Geant4 11.2.2
Toolkit for the simulation of the passage of particles through matter
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G4MonopoleEq Class Reference

#include <G4MonopoleEq.hh>

+ Inheritance diagram for G4MonopoleEq:

Public Member Functions

 G4MonopoleEq (G4ElectroMagneticField *emField)
 
 ~G4MonopoleEq () override
 
void SetChargeMomentumMass (G4ChargeState particleCharge, G4double MomentumXc, G4double mass) override
 
void EvaluateRhsGivenB (const G4double y[], const G4double Field[], G4double dydx[]) const override
 
- Public Member Functions inherited from G4EquationOfMotion
 G4EquationOfMotion (G4Field *Field)
 
virtual ~G4EquationOfMotion ()
 
virtual void EvaluateRhsGivenB (const G4double y[], const G4double B[3], G4double dydx[]) const =0
 
void RightHandSide (const G4double y[], G4double dydx[]) const
 
void EvaluateRhsReturnB (const G4double y[], G4double dydx[], G4double Field[]) const
 
void GetFieldValue (const G4double Point[4], G4double Field[]) const
 
const G4FieldGetFieldObj () const
 
G4FieldGetFieldObj ()
 
void SetFieldObj (G4Field *pField)
 

Detailed Description

Definition at line 43 of file G4MonopoleEq.hh.

Constructor & Destructor Documentation

◆ G4MonopoleEq()

G4MonopoleEq::G4MonopoleEq ( G4ElectroMagneticField * emField)

Definition at line 36 of file G4MonopoleEq.cc.

37 : G4EquationOfMotion( emField )
38{
39}
G4EquationOfMotion(G4Field *Field)

◆ ~G4MonopoleEq()

G4MonopoleEq::~G4MonopoleEq ( )
overridedefault

Member Function Documentation

◆ EvaluateRhsGivenB()

void G4MonopoleEq::EvaluateRhsGivenB ( const G4double y[],
const G4double Field[],
G4double dydx[] ) const
override

Definition at line 56 of file G4MonopoleEq.cc.

59{
60
61 // Components of y:
62 // 0-2 dr/ds,
63 // 3-5 d(pc)/ds - momentum derivatives
64
65 G4double pSquared = y[3]*y[3] + y[4]*y[4] + y[5]*y[5] ;
66
67 G4double Energy = std::sqrt( pSquared + fMassCof );
68 G4double cof2 = Energy*c_light ;
69
70 G4double pModuleInverse = 1.0/std::sqrt(pSquared) ;
71
72 G4double inverse_velocity = Energy * pModuleInverse / c_light;
73
74 G4double cof1 = fElectroMagCof*pModuleInverse ;
75
76 dydx[0] = y[3]*pModuleInverse ;
77 dydx[1] = y[4]*pModuleInverse ;
78 dydx[2] = y[5]*pModuleInverse ;
79
80 dydx[3] = cof1*(cof2*Field[0] - (y[4]*Field[5] - y[5]*Field[4])) ;
81
82 dydx[4] = cof1*(cof2*Field[1] - (y[5]*Field[3] - y[3]*Field[5])) ;
83
84 dydx[5] = cof1*(cof2*Field[2] - (y[3]*Field[4] - y[4]*Field[3])) ;
85
86 dydx[6] = 0.; //not used
87
88 // Lab Time of flight
89 //
90 dydx[7] = inverse_velocity;
91
92 return;
93}
double G4double
Definition G4Types.hh:83

◆ SetChargeMomentumMass()

void G4MonopoleEq::SetChargeMomentumMass ( G4ChargeState particleCharge,
G4double MomentumXc,
G4double mass )
overridevirtual

Implements G4EquationOfMotion.

Definition at line 44 of file G4MonopoleEq.cc.

47{
48 G4double pcharge = particleCharge.GetCharge();
49 fElectroMagCof = eplus*pcharge; // no *c_light as for ususal q
50 fElectroMagCof /= 2*fine_structure_const;
51
52 fMassCof = particleMass*particleMass ;
53}
G4double GetCharge() const

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