Concrete class that does the geometrical transport. More...

#include <G4LongLivedNeutralTransportation.h>

Inheritance diagram for G4LongLivedNeutralTransportation:

Collaboration diagram for G4LongLivedNeutralTransportation:

Public Member Functions
	G4LongLivedNeutralTransportation (G4int verbosityLevel=1)
	Constructor. More...

	~G4LongLivedNeutralTransportation ()
	Destructor.

G4double	AlongStepGetPhysicalInteractionLength (const G4Track &track, G4double previousStepSize, G4double currentMinimumStep, G4double &currentSafety, G4GPILSelection *selection)
	G4VProcess::AlongStepGetPhysicalInteractionLength() implementation,. More...

G4VParticleChange *	AlongStepDoIt (const G4Track &track, const G4Step &stepData)
	G4VProcess::AlongStepDoIt() implementation,. More...

G4VParticleChange *	PostStepDoIt (const G4Track &track, const G4Step &stepData)
	G4VProcess::PostStepDoIt() implementation,. More...

G4double	PostStepGetPhysicalInteractionLength (const G4Track &, G4double previousStepSize, G4ForceCondition *pForceCond)
	G4VProcess::PostStepGetPhysicalInteractionLength() implementation. More...

G4PropagatorInField *	GetPropagatorInField ()
	Access fFieldPropagator, the assistant class that Propagate in a Field.

void	SetPropagatorInField (G4PropagatorInField *pFieldPropagator)
	Access/set the assistant class that Propagate in a Field.

G4double	GetThresholdWarningEnergy () const
	Access fThreshold_Warning_Energy.

G4double	GetThresholdImportantEnergy () const
	Access fThreshold_Important_Energy.

G4int	GetThresholdTrials () const
	Access fThresholdTrials.

void	SetHighLooperThresholds ()
	Get/Set parameters for killing loopers: Above 'important' energy a 'looping' particle in field will NOT be abandoned, except after fThresholdTrials attempts. More...

void	SetLowLooperThresholds ()
	Shortcut method - old values (meant for HEP)

void	ReportLooperThresholds ()
	Set low thresholds - for low-E applications.

G4double	GetMaxEnergyKilled () const
	Print values of looper thresholds. More...

G4double	GetSumEnergyKilled () const
	Access fSumEnergyKilled.

void	ResetKilledStatistics (G4int report=1)
	Statistics for tracks killed (currently due to looping in field)

void	EnableShortStepOptimisation (G4bool optimise=true)
	Whether short steps < safety will avoid to call Navigator (if field=0)

G4double	AtRestGetPhysicalInteractionLength (const G4Track &, G4ForceCondition *)
	No operation in AtRestGPIL.

G4VParticleChange *	AtRestDoIt (const G4Track &, const G4Step &)
	No operation in AtRestDoIt.

void	StartTracking (G4Track *aTrack)
	Reset state for new (potentially resumed) track.

virtual void	ProcessDescription (std::ostream &outFile) const
	G4LongLivedNeutralTransportation::ProcessDescription() More...

void	PrintStatistics (std::ostream &outStr) const
	returns current logging info of the algorithm

Static Public Member Functions
static void	SetSilenceLooperWarnings (G4bool val)
	Do not warn about 'looping' particles.

static G4bool	GetSilenceLooperWarnings ()
	Do not throw exception about 'looping' particles.

Protected Member Functions
G4bool	DoesGlobalFieldExist ()
	Checks whether a field exists for the "global" field manager.

Private Attributes
G4Navigator *	fLinearNavigator
	Propagator used to transport the particle.

G4PropagatorInField *	fFieldPropagator
	Propagator used to transport the particle.

G4ThreeVector	fTransportEndPosition = G4ThreeVector(0.0, 0.0, 0.0)
	The particle's state after this Step, Store for DoIt.

G4ThreeVector	fTransportEndMomentumDir = G4ThreeVector(0.0, 0.0, 0.0)
	The particle's state after this Step, Store for DoIt.

G4double	fTransportEndKineticEnergy = 0.0
	The particle's state after this Step, Store for DoIt.

G4ThreeVector	fTransportEndSpin = G4ThreeVector(0.0, 0.0, 0.0)
	The particle's state after this Step, Store for DoIt.

G4bool	fMomentumChanged = true
	The particle's state after this Step, Store for DoIt.

G4bool	fEndGlobalTimeComputed = false
	The particle's state after this Step, Store for DoIt.

G4double	fCandidateEndGlobalTime = 0.0
	The particle's state after this Step, Store for DoIt.

G4bool	fAnyFieldExists = false
	Flag for existing fields.

G4bool	fNewTrack = true
	Flag from StartTracking.

G4bool	fFirstStepInVolume = true
	Flag first step in a geom. More...

G4bool	fLastStepInVolume = false
	Flag last step in a geom. More...

G4bool	fGeometryLimitedStep = true
	Flag to determine whether a boundary was reached.

G4bool	fFieldExertedForce = false
	During current step.

G4TouchableHandle	fCurrentTouchableHandle
	Current touchable handle.

G4ThreeVector	fPreviousSftOrigin
	Remember last safety origin.

G4double	fPreviousSafety
	Remember last safety value.

G4ParticleChangeForTransport	fParticleChange
	New ParticleChange.

G4double	fEndPointDistance
	Endpoint distance.

G4double	fThreshold_Warning_Energy = 1.0 * CLHEP::keV
	Warn above this energy about looping particle.

G4double	fThreshold_Important_Energy = 1.0 * CLHEP::MeV
	Give a few trial above this E for looping particle.

G4int	fThresholdTrials = 10
	Number of trials an important looper survives.

G4int	fAbandonUnstableTrials = 0
	Number of trials after which to abandon.

G4int	fNoLooperTrials = 0
	Counter for steps in which particle reports 'looping', if it is above 'Important' Energy.

G4double	fSumEnergyKilled = 0.0
	Sum of abandoned looping tracks energies.

G4bool	fShortStepOptimisation
	Whether to avoid calling G4Navigator for short step ( < safety) If using it, the safety estimate for endpoint will likely be smaller.

G4SafetyHelper *	fpSafetyHelper
	To pass it the safety value obtained.

Static Private Attributes
static G4bool	fUseMagneticMoment
	Flag take into account magnetic moment.

static G4bool	fUseGravity
	Flag take into account gravity.

static G4bool	fSilenceLooperWarnings = false
	Flag to Supress all 'looper' warnings.

Friends
class	G4CoupledTransportation

Detailed Description

Concrete class that does the geometrical transport.

Definition at line 38 of file G4LongLivedNeutralTransportation.h.

Constructor & Destructor Documentation

◆ G4LongLivedNeutralTransportation()

G4LongLivedNeutralTransportation ( G4int verbosityLevel = 1 )

Constructor.

Parameters

verbosityLevel

Definition at line 35 of file G4LongLivedNeutralTransportation.cc.

   : G4VProcess(G4String("LongLivedNeutralTransportation"), fTransportation),
     fFieldExertedForce(false),
     fPreviousSftOrigin(0., 0., 0.),
     fPreviousSafety(0.0),
     fEndPointDistance(-1.0),
     fShortStepOptimisation(false)   // Old default: true (=fast short steps)
 {
   SetProcessSubType(static_cast<G4int>(TRANSPORTATION));
   pParticleChange = &fParticleChange;  // Required to conform to G4VProcess
   SetVerboseLevel(verbosity);
  
   G4TransportationManager* transportMgr ;
  
   transportMgr = G4TransportationManager::GetTransportationManager() ;
  
   fLinearNavigator = transportMgr->GetNavigatorForTracking() ;
  
   fFieldPropagator = transportMgr->GetPropagatorInField() ;
  
  
  
  
   SetHighLooperThresholds();
   // Use the old defaults: Warning = 100 MeV, Important = 250 MeV, No Trials = 10;
  
   // 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.
   fAnyFieldExists = DoesGlobalFieldExist();
   //  This value must be updated using DoesAnyFieldExist() at least at the
   //    start of each Run -- for now this is at the Start of every Track. TODO
  
   static G4ThreadLocal G4TouchableHandle* pNullTouchableHandle = 0;
   if (!pNullTouchableHandle) {
     pNullTouchableHandle = new G4TouchableHandle;
   }
   fCurrentTouchableHandle = *pNullTouchableHandle;
   // Points to (G4VTouchable*) 0
  
  
 #ifdef G4VERBOSE
   if (verboseLevel > 0) {
     G4cout << " G4LongLivedNeutralTransportation constructor> set fShortStepOptimisation to ";
     if (fShortStepOptimisation)  { G4cout << "true"  << G4endl; }
     else                           { G4cout << "false" << G4endl; }
   }
 #endif
 }

Member Function Documentation

◆ AlongStepDoIt()

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

G4VProcess::AlongStepDoIt() implementation,.

Parameters

track	Propagating particle track reference
stepData	Current step reference

Definition at line 263 of file G4LongLivedNeutralTransportation.cc.

◆ AlongStepGetPhysicalInteractionLength()

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

G4VProcess::AlongStepGetPhysicalInteractionLength() implementation,.

Parameters

track	Propagating particle track reference
previousStepSize	This argument of base function is ignored
currentMinimumStep	Current minimum step size
currentSafety	Reference to current step safety
selection	Pointer for return value of GPILSelection, which is set to default value of CandidateForSelection

Returns: Next geometry step length

Definition at line 113 of file G4LongLivedNeutralTransportation.cc.

◆ GetMaxEnergyKilled()

G4double GetMaxEnergyKilled ( ) const

inline

Print values of looper thresholds.

Access fMaxEnergyKilled

◆ PostStepDoIt()

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

G4VProcess::PostStepDoIt() implementation,.

Parameters

track
stepData

Definition at line 350 of file G4LongLivedNeutralTransportation.cc.

◆ PostStepGetPhysicalInteractionLength()

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

G4VProcess::PostStepGetPhysicalInteractionLength() implementation.

Parameters

track	This argument of base function is ignored
previousStepSize	This argument of base function is ignored
pForceCond	Force condition by default

Forces the PostStepDoIt action to be called, but does not limit the step

Definition at line 338 of file G4LongLivedNeutralTransportation.cc.

◆ ProcessDescription()

void ProcessDescription ( std::ostream & outFile ) const

virtual

G4LongLivedNeutralTransportation::ProcessDescription()

@outfile Description of process

Definition at line 562 of file G4LongLivedNeutralTransportation.cc.

◆ SetHighLooperThresholds()

void SetHighLooperThresholds ( )

Get/Set parameters for killing loopers: Above 'important' energy a 'looping' particle in field will NOT be abandoned, except after fThresholdTrials attempts.

Below Warning energy, no verbosity for looping particles is issued

Definition at line 527 of file G4LongLivedNeutralTransportation.cc.

Member Data Documentation

◆ fFirstStepInVolume

G4bool fFirstStepInVolume = true

private

Flag first step in a geom.

volume

Definition at line 226 of file G4LongLivedNeutralTransportation.h.

◆ fLastStepInVolume

G4bool fLastStepInVolume = false

private

Flag last step in a geom.

volume

Definition at line 227 of file G4LongLivedNeutralTransportation.h.

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

simulation/longlivedneutral/include/G4LongLivedNeutralTransportation.h
simulation/longlivedneutral/src/G4LongLivedNeutralTransportation.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Static Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ G4LongLivedNeutralTransportation()

Member Function Documentation

◆ AlongStepDoIt()

◆ AlongStepGetPhysicalInteractionLength()

◆ GetMaxEnergyKilled()

◆ PostStepDoIt()

◆ PostStepGetPhysicalInteractionLength()

◆ ProcessDescription()

◆ SetHighLooperThresholds()

Member Data Documentation

◆ fFirstStepInVolume

◆ fLastStepInVolume