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25 // 22 //
>> 23 // $Id: G4hIonisation.hh,v 1.25 2004/01/21 18:05:22 vnivanch Exp $
>> 24 // GEANT4 tag $Name: geant4-06-01 $
26 // 25 //
27 // ------------------------------------------- 26 // -------------------------------------------------------------------
28 // 27 //
29 // GEANT4 Class header file 28 // GEANT4 Class header file
30 // 29 //
31 // 30 //
32 // File name: G4hIonisation 31 // File name: G4hIonisation
33 // 32 //
34 // Author: Laszlo Urban 33 // Author: Laszlo Urban
35 // 34 //
36 // Creation date: 30.05.1997 35 // Creation date: 30.05.1997
37 // 36 //
38 // Modifications: 37 // Modifications:
39 // 38 //
40 // corrected by L.Urban on 24/09/97 39 // corrected by L.Urban on 24/09/97
41 // corrected by L.Urban on 13/01/98 40 // corrected by L.Urban on 13/01/98
42 // bugs fixed by L.Urban on 02/02/99 41 // bugs fixed by L.Urban on 02/02/99
43 // 10/02/00 modifications , new e.m. structure 42 // 10/02/00 modifications , new e.m. structure, L.Urban
44 // 10-08-01 new methods Store/Retrieve Physics 43 // 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
45 // 14-08-01 new function ComputeRestrictedMean 44 // 14-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma)
46 // 19-09-01 come back to previous process name 45 // 19-09-01 come back to previous process name "hIoni"
47 // 29-10-01 all static functions no more inlin 46 // 29-10-01 all static functions no more inlined
48 // 07-01-02 new design of em processes (V.Ivan 47 // 07-01-02 new design of em processes (V.Ivanchenko)
49 // 26-12-02 secondary production moved to deri 48 // 26-12-02 secondary production moved to derived classes (VI)
50 // 24-01-03 Make models region aware (V.Ivanch 49 // 24-01-03 Make models region aware (V.Ivanchenko)
51 // 05-02-03 Fix compilation warnings (V.Ivanch 50 // 05-02-03 Fix compilation warnings (V.Ivanchenko)
52 // 13-02-03 SubCutoff regime is assigned to a 51 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
53 // 15-02-03 Add control on delta pointer (V.Iv 52 // 15-02-03 Add control on delta pointer (V.Ivanchenko)
54 // 23-05-03 Add fluctuation model as a member 53 // 23-05-03 Add fluctuation model as a member function (V.Ivanchenko)
55 // 03-06-03 Fix initialisation problem for STD 54 // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko)
56 // 16-06-03 ShortLived are not applicable any 55 // 16-06-03 ShortLived are not applicable any more (V.Ivanchenko)
57 // 08-08-03 STD substitute standard (V.Ivanch 56 // 08-08-03 STD substitute standard (V.Ivanchenko)
58 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossPro 57 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
59 // 21-01-04 Migrade to G4ParticleChangeForLoss 58 // 21-01-04 Migrade to G4ParticleChangeForLoss (V.Ivanchenko)
60 // 08-11-04 Migration to new interface of Stor <<
61 // 08-04-05 Major optimisation of internal int <<
62 // 11-04-04 Move MaxSecondaryEnergy to models <<
63 // 12-09-08 Removed CorrectionsAlongStep (VI) <<
64 // 59 //
65 // Class Description: 60 // Class Description:
66 // 61 //
67 // This class manages the ionisation process f 62 // This class manages the ionisation process for hadrons.
68 // it inherites from G4VContinuousDiscreteProc 63 // it inherites from G4VContinuousDiscreteProcess via G4VEnergyLoss.
69 // 64 //
70 65
71 // ------------------------------------------- 66 // -------------------------------------------------------------------
72 // 67 //
73 68
74 #ifndef G4hIonisation_h 69 #ifndef G4hIonisation_h
75 #define G4hIonisation_h 1 70 #define G4hIonisation_h 1
76 71
77 #include "G4VEnergyLossProcess.hh" 72 #include "G4VEnergyLossProcess.hh"
78 #include "G4Electron.hh" 73 #include "G4Electron.hh"
79 #include "G4Positron.hh" 74 #include "G4Positron.hh"
80 #include "globals.hh" 75 #include "globals.hh"
81 76
82 class G4Material; 77 class G4Material;
>> 78 class G4VEmFluctuationModel;
83 79
84 class G4hIonisation : public G4VEnergyLossProc 80 class G4hIonisation : public G4VEnergyLossProcess
85 { 81 {
86 82
87 public: 83 public:
88 84
89 explicit G4hIonisation(const G4String& name << 85 G4hIonisation(const G4String& name = "hIoni");
90 86
91 ~G4hIonisation() override = default; << 87 ~G4hIonisation();
92 88
93 G4bool IsApplicable(const G4ParticleDefiniti << 89 G4bool IsApplicable(const G4ParticleDefinition& p);
94 90
95 G4double MinPrimaryEnergy(const G4ParticleDe << 91 virtual G4double MinPrimaryEnergy(const G4ParticleDefinition* p,
96 const G4Material*, G4double cut) fin << 92 const G4Material*, G4double cut);
97 93
98 // print documentation in html format << 94 virtual std::vector<G4Track*>* SecondariesAlongStep(
99 void ProcessDescription(std::ostream&) const << 95 const G4Step&,
>> 96 G4double&,
>> 97 G4double&,
>> 98 G4double&);
100 99
101 // hide assignment operator << 100 virtual void SecondariesPostStep(
102 G4hIonisation & operator=(const G4hIonisatio << 101 G4VEmModel*,
103 G4hIonisation(const G4hIonisation&) = delete << 102 const G4MaterialCutsCouple*,
>> 103 const G4DynamicParticle*,
>> 104 G4double&,
>> 105 G4double&);
>> 106
>> 107 void SetSubCutoff(G4bool val);
>> 108
>> 109 void PrintInfoDefinition();
>> 110 // Print out of the class parameters
104 111
105 protected: 112 protected:
106 113
107 void InitialiseEnergyLossProcess(const G4Par << 114 virtual const G4ParticleDefinition* DefineBaseParticle(const G4ParticleDefinition* p);
108 const G4ParticleDefinition*) overri << 115
>> 116 virtual G4double MaxSecondaryEnergy(const G4DynamicParticle* dynParticle);
109 117
110 private: 118 private:
111 119
112 G4bool isInitialised = false; << 120 void InitialiseProcess();
113 G4double mass = 0.0; << 121
114 G4double ratio = 0.0; << 122 // hide assignment operator
115 G4double eth; << 123 G4hIonisation & operator=(const G4hIonisation &right);
>> 124 G4hIonisation(const G4hIonisation&);
>> 125
>> 126 G4double mass;
>> 127 G4double ratio;
>> 128
>> 129 const G4ParticleDefinition* theParticle;
>> 130 const G4ParticleDefinition* theBaseParticle;
>> 131 G4VEmFluctuationModel* flucModel;
>> 132
>> 133 G4bool subCutoff;
>> 134 G4bool isInitialised;
116 }; 135 };
>> 136
>> 137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 138 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 139
>> 140 inline G4bool G4hIonisation::IsApplicable(const G4ParticleDefinition& p)
>> 141 {
>> 142 return (p.GetPDGCharge() != 0.0 &&
>> 143 p.GetPDGMass() > 10.0*MeV &&
>> 144 !p.IsShortLived());
>> 145 }
>> 146
>> 147 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 148
>> 149 inline G4double G4hIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
>> 150 const G4Material*,
>> 151 G4double cut)
>> 152 {
>> 153 G4double x = 0.5*cut/electron_mass_c2;
>> 154 G4double y = electron_mass_c2/mass;
>> 155 G4double g = x*y + sqrt((1. + x)*(1. + x*y*y));
>> 156 return mass*(g - 1.0);
>> 157 }
>> 158
>> 159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 160
>> 161 inline G4double G4hIonisation::MaxSecondaryEnergy(const G4DynamicParticle* dynParticle)
>> 162 {
>> 163 G4double gamma= dynParticle->GetKineticEnergy()/mass + 1.0;
>> 164 G4double tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
>> 165 (1. + 2.0*gamma*ratio + ratio*ratio);
>> 166
>> 167 return tmax;
>> 168 }
>> 169
>> 170 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 171
>> 172 #include "G4VSubCutoffProcessor.hh"
>> 173
>> 174 inline std::vector<G4Track*>* G4hIonisation::SecondariesAlongStep(
>> 175 const G4Step& step,
>> 176 G4double& tmax,
>> 177 G4double& eloss,
>> 178 G4double& kinEnergy)
>> 179 {
>> 180 std::vector<G4Track*>* newp = 0;
>> 181 if(subCutoff) {
>> 182 G4VSubCutoffProcessor* sp = SubCutoffProcessor(CurrentMaterialCutsCoupleIndex());
>> 183 if (sp) {
>> 184 G4VEmModel* model = SelectModel(kinEnergy);
>> 185 newp = sp->SampleSecondaries(step,tmax,eloss,model);
>> 186 }
>> 187 }
>> 188 return newp;
>> 189 }
>> 190
>> 191 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 192
>> 193 #include "G4VEmModel.hh"
>> 194
>> 195 inline void G4hIonisation::SecondariesPostStep(
>> 196 G4VEmModel* model,
>> 197 const G4MaterialCutsCouple* couple,
>> 198 const G4DynamicParticle* dp,
>> 199 G4double& tcut,
>> 200 G4double& kinEnergy)
>> 201 {
>> 202 G4DynamicParticle* delta = model->SampleSecondary(couple, dp, tcut, kinEnergy);
>> 203 if (delta) {
>> 204 fParticleChange.SetNumberOfSecondaries(1);
>> 205 fParticleChange.AddSecondary(delta);
>> 206 G4ThreeVector finalP = dp->GetMomentum();
>> 207 kinEnergy -= delta->GetKineticEnergy();
>> 208 finalP -= delta->GetMomentum();
>> 209 finalP = finalP.unit();
>> 210 fParticleChange.SetProposedMomentumDirection(finalP);
>> 211 }
>> 212 }
117 213
118 //....oooOO0OOooo........oooOO0OOooo........oo 214 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
119 215
120 #endif 216 #endif
121 217