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Geant4/processes/electromagnetic/utils/src/G4VMscModel.cc

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Differences between /processes/electromagnetic/utils/src/G4VMscModel.cc (Version 11.3.0) and /processes/electromagnetic/utils/src/G4VMscModel.cc (Version 9.5.p2)


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                                                   >>  26 // $Id: G4VMscModel.cc,v 1.18 2010-09-07 16:05:33 vnivanch Exp $
                                                   >>  27 // GEANT4 tag $Name: not supported by cvs2svn $
 26 //                                                 28 //
 27 // -------------------------------------------     29 // -------------------------------------------------------------------
 28 //                                                 30 //
 29 // GEANT4 Class file                               31 // GEANT4 Class file
 30 //                                                 32 //
 31 //                                                 33 //
 32 // File name:     G4VMscModel                      34 // File name:     G4VMscModel
 33 //                                                 35 //
 34 // Author:        Vladimir Ivanchenko              36 // Author:        Vladimir Ivanchenko
 35 //                                                 37 //
 36 // Creation date: 07.03.2008                       38 // Creation date: 07.03.2008
 37 //                                                 39 //
 38 // Modifications:                                  40 // Modifications:
 39 //                                                 41 //
 40 //                                                 42 //
 41 // Class Description:                              43 // Class Description:
 42 //                                                 44 //
 43 // General interface to msc models                 45 // General interface to msc models
 44                                                    46 
 45 // -------------------------------------------     47 // -------------------------------------------------------------------
 46 //                                                 48 //
 47                                                    49 
 48 #include "G4VMscModel.hh"                          50 #include "G4VMscModel.hh"
 49 #include "G4SystemOfUnits.hh"                  << 
 50 #include "G4ParticleChangeForMSC.hh"               51 #include "G4ParticleChangeForMSC.hh"
 51 #include "G4TransportationManager.hh"              52 #include "G4TransportationManager.hh"
 52 #include "G4LossTableManager.hh"               << 
 53 #include "G4LossTableBuilder.hh"               << 
 54 #include "G4EmParameters.hh"                   << 
 55                                                    53 
 56 //....oooOO0OOooo........oooOO0OOooo........oo     54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 57 //....oooOO0OOooo........oooOO0OOooo........oo     55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 58                                                    56 
 59 G4VMscModel::G4VMscModel(const G4String& nam):     57 G4VMscModel::G4VMscModel(const G4String& nam):
 60   G4VEmModel(nam),                                 58   G4VEmModel(nam), 
 61   lambdalimit(1.*CLHEP::mm),                   <<  59   safetyHelper(0),
                                                   >>  60   ionisation(0),
                                                   >>  61   facrange(0.04),
                                                   >>  62   facgeom(2.5),
                                                   >>  63   facsafety(0.3),
                                                   >>  64   skin(1.0),
                                                   >>  65   dtrl(0.05),
                                                   >>  66   lambdalimit(mm),
 62   geomMin(1.e-6*CLHEP::mm),                        67   geomMin(1.e-6*CLHEP::mm),
 63   geomMax(1.e50*CLHEP::mm),                        68   geomMax(1.e50*CLHEP::mm),
 64   fDisplacement(0.,0.,0.),                     <<  69   steppingAlgorithm(fUseSafety),
 65   steppingAlgorithm(fUseSafety)                <<  70   samplez(false),
                                                   >>  71   latDisplasment(true)
 66 {                                                  72 {
 67   dedx = 2.0*CLHEP::MeV*CLHEP::cm2/CLHEP::g;   <<  73   dedx       = 2.0*CLHEP::MeV*CLHEP::cm2/CLHEP::g;
                                                   >>  74   localrange = DBL_MAX;
                                                   >>  75   localtkin  = 0.0;
 68 }                                                  76 }
 69                                                    77 
 70 //....oooOO0OOooo........oooOO0OOooo........oo     78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 71                                                    79 
 72 G4VMscModel::~G4VMscModel() = default;         <<  80 G4VMscModel::~G4VMscModel()
                                                   >>  81 {}
 73                                                    82 
 74 //....oooOO0OOooo........oooOO0OOooo........oo     83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 75                                                    84 
 76 G4ParticleChangeForMSC*                        <<  85 G4ParticleChangeForMSC* G4VMscModel::GetParticleChangeForMSC()
 77 G4VMscModel::GetParticleChangeForMSC(const G4P << 
 78 {                                                  86 {
 79   // recomputed for each new run               <<  87   if(!safetyHelper) {
 80   if(nullptr == safetyHelper) {                << 
 81     safetyHelper = G4TransportationManager::Ge     88     safetyHelper = G4TransportationManager::GetTransportationManager()
 82       ->GetSafetyHelper();                         89       ->GetSafetyHelper();
 83     safetyHelper->InitialiseHelper();              90     safetyHelper->InitialiseHelper();
 84   }                                                91   }
 85   G4ParticleChangeForMSC* change = nullptr;    <<  92   G4ParticleChangeForMSC* change = 0;
 86   if (nullptr != pParticleChange) {            <<  93   if (pParticleChange) {
 87     change = static_cast<G4ParticleChangeForMS     94     change = static_cast<G4ParticleChangeForMSC*>(pParticleChange);
 88   } else {                                         95   } else {
 89     change = new G4ParticleChangeForMSC();         96     change = new G4ParticleChangeForMSC();
 90   }                                                97   }
 91   return change;                                   98   return change;
 92 }                                                  99 }
 93                                                   100 
 94 //....oooOO0OOooo........oooOO0OOooo........oo    101 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 95                                                   102 
 96 void G4VMscModel::InitialiseParameters(const G << 103 void G4VMscModel::ComputeDisplacement(G4ParticleChangeForMSC* fParticleChange,  
                                                   >> 104               const G4ThreeVector& dir,
                                                   >> 105               G4double displacement,
                                                   >> 106               G4double postsafety)
 97 {                                                 107 {
 98   if(IsLocked()) { return; }                   << 108   if(displacement <= geomMin) { return; }
 99   G4EmParameters* param = G4EmParameters::Inst << 109   const G4ThreeVector* pos = fParticleChange->GetProposedPosition();
100   if(std::abs(part->GetPDGEncoding()) == 11) { << 110 
101     steppingAlgorithm = param->MscStepLimitTyp << 111   // displaced point is definitely within the volume
102     facrange = param->MscRangeFactor();        << 112   if(displacement < postsafety) {
103     latDisplasment = param->LateralDisplacemen << 113 
104   } else {                                     << 114     // compute new endpoint of the Step
105     steppingAlgorithm = param->MscMuHadStepLim << 115     G4ThreeVector newPosition = *pos + displacement*dir;
106     facrange = param->MscMuHadRangeFactor();   << 116     safetyHelper->ReLocateWithinVolume(newPosition);
107     latDisplasment = param->MuHadLateralDispla << 117     fParticleChange->ProposePosition(newPosition);
                                                   >> 118     return;
108   }                                               119   }
109   skin = param->MscSkin();                     << 
110   facgeom = param->MscGeomFactor();            << 
111   facsafety = param->MscSafetyFactor();        << 
112   lambdalimit = param->MscLambdaLimit();       << 
113 }                                              << 
114                                                   120 
115 //....oooOO0OOooo........oooOO0OOooo........oo << 121   // displaced point may be outside the volume
                                                   >> 122   G4double newsafety = safetyHelper->ComputeSafety(*pos);
116                                                   123 
117 void G4VMscModel::DumpParameters(std::ostream& << 124   // add a factor which ensure numerical stability
118 {                                              << 125   G4double r = std::min(displacement, newsafety*0.99); 
119   G4String alg = "UseSafety";                  << 
120   if (steppingAlgorithm == fUseDistanceToBound << 
121   else if (steppingAlgorithm == fMinimal) alg  << 
122   else if (steppingAlgorithm == fUseSafetyPlus << 
123                                                   126 
124   out << std::setw(18) << "StepLim=" << alg << << 127   if(r > geomMin) {
125       << " Gfact=" << facgeom << " Sfact=" <<  << 128 
126       << " Skin=" << skin << " Llim=" << lambd << 129     // compute new endpoint of the Step
                                                   >> 130     G4ThreeVector newPosition = *pos + r*dir;
                                                   >> 131     safetyHelper->ReLocateWithinVolume(newPosition);
                                                   >> 132     fParticleChange->ProposePosition(newPosition);
                                                   >> 133   }
127 }                                                 134 }
128                                                   135 
129 //....oooOO0OOooo........oooOO0OOooo........oo    136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
130                                                   137 
131 void G4VMscModel::SampleSecondaries(std::vecto << 138 void G4VMscModel::SampleScattering(const G4DynamicParticle*, G4double)
132                                     const G4Ma << 
133                                     const G4Dy << 
134                                     G4double,  << 
135 {}                                                139 {}
136                                                   140 
137 //....oooOO0OOooo........oooOO0OOooo........oo    141 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
138                                                   142 
139 G4double G4VMscModel::GetDEDX(const G4Particle << 143 G4double G4VMscModel::ComputeTruePathLengthLimit(const G4Track&, 
140                               const G4Material << 144              G4PhysicsTable*, 
141 {                                              << 145              G4double)
142   G4double x;                                  << 
143   if (nullptr != ionisation) {                 << 
144     x = ionisation->GetDEDX(kinEnergy, couple) << 
145   } else {                                     << 
146     const G4double q = part->GetPDGCharge()*in << 
147     x = dedx*q*q;                              << 
148   }                                            << 
149   return x;                                    << 
150 }                                              << 
151                                                << 
152 //....oooOO0OOooo........oooOO0OOooo........oo << 
153                                                << 
154 G4double G4VMscModel::GetDEDX(const G4Particle << 
155                               const G4Material << 
156 {                                                 146 {
157   G4double x;                                  << 147   return DBL_MAX;
158   if (nullptr != ionisation) {                 << 
159     x = ionisation->GetDEDX(kinEnergy, couple, << 
160   } else {                                     << 
161     const G4double q = part->GetPDGCharge()*in << 
162     x = dedx*q*q;                              << 
163   }                                            << 
164   return x;                                    << 
165 }                                                 148 }
166                                                   149 
167 //....oooOO0OOooo........oooOO0OOooo........oo    150 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
168                                                   151 
169 G4double G4VMscModel::GetRange(const G4Particl << 152 G4double G4VMscModel::ComputeGeomPathLength(G4double truePathLength)
170                                const G4Materia << 
171 {                                                 153 {
172   //  << ionisation << "  " << part->GetPartic << 154   return truePathLength;
173   localtkin = kinEnergy;                       << 
174   if (nullptr != ionisation) {                 << 
175     localrange = ionisation->GetRange(kinEnerg << 
176   } else {                                     << 
177     const G4double q = part->GetPDGCharge()*in << 
178     localrange = kinEnergy/(dedx*q*q*couple->G << 
179   }                                            << 
180   //G4cout << "R(mm)= " << localrange << "  "  << 
181   return localrange;                           << 
182 }                                                 155 }
183                                                   156 
184 //....oooOO0OOooo........oooOO0OOooo........oo    157 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
185                                                   158 
186 G4double G4VMscModel::GetRange(const G4Particl << 159 G4double G4VMscModel::ComputeTrueStepLength(G4double geomPathLength)
187                                const G4Materia << 
188 {                                                 160 {
189   //G4cout << "G4VMscModel::GetRange E(MeV)= " << 161   return geomPathLength;
190   //  << ionisation << "  " << part->GetPartic << 
191   localtkin = kinEnergy;                       << 
192   if (nullptr != ionisation) {                 << 
193     localrange = ionisation->GetRange(kinEnerg << 
194   } else {                                     << 
195     const G4double q = part->GetPDGCharge()*in << 
196     localrange = kinEnergy/(dedx*q*q*couple->G << 
197   }                                            << 
198   //G4cout << "R(mm)= " << localrange << "  "  << 
199   return localrange;                           << 
200 }                                                 162 }
201                                                   163 
202 //....oooOO0OOooo........oooOO0OOooo........oo    164 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
203                                                   165 
204 G4double G4VMscModel::GetEnergy(const G4Partic << 166 void G4VMscModel::SampleSecondaries(std::vector<G4DynamicParticle*>*,
205                                 G4double range << 167             const G4MaterialCutsCouple*,
206 {                                              << 168             const G4DynamicParticle*,
207   G4double e;                                  << 169             G4double, G4double)
208   //G4cout << "G4VMscModel::GetEnergy R(mm)= " << 170 {}
209   //     << "  Rlocal(mm)= " << localrange <<  << 
210   if(nullptr != ionisation) { e = ionisation-> << 
211   else {                                       << 
212     e = localtkin;                             << 
213     if(localrange > range) {                   << 
214       G4double q = part->GetPDGCharge()*invepl << 
215       e -= (localrange - range)*dedx*q*q*coupl << 
216     }                                          << 
217   }                                            << 
218   return e;                                    << 
219 }                                              << 
220                                                   171 
221 //....oooOO0OOooo........oooOO0OOooo........oo    172 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
222                                                   173