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Geant4/processes/electromagnetic/muons/include/G4MuPairProductionModel.hh

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Differences between /processes/electromagnetic/muons/include/G4MuPairProductionModel.hh (Version 11.3.0) and /processes/electromagnetic/muons/include/G4MuPairProductionModel.hh (Version 6.2)


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 10 // *                                                9 // *                                                                  *
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 15 // * use.  Please see the license in the file  <<  14 // * use.                                                             *
 16 // * for the full disclaimer and the limitatio << 
 17 // *                                               15 // *                                                                  *
 18 // * This  code  implementation is the result  <<  16 // * This  code  implementation is the  intellectual property  of the *
 19 // * technical work of the GEANT4 collaboratio <<  17 // * GEANT4 collaboration.                                            *
 20 // * By using,  copying,  modifying or  distri <<  18 // * By copying,  distributing  or modifying the Program (or any work *
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 22 // * use  in  resulting  scientific  publicati <<  20 // * statement, and all its terms.                                    *
 23 // * acceptance of all terms of the Geant4 Sof << 
 24 // *******************************************     21 // ********************************************************************
 25 //                                                 22 //
                                                   >>  23 // $Id: G4MuPairProductionModel.hh,v 1.12 2004/04/28 14:39:43 vnivanch Exp $
                                                   >>  24 // GEANT4 tag $Name: geant4-06-02 $
 26 //                                                 25 //
 27 // -------------------------------------------     26 // -------------------------------------------------------------------
 28 //                                                 27 //
 29 // GEANT4 Class header file                        28 // GEANT4 Class header file
 30 //                                                 29 //
 31 //                                                 30 //
 32 // File name:     G4MuPairProductionModel          31 // File name:     G4MuPairProductionModel
 33 //                                                 32 //
 34 // Author:        Vladimir Ivanchenko on base      33 // Author:        Vladimir Ivanchenko on base of Laszlo Urban code
 35 //                                                 34 //
 36 // Creation date: 18.05.2002                       35 // Creation date: 18.05.2002
 37 //                                                 36 //
 38 // Modifications:                                  37 // Modifications:
 39 //                                                 38 //
 40 // 23-12-02 Change interface in order to move      39 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
 41 // 27-01-03 Make models region aware (V.Ivanch     40 // 27-01-03 Make models region aware (V.Ivanchenko)
 42 // 13-02-03 Add name (V.Ivanchenko)                41 // 13-02-03 Add name (V.Ivanchenko)
 43 // 10-02-04 Update parameterisation using R.Ko     42 // 10-02-04 Update parameterisation using R.Kokoulin model (V.Ivanchenko)
 44 // 10-02-04 Add lowestKinEnergy (V.Ivanchenko)     43 // 10-02-04 Add lowestKinEnergy (V.Ivanchenko)
 45 // 13-02-06 Add ComputeCrossSectionPerAtom (mm <<  44 //
 46 // 12-05-06 Add parameter to SelectRandomAtom  <<  45 
 47 // 11-10-07 Add ignoreCut flag (V.Ivanchenko)  << 
 48 // 28-02-08 Reorganized protected methods and  << 
 49 //                                                 46 //
 50 // Class Description:                              47 // Class Description:
 51 //                                                 48 //
 52 // Implementation of e+e- pair production by m     49 // Implementation of e+e- pair production by muons
 53 // A.G. Bogdanov et al., IEEE Trans. Nuc. Sci. << 
 54 // Base class for all pair production models f << 
 55 //                                                 50 //
                                                   >>  51 
 56 // -------------------------------------------     52 // -------------------------------------------------------------------
 57 //                                                 53 //
 58                                                    54 
 59 #ifndef G4MuPairProductionModel_h                  55 #ifndef G4MuPairProductionModel_h
 60 #define G4MuPairProductionModel_h 1                56 #define G4MuPairProductionModel_h 1
 61                                                    57 
 62 #include "G4VEmModel.hh"                           58 #include "G4VEmModel.hh"
 63 #include "G4NistManager.hh"                    << 
 64 #include "G4ElementData.hh"                    << 
 65 #include "G4Physics2DVector.hh"                << 
 66 #include <vector>                                  59 #include <vector>
 67                                                    60 
 68 class G4Element;                                   61 class G4Element;
 69 class G4ParticleChangeForLoss;                 << 
 70 class G4ParticleChangeForGamma;                << 
 71                                                    62 
 72 class G4MuPairProductionModel : public G4VEmMo     63 class G4MuPairProductionModel : public G4VEmModel
 73 {                                                  64 {
                                                   >>  65 
 74 public:                                            66 public:
 75                                                    67 
 76   explicit G4MuPairProductionModel(const G4Par <<  68   G4MuPairProductionModel(const G4ParticleDefinition* p = 0, const G4String& nam = "MuPairProd");
 77                                    const G4Str <<  69 
                                                   >>  70   ~G4MuPairProductionModel();
                                                   >>  71 
                                                   >>  72   void Initialise(const G4ParticleDefinition*, const G4DataVector&);
                                                   >>  73 
                                                   >>  74   G4double HighEnergyLimit(const G4ParticleDefinition* p);
                                                   >>  75 
                                                   >>  76   G4double LowEnergyLimit(const G4ParticleDefinition* p);
                                                   >>  77 
                                                   >>  78   void SetHighEnergyLimit(G4double e) {highKinEnergy = e;};
                                                   >>  79 
                                                   >>  80   void SetLowEnergyLimit(G4double e) {lowKinEnergy = e;};
 78                                                    81 
 79   ~G4MuPairProductionModel() override = defaul <<  82   void SetLowestKineticEnergy(G4double e) {lowestKinEnergy = e;};
 80                                                    83 
 81   void Initialise(const G4ParticleDefinition*, <<  84   G4double MinEnergyCut(const G4ParticleDefinition*,
                                                   >>  85                         const G4MaterialCutsCouple*);
 82                                                    86 
 83   void InitialiseLocal(const G4ParticleDefinit <<  87   G4bool IsInCharge(const G4ParticleDefinition*);
 84                        G4VEmModel* masterModel <<  88 
 85                                                <<  89   G4double ComputeDEDX(const G4MaterialCutsCouple*,
 86   G4double ComputeCrossSectionPerAtom(const G4 <<  90                        const G4ParticleDefinition*,
 87               G4double kineticEnergy,          <<  91                              G4double kineticEnergy,
 88               G4double Z, G4double A,          <<  92                              G4double cutEnergy);
 89               G4double cutEnergy,              <<  93 
 90               G4double maxEnergy) override;    <<  94   G4double CrossSection(const G4MaterialCutsCouple*,
 91                                                <<  95                         const G4ParticleDefinition*,
 92   G4double ComputeDEDXPerVolume(const G4Materi <<  96                               G4double kineticEnergy,
 93                                 const G4Partic <<  97                               G4double cutEnergy,
 94                                 G4double kinet <<  98                               G4double maxEnergy);
 95                                 G4double cutEn <<  99 
 96                                                << 100   G4DynamicParticle* SampleSecondary(
 97   void SampleSecondaries(std::vector<G4Dynamic << 101                                 const G4MaterialCutsCouple*,
 98         const G4MaterialCutsCouple*,           << 102                                 const G4DynamicParticle*,
 99         const G4DynamicParticle*,              << 103                                       G4double tmin,
100         G4double tmin,                         << 104                                       G4double maxEnergy);
101         G4double maxEnergy) override;          << 105 
102                                                << 106   std::vector<G4DynamicParticle*>* SampleSecondaries(
103   G4double MinPrimaryEnergy(const G4Material*, << 107                                 const G4MaterialCutsCouple*,
104                             const G4ParticleDe << 108                                 const G4DynamicParticle*,
105                             G4double) override << 109                                       G4double tmin,
106                                                << 110                                       G4double maxEnergy);
107   virtual G4double                             << 111 
108   ComputeDMicroscopicCrossSection(G4double tki << 112   virtual G4double MaxSecondaryEnergy(
109           G4double pairEnergy);                << 113         const G4DynamicParticle* dynParticle);
110                                                << 
111   inline void SetLowestKineticEnergy(G4double  << 
112                                                << 
113   inline void SetParticle(const G4ParticleDefi << 
114                                                << 
115   // hide assignment operator and copy constru << 
116   G4MuPairProductionModel & operator=          << 
117   (const G4MuPairProductionModel &right) = del << 
118   G4MuPairProductionModel(const  G4MuPairProdu << 
119                                                   114 
120 protected:                                        115 protected:
121                                                   116 
122   G4double ComputMuPairLoss(G4double Z, G4doub << 117   virtual G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
123                             G4double tmax);    << 118                         G4double kineticEnergy);
                                                   >> 119 
                                                   >> 120 //private:
                                                   >> 121 public:
                                                   >> 122 
                                                   >> 123   G4double ComputMuPairLoss(G4double Z, G4double tkin, G4double cut, G4double tmax);
124                                                   124 
125   G4double ComputeMicroscopicCrossSection(G4do    125   G4double ComputeMicroscopicCrossSection(G4double tkin,
126                                           G4do    126                                           G4double Z,
127                                           G4do    127                                           G4double cut);
128                                                   128 
129   G4double FindScaledEnergy(G4int Z, G4double  << 129   G4double ComputeDMicroscopicCrossSection(G4double tkin,
130           G4double yymin, G4double yymax);     << 130                                            G4double Z,
                                                   >> 131                                            G4double pairEnergy);
                                                   >> 132 private:
131                                                   133 
132   inline G4double MaxSecondaryEnergyForElement << 134   const G4Element* SelectRandomAtom(G4double kinEnergy, G4double dt, G4int it,
133                  G4double Z);                  << 135                               const G4MaterialCutsCouple* couple);
134                                                   136 
135   void MakeSamplingTables();                      137   void MakeSamplingTables();
136                                                   138 
137   void StoreTables() const;                    << 139   void SetCurrentElement(G4double Z);
138                                                   140 
139   G4bool RetrieveTables();                     << 141   G4double InterpolatedIntegralCrossSection(G4double dt, G4double dz,
                                                   >> 142                                             G4int iz, G4int it, G4int iy, G4double z);
140                                                   143 
141   virtual void DataCorrupted(G4int Z, G4double << 144   // hide assignment operator
142                                                << 145   G4MuPairProductionModel & operator=(const  G4MuPairProductionModel &right);
143   G4ParticleChangeForLoss* fParticleChange = n << 146   G4MuPairProductionModel(const  G4MuPairProductionModel&);
144   const G4ParticleDefinition* particle = nullp << 
145   G4NistManager* nist = nullptr;               << 
146                                                << 
147   G4double factorForCross;                     << 
148   G4double sqrte;                              << 
149   G4double particleMass = 0.0;                 << 
150   G4double z13 = 0.0;                          << 
151   G4double z23 = 0.0;                          << 
152   G4double lnZ = 0.0;                          << 
153                                                   147 
154   G4double minPairEnergy;                         148   G4double minPairEnergy;
                                                   >> 149   G4double highKinEnergy;
                                                   >> 150   G4double lowKinEnergy;
155   G4double lowestKinEnergy;                       151   G4double lowestKinEnergy;
156                                                   152 
157   G4double emin;                               << 153   G4double factorForCross;
158   G4double emax;                               << 154   G4double sqrte;
159   G4double ymin = -5.0;                        << 155   G4double particleMass;
160   G4double dy = 0.005;                         << 156   G4double currentZ;
161                                                << 157   G4double z13;
162   G4int currentZ = 0;                          << 158   G4double z23;
163   G4int nYBinPerDecade = 4;                    << 159   G4double lnZ;
164   std::size_t nbiny = 1000;                    << 160 
165   std::size_t nbine = 0;                       << 161 
166                                                << 162   const G4ParticleDefinition* particle;
167   G4bool fTableToFile = false;                 << 163 
168                                                << 164   // tables for sampling
169   // static members                            << 165   G4int nzdat;
170   static const G4int NZDATPAIR = 5;            << 166   G4int ntdat;
171   static const G4int NINTPAIR = 8;             << 167   G4int nbiny;
172   static const G4int ZDATPAIR[NZDATPAIR];      << 168   size_t nmaxElements;
173   static const G4double xgi[NINTPAIR];         << 169   static G4double zdat[5],adat[5],tdat[8],xgi[8],wgi[8];
174   static const G4double wgi[NINTPAIR];         << 170   G4double ya[1001],proba[5][8][1001];
175                                                << 171 
176 private:                                       << 172   G4double ymin;
                                                   >> 173   G4double ymax;
                                                   >> 174   G4double dy;
177                                                   175 
178   G4ParticleDefinition* theElectron;           << 176   G4bool  samplingTablesAreFilled;
179   G4ParticleDefinition* thePositron;           << 177   std::vector<G4double>   partialSum;
180   G4String dataName{""};                       << 
181 };                                                178 };
182                                                   179 
183 //....oooOO0OOooo........oooOO0OOooo........oo << 180 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
184                                                   181 
185 inline void G4MuPairProductionModel::SetLowest << 182 inline
                                                   >> 183 G4double G4MuPairProductionModel::MaxSecondaryEnergy(
                                                   >> 184          const G4DynamicParticle* dynParticle)
186 {                                                 185 {
187   lowestKinEnergy = e;                         << 186   G4double e = dynParticle->GetKineticEnergy();
                                                   >> 187   G4double maxPairEnergy = e + particleMass*(1.0 - 0.75*sqrte*z13);
                                                   >> 188   return maxPairEnergy;
188 }                                                 189 }
189                                                   190 
190 //....oooOO0OOooo........oooOO0OOooo........oo << 191 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
191                                                   192 
192 inline                                            193 inline
193 void G4MuPairProductionModel::SetParticle(cons << 194 G4double G4MuPairProductionModel::MaxSecondaryEnergy(
                                                   >> 195                                  const G4ParticleDefinition*,
                                                   >> 196                    G4double kineticEnergy)
194 {                                                 197 {
195   if(nullptr == particle) {                    << 198   G4double maxPairEnergy = kineticEnergy + particleMass*(1.0 - 0.75*sqrte*z13);
196     particle = p;                              << 199   return maxPairEnergy;
197     particleMass = particle->GetPDGMass();     << 
198   }                                            << 
199 }                                                 200 }
                                                   >> 201 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
200                                                   202 
201 //....oooOO0OOooo........oooOO0OOooo........oo << 203 inline
202                                                << 204 void G4MuPairProductionModel::SetCurrentElement(G4double Z)
203 inline G4double                                << 
204 G4MuPairProductionModel::MaxSecondaryEnergyFor << 
205                   G4double ZZ)                 << 
206 {                                                 205 {
207   G4int Z = G4lrint(ZZ);                       << 
208   if(Z != currentZ) {                             206   if(Z != currentZ) {
209     currentZ = Z;                                 207     currentZ = Z;
210     z13 = nist->GetZ13(Z);                     << 208     z13 = pow(Z,0.333333333);
211     z23 = z13*z13;                                209     z23 = z13*z13;
212     lnZ = nist->GetLOGZ(Z);                    << 210     lnZ = log(Z);
213   }                                               211   }
214   return kineticEnergy + particleMass*(1.0 - 0 << 
215 }                                                 212 }
216                                                   213 
217 //....oooOO0OOooo........oooOO0OOooo........oo << 214 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
                                                   >> 215 
                                                   >> 216 inline
                                                   >> 217 G4double G4MuPairProductionModel::InterpolatedIntegralCrossSection(G4double dt, G4double dz,
                                                   >> 218          G4int iz, G4int it, G4int iy, G4double z)
                                                   >> 219 {
                                                   >> 220   G4double fac =  1./(zdat[iz]  *(zdat[iz]  +1.));
                                                   >> 221   G4double fac1 = 1./(zdat[iz-1]*(zdat[iz-1]+1.));
                                                   >> 222   G4double f0 = fac1*proba[iz-1][it-1][iy] + 
                                                   >> 223                 (fac*proba[iz][it-1][iy]-fac1*proba[iz-1][it-1][iy])*dz;
                                                   >> 224   G4double f1 = fac1*proba[iz-1][it  ][iy] + 
                                                   >> 225                 (fac*proba[iz][it  ][iy]-fac1*proba[iz-1][it  ][iy])*dz;
                                                   >> 226   return (f0 + (f1-f0)*dt)*z*(z+1.);
                                                   >> 227 }
                                                   >> 228 
                                                   >> 229 
                                                   >> 230 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
218                                                   231 
219 #endif                                            232 #endif
220                                                   233