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Geant4/examples/extended/exoticphysics/monopole/src/G4MonopoleEquation.cc

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Differences between /examples/extended/exoticphysics/monopole/src/G4MonopoleEquation.cc (Version 11.3.0) and /examples/extended/exoticphysics/monopole/src/G4MonopoleEquation.cc (Version 9.6.p2)


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 25 //                                                 25 //
 26 /// \file exoticphysics/monopole/src/G4Monopol     26 /// \file exoticphysics/monopole/src/G4MonopoleEquation.cc
 27 /// \brief Implementation of the G4MonopoleEqu     27 /// \brief Implementation of the G4MonopoleEquation class
 28 //                                                 28 //
                                                   >>  29 // $Id: G4MonopoleEquation.cc 66994 2013-01-29 14:34:08Z gcosmo $
 29 //                                                 30 //
 30 //....oooOO0OOooo........oooOO0OOooo........oo     31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 31 //....oooOO0OOooo........oooOO0OOooo........oo     32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 32 //                                                 33 //
 33 //                                                 34 //
 34 // class G4MonopoleEquation                        35 // class G4MonopoleEquation
 35 //                                                 36 //
 36 // Class description:                              37 // Class description:
 37 //                                                 38 //
 38 //                                                 39 //
 39 //  This is the standard right-hand side for e     40 //  This is the standard right-hand side for equation of motion.
 40 //                                                 41 //
 41 //  The only case another is required is when      42 //  The only case another is required is when using a moving reference
 42 //  frame ... or extending the class to includ     43 //  frame ... or extending the class to include additional Forces,
 43 //  eg an electric field                           44 //  eg an electric field
 44 //                                                 45 //
 45 //  10.11.98   V.Grichine                          46 //  10.11.98   V.Grichine
 46 //                                                 47 //
 47 //  30.04.10   S.Burdin (modified to use for t     48 //  30.04.10   S.Burdin (modified to use for the monopole trajectories).
 48 //                                                 49 //
 49 //  15.06.10   B.Bozsogi (replaced the hardcod     50 //  15.06.10   B.Bozsogi (replaced the hardcoded magnetic charge with
 50 //                        the one passed by G4     51 //                        the one passed by G4MonopoleTransportation)
 51 //                       +workaround to pass t     52 //                       +workaround to pass the electric charge.
 52 //                                             <<  53 // 
 53 //  12.07.10  S.Burdin (added equations for th     54 //  12.07.10  S.Burdin (added equations for the electric charges)
 54 // -------------------------------------------     55 // -------------------------------------------------------------------
 55                                                    56 
 56 #include "G4MonopoleEquation.hh"                   57 #include "G4MonopoleEquation.hh"
 57                                                <<  58 #include "globals.hh"
 58 #include "G4PhysicalConstants.hh"                  59 #include "G4PhysicalConstants.hh"
 59 #include "G4SystemOfUnits.hh"                      60 #include "G4SystemOfUnits.hh"
 60 #include "globals.hh"                          << 
 61                                                << 
 62 #include <iomanip>                                 61 #include <iomanip>
 63                                                    62 
 64 //....oooOO0OOooo........oooOO0OOooo........oo     63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 65                                                    64 
 66 G4MonopoleEquation::G4MonopoleEquation(G4Magne <<  65 G4MonopoleEquation::G4MonopoleEquation(G4ElectroMagneticField *emField )
 67 {                                              <<  66       : G4EquationOfMotion( emField ) 
 68   G4cout << "G4MonopoleEquation::G4MonopoleEqu <<  67 {}
 69 }                                              << 
 70                                                    68 
 71 //....oooOO0OOooo........oooOO0OOooo........oo     69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 72                                                    70 
 73 G4MonopoleEquation::~G4MonopoleEquation() {}   <<  71 G4MonopoleEquation::~G4MonopoleEquation()
                                                   >>  72 {}
 74                                                    73 
 75 //....oooOO0OOooo........oooOO0OOooo........oo     74 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 76                                                    75 
 77 void G4MonopoleEquation::SetChargeMomentumMass <<  76 void  
 78                                                <<  77 G4MonopoleEquation::SetChargeMomentumMass(G4double particleMagneticCharge, 
 79                                                <<  78                                           G4double particleElectricCharge,
                                                   >>  79                                           G4double particleMass)
 80 {                                                  80 {
 81   G4double particleMagneticCharge = particleCh << 
 82   G4double particleElectricCharge = particleCh << 
 83                                                << 
 84   //   fElCharge = particleElectricCharge;         81   //   fElCharge = particleElectricCharge;
 85   fElCharge = eplus * particleElectricCharge * <<  82   fElCharge =eplus* particleElectricCharge*c_light;
 86                                                <<  83    
 87   fMagCharge = eplus * particleMagneticCharge  <<  84   fMagCharge =  eplus*particleMagneticCharge*c_light ;
 88                                                    85 
 89   // G4cout << " G4MonopoleEquation: ElectricC     86   // G4cout << " G4MonopoleEquation: ElectricCharge=" << particleElectricCharge
 90   //           << "; MagneticCharge=" << parti     87   //           << "; MagneticCharge=" << particleMagneticCharge
 91   //           << G4endl;                          88   //           << G4endl;
 92                                                <<  89  
 93   fMassCof = particleMass * particleMass;      <<  90   fMassCof = particleMass*particleMass ; 
 94 }                                                  91 }
 95                                                    92 
 96 //....oooOO0OOooo........oooOO0OOooo........oo     93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 97                                                    94 
 98 void G4MonopoleEquation::EvaluateRhsGivenB(con <<  95 void
 99                                            G4d <<  96 G4MonopoleEquation::EvaluateRhsGivenB(const G4double y[],
                                                   >>  97                                       const G4double Field[],
                                                   >>  98                                       G4double dydx[] ) const
100 {                                                  99 {
101   // Components of y:                             100   // Components of y:
102   //    0-2 dr/ds,                             << 101   //    0-2 dr/ds, 
103   //    3-5 dp/ds - momentum derivatives       << 102   //    3-5 dp/ds - momentum derivatives 
104                                                << 
105   G4double pSquared = y[3] * y[3] + y[4] * y[4 << 
106                                                   103 
107   G4double Energy = std::sqrt(pSquared + fMass << 104   G4double pSquared = y[3]*y[3] + y[4]*y[4] + y[5]*y[5] ;
108                                                   105 
109   G4double pModuleInverse = 1.0 / std::sqrt(pS << 106   G4double Energy   = std::sqrt( pSquared + fMassCof );
                                                   >> 107    
                                                   >> 108   G4double pModuleInverse  = 1.0/std::sqrt(pSquared);
110                                                   109 
111   G4double inverse_velocity = Energy * pModule    110   G4double inverse_velocity = Energy * pModuleInverse / c_light;
112                                                   111 
113   G4double cofEl = fElCharge * pModuleInverse; << 112   G4double cofEl     = fElCharge * pModuleInverse ;
114   G4double cofMag = fMagCharge * Energy * pMod << 113   G4double cofMag = fMagCharge * Energy * pModuleInverse; 
115                                                   114 
116   dydx[0] = y[3] * pModuleInverse;             << 
117   dydx[1] = y[4] * pModuleInverse;             << 
118   dydx[2] = y[5] * pModuleInverse;             << 
119                                                   115 
120   // G4double magCharge = twopi * hbar_Planck  << 116   dydx[0] = y[3]*pModuleInverse ;                         
                                                   >> 117   dydx[1] = y[4]*pModuleInverse ;                         
                                                   >> 118   dydx[2] = y[5]*pModuleInverse ;                    
                                                   >> 119      
                                                   >> 120   // G4double magCharge = twopi * hbar_Planck / (eplus * mu0);    
121   // magnetic charge in SI units A*m conventio    121   // magnetic charge in SI units A*m convention
122   //  see http://en.wikipedia.org/wiki/Magneti << 122   //  see http://en.wikipedia.org/wiki/Magnetic_monopole   
123   //   G4cout  << "Magnetic charge:  " << magC << 123   //   G4cout  << "Magnetic charge:  " << magCharge << G4endl;   
124   // dp/ds = dp/dt * dt/ds = dp/dt / v = Force    124   // dp/ds = dp/dt * dt/ds = dp/dt / v = Force / velocity
125   // dydx[3] = fMagCharge * Field[0]  * invers << 125   // dydx[3] = fMagCharge * Field[0]  * inverse_velocity  * c_light;    
126   // multiplied by c_light to convert to MeV/m    126   // multiplied by c_light to convert to MeV/mm
127   //     dydx[4] = fMagCharge * Field[1]  * in << 127   //     dydx[4] = fMagCharge * Field[1]  * inverse_velocity  * c_light; 
128   //     dydx[5] = fMagCharge * Field[2]  * in << 128   //     dydx[5] = fMagCharge * Field[2]  * inverse_velocity  * c_light; 
129                                                << 129       
130   dydx[3] = cofMag * Field[0] + cofEl * (y[4]  << 130   dydx[3] = cofMag * Field[0] + cofEl * (y[4]*Field[2] - y[5]*Field[1]);   
131   dydx[4] = cofMag * Field[1] + cofEl * (y[5]  << 131   dydx[4] = cofMag * Field[1] + cofEl * (y[5]*Field[0] - y[3]*Field[2]); 
132   dydx[5] = cofMag * Field[2] + cofEl * (y[3]  << 132   dydx[5] = cofMag * Field[2] + cofEl * (y[3]*Field[1] - y[4]*Field[0]); 
133                                                << 133    
134   //        G4cout << std::setprecision(5)<< "    134   //        G4cout << std::setprecision(5)<< "E=" << Energy
135   //               << "; p="<< 1/pModuleInvers    135   //               << "; p="<< 1/pModuleInverse
136   //               << "; mC="<< magCharge         136   //               << "; mC="<< magCharge
137   //               <<"; x=" << y[0]               137   //               <<"; x=" << y[0]
138   //               <<"; y=" << y[1]               138   //               <<"; y=" << y[1]
139   //               <<"; z=" << y[2]               139   //               <<"; z=" << y[2]
140   //               <<"; dydx[3]=" << dydx[3]      140   //               <<"; dydx[3]=" << dydx[3]
141   //               <<"; dydx[4]=" << dydx[4]      141   //               <<"; dydx[4]=" << dydx[4]
142   //               <<"; dydx[5]=" << dydx[5]      142   //               <<"; dydx[5]=" << dydx[5]
143   //               << G4endl;                     143   //               << G4endl;
144                                                   144 
145   dydx[6] = 0.;  // not used                   << 145   dydx[6] = 0.;//not used
146                                                << 146    
147   // Lab Time of flight                           147   // Lab Time of flight
148   dydx[7] = inverse_velocity;                     148   dydx[7] = inverse_velocity;
149   return;                                         149   return;
150 }                                                 150 }
151                                                   151 
152 //....oooOO0OOooo........oooOO0OOooo........oo    152 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
153                                                   153