Geant4_10
G4QuadrupoleMagField.hh
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27 // $Id: G4QuadrupoleMagField.hh 68055 2013-03-13 14:43:28Z gcosmo $
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29 //
30 // class G4QuadrupoleMagField
31 //
32 // Class description:
33 //
34 // Class for creation of quadrupole magnetic field
35 // fGradient - is the gradient value for quadrupole magnetic lense.
36 // Then the magnetic field components are:
37 // Bx = B[0] = fGradient*X ,
38 // By = B[1] = fGradient*Y ,
39 // Bz = B[2] = 0 .
40 // Here X,Y,Z are the coordinates of a space point of interest.
41 
42 // History:
43 // 3.2.97 - V.Grichine, created.
44 // 11.5.12 - B. Riese allow displaced origin and rotation (Björn Riese)
45 // -------------------------------------------------------------------
46 
47 #ifndef G4QUADRUPOLEMAGFIELD_HH
48 #define G4QUADRUPOLEMAGFIELD_HH
49 
50 #include "G4MagneticField.hh"
51 #include "G4ThreeVector.hh"
52 #include "G4RotationMatrix.hh"
53 
55 {
56  public: // with description
57 
58  G4QuadrupoleMagField(G4double pGradient);
59  G4QuadrupoleMagField(G4double pGradient,
60  G4ThreeVector pOrigin,
61  G4RotationMatrix* pMatrix);
63 
64  void GetFieldValue(const G4double yTrack[],
65  G4double B[] ) const;
66  G4QuadrupoleMagField* Clone() const;
67  private:
68 
69  G4double fGradient;
70  G4ThreeVector fOrigin;
71  G4RotationMatrix* fpMatrix;
72 };
73 #endif
74 
G4QuadrupoleMagField(G4double pGradient)
void GetFieldValue(const G4double yTrack[], G4double B[]) const
G4QuadrupoleMagField * Clone() const
double G4double
Definition: G4Types.hh:76