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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 // G4RepleteEofM 27 // 28 // Class description: 29 // 30 // This is the right-hand side of equation of motion in a combined 31 // field, including: magnetic, electric, gravity, and gradient B field, 32 // as well as spin tracking 33 34 // Created: P.Gumplinger, 08.04.2013 35 // ------------------------------------------------------------------- 36 #ifndef G4EOFM_HH 37 #define G4EOFM_HH 38 39 #include "G4ChargeState.hh" 40 #include "G4EquationOfMotion.hh" 41 42 class G4Field; 43 44 class G4RepleteEofM : public G4EquationOfMotion 45 { 46 public: 47 48 G4RepleteEofM(G4Field*, G4int nvar = 8); 49 ~G4RepleteEofM() override; 50 51 void SetChargeMomentumMass(G4ChargeState particleCharge, // in e+ units 52 G4double MomentumXc, 53 G4double mass) override; 54 55 void EvaluateRhsGivenB(const G4double y[], 56 const G4double Field[], 57 G4double dydx[] ) const override; 58 // Given the value of the field, this function 59 // calculates the value of the derivative dydx. 60 61 inline void SetAnomaly(G4double a) { anomaly = a; } 62 inline G4double GetAnomaly() const { return anomaly; } 63 // set/get magnetic anomaly 64 65 inline void SetBField() { fBfield = true; } 66 inline void SetEField() { fEfield = true; } 67 inline void SetgradB() { fgradB = true; } 68 inline void SetSpin() { fSpin = true; } 69 70 private: 71 72 G4int fNvar = 0; 73 74 G4bool fBfield=false, fEfield=false, 75 fGfield=false, fgradB=false, fSpin=false; 76 77 G4double charge=0.0, mass=0.0, magMoment=0.0, spin=0.0; 78 79 G4double ElectroMagCof=0.0; 80 81 G4double omegac=0.0, anomaly=0.0; 82 G4double beta=0.0, gamma=0.0; 83 }; 84 85 #endif 86