Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/include/G4HarmonicPolMagField.hh

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  1 //
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  3 // * License and Disclaimer                                           *
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 25 //
 26 // G4HarmonicPolMagField
 27 //
 28 // Class description:
 29 //
 30 // Class describing magnetic field parametrised by harmonic polynom up to
 31 // 3rd order. The function MagneticField(yTrack,B) calculates the magnetic
 32 // field induction vector B for the trajectory point yTrack according to
 33 // formula given in:
 34 //   M.Metcalf, Analysis of the SFM Field
 35 //   OM Development Note AP-10 (revised), 1974
 36 
 37 // Author: V.Grichine, 03.02.1997
 38 // --------------------------------------------------------------------
 39 #ifndef G4HARMONICPOLMAGFIELD_HH
 40 #define G4HARMONICPOLMAGFIELD_HH
 41 
 42 #include "G4MagneticField.hh"
 43 
 44 class G4HarmonicPolMagField : public G4MagneticField
 45 {
 46   public:
 47                        
 48     G4HarmonicPolMagField();
 49    ~G4HarmonicPolMagField() override;
 50      
 51     void GetFieldValue(const G4double yTrack[] ,
 52                              G4double B[]      ) const override  ;
 53     G4HarmonicPolMagField* Clone() const override;
 54 };
 55 
 56 #endif
 57