Geant4  v4-10.4-release
 모두 클래스 네임스페이스들 파일들 함수 변수 타입정의 열거형 타입 열거형 멤버 Friends 매크로 그룹들 페이지들
G4Mag_EqRhs.hh
이 파일의 문서화 페이지로 가기
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: G4Mag_EqRhs.hh 69699 2013-05-13 08:50:30Z gcosmo $
28 //
29 //
30 // class G4Mag_EqRhs
31 //
32 // Class description:
33 //
34 // The "standard" equation of motion of a particle in a pure magnetic field.
35 
36 // History:
37 // - Created. J.Apostolakis, January 13th 1997
38 // --------------------------------------------------------------------
39 
40 #ifndef G4_MAG_EQRHS_DEF
41 #define G4_MAG_EQRHS_DEF
42 
43 #include "G4Types.hh"
44 #include "G4ChargeState.hh"
45 #include "G4EquationOfMotion.hh"
46 
47 class G4MagneticField;
48 
50 {
51  public: // with description
52 
53  G4Mag_EqRhs( G4MagneticField *magField );
54  virtual ~G4Mag_EqRhs();
55  // Constructor and destructor. No actions.
56 
57  virtual void EvaluateRhsGivenB( const G4double y[],
58  const G4double B[3],
59  G4double dydx[] ) const = 0;
60  // Given the value of the field "B", this function
61  // calculates the value of the derivative dydx.
62  // This is the _only_ function a subclass must define.
63  // The other two functions use Rhs_givenB.
64 
65  inline G4double FCof() const;
66 
67  virtual void SetChargeMomentumMass( G4ChargeState particleCharge,
68  G4double MomentumXc,
69  G4double mass);
70 
71  private:
72 
74 
75  static const G4double fUnitConstant; // Set in G4Mag_EqRhs.cc
76  // to 0.299792458
77  // Coefficient in the Lorentz motion equation (Lorentz force), if the
78  // magnetic field B is in Tesla, the particle charge in units of the
79  // elementary (positron?) charge, the momentum P in MeV/c, and the
80  // space coordinates and path along the trajectory in mm .
81 };
82 
83 inline
85 {
86  return fCof_val;
87 }
88 
89 #endif /* G4_MAG_EQRHS_DEF */
G4Mag_EqRhs(G4MagneticField *magField)
Definition: G4Mag_EqRhs.cc:50
virtual ~G4Mag_EqRhs()
Definition: G4Mag_EqRhs.cc:66
virtual void EvaluateRhsGivenB(const G4double y[], const G4double B[3], G4double dydx[]) const =0
Float_t y
Definition: compare.C:6
G4double FCof() const
Definition: G4Mag_EqRhs.hh:84
double G4double
Definition: G4Types.hh:76
static const G4double fUnitConstant
Definition: G4Mag_EqRhs.hh:75
G4double fCof_val
Definition: G4Mag_EqRhs.hh:73
double B(double temperature)
virtual void SetChargeMomentumMass(G4ChargeState particleCharge, G4double MomentumXc, G4double mass)
Definition: G4Mag_EqRhs.cc:56