G4SynchrotronRadiationInMat Class Reference

#include <G4SynchrotronRadiationInMat.hh>

Inheritance diagram for G4SynchrotronRadiationInMat:

Collaboration diagram for G4SynchrotronRadiationInMat:

Public Member Functions
	G4SynchrotronRadiationInMat (const G4String &processName="SynchrotronRadiation", G4ProcessType type=fElectromagnetic)
virtual	~G4SynchrotronRadiationInMat ()
G4double	GetMeanFreePath (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)
G4VParticleChange *	PostStepDoIt (const G4Track &track, const G4Step &Step)
G4double	GetPhotonEnergy (const G4Track &trackData, const G4Step &stepData)
G4double	GetRandomEnergySR (G4double, G4double)
G4double	GetProbSpectrumSRforInt (G4double)
G4double	GetIntProbSR (G4double)
G4double	GetProbSpectrumSRforEnergy (G4double)
G4double	GetEnergyProbSR (G4double)
G4double	GetIntegrandForAngleK (G4double)
G4double	GetAngleK (G4double)
G4double	GetAngleNumberAtGammaKsi (G4double)
G4bool	IsApplicable (const G4ParticleDefinition &)
void	SetRootNumber (G4int rn)
void	SetVerboseLevel (G4int v)
void	SetKsi (G4double ksi)
void	SetEta (G4double eta)
void	SetPsiGamma (G4double psg)
void	SetOrderAngleK (G4double ord)
Public Member Functions inherited from G4VDiscreteProcess
	G4VDiscreteProcess (const G4String &, G4ProcessType aType=fNotDefined)
	G4VDiscreteProcess (G4VDiscreteProcess &)
virtual	~G4VDiscreteProcess ()
virtual G4double	PostStepGetPhysicalInteractionLength (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)
virtual G4double	AlongStepGetPhysicalInteractionLength (const G4Track &, G4double, G4double, G4double &, G4GPILSelection *)
virtual G4double	AtRestGetPhysicalInteractionLength (const G4Track &, G4ForceCondition *)
virtual G4VParticleChange *	AtRestDoIt (const G4Track &, const G4Step &)
virtual G4VParticleChange *	AlongStepDoIt (const G4Track &, const G4Step &)
Public Member Functions inherited from G4VProcess
	G4VProcess (const G4String &aName="NoName", G4ProcessType aType=fNotDefined)
	G4VProcess (const G4VProcess &right)
virtual	~G4VProcess ()
G4int	operator== (const G4VProcess &right) const
G4int	operator!= (const G4VProcess &right) const
G4double	GetCurrentInteractionLength () const
void	SetPILfactor (G4double value)
G4double	GetPILfactor () const
G4double	AlongStepGPIL (const G4Track &track, G4double previousStepSize, G4double currentMinimumStep, G4double &proposedSafety, G4GPILSelection *selection)
G4double	AtRestGPIL (const G4Track &track, G4ForceCondition *condition)
G4double	PostStepGPIL (const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)
virtual void	BuildPhysicsTable (const G4ParticleDefinition &)
virtual void	PreparePhysicsTable (const G4ParticleDefinition &)
virtual G4bool	StorePhysicsTable (const G4ParticleDefinition *, const G4String &, G4bool)
virtual G4bool	RetrievePhysicsTable (const G4ParticleDefinition *, const G4String &, G4bool)
const G4String &	GetPhysicsTableFileName (const G4ParticleDefinition *, const G4String &directory, const G4String &tableName, G4bool ascii=false)
const G4String &	GetProcessName () const
G4ProcessType	GetProcessType () const
void	SetProcessType (G4ProcessType)
G4int	GetProcessSubType () const
void	SetProcessSubType (G4int)
virtual void	StartTracking (G4Track *)
virtual void	EndTracking ()
virtual void	SetProcessManager (const G4ProcessManager *)
virtual const G4ProcessManager *	GetProcessManager ()
virtual void	ResetNumberOfInteractionLengthLeft ()
G4double	GetNumberOfInteractionLengthLeft () const
G4double	GetTotalNumberOfInteractionLengthTraversed () const
G4bool	isAtRestDoItIsEnabled () const
G4bool	isAlongStepDoItIsEnabled () const
G4bool	isPostStepDoItIsEnabled () const
virtual void	DumpInfo () const
void	SetVerboseLevel (G4int value)
G4int	GetVerboseLevel () const
virtual void	SetMasterProcess (G4VProcess *masterP)
const G4VProcess *	GetMasterProcess () const
virtual void	BuildWorkerPhysicsTable (const G4ParticleDefinition &part)
virtual void	PrepareWorkerPhysicsTable (const G4ParticleDefinition &)

Static Public Member Functions
static G4double	GetLambdaConst ()
static G4double	GetEnergyConst ()
Static Public Member Functions inherited from G4VProcess
static const G4String &	GetProcessTypeName (G4ProcessType)

Private Member Functions
G4SynchrotronRadiationInMat &	operator= (const G4SynchrotronRadiationInMat &right)
	G4SynchrotronRadiationInMat (const G4SynchrotronRadiationInMat &)

Private Attributes
const G4double	LowestKineticEnergy
const G4double	HighestKineticEnergy
G4int	TotBin
G4double	CutInRange
const G4ParticleDefinition *	theGamma
const G4ParticleDefinition *	theElectron
const G4ParticleDefinition *	thePositron
const G4double *	GammaCutInKineticEnergy
const G4double *	ElectronCutInKineticEnergy
const G4double *	PositronCutInKineticEnergy
const G4double *	ParticleCutInKineticEnergy
G4double	GammaCutInKineticEnergyNow
G4double	ElectronCutInKineticEnergyNow
G4double	PositronCutInKineticEnergyNow
G4double	ParticleCutInKineticEnergyNow
G4double	fAlpha
G4int	fRootNumber
G4double	fKsi
G4double	fPsiGamma
G4double	fEta
G4double	fOrderAngleK
G4int	fVerboseLevel
G4PropagatorInField *	fFieldPropagator

Static Private Attributes
static const G4double	fLambdaConst
static const G4double	fEnergyConst
static const G4double	fIntegralProbabilityOfSR [200]

Additional Inherited Members
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 68 of file G4SynchrotronRadiationInMat.hh.

Constructor & Destructor Documentation

G4SynchrotronRadiationInMat() [1/2]

G4SynchrotronRadiationInMat::G4SynchrotronRadiationInMat	(	const G4String &	processName = "SynchrotronRadiation",
		G4ProcessType	type = fElectromagnetic
	)

Definition at line 123 of file G4SynchrotronRadiationInMat.cc.

                     :G4VDiscreteProcess (processName, type),
  LowestKineticEnergy (10.*keV),
  HighestKineticEnergy (100.*TeV),
  TotBin(200),
  theGamma (G4Gamma::Gamma() ),
  theElectron ( G4Electron::Electron() ),
  thePositron ( G4Positron::Positron() ), 
  GammaCutInKineticEnergy(0),
  ElectronCutInKineticEnergy(0),
  PositronCutInKineticEnergy(0),
  ParticleCutInKineticEnergy(0),
  fAlpha(0.0), fRootNumber(80),
  fVerboseLevel( verboseLevel )
{
  G4TransportationManager* transportMgr = G4TransportationManager::GetTransportationManager();

  fFieldPropagator = transportMgr->GetPropagatorInField();
  SetProcessSubType(fSynchrotronRadiation);
  CutInRange = GammaCutInKineticEnergyNow = ElectronCutInKineticEnergyNow = 
    PositronCutInKineticEnergyNow =  ParticleCutInKineticEnergyNow = fKsi = 
    fPsiGamma = fEta = fOrderAngleK = 0.0;
}

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~G4SynchrotronRadiationInMat()

G4SynchrotronRadiationInMat::~G4SynchrotronRadiationInMat ( )

virtual

Definition at line 152 of file G4SynchrotronRadiationInMat.cc.

{}

G4SynchrotronRadiationInMat() [2/2]

G4SynchrotronRadiationInMat::G4SynchrotronRadiationInMat ( const G4SynchrotronRadiationInMat &  )

private

Member Function Documentation

GetAngleK()

G4double G4SynchrotronRadiationInMat::GetAngleK

(

G4double

eta

)

Definition at line 637 of file G4SynchrotronRadiationInMat.cc.

{
  fEta = eta; // should be > 0. !
  G4int n;
  G4double result, a;

  a = fAlpha;        // always = 0.
  n = fRootNumber;   // around default = 80

  G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;

  result = integral.Laguerre(this, 
           &G4SynchrotronRadiationInMat::GetIntegrandForAngleK, a, n);

  return result;
}

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GetAngleNumberAtGammaKsi()

G4double G4SynchrotronRadiationInMat::GetAngleNumberAtGammaKsi

(

G4double

gpsi

)

Definition at line 658 of file G4SynchrotronRadiationInMat.cc.

{
  G4double result, funK, funK2, gpsi2 = gpsi*gpsi;

  fPsiGamma    = gpsi;
  fEta         = 0.5*fKsi*(1 + gpsi2)*std::sqrt(1 + gpsi2);
 
  fOrderAngleK = 1./3.;
  funK         = GetAngleK(fEta); 
  funK2        = funK*funK;

  result       = gpsi2*funK2/(1 + gpsi2);

  fOrderAngleK = 2./3.;
  funK         = GetAngleK(fEta); 
  funK2        = funK*funK;

  result      += funK2;
  result      *= (1 + gpsi2)*fKsi;
     
  return result;
}

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GetEnergyConst()

static G4double G4SynchrotronRadiationInMat::GetEnergyConst ( )

inlinestatic

Definition at line 110 of file G4SynchrotronRadiationInMat.hh.

{ return fEnergyConst; };

GetEnergyProbSR()

G4double G4SynchrotronRadiationInMat::GetEnergyProbSR

(

G4double

ksi

)

Definition at line 600 of file G4SynchrotronRadiationInMat.cc.

{
  if (ksi <= 0.) return 1.0;
  fKsi = ksi; // should be > 0. !
  G4int n;
  G4double result, a;

  a = fAlpha;        // always = 0.
  n = fRootNumber;   // around default = 80

  G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;

  result = integral.Laguerre(this, 
           &G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy, a, n);

  result *= 9.*std::sqrt(3.)*ksi/8./pi;

  return result;
}

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GetIntegrandForAngleK()

G4double G4SynchrotronRadiationInMat::GetIntegrandForAngleK

(

G4double

t

)

Definition at line 624 of file G4SynchrotronRadiationInMat.cc.

{
  G4double result, hypCos=std::cosh(t);
  
  result  = std::cosh(fOrderAngleK*t)*std::exp(t - fEta*hypCos); // fEta > 0. !
  result /= hypCos;
  return result;
}

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GetIntProbSR()

G4double G4SynchrotronRadiationInMat::GetIntProbSR

(

G4double

ksi

)

Definition at line 561 of file G4SynchrotronRadiationInMat.cc.

{
  if (ksi <= 0.) return 1.0;
  fKsi = ksi; // should be > 0. !
  G4int n;
  G4double result, a;

  a = fAlpha;        // always = 0.
  n = fRootNumber;   // around default = 80

  G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;

  result = integral.Laguerre(this, 
           &G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt, a, n);

  result *= 3./5./pi;

  return result;
}

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GetLambdaConst()

static G4double G4SynchrotronRadiationInMat::GetLambdaConst ( )

inlinestatic

Definition at line 109 of file G4SynchrotronRadiationInMat.hh.

{ return fLambdaConst; };

GetMeanFreePath()

G4double G4SynchrotronRadiationInMat::GetMeanFreePath ( const G4Track &  track, G4double  previousStepSize, G4ForceCondition *  condition  )

virtual

Implements G4VDiscreteProcess.

Definition at line 174 of file G4SynchrotronRadiationInMat.cc.

{
  // gives the MeanFreePath in GEANT4 internal units
  G4double MeanFreePath;

  const G4DynamicParticle* aDynamicParticle = trackData.GetDynamicParticle();
  // G4Material* aMaterial = trackData.GetMaterial();

  //G4bool isOutRange ;
 
  *condition = NotForced ;

  G4double gamma = aDynamicParticle->GetTotalEnergy()/
                   aDynamicParticle->GetMass();

  G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();

  G4double KineticEnergy = aDynamicParticle->GetKineticEnergy();

  if ( KineticEnergy <  LowestKineticEnergy || gamma < 1.0e3 )  MeanFreePath = DBL_MAX; 
  else
  {

    G4ThreeVector  FieldValue;
    const G4Field*   pField = 0;

    G4FieldManager* fieldMgr=0;
    G4bool          fieldExertsForce = false;

    if( (particleCharge != 0.0) )
    {
      fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );

      if ( fieldMgr != 0 ) 
      {
        // If the field manager has no field, there is no field !

        fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
      }
    }
    if ( fieldExertsForce )
    {  
      pField = fieldMgr->GetDetectorField() ;
      G4ThreeVector  globPosition = trackData.GetPosition();

      G4double  globPosVec[4], FieldValueVec[6];

      globPosVec[0] = globPosition.x();
      globPosVec[1] = globPosition.y();
      globPosVec[2] = globPosition.z();
      globPosVec[3] = trackData.GetGlobalTime();

      pField->GetFieldValue( globPosVec, FieldValueVec );

      FieldValue = G4ThreeVector( FieldValueVec[0], 
                                   FieldValueVec[1], 
                                   FieldValueVec[2]   );

       

      G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection(); 
      G4ThreeVector unitMcrossB  = FieldValue.cross(unitMomentum) ;
      G4double perpB             = unitMcrossB.mag() ;
      G4double beta              = aDynamicParticle->GetTotalMomentum()/
                                   (aDynamicParticle->GetTotalEnergy()    );

      if( perpB > 0.0 ) MeanFreePath = fLambdaConst*beta/perpB;
      else              MeanFreePath = DBL_MAX;       
    }
    else  MeanFreePath = DBL_MAX;    
  }
  if(fVerboseLevel > 0)
  {
    G4cout<<"G4SynchrotronRadiationInMat::MeanFreePath = "<<MeanFreePath/m<<" m"<<G4endl;
  }
  return MeanFreePath; 
} 

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GetPhotonEnergy()

G4double G4SynchrotronRadiationInMat::GetPhotonEnergy	(	const G4Track &	trackData,
		const G4Step &	stepData
	)

Definition at line 422 of file G4SynchrotronRadiationInMat.cc.

{
  G4int i ;
  G4double energyOfSR = -1.0 ;
  //G4Material* aMaterial=trackData.GetMaterial() ;

  const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();

  G4double gamma = aDynamicParticle->GetTotalEnergy()/
                   (aDynamicParticle->GetMass()              ) ;

  G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();

  G4ThreeVector  FieldValue;
  const G4Field*   pField = 0 ;

  G4FieldManager* fieldMgr=0;
  G4bool          fieldExertsForce = false;

  if( (particleCharge != 0.0) )
  {
    fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
    if ( fieldMgr != 0 ) 
    {
      // If the field manager has no field, there is no field !

      fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
    }
  }
  if ( fieldExertsForce )
  {  
    pField = fieldMgr->GetDetectorField();
    G4ThreeVector  globPosition = trackData.GetPosition();
    G4double  globPosVec[3], FieldValueVec[3];

    globPosVec[0] = globPosition.x();
    globPosVec[1] = globPosition.y();
    globPosVec[2] = globPosition.z();

    pField->GetFieldValue( globPosVec, FieldValueVec );
    FieldValue = G4ThreeVector( FieldValueVec[0], 
                                   FieldValueVec[1], 
                                   FieldValueVec[2]   );
       
    G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection(); 
    G4ThreeVector unitMcrossB  = FieldValue.cross(unitMomentum) ;
    G4double perpB             = unitMcrossB.mag();
    if( perpB > 0.0 )
    {
      // M-C of synchrotron photon energy

      G4double random = G4UniformRand() ;
      for(i=0;i<200;i++)
      {
        if(random >= fIntegralProbabilityOfSR[i]) break ;
      }
      energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;

      // check against insufficient energy

      if(energyOfSR <= 0.0)
      {
        return -1.0 ;
      }
      //G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
      //G4ParticleMomentum 
      //particleDirection = aDynamicParticle->GetMomentumDirection();

      // Gamma production cut in this material
      //G4double 
      //gammaEnergyCut = (G4Gamma::GetCutsInEnergy())[aMaterial->GetIndex()];

      // SR photon has energy more than the current material cut
      // M-C of its direction
      
      //G4double Teta = G4UniformRand()/gamma ;    // Very roughly

      //G4double Phi  = twopi * G4UniformRand() ;
    }       
    else
    {
      return -1.0 ;
    }
  }     
  return energyOfSR ;
}

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GetProbSpectrumSRforEnergy()

G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy

(

G4double

t

)

Definition at line 585 of file G4SynchrotronRadiationInMat.cc.

{
  G4double result, hypCos=std::cosh(t);
  
  result = std::cosh(5.*t/3.)*std::exp(t - fKsi*hypCos); // fKsi > 0. !
  result /= hypCos;
  return result;
}

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GetProbSpectrumSRforInt()

G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt

(

G4double

t

)

Definition at line 545 of file G4SynchrotronRadiationInMat.cc.

{
  G4double result, hypCos2, hypCos=std::cosh(t);

  hypCos2 = hypCos*hypCos;  
  result = std::cosh(5.*t/3.)*std::exp(t-fKsi*hypCos); // fKsi > 0. !
  result /= hypCos2;
  return result;
}

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GetRandomEnergySR()

G4double G4SynchrotronRadiationInMat::GetRandomEnergySR	(	G4double	gamma,
		G4double	perpB
	)

Definition at line 515 of file G4SynchrotronRadiationInMat.cc.

{
  G4int i, iMax;
  G4double energySR, random, position;

  iMax = 200;
  random = G4UniformRand();

  for( i = 0; i < iMax; i++ )
  {
    if( random >= fIntegralProbabilityOfSR[i] ) break;
  }
  if(i <= 0 )        position = G4UniformRand(); // 0.
  else if( i>= iMax) position = G4double(iMax);
  else position = i + G4UniformRand(); // -1
  // 
  // it was in initial implementation:
  //       energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;

  energySR = 0.0001*position*position*fEnergyConst*gamma*gamma*perpB;

  if( energySR  < 0. ) energySR = 0.;

  return energySR;
}

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IsApplicable()

G4bool G4SynchrotronRadiationInMat::IsApplicable ( const G4ParticleDefinition &  particle )

virtual

Reimplemented from G4VProcess.

Definition at line 157 of file G4SynchrotronRadiationInMat.cc.

{

  return ( ( &particle == (const G4ParticleDefinition *)theElectron ) ||
       ( &particle == (const G4ParticleDefinition *)thePositron )    );

}

operator=()

G4SynchrotronRadiationInMat& G4SynchrotronRadiationInMat::operator= ( const G4SynchrotronRadiationInMat &  right )

private

PostStepDoIt()

G4VParticleChange * G4SynchrotronRadiationInMat::PostStepDoIt ( const G4Track &  track, const G4Step &  Step  )

virtual

Reimplemented from G4VDiscreteProcess.

Definition at line 259 of file G4SynchrotronRadiationInMat.cc.

{
  aParticleChange.Initialize(trackData);

  const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();

  G4double gamma = aDynamicParticle->GetTotalEnergy()/
                   (aDynamicParticle->GetMass()              );

  if(gamma <= 1.0e3 ) 
  {
    return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
  }
  G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();

  G4ThreeVector  FieldValue;
  const G4Field*   pField = 0 ;

  G4FieldManager* fieldMgr=0;
  G4bool          fieldExertsForce = false;

  if( (particleCharge != 0.0) )
  {
    fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
    if ( fieldMgr != 0 ) 
    {
      // If the field manager has no field, there is no field !

      fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
    }
  }
  if ( fieldExertsForce )
  {
    pField = fieldMgr->GetDetectorField() ;
    G4ThreeVector  globPosition = trackData.GetPosition() ;
    G4double  globPosVec[4], FieldValueVec[6] ;
    globPosVec[0] = globPosition.x() ;
    globPosVec[1] = globPosition.y() ;
    globPosVec[2] = globPosition.z() ;
    globPosVec[3] = trackData.GetGlobalTime();

    pField->GetFieldValue( globPosVec, FieldValueVec ) ;
    FieldValue = G4ThreeVector( FieldValueVec[0], 
                                   FieldValueVec[1], 
                                   FieldValueVec[2]   );
       
    G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection(); 
    G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum);
    G4double perpB = unitMcrossB.mag() ;
    if(perpB > 0.0)
    {
      // M-C of synchrotron photon energy

      G4double energyOfSR = GetRandomEnergySR(gamma,perpB);

      if(fVerboseLevel > 0)
      {
        G4cout<<"SR photon energy = "<<energyOfSR/keV<<" keV"<<G4endl;
      }
      // check against insufficient energy

      if( energyOfSR <= 0.0 )
      {
        return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
      }
      G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
      G4ParticleMomentum 
      particleDirection = aDynamicParticle->GetMomentumDirection();

      // M-C of its direction, simplified dipole busted approach
      
      // G4double Teta = G4UniformRand()/gamma ;    // Very roughly

      G4double cosTheta, sinTheta, fcos, beta;

  do
  { 
    cosTheta = 1. - 2.*G4UniformRand();
    fcos     = (1 + cosTheta*cosTheta)*0.5;
  }
  // Loop checking, 07-Aug-2015, Vladimir Ivanchenko
  while( fcos < G4UniformRand() );

  beta = std::sqrt(1. - 1./(gamma*gamma));

  cosTheta = (cosTheta + beta)/(1. + beta*cosTheta);

  if( cosTheta >  1. ) cosTheta =  1.;
  if( cosTheta < -1. ) cosTheta = -1.;

  sinTheta = std::sqrt(1. - cosTheta*cosTheta );

      G4double Phi  = twopi * G4UniformRand() ;

      G4double dirx = sinTheta*std::cos(Phi) , 
               diry = sinTheta*std::sin(Phi) , 
               dirz = cosTheta;

      G4ThreeVector gammaDirection ( dirx, diry, dirz);
      gammaDirection.rotateUz(particleDirection);   
 
      // polarization of new gamma

      // G4double sx =  std::cos(Teta)*std::cos(Phi);
      // G4double sy =  std::cos(Teta)*std::sin(Phi);
      // G4double sz = -std::sin(Teta);

      G4ThreeVector gammaPolarization = FieldValue.cross(gammaDirection);
      gammaPolarization = gammaPolarization.unit();

      // (sx, sy, sz);
      // gammaPolarization.rotateUz(particleDirection);

      // create G4DynamicParticle object for the SR photon
 
      G4DynamicParticle* aGamma= new G4DynamicParticle ( G4Gamma::Gamma(),
                                                         gammaDirection, 
                                                         energyOfSR      );
      aGamma->SetPolarization( gammaPolarization.x(),
                               gammaPolarization.y(),
                               gammaPolarization.z() );


      aParticleChange.SetNumberOfSecondaries(1);
      aParticleChange.AddSecondary(aGamma); 

      // Update the incident particle 
   
      G4double newKinEnergy = kineticEnergy - energyOfSR ;
      
      if (newKinEnergy > 0.)
      {
        aParticleChange.ProposeMomentumDirection( particleDirection );
        aParticleChange.ProposeEnergy( newKinEnergy );
        aParticleChange.ProposeLocalEnergyDeposit (0.); 
      } 
      else
      { 
        aParticleChange.ProposeEnergy( 0. );
        aParticleChange.ProposeLocalEnergyDeposit (0.);
        G4double charge = aDynamicParticle->GetDefinition()->GetPDGCharge();   
        if (charge<0.)
        {
           aParticleChange.ProposeTrackStatus(fStopAndKill) ;
    }
        else      
        {
          aParticleChange.ProposeTrackStatus(fStopButAlive) ;
    }
      } 
    }       
    else
    {
      return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
    }
  }     
  return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
}

Here is the call graph for this function:

SetEta()

void G4SynchrotronRadiationInMat::SetEta ( G4double  eta )

inline

Definition at line 115 of file G4SynchrotronRadiationInMat.hh.

{ fEta = eta; };

SetKsi()

void G4SynchrotronRadiationInMat::SetKsi ( G4double  ksi )

inline

Definition at line 114 of file G4SynchrotronRadiationInMat.hh.

{ fKsi = ksi; };

SetOrderAngleK()

void G4SynchrotronRadiationInMat::SetOrderAngleK ( G4double  ord )

inline

Definition at line 117 of file G4SynchrotronRadiationInMat.hh.

{ fOrderAngleK = ord; }; // should be 1/3 or 2/3

SetPsiGamma()

void G4SynchrotronRadiationInMat::SetPsiGamma ( G4double  psg )

inline

Definition at line 116 of file G4SynchrotronRadiationInMat.hh.

{ fPsiGamma = psg; };

SetRootNumber()

void G4SynchrotronRadiationInMat::SetRootNumber ( G4int  rn )

inline

Definition at line 112 of file G4SynchrotronRadiationInMat.hh.

{ fRootNumber = rn; };

SetVerboseLevel()

void G4SynchrotronRadiationInMat::SetVerboseLevel ( G4int  v )

inline

Definition at line 113 of file G4SynchrotronRadiationInMat.hh.

{ fVerboseLevel = v; };

Member Data Documentation

CutInRange

G4double G4SynchrotronRadiationInMat::CutInRange

private

Definition at line 135 of file G4SynchrotronRadiationInMat.hh.

ElectronCutInKineticEnergy

const G4double* G4SynchrotronRadiationInMat::ElectronCutInKineticEnergy

private

Definition at line 142 of file G4SynchrotronRadiationInMat.hh.

ElectronCutInKineticEnergyNow

G4double G4SynchrotronRadiationInMat::ElectronCutInKineticEnergyNow

private

Definition at line 148 of file G4SynchrotronRadiationInMat.hh.

fAlpha

G4double G4SynchrotronRadiationInMat::fAlpha

private

Definition at line 152 of file G4SynchrotronRadiationInMat.hh.

fEnergyConst

const G4double G4SynchrotronRadiationInMat::fEnergyConst

staticprivate

Initial value:

= 1.5*c_light*c_light*eplus*hbar_Planck/
                                       electron_mass_c2

Definition at line 123 of file G4SynchrotronRadiationInMat.hh.

fEta

G4double G4SynchrotronRadiationInMat::fEta

private

Definition at line 156 of file G4SynchrotronRadiationInMat.hh.

fFieldPropagator

G4PropagatorInField* G4SynchrotronRadiationInMat::fFieldPropagator

private

Definition at line 161 of file G4SynchrotronRadiationInMat.hh.

fIntegralProbabilityOfSR

const G4double G4SynchrotronRadiationInMat::fIntegralProbabilityOfSR

staticprivate

Definition at line 125 of file G4SynchrotronRadiationInMat.hh.

fKsi

G4double G4SynchrotronRadiationInMat::fKsi

private

Definition at line 154 of file G4SynchrotronRadiationInMat.hh.

fLambdaConst

const G4double G4SynchrotronRadiationInMat::fLambdaConst

staticprivate

Initial value:

= std::sqrt(3.0)*electron_mass_c2/
                                       (2.5*fine_structure_const*eplus*c_light)

Definition at line 117 of file G4SynchrotronRadiationInMat.hh.

fOrderAngleK

G4double G4SynchrotronRadiationInMat::fOrderAngleK

private

Definition at line 157 of file G4SynchrotronRadiationInMat.hh.

fPsiGamma

G4double G4SynchrotronRadiationInMat::fPsiGamma

private

Definition at line 155 of file G4SynchrotronRadiationInMat.hh.

fRootNumber

G4int G4SynchrotronRadiationInMat::fRootNumber

private

Definition at line 153 of file G4SynchrotronRadiationInMat.hh.

fVerboseLevel

G4int G4SynchrotronRadiationInMat::fVerboseLevel

private

Definition at line 160 of file G4SynchrotronRadiationInMat.hh.

GammaCutInKineticEnergy

const G4double* G4SynchrotronRadiationInMat::GammaCutInKineticEnergy

private

Definition at line 141 of file G4SynchrotronRadiationInMat.hh.

GammaCutInKineticEnergyNow

G4double G4SynchrotronRadiationInMat::GammaCutInKineticEnergyNow

private

Definition at line 147 of file G4SynchrotronRadiationInMat.hh.

HighestKineticEnergy

const G4double G4SynchrotronRadiationInMat::HighestKineticEnergy

private

Definition at line 131 of file G4SynchrotronRadiationInMat.hh.

LowestKineticEnergy

const G4double G4SynchrotronRadiationInMat::LowestKineticEnergy

private

Definition at line 128 of file G4SynchrotronRadiationInMat.hh.

ParticleCutInKineticEnergy

const G4double* G4SynchrotronRadiationInMat::ParticleCutInKineticEnergy

private

Definition at line 144 of file G4SynchrotronRadiationInMat.hh.

ParticleCutInKineticEnergyNow

G4double G4SynchrotronRadiationInMat::ParticleCutInKineticEnergyNow

private

Definition at line 150 of file G4SynchrotronRadiationInMat.hh.

PositronCutInKineticEnergy

const G4double* G4SynchrotronRadiationInMat::PositronCutInKineticEnergy

private

Definition at line 143 of file G4SynchrotronRadiationInMat.hh.

PositronCutInKineticEnergyNow

G4double G4SynchrotronRadiationInMat::PositronCutInKineticEnergyNow

private

Definition at line 149 of file G4SynchrotronRadiationInMat.hh.

theElectron

const G4ParticleDefinition* G4SynchrotronRadiationInMat::theElectron

private

Definition at line 138 of file G4SynchrotronRadiationInMat.hh.

theGamma

const G4ParticleDefinition* G4SynchrotronRadiationInMat::theGamma

private

Definition at line 137 of file G4SynchrotronRadiationInMat.hh.

thePositron

const G4ParticleDefinition* G4SynchrotronRadiationInMat::thePositron

private

Definition at line 139 of file G4SynchrotronRadiationInMat.hh.

TotBin

G4int G4SynchrotronRadiationInMat::TotBin

private

Definition at line 133 of file G4SynchrotronRadiationInMat.hh.

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

• G4SynchrotronRadiationInMat.hh
• G4SynchrotronRadiationInMat.cc