include/Geant4/G4HarmonicPolMagField.hh

0001 //
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0025 //
0026 // G4HarmonicPolMagField
0027 //
0028 // Class description:
0029 //
0030 // Class describing magnetic field parametrised by harmonic polynom up to
0031 // 3rd order. The function MagneticField(yTrack,B) calculates the magnetic
0032 // field induction vector B for the trajectory point yTrack according to
0033 // formula given in:
0034 //   M.Metcalf, Analysis of the SFM Field
0035 //   OM Development Note AP-10 (revised), 1974
0036
0037 // Author: V.Grichine, 03.02.1997
0038 // --------------------------------------------------------------------
0039 #ifndef G4HARMONICPOLMAGFIELD_HH
0040 #define G4HARMONICPOLMAGFIELD_HH
0041
0042 #include "G4MagneticField.hh"
0043
0044 class G4HarmonicPolMagField : public G4MagneticField
0045 {
0046   public:
0047
0048     G4HarmonicPolMagField();
0049    ~G4HarmonicPolMagField() override;
0050
0051     void GetFieldValue(const G4double yTrack[] ,
0052                              G4double B[]      ) const override  ;
0053     G4HarmonicPolMagField* Clone() const override;
0054 };
0055
0056 #endif