G4ErrorMag_UsualEqRhs Class Reference

#include <G4ErrorMag_UsualEqRhs.hh>

Inheritance diagram for G4ErrorMag_UsualEqRhs:

Public Member Functions
void	EvaluateRhsGivenB (const G4double y[], const G4double B[3], G4double dydx[]) const
void	EvaluateRhsReturnB (const G4double y[], G4double dydx[], G4double Field[]) const
G4double	FCof () const
	G4ErrorMag_UsualEqRhs (G4MagneticField *MagField)
G4Field *	GetFieldObj ()
const G4Field *	GetFieldObj () const
void	GetFieldValue (const G4double Point[4], G4double Field[]) const
void	RightHandSide (const G4double y[], G4double dydx[]) const
virtual void	SetChargeMomentumMass (G4ChargeState particleCharge, G4double MomentumXc, G4double mass)
void	SetFieldObj (G4Field *pField)
	~G4ErrorMag_UsualEqRhs ()

Private Attributes
G4double	fCof_val = 0.0
G4Field *	itsField = nullptr

Static Private Attributes
static const G4double	fUnitConstant = 0.299792458 * (GeV/(tesla*m))

Detailed Description

Definition at line 41 of file G4ErrorMag_UsualEqRhs.hh.

Constructor & Destructor Documentation

G4ErrorMag_UsualEqRhs()

G4ErrorMag_UsualEqRhs::G4ErrorMag_UsualEqRhs

(

G4MagneticField *

MagField

)

Definition at line 36 of file G4ErrorMag_UsualEqRhs.cc.

  : G4Mag_UsualEqRhs( MagField )
{
}

~G4ErrorMag_UsualEqRhs()

G4ErrorMag_UsualEqRhs::~G4ErrorMag_UsualEqRhs

(

)

Definition at line 41 of file G4ErrorMag_UsualEqRhs.cc.

{
}

Member Function Documentation

EvaluateRhsGivenB()

void G4ErrorMag_UsualEqRhs::EvaluateRhsGivenB ( const G4double  y[], const G4double  B[3], G4double  dydx[]  ) const

virtual

Implements G4Mag_EqRhs.

Definition at line 48 of file G4ErrorMag_UsualEqRhs.cc.

{
 
  G4Mag_UsualEqRhs::EvaluateRhsGivenB(y, B, dydx );
  
  if(G4ErrorPropagatorData::GetErrorPropagatorData()->GetMode()
     == G4ErrorMode_PropBackwards)
  {
    G4double momentum_mag_square = sqr(y[3]) + sqr(y[4]) + sqr(y[5]);
    G4double inv_momentum_magnitude = 1.0 / std::sqrt( momentum_mag_square );
    
    G4double cof = FCof()*inv_momentum_magnitude;
 
    dydx[3] = cof*(y[4]*(-B[2]) - y[5]*(-B[1])) ;
    dydx[4] = cof*(y[5]*(-B[0]) - y[3]*(-B[2])) ;
    dydx[5] = cof*(y[3]*(-B[1]) - y[4]*(-B[0])) ;    
  }
  return;
}

References B(), G4Mag_UsualEqRhs::EvaluateRhsGivenB(), G4Mag_EqRhs::FCof(), G4ErrorMode_PropBackwards, G4ErrorPropagatorData::GetErrorPropagatorData(), and sqr().

EvaluateRhsReturnB()

void G4EquationOfMotion::EvaluateRhsReturnB ( const G4double  y[], G4double  dydx[], G4double  Field[]  ) const

inlineinherited

Referenced by G4RKG3_Stepper::StepNoErr().

FCof()

G4double G4Mag_EqRhs::FCof ( ) const

inlineinherited

Definition at line 62 of file G4Mag_EqRhs.hh.

{ return fCof_val; }

References G4Mag_EqRhs::fCof_val.

Referenced by G4MagHelicalStepper::AdvanceHelix(), G4BFieldIntegrationDriver::CurvatureRadius(), EvaluateRhsGivenB(), G4Mag_SpinEqRhs::EvaluateRhsGivenB(), G4Mag_UsualEqRhs::EvaluateRhsGivenB(), G4ConstRK4::RightHandSideConst(), and G4TMagFieldEquation< T_Field >::TEvaluateRhsGivenB().

GetFieldObj() [1/2]

G4Field * G4EquationOfMotion::GetFieldObj ( )

inlineinherited

GetFieldObj() [2/2]

const G4Field * G4EquationOfMotion::GetFieldObj ( ) const

inlineinherited

Referenced by G4NystromRK4::GetField().

GetFieldValue()

void G4EquationOfMotion::GetFieldValue ( const G4double  Point[4], G4double  Field[]  ) const

inlineinherited

Referenced by G4BFieldIntegrationDriver::GetFieldValue(), and G4MultiLevelLocator::ReportFieldValue().

RightHandSide()

void G4EquationOfMotion::RightHandSide ( const G4double  y[], G4double  dydx[]  ) const

inlineinherited

Referenced by G4ModifiedMidpoint::DoStep(), and G4VFSALIntegrationStepper::RightHandSide().

SetChargeMomentumMass()

void G4Mag_UsualEqRhs::SetChargeMomentumMass ( G4ChargeState  particleCharge, G4double  MomentumXc, G4double  mass  )

virtualinherited

Reimplemented from G4Mag_EqRhs.

Definition at line 67 of file G4Mag_UsualEqRhs.cc.

{
   G4Mag_EqRhs::SetChargeMomentumMass( particleCharge, MomentumXc, mass);
}

References G4Mag_EqRhs::SetChargeMomentumMass().

SetFieldObj()

void G4EquationOfMotion::SetFieldObj ( G4Field *  pField )

inlineinherited

Referenced by G4FieldManager::SetDetectorField(), and G4NystromRK4::SetDistanceForConstantField().

Field Documentation

fCof_val

G4double G4Mag_EqRhs::fCof_val = 0.0

privateinherited

Definition at line 69 of file G4Mag_EqRhs.hh.

Referenced by G4Mag_EqRhs::FCof(), and G4Mag_EqRhs::SetChargeMomentumMass().

fUnitConstant

const G4double G4Mag_EqRhs::fUnitConstant = 0.299792458 * (GeV/(tesla*m))

staticprivateinherited

Definition at line 71 of file G4Mag_EqRhs.hh.

itsField

G4Field* G4EquationOfMotion::itsField = nullptr

privateinherited

Definition at line 90 of file G4EquationOfMotion.hh.

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

• source/geometry/magneticfield/include/G4ErrorMag_UsualEqRhs.hh
• source/geometry/magneticfield/src/G4ErrorMag_UsualEqRhs.cc