcess
static const size_t &	GetMaxProcessIndex ()

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

Detailed Description

Definition at line 74 of file G4ITTransportation.hh.

Constructor & Destructor Documentation

G4ITTransportation::G4ITTransportation	(	const G4String &	aName = `"ITTransportation"`,
		G4int	verbosityLevel = `0`
	)

Definition at line 96 of file G4ITTransportation.cc.

                                                                          :
     G4VITProcess(aName, fTransportation),
     fThreshold_Warning_Energy(100 * MeV),
     fThreshold_Important_Energy(250 * MeV),
     fThresholdTrials(10),
     fUnimportant_Energy(1 * MeV), // Not used
     fSumEnergyKilled(0.0),
     fMaxEnergyKilled(0.0),
     fShortStepOptimisation(false), // Old default: true (=fast short steps)
     fVerboseLevel(verbose)
 {
   pParticleChange = &fParticleChange;
   G4TransportationManager* transportMgr;
   transportMgr = G4TransportationManager::GetTransportationManager();
   G4ITTransportationManager* ITtransportMgr;
   ITtransportMgr = G4ITTransportationManager::GetTransportationManager();
   fLinearNavigator = ITtransportMgr->GetNavigatorForTracking();
   fFieldPropagator = transportMgr->GetPropagatorInField();
   fpSafetyHelper = ITtransportMgr->GetSafetyHelper(); // New
 
   // Cannot determine whether a field exists here, as it would
   //  depend on the relative order of creating the detector's
   //  field and this process. That order is not guaranted.
   // Instead later the method DoesGlobalFieldExist() is called
 
   enableAtRestDoIt = false;
   enableAlongStepDoIt = true;
   enablePostStepDoIt = true;
   SetProcessSubType(60);
   SetInstantiateProcessState(true);
   G4VITProcess::SetInstantiateProcessState(false);
   fInstantiateProcessState = true;
 
   G4VITProcess::fpState.reset(new G4ITTransportationState());
   /*
    if(fTransportationState == 0)
    {
    G4cout << "KILL in G4ITTransportation::G4ITTransportation" << G4endl;
    abort();
    }
    */
 }

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G4ITTransportation::~G4ITTransportation ( )

virtual

Definition at line 215 of file G4ITTransportation.cc.

 {
 #ifdef G4VERBOSE
   if ((fVerboseLevel > 0) && (fSumEnergyKilled > 0.0))
   {
     G4cout << " G4ITTransportation: Statistics for looping particles "
            << G4endl;
     G4cout << "   Sum of energy of loopers killed: "
            << fSumEnergyKilled << G4endl;
     G4cout << "   Max energy of loopers killed: "
            << fMaxEnergyKilled << G4endl;
   }
 #endif
 }

G4ITTransportation::G4ITTransportation ( const G4ITTransportation & right )

Definition at line 139 of file G4ITTransportation.cc.

                                                                       :
     G4VITProcess(right)
 {
   // Copy attributes
   fVerboseLevel = right.fVerboseLevel;
   fThreshold_Warning_Energy = right.fThreshold_Warning_Energy;
   fThreshold_Important_Energy = right.fThreshold_Important_Energy;
   fThresholdTrials = right.fThresholdTrials;
   fUnimportant_Energy = right.fUnimportant_Energy;
   fSumEnergyKilled = right.fSumEnergyKilled;
   fMaxEnergyKilled = right.fMaxEnergyKilled;
   fShortStepOptimisation = right.fShortStepOptimisation;
 
   // Setup Navigators
   G4TransportationManager* transportMgr;
   transportMgr = G4TransportationManager::GetTransportationManager();
   G4ITTransportationManager* ITtransportMgr;
   ITtransportMgr = G4ITTransportationManager::GetTransportationManager();
   fLinearNavigator = ITtransportMgr->GetNavigatorForTracking();
   fFieldPropagator = transportMgr->GetPropagatorInField();
   fpSafetyHelper = ITtransportMgr->GetSafetyHelper(); // New
 
   // Cannot determine whether a field exists here, as it would
   //  depend on the relative order of creating the detector's
   //  field and this process. That order is not guaranted.
   // Instead later the method DoesGlobalFieldExist() is called
 
   enableAtRestDoIt = false;
   enableAlongStepDoIt = true;
   enablePostStepDoIt = true;
 
   pParticleChange = &fParticleChange;
   SetInstantiateProcessState(true);
   G4VITProcess::SetInstantiateProcessState(false);
   fInstantiateProcessState = right.fInstantiateProcessState;
 }

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Member Function Documentation

G4VParticleChange * G4ITTransportation::AlongStepDoIt	(	const G4Track &	track,
		const G4Step &	stepData
	)

virtual

!!!!!!! A REVOIR !!!!

Implements G4VProcess.

Reimplemented in G4DNABrownianTransportation.

Definition at line 689 of file G4ITTransportation.cc.

 {
 
 #if defined (DEBUG_MEM)
   MemStat mem_first, mem_second, mem_diff;
 #endif
 
 #if defined (DEBUG_MEM)
   mem_first = MemoryUsage();
 #endif
 
   PrepareState()
   
   // G4cout << "G4ITTransportation::AlongStepDoIt" << G4endl;
   // set  pdefOpticalPhoton
   // Andrea Dotti: the following statement should be in a single line:
   // G4-MT transformation tools get confused if statement spans two lines
   // If needed contact: adotti@slac.stanford.edu
   static G4ThreadLocal G4ParticleDefinition* pdefOpticalPhoton = 0;
   if (!pdefOpticalPhoton) pdefOpticalPhoton =
       G4ParticleTable::GetParticleTable()->FindParticle("opticalphoton");
 
   static G4ThreadLocal G4int noCalls = 0;
   noCalls++;
 
   fParticleChange.Initialize(track);
 
   //  Code for specific process
   //
   fParticleChange.ProposePosition(State(fTransportEndPosition));
   fParticleChange.ProposeMomentumDirection(State(fTransportEndMomentumDir));
   fParticleChange.ProposeEnergy(State(fTransportEndKineticEnergy));
   fParticleChange.SetMomentumChanged(State(fMomentumChanged));
 
   fParticleChange.ProposePolarization(State(fTransportEndSpin));
 
   G4double deltaTime = 0.0;
 
   // Calculate  Lab Time of Flight (ONLY if field Equations used it!)
   // G4double endTime   = State(fCandidateEndGlobalTime);
   // G4double delta_time = endTime - startTime;
 
   G4double startTime = track.GetGlobalTime();
   if (State(fEndGlobalTimeComputed) == false)
   {
     // The time was not integrated .. make the best estimate possible
     //
     G4double initialVelocity = stepData.GetPreStepPoint()->GetVelocity();
     G4double stepLength = track.GetStepLength();
 
     deltaTime = 0.0; // in case initialVelocity = 0
     if (track.GetParticleDefinition() == pdefOpticalPhoton)
     {
       // For only Optical Photon, final velocity is used
       double finalVelocity = track.CalculateVelocityForOpticalPhoton();
       fParticleChange.ProposeVelocity(finalVelocity);
       deltaTime = stepLength / finalVelocity;
     }
     else if (initialVelocity > 0.0)
     {
       deltaTime = stepLength / initialVelocity;
     }
 
     State(fCandidateEndGlobalTime) = startTime + deltaTime;
   }
   else
   {
     deltaTime = State(fCandidateEndGlobalTime) - startTime;
   }
 
   fParticleChange.ProposeGlobalTime(State(fCandidateEndGlobalTime));
   fParticleChange.ProposeLocalTime(track.GetLocalTime() + deltaTime);
   /*
    // Now Correct by Lorentz factor to get delta "proper" Time
 
    G4double  restMass       = track.GetDynamicParticle()->GetMass() ;
    G4double deltaProperTime = deltaTime*( restMass/track.GetTotalEnergy() ) ;
 
    fParticleChange.ProposeProperTime(track.GetProperTime() + deltaProperTime) ;
    */
 
   fParticleChange.ProposeTrueStepLength(track.GetStepLength());
 
 
   // If the particle is caught looping or is stuck (in very difficult
   // boundaries) in a magnetic field (doing many steps)
   //   THEN this kills it ...
   //
   if (State(fParticleIsLooping))
   {
     G4double endEnergy = State(fTransportEndKineticEnergy);
 
     if ((endEnergy < fThreshold_Important_Energy) || (State(fNoLooperTrials)
         >= fThresholdTrials))
     {
       // Kill the looping particle
       //
       // G4cout << "G4ITTransportation will killed the molecule"<< G4endl;
       fParticleChange.ProposeTrackStatus(fStopAndKill);
 
       // 'Bare' statistics
       fSumEnergyKilled += endEnergy;
       if (endEnergy > fMaxEnergyKilled)
       {
         fMaxEnergyKilled = endEnergy;
       }
 
 #ifdef G4VERBOSE
       if ((fVerboseLevel > 1) || (endEnergy > fThreshold_Warning_Energy))
       {
         G4cout
             << " G4ITTransportation is killing track that is looping or stuck "
             << G4endl<< "   This track has " << track.GetKineticEnergy() / MeV
         << " MeV energy." << G4endl;
         G4cout << "   Number of trials = " << State(fNoLooperTrials)
         << "   No of calls to AlongStepDoIt = " << noCalls
         << G4endl;
       }
 #endif
       State(fNoLooperTrials) = 0;
     }
     else
     {
       State(fNoLooperTrials)++;
 #ifdef G4VERBOSE
       if ((fVerboseLevel > 2))
       {
         G4cout << "   G4ITTransportation::AlongStepDoIt(): Particle looping -  "
                << "   Number of trials = " << State(fNoLooperTrials)
                << "   No of calls to  = " << noCalls << G4endl;
       }
 #endif
     }
   }
   else
   {
     State(fNoLooperTrials)=0;
   }
 
   // Another (sometimes better way) is to use a user-limit maximum Step size
   // to alleviate this problem ..
 
   // Introduce smooth curved trajectories to particle-change
   //
   fParticleChange.SetPointerToVectorOfAuxiliaryPoints(
       fFieldPropagator->GimmeTrajectoryVectorAndForgetIt());
 
 #if defined (DEBUG_MEM)
   mem_second = MemoryUsage();
   mem_diff = mem_second-mem_first;
   G4cout << "\t || MEM || End of G4ITTransportation::AlongStepDoIt, diff is: "
       << mem_diff << G4endl;
 #endif
 
   return &fParticleChange;
 }

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G4double G4ITTransportation::AlongStepGetPhysicalInteractionLength	(	const G4Track &	track,
		G4double	,
		G4double	currentMinimumStep,
		G4double &	currentSafety,
		G4GPILSelection *	selection
	)

virtual

Implements G4VProcess.

Reimplemented in G4DNABrownianTransportation.

Definition at line 253 of file G4ITTransportation.cc.

 {
   PrepareState()
   G4double geometryStepLength(-1.0), newSafety(-1.0);
 
   State(fParticleIsLooping) = false;
   State(fEndGlobalTimeComputed) = false;
   State(fGeometryLimitedStep) = false;
 
   // Initial actions moved to  StartTrack()
   // --------------------------------------
   // Note: in case another process changes touchable handle
   //    it will be necessary to add here (for all steps)
   // State(fCurrentTouchableHandle) = track.GetTouchableHandle();
 
   // GPILSelection is set to defaule value of CandidateForSelection
   // It is a return value
   //
   *selection = CandidateForSelection;
 
   // Get initial Energy/Momentum of the track
   //
   const G4DynamicParticle* pParticle = track.GetDynamicParticle();
 //    const G4ParticleDefinition* pParticleDef   = pParticle->GetDefinition() ;
   G4ThreeVector startMomentumDir = pParticle->GetMomentumDirection();
   G4ThreeVector startPosition = track.GetPosition();
 
   // G4double   theTime        = track.GetGlobalTime() ;
 
   // The Step Point safety can be limited by other geometries and/or the
   // assumptions of any process - it's not always the geometrical safety.
   // We calculate the starting point's isotropic safety here.
   //
   G4ThreeVector OriginShift = startPosition - State(fPreviousSftOrigin);
   G4double MagSqShift = OriginShift.mag2();
   if (MagSqShift >= sqr(State(fPreviousSafety)))
   {
     currentSafety = 0.0;
   }
   else
   {
     currentSafety = State(fPreviousSafety) - std::sqrt(MagSqShift);
   }
 
   // Is the particle charged ?
   //
   G4double particleCharge = pParticle->GetCharge();
 
   // There is no need to locate the current volume. It is Done elsewhere:
   //   On track construction
   //   By the tracking, after all AlongStepDoIts, in "Relocation"
 
   // Check whether the particle have an (EM) field force exerting upon it
   //
   G4FieldManager* fieldMgr = 0;
   G4bool fieldExertsForce = false;
   if ((particleCharge != 0.0))
   {
     fieldMgr = fFieldPropagator->FindAndSetFieldManager(track.GetVolume());
     if (fieldMgr != 0)
     {
       // Message the field Manager, to configure it for this track
       fieldMgr->ConfigureForTrack(&track);
       // Moved here, in order to allow a transition
       //   from a zero-field  status (with fieldMgr->(field)0
       //   to a finite field  status
 
       // If the field manager has no field, there is no field !
       fieldExertsForce = (fieldMgr->GetDetectorField() != 0);
     }
   }
 
   // G4cout << " G4Transport:  field exerts force= " << fieldExertsForce
   //     << "  fieldMgr= " << fieldMgr << G4endl;
 
   // Choose the calculation of the transportation: Field or not
   //
   if (!fieldExertsForce)
   {
     G4double linearStepLength;
     if (fShortStepOptimisation && (currentMinimumStep <= currentSafety))
     {
       // The Step is guaranteed to be taken
       //
       geometryStepLength = currentMinimumStep;
       State(fGeometryLimitedStep) = false;
     }
     else
     {
       //  Find whether the straight path intersects a volume
       //
       // fLinearNavigator->SetNavigatorState(GetIT(track)->GetTrackingInfo()->GetNavigatorState());
       linearStepLength = fLinearNavigator->ComputeStep(startPosition,
                                                        startMomentumDir,
                                                        currentMinimumStep,
                                                        newSafety);
 
 //      G4cout << "linearStepLength : " <<  G4BestUnit(linearStepLength,"Length")
 //          << " | currentMinimumStep: " << currentMinimumStep
 //          << " | trackID: " << track.GetTrackID() << G4endl;
 
       // Remember last safety origin & value.
       //
       State(fPreviousSftOrigin) = startPosition;
       State(fPreviousSafety) = newSafety;
       
       G4TrackStateManager& trackStateMan = GetIT(track)->GetTrackingInfo()
           ->GetTrackStateManager();
       fpSafetyHelper->LoadTrackState(trackStateMan);
       // fpSafetyHelper->SetTrackState(state);
       fpSafetyHelper->SetCurrentSafety(newSafety,
                                        State(fTransportEndPosition));
       fpSafetyHelper->ResetTrackState();
       
       // The safety at the initial point has been re-calculated:
       //
       currentSafety = newSafety;
 
       State(fGeometryLimitedStep) = (linearStepLength <= currentMinimumStep);
       if (State(fGeometryLimitedStep))
       {
         // The geometry limits the Step size (an intersection was found.)
         geometryStepLength = linearStepLength;
       }
       else
       {
         // The full Step is taken.
         geometryStepLength = currentMinimumStep;
       }
     }
     State(fEndPointDistance) = geometryStepLength;
 
     // Calculate final position
     //
     State(fTransportEndPosition) = startPosition
         + geometryStepLength * startMomentumDir;
 
     // Momentum direction, energy and polarisation are unchanged by transport
     //
     State(fTransportEndMomentumDir) = startMomentumDir;
     State(fTransportEndKineticEnergy) = track.GetKineticEnergy();
     State(fTransportEndSpin) = track.GetPolarization();
     State(fParticleIsLooping) = false;
     State(fMomentumChanged) = false;
     State(fEndGlobalTimeComputed) = true;
     State(theInteractionTimeLeft) = State(fEndPointDistance)
         / track.GetVelocity();
     State(fCandidateEndGlobalTime) = State(theInteractionTimeLeft)
         + track.GetGlobalTime();
 /*
     G4cout << "track.GetVelocity() : "
            << track.GetVelocity() << G4endl;
     G4cout << "State(endpointDistance) : "
            << G4BestUnit(State(endpointDistance),"Length") << G4endl;
     G4cout << "State(theInteractionTimeLeft) : "
            << G4BestUnit(State(theInteractionTimeLeft),"Time") << G4endl;
     G4cout << "track.GetGlobalTime() : "
            << G4BestUnit(track.GetGlobalTime(),"Time") << G4endl;
 */
   }
   else //  A field exerts force
   {
 
     G4ExceptionDescription exceptionDescription;
     exceptionDescription
         << "ITTransportation does not support external fields.";
     exceptionDescription
         << " If you are dealing with a tradiational MC simulation, ";
     exceptionDescription << "please use G4Transportation.";
 
     G4Exception("G4ITTransportation::AlongStepGetPhysicalInteractionLength",
                 "NoExternalFieldSupport", FatalException, exceptionDescription);
     /*
      G4double       momentumMagnitude = pParticle->GetTotalMomentum() ;
      //        G4ThreeVector  EndUnitMomentum ;
      G4double       lengthAlongCurve ;
      G4double       restMass = pParticleDef->GetPDGMass() ;
 
      fFieldPropagator->SetChargeMomentumMass( particleCharge,    // in e+ units
      momentumMagnitude, // in Mev/c
      restMass           ) ;
 
      G4ThreeVector spin        = track.GetPolarization() ;
      G4FieldTrack  aFieldTrack = G4FieldTrack( startPosition,
      track.GetMomentumDirection(),
      0.0,
      track.GetKineticEnergy(),
      restMass,
      track.GetVelocity(),
      track.GetGlobalTime(), // Lab.
      track.GetProperTime(), // Part.
      &spin                  ) ;
      if( currentMinimumStep > 0 )
      {
      // Do the Transport in the field (non recti-linear)
      //
      lengthAlongCurve = fFieldPropagator->ComputeStep( aFieldTrack,
      currentMinimumStep,
      currentSafety,
      track.GetVolume() ) ;
      State(fGeometryLimitedStep)= lengthAlongCurve < currentMinimumStep;
      if( State(fGeometryLimitedStep) )
      {
      geometryStepLength   = lengthAlongCurve ;
      }
      else
      {
      geometryStepLength   = currentMinimumStep ;
      }
 
      // Remember last safety origin & value.
      //
      State(fPreviousSftOrigin) = startPosition ;
      State(fPreviousSafety)    = currentSafety ;
      fpSafetyHelper->SetCurrentSafety( newSafety, startPosition);
      }
      else
      {
      geometryStepLength   = lengthAlongCurve= 0.0 ;
      State(fGeometryLimitedStep) = false ;
      }
 
      // Get the End-Position and End-Momentum (Dir-ection)
      //
      State(fTransportEndPosition) = aFieldTrack.GetPosition() ;
 
      // Momentum:  Magnitude and direction can be changed too now ...
      //
      State(fMomentumChanged)         = true ;
      State(fTransportEndMomentumDir) = aFieldTrack.GetMomentumDir() ;
 
      State(fTransportEndKineticEnergy)  = aFieldTrack.GetKineticEnergy() ;
 
      if( fFieldPropagator->GetCurrentFieldManager()->DoesFieldChangeEnergy() )
      {
      // If the field can change energy, then the time must be integrated
      //    - so this should have been updated
      //
      State(fCandidateEndGlobalTime)   = aFieldTrack.GetLabTimeOfFlight();
      State(fEndGlobalTimeComputed)    = true;
 
      State(theInteractionTimeLeft) = State(fCandidateEndGlobalTime) -
                                          track.GetGlobalTime() ;
 
      // was ( State(fCandidateEndGlobalTime) != track.GetGlobalTime() );
      // a cleaner way is to have FieldTrack knowing whether time is updated.
      }
      else
      {
      // The energy should be unchanged by field transport,
      //    - so the time changed will be calculated elsewhere
      //
      State(fEndGlobalTimeComputed) = false;
 
      // Check that the integration preserved the energy
      //     -  and if not correct this!
      G4double  startEnergy= track.GetKineticEnergy();
      G4double  endEnergy= State(fTransportEndKineticEnergy);
 
      static G4int no_inexact_steps=0, no_large_ediff;
      G4double absEdiff = std::fabs(startEnergy- endEnergy);
      if( absEdiff > perMillion * endEnergy )
      {
      no_inexact_steps++;
      // Possible statistics keeping here ...
      }
      #ifdef G4VERBOSE
      if( fVerboseLevel > 1 )
      {
      if( std::fabs(startEnergy- endEnergy) > perThousand * endEnergy )
      {
      static G4int no_warnings= 0, warnModulo=1,  moduloFactor= 10;
      no_large_ediff ++;
      if( (no_large_ediff% warnModulo) == 0 )
      {
      no_warnings++;
      G4cout << "WARNING - G4Transportation::AlongStepGetPIL() "
      << "   Energy change in Step is above 1^-3 relative value. " << G4endl
      << "   Relative change in 'tracking' step = "
      << std::setw(15) << (endEnergy-startEnergy)/startEnergy << G4endl
      << "     Starting E= " << std::setw(12) << startEnergy / MeV << " MeV "
      << G4endl
      << "     Ending   E= " << std::setw(12) << endEnergy   / MeV << " MeV "
      << G4endl;
      G4cout << " Energy has been corrected -- however, review"
      << " field propagation parameters for accuracy."  << G4endl;
      if( (fVerboseLevel > 2 ) || (no_warnings<4) ||
          (no_large_ediff == warnModulo * moduloFactor) )
      {
      G4cout << " These include EpsilonStepMax(/Min) in G4FieldManager "
      << " which determine fractional error per step for integrated quantities. "
      << G4endl
      << " Note also the influence of the permitted number of integration steps."
      << G4endl;
      }
      G4cerr << "ERROR - G4Transportation::AlongStepGetPIL()" << G4endl
      << "        Bad 'endpoint'. Energy change detected"
      << " and corrected. "
      << " Has occurred already "
      << no_large_ediff << " times." << G4endl;
      if( no_large_ediff == warnModulo * moduloFactor )
      {
      warnModulo *= moduloFactor;
      }
      }
      }
      }  // end of if (fVerboseLevel)
      #endif
      // Correct the energy for fields that conserve it
      //  This - hides the integration error
      //       - but gives a better physical answer
      State(fTransportEndKineticEnergy)= track.GetKineticEnergy();
      }
 
      State(fTransportEndSpin) = aFieldTrack.GetSpin();
      State(fParticleIsLooping) = fFieldPropagator->IsParticleLooping() ;
      State(endpointDistance)   = (State(fTransportEndPosition) -
                                   startPosition).mag() ;
      // State(theInteractionTimeLeft) =
                        track.GetVelocity()/State(endpointDistance) ;
      */
   }
 
   // If we are asked to go a step length of 0, and we are on a boundary
   // then a boundary will also limit the step -> we must flag this.
   //
   if (currentMinimumStep == 0.0)
   {
     if (currentSafety == 0.0)
     {
       State(fGeometryLimitedStep) = true;
 //            G4cout << "!!!! Safety is NULL, on the Boundary !!!!!" << G4endl;
 //            G4cout << " Track position : " << track.GetPosition() /nanometer
 //                   << G4endl;
     }
   }
 
   // Update the safety starting from the end-point,
   // if it will become negative at the end-point.
   //
   if (currentSafety < State(fEndPointDistance))
   {
     // if( particleCharge == 0.0 )
     //    G4cout  << "  Avoiding call to ComputeSafety : charge = 0.0 " << G4endl;
 
     if (particleCharge != 0.0)
     {
 
       G4double endSafety = fLinearNavigator->ComputeSafety(
           State(fTransportEndPosition));
       currentSafety = endSafety;
       State(fPreviousSftOrigin) = State(fTransportEndPosition);
       State(fPreviousSafety) = currentSafety;
       
       /*
        G4VTrackStateHandle state =
        GetIT(track)->GetTrackingInfo()->GetTrackState(fpSafetyHelper);
        */
       G4TrackStateManager& trackStateMan = GetIT(track)->GetTrackingInfo()
           ->GetTrackStateManager();
       fpSafetyHelper->LoadTrackState(trackStateMan);
       // fpSafetyHelper->SetTrackState(state);
       fpSafetyHelper->SetCurrentSafety(currentSafety,
                                        State(fTransportEndPosition));
       fpSafetyHelper->ResetTrackState();
 
       // Because the Stepping Manager assumes it is from the start point,
       //  add the StepLength
       //
       currentSafety += State(fEndPointDistance);
 
 #ifdef G4DEBUG_TRANSPORT
       G4cout.precision(12);
       G4cout << "***G4Transportation::AlongStepGPIL ** " << G4endl;
       G4cout << "  Called Navigator->ComputeSafety at "
           << State(fTransportEndPosition)
           << "    and it returned safety= " << endSafety << G4endl;
       G4cout << "  Adding endpoint distance " << State(fEndPointDistance)
              << "   to obtain pseudo-safety= " << currentSafety << G4endl;
 #endif
     }
   }
 
   // fParticleChange.ProposeTrueStepLength(geometryStepLength) ;
 
 //  G4cout << "G4ITTransportation::AlongStepGetPhysicalInteractionLength = "
 //         << G4BestUnit(geometryStepLength,"Length") << G4endl;
 
   return geometryStepLength;
 }

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virtual G4VParticleChange* G4ITTransportation::AtRestDoIt	(	const G4Track &	,
		const G4Step &
	)

inlinevirtual

Implements G4VProcess.

Definition at line 114 of file G4ITTransportation.hh.

   {
     return 0;
   }

virtual G4double G4ITTransportation::AtRestGetPhysicalInteractionLength	(	const G4Track &	,
		G4ForceCondition *
	)

inlinevirtual

Implements G4VProcess.

Definition at line 107 of file G4ITTransportation.hh.

   {
     return -1.0;
   }

void G4ITTransportation::BuildPhysicsTable ( const G4ParticleDefinition & )

virtual

Reimplemented from G4VITProcess.

Reimplemented in G4DNABrownianTransportation.

Definition at line 230 of file G4ITTransportation.cc.

 {
   fpSafetyHelper->InitialiseHelper();
 }

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void G4ITTransportation::ComputeStep	(	const G4Track &	track,
		const G4Step &	,
		const double	timeStep,
		double &	spaceStep
	)

virtual

Reimplemented in G4DNABrownianTransportation.

Definition at line 648 of file G4ITTransportation.cc.

 {
   PrepareState()
   const G4DynamicParticle* pParticle = track.GetDynamicParticle();
   G4ThreeVector startMomentumDir = pParticle->GetMomentumDirection();
   G4ThreeVector startPosition = track.GetPosition();
 
   track.CalculateVelocity();
   G4double initialVelocity = track.GetVelocity();
 
   State(fGeometryLimitedStep) = false;
 
   // !!! CASE NO FIELD !!!
   State(fCandidateEndGlobalTime) = timeStep + track.GetGlobalTime();
   State(fEndGlobalTimeComputed) = true;
 
   // Choose the calculation of the transportation: Field or not
   //
   if (!State(fMomentumChanged))
   {
     //        G4cout << "Momentum has not changed" << G4endl;
     fParticleChange.ProposeVelocity(initialVelocity);
     oPhysicalStep = initialVelocity * timeStep;
 
     // Calculate final position
     //
     State(fTransportEndPosition) = startPosition
         + oPhysicalStep * startMomentumDir;
   }
 }

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G4bool G4ITTransportation::DoesGlobalFieldExist ( )

protected

Definition at line 235 of file G4ITTransportation.cc.

 {
   G4TransportationManager* transportMgr;
   transportMgr = G4TransportationManager::GetTransportationManager();
 
   // fFieldExists= transportMgr->GetFieldManager()->DoesFieldExist();
   // return fFieldExists;
   return transportMgr->GetFieldManager()->DoesFieldExist();
 }

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void G4ITTransportation::EnableShortStepOptimisation ( G4bool optimise = true )

inline

G4double G4ITTransportation::GetMaxEnergyKilled ( ) const

inline

G4PropagatorInField* G4ITTransportation::GetPropagatorInField ( )

G4double G4ITTransportation::GetSumEnergyKilled ( ) const

inline

G4double G4ITTransportation::GetThresholdImportantEnergy ( ) const

inline

G4int G4ITTransportation::GetThresholdTrials ( ) const

inline

G4double G4ITTransportation::GetThresholdWarningEnergy ( ) const

inline

G4int G4ITTransportation::GetVerboseLevel ( ) const

inline

G4bool G4ITTransportation::InstantiateProcessState ( )

inlineprotected

Definition at line 260 of file G4ITTransportation.hh.

   {
     return fInstantiateProcessState;
   }

G4bool G4ITTransportation::IsStepLimitedByGeometry ( )

inline

Definition at line 98 of file G4ITTransportation.hh.

   {
     return GetState<G4ITTransportationState>()->fGeometryLimitedStep;
   }

G4VParticleChange * G4ITTransportation::PostStepDoIt	(	const G4Track &	track,
		const G4Step &
	)

virtual

Implements G4VProcess.

Reimplemented in G4DNABrownianTransportation.

Definition at line 871 of file G4ITTransportation.cc.

 {
   //    G4cout << "G4ITTransportation::PostStepDoIt" << G4endl;
  
   PrepareState()
   G4TouchableHandle retCurrentTouchable; // The one to return
   G4bool isLastStep = false;
 
   // Initialize ParticleChange  (by setting all its members equal
   //                             to corresponding members in G4Track)
   fParticleChange.Initialize(track); // To initialise TouchableChange
 
   fParticleChange.ProposeTrackStatus(track.GetTrackStatus());
 
   // If the Step was determined by the volume boundary,
   // logically relocate the particle
 
   if (State(fGeometryLimitedStep))
   {
 
     if(fVerboseLevel)
     {
      G4cout << "Step is limited by geometry "
             <<  "track ID : " << track.GetTrackID() << G4endl;
     }
 
     // fCurrentTouchable will now become the previous touchable,
     // and what was the previous will be freed.
     // (Needed because the preStepPoint can point to the previous touchable)
 
     if ( State(fCurrentTouchableHandle)->GetVolume() == 0)
     {
       G4ExceptionDescription exceptionDescription;
       exceptionDescription << "No current touchable found ";
       G4Exception(" G4ITTransportation::PostStepDoIt", "G4ITTransportation001",
                   FatalErrorInArgument, exceptionDescription);
     }
 
     fLinearNavigator->SetGeometricallyLimitedStep();
     fLinearNavigator->LocateGlobalPointAndUpdateTouchableHandle(
         track.GetPosition(), track.GetMomentumDirection(),
         State(fCurrentTouchableHandle), true);
     // Check whether the particle is out of the world volume
     // If so it has exited and must be killed.
     //
     if ( State(fCurrentTouchableHandle)->GetVolume() == 0)
     {
     //  abort();
 #ifdef G4VERBOSE
       if (fVerboseLevel > 0)
       {
         G4cout << "Track position : " << track.GetPosition() / nanometer
                << " [nm]" << " Track ID : " << track.GetTrackID() << G4endl;
         G4cout << "G4ITTransportation will killed the track because "
             "State(fCurrentTouchableHandle)->GetVolume() == 0"<< G4endl;
       }
 #endif
       fParticleChange.ProposeTrackStatus( fStopAndKill );
     }
 
     retCurrentTouchable = State(fCurrentTouchableHandle);
 
 //        G4cout << "Current volume : " << track.GetVolume()->GetName()
 //               << " Next volume : "
 //               << (State(fCurrentTouchableHandle)->GetVolume() ?
 //    State(fCurrentTouchableHandle)->GetVolume()->GetName():"OutWorld")
 //               << " Position : " << track.GetPosition() / nanometer
 //               << " track ID : " << track.GetTrackID()
 //               << G4endl;
 
     fParticleChange.SetTouchableHandle(State(fCurrentTouchableHandle));
 
     // Update the Step flag which identifies the Last Step in a volume
     isLastStep = fLinearNavigator->ExitedMotherVolume()
         | fLinearNavigator->EnteredDaughterVolume();
 
 #ifdef G4DEBUG_TRANSPORT
     //  Checking first implementation of flagging Last Step in Volume
     G4bool exiting = fLinearNavigator->ExitedMotherVolume();
     G4bool entering = fLinearNavigator->EnteredDaughterVolume();
 
     if( ! (exiting || entering) )
     {
       G4cout << " Transport> :  Proposed isLastStep= " << isLastStep
       << " Exiting " << fLinearNavigator->ExitedMotherVolume()
       << " Entering " << fLinearNavigator->EnteredDaughterVolume()
       << " Track position : " << track.GetPosition() /nanometer << " [nm]"
       << G4endl;
       G4cout << " Track position : " << track.GetPosition() /nanometer
           << G4endl;
     }
 #endif
   }
   else // fGeometryLimitedStep  is false
   {
     // This serves only to move the Navigator's location
     //
 //    abort();
     fLinearNavigator->LocateGlobalPointWithinVolume(track.GetPosition());
 
     // The value of the track's current Touchable is retained.
     // (and it must be correct because we must use it below to
     // overwrite the (unset) one in particle change)
     //  It must be fCurrentTouchable too ??
     //
     fParticleChange.SetTouchableHandle(track.GetTouchableHandle());
     retCurrentTouchable = track.GetTouchableHandle();
 
     isLastStep = false;
 #ifdef G4DEBUG_TRANSPORT
     //  Checking first implementation of flagging Last Step in Volume
     G4cout << " Transport> Proposed isLastStep= " << isLastStep
     << " Geometry did not limit step. Position : "
     << track.GetPosition()/ nanometer << G4endl;
 #endif
   } // endif ( fGeometryLimitedStep )
 
   fParticleChange.ProposeLastStepInVolume(isLastStep);
 
   const G4VPhysicalVolume* pNewVol = retCurrentTouchable->GetVolume();
   const G4Material* pNewMaterial = 0;
   const G4VSensitiveDetector* pNewSensitiveDetector = 0;
 
   if (pNewVol != 0)
   {
     pNewMaterial = pNewVol->GetLogicalVolume()->GetMaterial();
     pNewSensitiveDetector = pNewVol->GetLogicalVolume()->GetSensitiveDetector();
   }
 
   // ( <const_cast> pNewMaterial ) ;
   // ( <const_cast> pNewSensitiveDetector) ;
 
   fParticleChange.SetMaterialInTouchable((G4Material *) pNewMaterial);
   fParticleChange.SetSensitiveDetectorInTouchable(
       (G4VSensitiveDetector *) pNewSensitiveDetector);
 
   const G4MaterialCutsCouple* pNewMaterialCutsCouple = 0;
   if (pNewVol != 0)
   {
     pNewMaterialCutsCouple =
         pNewVol->GetLogicalVolume()->GetMaterialCutsCouple();
   }
 
   if (pNewVol != 0 && pNewMaterialCutsCouple != 0
       && pNewMaterialCutsCouple->GetMaterial() != pNewMaterial)
   {
     // for parametrized volume
     //
     pNewMaterialCutsCouple = G4ProductionCutsTable::GetProductionCutsTable()
         ->GetMaterialCutsCouple(pNewMaterial,
                                 pNewMaterialCutsCouple->GetProductionCuts());
   }
   fParticleChange.SetMaterialCutsCoupleInTouchable(pNewMaterialCutsCouple);
 
   // temporarily until Get/Set Material of ParticleChange,
   // and StepPoint can be made const.
   // Set the touchable in ParticleChange
   // this must always be done because the particle change always
   // uses this value to overwrite the current touchable pointer.
   //
   fParticleChange.SetTouchableHandle(retCurrentTouchable);
 
   return &fParticleChange;
 }

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G4double G4ITTransportation::PostStepGetPhysicalInteractionLength	(	const G4Track &	,
		G4double	,
		G4ForceCondition *	pForceCond
	)

virtual

Implements G4VProcess.

Definition at line 860 of file G4ITTransportation.cc.

 {
   *pForceCond = Forced;
   return DBL_MAX; // was kInfinity ; but convention now is DBL_MAX
 }

void G4ITTransportation::ResetKilledStatistics ( G4int report = 1 )

inline

void G4ITTransportation::SetInstantiateProcessState ( G4bool flag )

inlineprotected

Definition at line 255 of file G4ITTransportation.hh.

   {
     fInstantiateProcessState = flag;
   }

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void G4ITTransportation::SetPropagatorInField ( G4PropagatorInField * pFieldPropagator )

void G4ITTransportation::SetThresholdImportantEnergy ( G4double newEnImp )

inline

void G4ITTransportation::SetThresholdTrials ( G4int newMaxTrials )

inline

void G4ITTransportation::SetThresholdWarningEnergy ( G4double newEnWarn )

inline

void G4ITTransportation::SetVerboseLevel ( G4int verboseLevel )

inline

void G4ITTransportation::StartTracking ( G4Track * aTrack )

virtual

Reimplemented from G4VITProcess.

Reimplemented in G4DNABrownianTransportation.

Definition at line 1041 of file G4ITTransportation.cc.

 {
   G4VProcess::StartTracking(track);
   if (fInstantiateProcessState)
   {
 //        G4VITProcess::fpState = new G4ITTransportationState();
     G4VITProcess::fpState.reset(new G4ITTransportationState());
     // Will set in the same time fTransportationState
   }
 
   fpSafetyHelper->NewTrackState();
   fpSafetyHelper->SaveTrackState(
       GetIT(track)->GetTrackingInfo()->GetTrackStateManager());
 
   // The actions here are those that were taken in AlongStepGPIL
   //   when track.GetCurrentStepNumber()==1
 
   // reset safety value and center
   //
   //    State(fPreviousSafety)    = 0.0 ;
   //    State(fPreviousSftOrigin) = G4ThreeVector(0.,0.,0.) ;
 
   // reset looping counter -- for motion in field
   //    State(fNoLooperTrials)= 0;
   // Must clear this state .. else it depends on last track's value
   //  --> a better solution would set this from state of suspended track TODO ?
   // Was if( aTrack->GetCurrentStepNumber()==1 ) { .. }
 
   // ChordFinder reset internal state
   //
   if (DoesGlobalFieldExist())
   {
     fFieldPropagator->ClearPropagatorState();
     // Resets all state of field propagator class (ONLY)
     // including safety values (in case of overlaps and to wipe for first track).
 
     // G4ChordFinder* chordF= fFieldPropagator->GetChordFinder();
     // if( chordF ) chordF->ResetStepEstimate();
   }
 
   // Make sure to clear the chord finders of all fields (ie managers)
   static G4ThreadLocal G4FieldManagerStore* fieldMgrStore = 0;
   if (!fieldMgrStore) fieldMgrStore = G4FieldManagerStore::GetInstance();
   fieldMgrStore->ClearAllChordFindersState();
 
   // Update the current touchable handle  (from the track's)
   //
   PrepareState()
   State(fCurrentTouchableHandle) = track->GetTouchableHandle();
 
   G4VITProcess::StartTracking(track);
 }

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Member Data Documentation

G4PropagatorInField* G4ITTransportation::fFieldPropagator

protected

Definition at line 221 of file G4ITTransportation.hh.

G4ITNavigator* G4ITTransportation::fLinearNavigator

protected

Definition at line 220 of file G4ITTransportation.hh.

G4double G4ITTransportation::fMaxEnergyKilled

protected

Definition at line 242 of file G4ITTransportation.hh.

G4ParticleChangeForTransport G4ITTransportation::fParticleChange

protected

Definition at line 227 of file G4ITTransportation.hh.

G4ITSafetyHelper* G4ITTransportation::fpSafetyHelper

protected

Definition at line 248 of file G4ITTransportation.hh.

G4bool G4ITTransportation::fShortStepOptimisation

protected

Definition at line 246 of file G4ITTransportation.hh.

G4double G4ITTransportation::fSumEnergyKilled

protected

Definition at line 241 of file G4ITTransportation.hh.

G4double G4ITTransportation::fThreshold_Important_Energy

protected

Definition at line 233 of file G4ITTransportation.hh.

G4double G4ITTransportation::fThreshold_Warning_Energy

protected

Definition at line 232 of file G4ITTransportation.hh.

G4int G4ITTransportation::fThresholdTrials

protected

Definition at line 234 of file G4ITTransportation.hh.

G4double G4ITTransportation::fUnimportant_Energy

protected

Definition at line 237 of file G4ITTransportation.hh.

G4int G4ITTransportation::fVerboseLevel

protected

Definition at line 251 of file G4ITTransportation.hh.

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

source/geant4.10.03.p02/source/processes/electromagnetic/dna/management/include/G4ITTransportation.hh
source/geant4.10.03.p02/source/processes/electromagnetic/dna/management/src/G4ITTransportation.cc

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Public Member Functions

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Detailed Description

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