#include <G4ContinuousGainOfEnergy.hh>

Inheritance diagram for G4ContinuousGainOfEnergy:

Collaboration diagram for G4ContinuousGainOfEnergy:

Public Member Functions
	G4ContinuousGainOfEnergy (const G4String &name="EnergyGain", G4ProcessType type=fElectromagnetic)

virtual	~G4ContinuousGainOfEnergy ()

void	PreparePhysicsTable (const G4ParticleDefinition &)

void	BuildPhysicsTable (const G4ParticleDefinition &)

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

void	SetLossFluctuations (G4bool val)

void	SetIsIntegral (G4bool val)

void	SetDirectEnergyLossProcess (G4VEnergyLossProcess *aProcess)

void	SetDirectParticle (G4ParticleDefinition *p)

Public Member Functions inherited from G4VContinuousProcess
	G4VContinuousProcess (const G4String &, G4ProcessType aType=fNotDefined)

	G4VContinuousProcess (G4VContinuousProcess &)

virtual	~G4VContinuousProcess ()

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

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

virtual G4double	AtRestGetPhysicalInteractionLength (const G4Track &, G4ForceCondition *)

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

virtual G4VParticleChange *	PostStepDoIt (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 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 &)

Protected Member Functions
virtual G4double	GetContinuousStepLimit (const G4Track &track, G4double previousStepSize, G4double currentMinimumStep, G4double &currentSafety)

Protected Member Functions inherited from G4VContinuousProcess
void	SetGPILSelection (G4GPILSelection selection)

G4GPILSelection	GetGPILSelection () const

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

void	ClearNumberOfInteractionLengthLeft ()

Private Member Functions
void	DefineMaterial (const G4MaterialCutsCouple *couple)

void	SetDynamicMassCharge (const G4Track &track, G4double energy)

	G4ContinuousGainOfEnergy (G4ContinuousGainOfEnergy &)

G4ContinuousGainOfEnergy &	operator= (const G4ContinuousGainOfEnergy &right)

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

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 69 of file G4ContinuousGainOfEnergy.hh.

Constructor & Destructor Documentation

◆ G4ContinuousGainOfEnergy() [1/2]

G4ContinuousGainOfEnergy::G4ContinuousGainOfEnergy	(	const G4String &	name = `"EnergyGain"`,
		G4ProcessType	type = `fElectromagnetic`
	)

Definition at line 45 of file G4ContinuousGainOfEnergy.cc.

                      : G4VContinuousProcess(name, type)
 {
 
 
   linLossLimit=0.05;
   lossFluctuationArePossible =true;
   lossFluctuationFlag=true;
   is_integral = false;
   
   //Will be properly set in SetDirectParticle()
   IsIon=false;
   massRatio =1.;
   chargeSqRatio=1.;
   preStepChargeSqRatio=1.;
   
   //Some initialization
   currentCoupleIndex=9999999;
   currentCutInRange=0.;
   currentMaterialIndex=9999999;
   currentTcut=0.;
   preStepKinEnergy=0.;
   preStepRange=0.;
   preStepScaledKinEnergy=0.;
   
   currentCouple=0;  
 }

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◆ ~G4ContinuousGainOfEnergy()

G4ContinuousGainOfEnergy::~G4ContinuousGainOfEnergy ( )

virtual

Definition at line 75 of file G4ContinuousGainOfEnergy.cc.

 {
  
 }

◆ G4ContinuousGainOfEnergy() [2/2]

G4ContinuousGainOfEnergy::G4ContinuousGainOfEnergy ( G4ContinuousGainOfEnergy & )

private

Member Function Documentation

◆ AlongStepDoIt()

G4VParticleChange * G4ContinuousGainOfEnergy::AlongStepDoIt	(	const G4Track &	track,
		const G4Step &	step
	)

virtual

Reimplemented from G4VContinuousProcess.

Definition at line 115 of file G4ContinuousGainOfEnergy.cc.

 {
    
   //Caution in this method the  step length should be the true step length
   // A problem is that this is compute by the multiple scattering that does not know the energy at the end of the adjoint step. This energy is used during the 
   //Forward sim. Nothing we can really do against that at this time. This is inherent to the MS method
   //
   
   
   
   aParticleChange.Initialize(track);
   
   // Get the actual (true) Step length
   //----------------------------------
   G4double length = step.GetStepLength();
   G4double degain  = 0.0;
   
   
  
   // Compute this for weight change after continuous energy loss
   //-------------------------------------------------------------
   G4double DEDX_before = theDirectEnergyLossProcess->GetDEDX(preStepKinEnergy, currentCouple);
    
   
   
   // For the fluctuation we generate a new dynamic particle with energy =preEnergy+egain
   // and then compute the fluctuation given in  the direct case.
   //-----------------------------------------------------------------------
   G4DynamicParticle* dynParticle = new G4DynamicParticle();
   *dynParticle = *(track.GetDynamicParticle());
   dynParticle->SetDefinition(theDirectPartDef);
   G4double Tkin = dynParticle->GetKineticEnergy(); 
 
 
   size_t n=1;
   if (is_integral ) n=10;
   n=1;
   G4double dlength= length/n; 
   for (size_t i=0;i<n;i++) {
     if (Tkin != preStepKinEnergy && IsIon) {
         chargeSqRatio =  currentModel->GetChargeSquareRatio(theDirectPartDef,currentMaterial,Tkin);
         theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,chargeSqRatio); 
     
     }
   
     G4double r = theDirectEnergyLossProcess->GetRange(Tkin, currentCouple);
     if( dlength <= linLossLimit * r ) {
             degain = DEDX_before*dlength;       
     } 
     else {
             G4double x = r + dlength;
             //degain = theDirectEnergyLossProcess->GetKineticEnergy(x,currentCouple) - theDirectEnergyLossProcess->GetKineticEnergy(r,currentCouple);
         G4double E = theDirectEnergyLossProcess->GetKineticEnergy(x,currentCouple);
         if (IsIon){
             chargeSqRatio =  currentModel->GetChargeSquareRatio(theDirectPartDef,currentMaterial,E);
             theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,chargeSqRatio);
             G4double x1= theDirectEnergyLossProcess->GetRange(E, currentCouple);
 
                         // Loop checking, 07-Aug-2015, Vladimir Ivanchenko
                         G4int ii=0;
                         const G4int iimax = 100;
             while (std::abs(x-x1)>0.01*x) {
                 E = theDirectEnergyLossProcess->GetKineticEnergy(x,currentCouple);
                 chargeSqRatio =  currentModel->GetChargeSquareRatio(theDirectPartDef,currentMaterial,E);
                 theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,chargeSqRatio);
                 x1= theDirectEnergyLossProcess->GetRange(E, currentCouple);
                 ++ii;
                     if(ii >= iimax) { break; }
             } 
         }
         
         degain=E-Tkin;  
         
         
         
     }
     //G4cout<<degain<<G4endl;
     G4double tmax = currentModel->MaxSecondaryKinEnergy(dynParticle);
     tmax = std::min(tmax,currentTcut);
     
     
     dynParticle->SetKineticEnergy(Tkin+degain);
 
     // Corrections, which cannot be tabulated for ions
     //----------------------------------------
     G4double esecdep=0;//not used in most models
     currentModel->CorrectionsAlongStep(currentCouple, dynParticle, degain,esecdep, dlength); 
 
     // Sample fluctuations
     //-------------------
     
     
     G4double deltaE =0.;
     if (lossFluctuationFlag ) {
           deltaE = currentModel->GetModelOfFluctuations()->
             SampleFluctuations(currentCouple,dynParticle,tmax,dlength,degain)-degain;
     }
     
     G4double egain=degain+deltaE;
     if (egain <=0) egain=degain;
     Tkin+=egain;
     dynParticle->SetKineticEnergy(Tkin);
  }
  
  
   
 
   
   delete dynParticle;
  
   if (IsIon){
     chargeSqRatio =  currentModel->GetChargeSquareRatio(theDirectPartDef,currentMaterial,Tkin);
     theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,chargeSqRatio);
         
   }
   
   G4double DEDX_after = theDirectEnergyLossProcess->GetDEDX(Tkin, currentCouple);
   
   
   G4double weight_correction=DEDX_after/DEDX_before;
  
   
   aParticleChange.ProposeEnergy(Tkin);
 
 
   //Caution!!!
   // It is important  to select the weight of the post_step_point
   // as the current weight and not the weight of the track, as t
   // the  weight of the track is changed after having applied all
   // the along_step_do_it.
 
   // G4double new_weight=weight_correction*track.GetWeight(); //old
   G4double new_weight=weight_correction*step.GetPostStepPoint()->GetWeight();
   aParticleChange.SetParentWeightByProcess(false);
   aParticleChange.ProposeParentWeight(new_weight);
 
 
   return &aParticleChange;
 
 }

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◆ BuildPhysicsTable()

void G4ContinuousGainOfEnergy::BuildPhysicsTable ( const G4ParticleDefinition & )

virtual

Reimplemented from G4VProcess.

Definition at line 92 of file G4ContinuousGainOfEnergy.cc.

 {//theDirectEnergyLossProcess->BuildPhysicsTable(part);
 ;
 }

◆ DefineMaterial()

void G4ContinuousGainOfEnergy::DefineMaterial ( const G4MaterialCutsCouple * couple )

inlineprivate

Definition at line 173 of file G4ContinuousGainOfEnergy.hh.

 {
   if(couple != currentCouple) {
     currentCouple   = couple;
     currentMaterial = couple->GetMaterial();
     currentCoupleIndex = couple->GetIndex();
     currentMaterialIndex = currentMaterial->GetIndex();
     
     size_t idx=1;
     const std::vector<G4double>* aVec = G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(idx);
     currentTcut=(*aVec)[currentCoupleIndex];
     currentCutInRange = couple->GetProductionCuts()->GetProductionCut(theDirectPartDef->GetParticleName());
     //G4cout<<"Define Material"<<G4endl;
     //if(!meanFreePath) ResetNumberOfInteractionLengthLeft();
   }
 }

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◆ GetContinuousStepLimit()

G4double G4ContinuousGainOfEnergy::GetContinuousStepLimit	(	const G4Track &	track,
		G4double	previousStepSize,
		G4double	currentMinimumStep,
		G4double &	currentSafety
	)

protectedvirtual

Implements G4VContinuousProcess.

Definition at line 268 of file G4ContinuousGainOfEnergy.cc.

 { 
   G4double x = DBL_MAX;
   x=.1*mm;
  
  
   DefineMaterial(track.GetMaterialCutsCouple());
  
   preStepKinEnergy = track.GetKineticEnergy(); 
   preStepScaledKinEnergy = track.GetKineticEnergy()*massRatio;
   currentModel = theDirectEnergyLossProcess->SelectModelForMaterial(preStepScaledKinEnergy,currentCoupleIndex);
   G4double emax_model=currentModel->HighEnergyLimit();
   if (IsIon) {
     chargeSqRatio =  currentModel->GetChargeSquareRatio(theDirectPartDef,currentMaterial,preStepKinEnergy);
     preStepChargeSqRatio = chargeSqRatio;
     theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,preStepChargeSqRatio);
   } 
   
   
   G4double maxE =1.1*preStepKinEnergy;
   /*if (preStepKinEnergy< 0.05*MeV) maxE =2.*preStepKinEnergy;
   else if (preStepKinEnergy< 0.1*MeV) maxE =1.5*preStepKinEnergy;
   else if (preStepKinEnergy< 0.5*MeV) maxE =1.25*preStepKinEnergy;*/
    
   if (preStepKinEnergy < currentTcut) maxE = std::min(currentTcut,maxE);
  
   maxE=std::min(emax_model*1.001,maxE);
     
   preStepRange = theDirectEnergyLossProcess->GetRange(preStepKinEnergy, currentCouple);
   
   if (IsIon) {
     G4double chargeSqRatioAtEmax = currentModel->GetChargeSquareRatio(theDirectPartDef,currentMaterial,maxE);
     theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,chargeSqRatioAtEmax);
   } 
   
   G4double r1 = theDirectEnergyLossProcess->GetRange(maxE, currentCouple);
   
   if (IsIon) theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,preStepChargeSqRatio);
   
   
 
   x=r1-preStepRange;
   x=std::max(r1-preStepRange,0.001*mm);
  
   return x;
   
  
 }

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◆ operator=()

G4ContinuousGainOfEnergy& G4ContinuousGainOfEnergy::operator= ( const G4ContinuousGainOfEnergy & right )

private

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◆ PreparePhysicsTable()

void G4ContinuousGainOfEnergy::PreparePhysicsTable ( const G4ParticleDefinition & )

virtual

Reimplemented from G4VProcess.

Definition at line 82 of file G4ContinuousGainOfEnergy.cc.

 {//theDirectEnergyLossProcess->PreparePhysicsTable(part);
 
 ; 
 }

◆ SetDirectEnergyLossProcess()

void G4ContinuousGainOfEnergy::SetDirectEnergyLossProcess ( G4VEnergyLossProcess * aProcess )

inline

Definition at line 112 of file G4ContinuousGainOfEnergy.hh.

112 {theDirectEnergyLossProcess=aProcess;};

G4ContinuousGainOfEnergy::theDirectEnergyLossProcess

G4VEnergyLossProcess * theDirectEnergyLossProcess

Definition: G4ContinuousGainOfEnergy.hh:149

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◆ SetDirectParticle()

void G4ContinuousGainOfEnergy::SetDirectParticle ( G4ParticleDefinition * p )

Definition at line 99 of file G4ContinuousGainOfEnergy.cc.

 {theDirectPartDef=p;
  if (theDirectPartDef->GetParticleType()== "nucleus") {
      IsIon=true;
      massRatio = proton_mass_c2/theDirectPartDef->GetPDGMass();
      G4double q=theDirectPartDef->GetPDGCharge();
      chargeSqRatio=q*q;
     
      
  }
  
 }

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◆ SetDynamicMassCharge()

void G4ContinuousGainOfEnergy::SetDynamicMassCharge	(	const G4Track &	track,
		G4double	energy
	)

private

Definition at line 321 of file G4ContinuousGainOfEnergy.cc.

 { 
 
   G4double ChargeSqRatio= G4LossTableManager::Instance()->EmCorrections()->EffectiveChargeSquareRatio(theDirectPartDef,currentMaterial,energy); 
   if (theDirectEnergyLossProcess) theDirectEnergyLossProcess->SetDynamicMassCharge(massRatio,ChargeSqRatio);
 }

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◆ SetIsIntegral()

void G4ContinuousGainOfEnergy::SetIsIntegral ( G4bool val )

inline

Definition at line 110 of file G4ContinuousGainOfEnergy.hh.

110 {is_integral= val;}

G4ContinuousGainOfEnergy::is_integral

G4bool is_integral

Definition: G4ContinuousGainOfEnergy.hh:153

◆ SetLossFluctuations()

void G4ContinuousGainOfEnergy::SetLossFluctuations ( G4bool val )

Definition at line 258 of file G4ContinuousGainOfEnergy.cc.

 {
   if(val && !lossFluctuationArePossible) return;
   lossFluctuationFlag = val;
 }

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Member Data Documentation

◆ chargeSqRatio

G4double G4ContinuousGainOfEnergy::chargeSqRatio

private

Definition at line 159 of file G4ContinuousGainOfEnergy.hh.

◆ currentCouple

const G4MaterialCutsCouple* G4ContinuousGainOfEnergy::currentCouple

private

Definition at line 136 of file G4ContinuousGainOfEnergy.hh.

◆ currentCoupleIndex

size_t G4ContinuousGainOfEnergy::currentCoupleIndex

private

Definition at line 138 of file G4ContinuousGainOfEnergy.hh.

◆ currentCutInRange

G4double G4ContinuousGainOfEnergy::currentCutInRange

private

Definition at line 140 of file G4ContinuousGainOfEnergy.hh.

◆ currentMaterial

const G4Material* G4ContinuousGainOfEnergy::currentMaterial

private

Definition at line 135 of file G4ContinuousGainOfEnergy.hh.

◆ currentMaterialIndex

size_t G4ContinuousGainOfEnergy::currentMaterialIndex

private

Definition at line 137 of file G4ContinuousGainOfEnergy.hh.

◆ currentModel

G4VEmModel* G4ContinuousGainOfEnergy::currentModel

private

Definition at line 160 of file G4ContinuousGainOfEnergy.hh.

◆ currentTcut

G4double G4ContinuousGainOfEnergy::currentTcut

private

Definition at line 139 of file G4ContinuousGainOfEnergy.hh.

◆ is_integral

G4bool G4ContinuousGainOfEnergy::is_integral

private

Definition at line 153 of file G4ContinuousGainOfEnergy.hh.

◆ IsIon

G4bool G4ContinuousGainOfEnergy::IsIon

private

Definition at line 157 of file G4ContinuousGainOfEnergy.hh.

◆ linLossLimit

G4double G4ContinuousGainOfEnergy::linLossLimit

private

Definition at line 145 of file G4ContinuousGainOfEnergy.hh.

◆ lossFluctuationArePossible

G4bool G4ContinuousGainOfEnergy::lossFluctuationArePossible

private

Definition at line 147 of file G4ContinuousGainOfEnergy.hh.

◆ lossFluctuationFlag

G4bool G4ContinuousGainOfEnergy::lossFluctuationFlag

private

Definition at line 146 of file G4ContinuousGainOfEnergy.hh.

◆ massRatio

G4double G4ContinuousGainOfEnergy::massRatio

private

Definition at line 158 of file G4ContinuousGainOfEnergy.hh.

◆ preStepChargeSqRatio

G4double G4ContinuousGainOfEnergy::preStepChargeSqRatio

private

Definition at line 161 of file G4ContinuousGainOfEnergy.hh.

◆ preStepKinEnergy

G4double G4ContinuousGainOfEnergy::preStepKinEnergy

private

Definition at line 141 of file G4ContinuousGainOfEnergy.hh.

◆ preStepRange

G4double G4ContinuousGainOfEnergy::preStepRange

private

Definition at line 163 of file G4ContinuousGainOfEnergy.hh.

◆ preStepScaledKinEnergy

G4double G4ContinuousGainOfEnergy::preStepScaledKinEnergy

private

Definition at line 162 of file G4ContinuousGainOfEnergy.hh.

◆ theDirectEnergyLossProcess

G4VEnergyLossProcess* G4ContinuousGainOfEnergy::theDirectEnergyLossProcess

private

Definition at line 149 of file G4ContinuousGainOfEnergy.hh.

◆ theDirectPartDef

G4ParticleDefinition* G4ContinuousGainOfEnergy::theDirectPartDef

private

Definition at line 150 of file G4ContinuousGainOfEnergy.hh.

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

Private Attributes
const G4Material *	currentMaterial

const G4MaterialCutsCouple *	currentCouple

size_t	currentMaterialIndex

size_t	currentCoupleIndex

G4double	currentTcut

G4double	currentCutInRange

G4double	preStepKinEnergy

G4double	linLossLimit

G4bool	lossFluctuationFlag

G4bool	lossFluctuationArePossible

G4VEnergyLossProcess *	theDirectEnergyLossProcess

G4ParticleDefinition *	theDirectPartDef

G4bool	is_integral

G4bool	IsIon

G4double	massRatio

G4double	chargeSqRatio

G4VEmModel *	currentModel

G4double	preStepChargeSqRatio

G4double	preStepScaledKinEnergy

G4double	preStepRange

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ G4ContinuousGainOfEnergy() [1/2]

◆ ~G4ContinuousGainOfEnergy()

◆ G4ContinuousGainOfEnergy() [2/2]

Member Function Documentation

◆ AlongStepDoIt()

◆ BuildPhysicsTable()

◆ DefineMaterial()

◆ GetContinuousStepLimit()

◆ operator=()

◆ PreparePhysicsTable()

◆ SetDirectEnergyLossProcess()

◆ SetDirectParticle()

◆ SetDynamicMassCharge()

◆ SetIsIntegral()

◆ SetLossFluctuations()

Member Data Documentation

◆ chargeSqRatio

◆ currentCouple

◆ currentCoupleIndex

◆ currentCutInRange

◆ currentMaterial

◆ currentMaterialIndex

◆ currentModel

◆ currentTcut

◆ is_integral

◆ IsIon

◆ linLossLimit

◆ lossFluctuationArePossible

◆ lossFluctuationFlag

◆ massRatio

◆ preStepChargeSqRatio

◆ preStepKinEnergy

◆ preStepRange

◆ preStepScaledKinEnergy

◆ theDirectEnergyLossProcess

◆ theDirectPartDef