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25 // 22 //
>> 23 // $Id: G4MuBetheBlochModel.hh,v 1.14 2005/04/12 13:31:16 vnivanch Exp $
>> 24 // GEANT4 tag $Name: geant4-07-01-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 << 42 // 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.Ivanchenko)
44 // 08-04-05 Major optimisation of internal int 43 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
45 // 12-04-05 Add usage of G4EmCorrections (V.Iv 44 // 12-04-05 Add usage of G4EmCorrections (V.Ivanchenko)
46 // 13-02-06 ComputeCrossSectionPerElectron, Co <<
47 // 45 //
48 46
49 // 47 //
50 // Class Description: 48 // Class Description:
51 // 49 //
52 // Implementation of Bethe-Bloch model of ener 50 // Implementation of Bethe-Bloch model of energy loss and
53 // delta-electron production by heavy charged 51 // delta-electron production by heavy charged particles
54 52
55 // ------------------------------------------- 53 // -------------------------------------------------------------------
56 // 54 //
57 55
58 #ifndef G4MuBetheBlochModel_h 56 #ifndef G4MuBetheBlochModel_h
59 #define G4MuBetheBlochModel_h 1 57 #define G4MuBetheBlochModel_h 1
60 58
61 #include "G4VEmModel.hh" 59 #include "G4VEmModel.hh"
62 60
63 class G4ParticleChangeForLoss; 61 class G4ParticleChangeForLoss;
64 class G4EmCorrections; 62 class G4EmCorrections;
65 63
66 class G4MuBetheBlochModel : public G4VEmModel 64 class G4MuBetheBlochModel : public G4VEmModel
67 { 65 {
68 66
69 public: 67 public:
70 68
71 explicit G4MuBetheBlochModel(const G4Particl << 69 G4MuBetheBlochModel(const G4ParticleDefinition* p = 0, const G4String& nam = "MuBetheBloch");
72 const G4String& <<
73 70
74 ~G4MuBetheBlochModel() override = default; << 71 virtual ~G4MuBetheBlochModel();
75 72
76 void Initialise(const G4ParticleDefinition*, << 73 void Initialise(const G4ParticleDefinition*, const G4DataVector&);
77 74
78 G4double MinEnergyCut(const G4ParticleDefini 75 G4double MinEnergyCut(const G4ParticleDefinition*,
79 const G4MaterialCutsCouple*) override; << 76 const G4MaterialCutsCouple*);
80 <<
81 G4double ComputeCrossSectionPerElectron( <<
82 const G4ParticleDefinition*, <<
83 G4double kineticEnergy, <<
84 G4double cutEnergy, <<
85 G4double maxEnergy); <<
86 <<
87 G4double ComputeCrossSectionPerAtom( <<
88 const G4ParticleDefinition*, <<
89 G4double kineticEnergy, <<
90 G4double Z, G4double A, <<
91 G4double cutEnergy, <<
92 G4double maxEnergy) override; <<
93 <<
94 G4double CrossSectionPerVolume(const G4Mater <<
95 const G4ParticleDefinition*, <<
96 G4double kineticEnergy, <<
97 G4double cutEnergy, <<
98 G4double maxEnergy) override; <<
99 <<
100 G4double ComputeDEDXPerVolume(const G4Materi <<
101 const G4Partic <<
102 G4double kinet <<
103 G4double cutEn <<
104 <<
105 void SampleSecondaries(std::vector<G4Dynamic <<
106 const G4MaterialCutsCouple*, <<
107 const G4DynamicParticle*, <<
108 G4double tmin, <<
109 G4double maxEnergy) override; <<
110 77
111 // hide assignment operator << 78 virtual G4double ComputeDEDXPerVolume(
112 G4MuBetheBlochModel & operator=(const G4MuB << 79 const G4Material*,
113 G4MuBetheBlochModel(const G4MuBetheBlochMod << 80 const G4ParticleDefinition*,
>> 81 G4double kineticEnergy,
>> 82 G4double cutEnergy);
>> 83
>> 84 virtual G4double CrossSectionPerVolume(
>> 85 const G4Material*,
>> 86 const G4ParticleDefinition*,
>> 87 G4double kineticEnergy,
>> 88 G4double cutEnergy,
>> 89 G4double maxEnergy);
>> 90
>> 91 virtual std::vector<G4DynamicParticle*>* SampleSecondaries(
>> 92 const G4MaterialCutsCouple*,
>> 93 const G4DynamicParticle*,
>> 94 G4double tmin,
>> 95 G4double maxEnergy);
114 96
115 protected: 97 protected:
116 98
117 G4double MaxSecondaryEnergy(const G4Particle 99 G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
118 G4double kinEner << 100 G4double kinEnergy);
119 101
120 private: 102 private:
121 103
122 void SetParticle(const G4ParticleDefinition* 104 void SetParticle(const G4ParticleDefinition* p);
123 105
124 const G4ParticleDefinition* particle = nullp << 106 // hide assignment operator
125 G4ParticleDefinition* theElectron = nu << 107 G4MuBetheBlochModel & operator=(const G4MuBetheBlochModel &right);
126 G4ParticleChangeForLoss* fParticleChange << 108 G4MuBetheBlochModel(const G4MuBetheBlochModel&);
127 G4EmCorrections* corr = nullptr; << 109
>> 110 const G4ParticleDefinition* particle;
>> 111 G4ParticleDefinition* theElectron;
>> 112 G4ParticleChangeForLoss* fParticleChange;
>> 113 G4EmCorrections* corr;
128 114
129 G4double limitRadCorrection; <<
130 G4double limitKinEnergy; 115 G4double limitKinEnergy;
131 G4double logLimitKinEnergy; 116 G4double logLimitKinEnergy;
132 G4double mass = 1.0; << 117 G4double mass;
133 G4double massSquare = 1.0; << 118 G4double massSquare;
134 G4double ratio = 1.0; << 119 G4double ratio;
135 G4double twoln10; 120 G4double twoln10;
>> 121 G4double bg2lim;
>> 122 G4double taulim;
136 G4double alphaprime; 123 G4double alphaprime;
137 static G4double xgi[8],wgi[8]; 124 static G4double xgi[8],wgi[8];
138 }; 125 };
139 126
140 //....oooOO0OOooo........oooOO0OOooo........oo << 127 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 128
>> 129 inline G4double G4MuBetheBlochModel::MaxSecondaryEnergy(
>> 130 const G4ParticleDefinition*,
>> 131 G4double kinEnergy)
>> 132 {
>> 133 G4double tau = kinEnergy/mass;
>> 134 G4double tmax = 2.0*electron_mass_c2*tau*(tau + 2.) /
>> 135 (1. + 2.0*(tau + 1.)*ratio + ratio*ratio);
>> 136 return tmax;
>> 137 }
>> 138
>> 139 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
141 140
142 #endif 141 #endif
143 142