Geant4  10.01.p02
F05Field.cc
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26 // $Id: F05Field.cc 75672 2013-11-05 08:47:41Z gcosmo $
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35 #include "F05Field.hh"
36 
37 #include "G4SystemOfUnits.hh"
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42 {
43 }
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48 {
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53 void F05Field::GetFieldValue( const G4double Point[4], G4double* Bfield ) const
54 {
55  // Point[0],Point[1],Point[2] are x-, y-, z-cordinates, Point[3] is time
56 
57  const G4double Bz = 0.24*tesla;
58  const G4double Er = 2.113987E+6*volt/m;
59 
60  G4double Ex,Ey;
61 
62  G4double posR = std::sqrt(std::pow(Point[0],2) + std::pow(Point[1],2));
63  G4double cos_theta, sin_theta;
64 
65  if (posR>0){
66  cos_theta = Point[0]/(G4double)posR;
67  sin_theta = Point[1]/(G4double)posR;
68  Ex = -1*Er*cos_theta;//apply radial electric field
69  Ey = -1*Er*sin_theta;
70  }else{
71  Ex=0;
72  Ey=0;
73  }
74 
75  Bfield[0]=0;
76  Bfield[1]=0;
77  Bfield[2]=Bz;
78 
79  Bfield[3]=Ex;
80  Bfield[4]=Ey;
81  Bfield[5]=0;
82 
83  return;
84 }
static const double volt
Definition: G4SIunits.hh:223
virtual void GetFieldValue(const G4double Point[4], G4double *Bfield) const
GetFieldValue() returns the field value at a given point[]. field is really field[6]: Bx...
Definition: F05Field.cc:53
virtual ~F05Field()
Definition: F05Field.cc:47
Definition of the F05Field class.
static const double m
Definition: G4SIunits.hh:110
static const double tesla
Definition: G4SIunits.hh:247
double G4double
Definition: G4Types.hh:76
F05Field()
Definition: F05Field.cc:41