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25 // 22 //
>> 23 // $Id: G4MuBetheBlochModel.hh,v 1.8 2003/07/21 12:52:35 vnivanch Exp $
>> 24 // GEANT4 tag $Name: geant4-06-00-patch-01 $
26 // 25 //
27 // ------------------------------------------- 26 // -------------------------------------------------------------------
28 // 27 //
29 // GEANT4 Class header file 28 // GEANT4 Class header file
30 // 29 //
31 // 30 //
32 // File name: G4MuBetheBlochModel 31 // File name: G4MuBetheBlochModel
33 // 32 //
34 // Author: Vladimir Ivanchenko on base 33 // Author: Vladimir Ivanchenko on base of Laszlo Urban code
35 // 34 //
36 // Creation date: 09.08.2002 35 // Creation date: 09.08.2002
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 // 24-01-03 Make models region aware (V.Ivanch 40 // 24-01-03 Make models region aware (V.Ivanchenko)
42 // 13-02-03 Add Nama (V.Ivanchenko) 41 // 13-02-03 Add Nama (V.Ivanchenko)
43 // 10-02-04 Calculation of radiative correctio <<
44 // 08-04-05 Major optimisation of internal int <<
45 // 12-04-05 Add usage of G4EmCorrections (V.Iv <<
46 // 13-02-06 ComputeCrossSectionPerElectron, Co <<
47 // 42 //
48 43
49 // 44 //
50 // Class Description: 45 // Class Description:
51 // 46 //
52 // Implementation of Bethe-Bloch model of ener 47 // Implementation of Bethe-Bloch model of energy loss and
53 // delta-electron production by heavy charged 48 // delta-electron production by heavy charged particles
54 49
55 // ------------------------------------------- 50 // -------------------------------------------------------------------
56 // 51 //
57 52
58 #ifndef G4MuBetheBlochModel_h 53 #ifndef G4MuBetheBlochModel_h
59 #define G4MuBetheBlochModel_h 1 54 #define G4MuBetheBlochModel_h 1
60 55
61 #include "G4VEmModel.hh" 56 #include "G4VEmModel.hh"
62 57
63 class G4ParticleChangeForLoss; <<
64 class G4EmCorrections; <<
65 <<
66 class G4MuBetheBlochModel : public G4VEmModel 58 class G4MuBetheBlochModel : public G4VEmModel
67 { 59 {
68 60
69 public: 61 public:
70 62
71 explicit G4MuBetheBlochModel(const G4Particl << 63 G4MuBetheBlochModel(const G4ParticleDefinition* p = 0, const G4String& nam = "MuBetheBloch");
72 const G4String& << 64
>> 65 ~G4MuBetheBlochModel();
>> 66
>> 67 void Initialise(const G4ParticleDefinition*, const G4DataVector&);
>> 68
>> 69 G4double HighEnergyLimit(const G4ParticleDefinition* p);
73 70
74 ~G4MuBetheBlochModel() override = default; << 71 G4double LowEnergyLimit(const G4ParticleDefinition* p);
75 72
76 void Initialise(const G4ParticleDefinition*, << 73 void SetHighEnergyLimit(G4double e) {highKinEnergy = e;};
>> 74
>> 75 void SetLowEnergyLimit(G4double e) {lowKinEnergy = e;};
77 76
78 G4double MinEnergyCut(const G4ParticleDefini 77 G4double MinEnergyCut(const G4ParticleDefinition*,
79 const G4MaterialCutsCouple*) override; << 78 const G4MaterialCutsCouple*);
80 << 79
81 G4double ComputeCrossSectionPerElectron( << 80 G4bool IsInCharge(const G4ParticleDefinition*);
82 const G4ParticleDefinition*, << 81
83 G4double kineticEnergy, << 82 virtual G4double ComputeDEDX(const G4MaterialCutsCouple*,
84 G4double cutEnergy, << 83 const G4ParticleDefinition*,
85 G4double maxEnergy); << 84 G4double kineticEnergy,
86 << 85 G4double cutEnergy);
87 G4double ComputeCrossSectionPerAtom( << 86
88 const G4ParticleDefinition*, << 87 virtual G4double CrossSection(const G4MaterialCutsCouple*,
89 G4double kineticEnergy, << 88 const G4ParticleDefinition*,
90 G4double Z, G4double A, << 89 G4double kineticEnergy,
91 G4double cutEnergy, << 90 G4double cutEnergy,
92 G4double maxEnergy) override; << 91 G4double maxEnergy);
93 << 92
94 G4double CrossSectionPerVolume(const G4Mater << 93 virtual G4DynamicParticle* SampleSecondary(
95 const G4ParticleDefinition*, << 94 const G4MaterialCutsCouple*,
96 G4double kineticEnergy, << 95 const G4DynamicParticle*,
97 G4double cutEnergy, << 96 G4double tmin,
98 G4double maxEnergy) override; << 97 G4double maxEnergy);
99 << 98
100 G4double ComputeDEDXPerVolume(const G4Materi << 99 virtual std::vector<G4DynamicParticle*>* SampleSecondaries(
101 const G4Partic << 100 const G4MaterialCutsCouple*,
102 G4double kinet << 101 const G4DynamicParticle*,
103 G4double cutEn << 102 G4double tmin,
104 << 103 G4double maxEnergy);
105 void SampleSecondaries(std::vector<G4Dynamic << 104
106 const G4MaterialCutsCouple*, << 105 G4double MaxSecondaryEnergy(const G4DynamicParticle*);
107 const G4DynamicParticle*, <<
108 G4double tmin, <<
109 G4double maxEnergy) override; <<
110 <<
111 // hide assignment operator <<
112 G4MuBetheBlochModel & operator=(const G4MuB <<
113 G4MuBetheBlochModel(const G4MuBetheBlochMod <<
114 106
115 protected: 107 protected:
116 108
117 G4double MaxSecondaryEnergy(const G4Particle 109 G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
118 G4double kinEner << 110 G4double kinEnergy);
119 111
120 private: 112 private:
121 113
122 void SetParticle(const G4ParticleDefinition* 114 void SetParticle(const G4ParticleDefinition* p);
123 115
124 const G4ParticleDefinition* particle = nullp << 116 G4double CrossSectionPerAtom(G4double Z,
125 G4ParticleDefinition* theElectron = nu << 117 G4double kineticEnergy,
126 G4ParticleChangeForLoss* fParticleChange << 118 G4double tmin,
127 G4EmCorrections* corr = nullptr; << 119 G4double tmax,
128 << 120 G4double tmaxSecondary);
129 G4double limitRadCorrection; << 121
130 G4double limitKinEnergy; << 122 G4double DifCrossSectionPerAtom(G4double kineticEnergy,
131 G4double logLimitKinEnergy; << 123 G4double knockonEnergy,
132 G4double mass = 1.0; << 124 G4double tmaxSecondary);
133 G4double massSquare = 1.0; << 125
134 G4double ratio = 1.0; << 126 // hide assignment operator
>> 127 G4MuBetheBlochModel & operator=(const G4MuBetheBlochModel &right);
>> 128 G4MuBetheBlochModel(const G4MuBetheBlochModel&);
>> 129
>> 130 const G4ParticleDefinition* particle;
>> 131 G4double mass;
>> 132 G4double chargeSquare;
>> 133 G4double ratio;
>> 134 G4double highKinEnergy;
>> 135 G4double lowKinEnergy;
135 G4double twoln10; 136 G4double twoln10;
136 G4double alphaprime; << 137 G4double bg2lim;
137 static G4double xgi[8],wgi[8]; << 138 G4double taulim;
>> 139 G4double qc;
138 }; 140 };
139 141
140 //....oooOO0OOooo........oooOO0OOooo........oo << 142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 143
>> 144 inline G4double G4MuBetheBlochModel::MaxSecondaryEnergy(
>> 145 const G4ParticleDefinition*,
>> 146 G4double kinEnergy)
>> 147 {
>> 148
>> 149 G4double gamma= kinEnergy/mass + 1.0;
>> 150 G4double tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
>> 151 (1. + 2.0*gamma*ratio + ratio*ratio);
>> 152
>> 153 return tmax;
>> 154 }
>> 155
>> 156 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 157
>> 158 inline G4double G4MuBetheBlochModel::MaxSecondaryEnergy(const G4DynamicParticle* dp)
>> 159 {
>> 160
>> 161 G4double kineticEnergy = dp->GetKineticEnergy();
>> 162 G4double gamma= kineticEnergy/mass + 1.0;
>> 163 G4double tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
>> 164 (1. + 2.0*gamma*ratio + ratio*ratio);
>> 165
>> 166 return tmax;
>> 167 }
>> 168
>> 169 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
141 170
142 #endif 171 #endif
143 172