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26 // 26 //
>> 27 // $Id: G4GammaConversionToMuons.hh,v 1.2 2006/06/29 19:32:18 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-09-02 $
>> 29 //
27 // ------------ G4GammaConversionToMuo 30 // ------------ G4GammaConversionToMuons physics process ------
28 // by H.Burkhardt, S. Kelner and R. Ko 31 // by H.Burkhardt, S. Kelner and R. Kokoulin, April 2002
29 // ------------------------------------------- 32 // -----------------------------------------------------------------------------
30 // 33 //
31 // 05-08-04: suppression of .icc file (mma) 34 // 05-08-04: suppression of .icc file (mma)
32 // 13-08-04, public ComputeCrossSectionPerAtom << 35 // 13-08-04, public ComputeCrossSectionPerAtom() and ComputeMeanFreePath() (mma)
33 // 36 //
34 // class description 37 // class description
35 // 38 //
36 // gamma ---> mu+ mu- 39 // gamma ---> mu+ mu-
37 // inherit from G4VDiscreteProcess 40 // inherit from G4VDiscreteProcess
38 // 41 //
39 42
40 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
41 44
42 #ifndef G4GammaConversionToMuons_h 45 #ifndef G4GammaConversionToMuons_h
43 #define G4GammaConversionToMuons_h 1 46 #define G4GammaConversionToMuons_h 1
44 47
45 #include "G4ios.hh" 48 #include "G4ios.hh"
46 #include "globals.hh" 49 #include "globals.hh"
47 #include "Randomize.hh" 50 #include "Randomize.hh"
48 #include "G4VDiscreteProcess.hh" 51 #include "G4VDiscreteProcess.hh"
49 #include "G4PhysicsTable.hh" 52 #include "G4PhysicsTable.hh"
50 #include "G4PhysicsLogVector.hh" 53 #include "G4PhysicsLogVector.hh"
51 #include "G4ParticleDefinition.hh" <<
52 #include "G4Element.hh" 54 #include "G4Element.hh"
>> 55 #include "G4Gamma.hh"
>> 56 #include "G4Electron.hh"
>> 57 #include "G4Positron.hh"
53 #include "G4Step.hh" 58 #include "G4Step.hh"
54 #include <vector> <<
55 59
56 //....oooOO0OOooo........oooOO0OOooo........oo 60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 61
58 class G4LossTableManager; <<
59 class G4BetheHeitler5DModel; <<
60 <<
61 class G4GammaConversionToMuons : public G4VDis 62 class G4GammaConversionToMuons : public G4VDiscreteProcess
>> 63
62 { 64 {
63 public: // with description << 65 public: // with description
64 66
65 explicit G4GammaConversionToMuons( << 67 G4GammaConversionToMuons(const G4String& processName ="GammaToMuPair",
66 const G4String& proces << 68 G4ProcessType type = fElectromagnetic);
67 G4ProcessType type = f <<
68 69
69 ~G4GammaConversionToMuons() override; << 70 ~G4GammaConversionToMuons();
70 71
71 G4bool IsApplicable(const G4ParticleDefiniti << 72 G4bool IsApplicable(const G4ParticleDefinition&);
72 // true for Gamma only. 73 // true for Gamma only.
73 74
74 void BuildPhysicsTable(const G4ParticleDefin << 75 void BuildPhysicsTable(const G4ParticleDefinition&);
75 // here dummy, the total cross section 76 // here dummy, the total cross section parametrization is used rather
76 // than tables, just calling PrintInfo 77 // than tables, just calling PrintInfoDefinition
77 78
78 void PrintInfoDefinition(); << 79 void PrintInfoDefinition();
79 // Print few lines of informations abou 80 // Print few lines of informations about the process: validity range,
80 // origine ..etc.. 81 // origine ..etc..
81 // Invoked by BuildThePhysicsTable(). 82 // Invoked by BuildThePhysicsTable().
82 83
83 void SetCrossSecFactor(G4double fac); << 84 void SetCrossSecFactor(G4double fac);
84 // Set the factor to artificially incre 85 // Set the factor to artificially increase the crossSection (default 1)
85 86
86 inline G4double GetCrossSecFactor() const { << 87 G4double GetCrossSecFactor() { return CrossSecFactor;}
87 // Get the factor to artificially incre 88 // Get the factor to artificially increase the cross section
88 89
89 G4double GetMeanFreePath(const G4Track& aTra << 90 G4double GetMeanFreePath(const G4Track& aTrack,
90 G4double previousSt << 91 G4double previousStepSize,
91 G4ForceCondition* c << 92 G4ForceCondition* condition);
92 // It returns the MeanFreePath of the p 93 // It returns the MeanFreePath of the process for the current track :
93 // (energy, material) 94 // (energy, material)
94 // The previousStepSize and G4ForceCond 95 // The previousStepSize and G4ForceCondition* are not used.
95 // This function overloads a virtual fu 96 // This function overloads a virtual function of the base class.
96 // It is invoked by the ProcessManager 97 // It is invoked by the ProcessManager of the Particle.
97 98
98 G4double GetCrossSectionPerAtom(const G4Dyna << 99 G4double GetCrossSectionPerAtom(const G4DynamicParticle* aDynamicGamma,
99 const G4Elem << 100 G4Element* anElement);
100 // It returns the total CrossSectionPer 101 // It returns the total CrossSectionPerAtom of the process,
101 // for the current DynamicGamma (energy 102 // for the current DynamicGamma (energy), in anElement.
102 103
103 G4VParticleChange* PostStepDoIt(const G4Trac << 104 G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
104 const G4Step& aStep) override; << 105 const G4Step& aStep);
105 // It computes the final state of the p 106 // It computes the final state of the process (at end of step),
106 // returned as a ParticleChange object. 107 // returned as a ParticleChange object.
107 // This function overloads a virtual fu 108 // This function overloads a virtual function of the base class.
108 // It is invoked by the ProcessManager 109 // It is invoked by the ProcessManager of the Particle.
109 110
110 G4double ComputeCrossSectionPerAtom(G4double << 111 virtual
>> 112 G4double ComputeCrossSectionPerAtom(G4double GammaEnergy,
>> 113 G4double AtomicZ,G4double AtomicA);
>> 114
>> 115 G4double ComputeMeanFreePath (G4double GammaEnergy,
>> 116 G4Material* aMaterial);
>> 117
>> 118 private:
>> 119
>> 120 G4Element* SelectRandomAtom(const G4DynamicParticle* aDynamicGamma,
>> 121 G4Material* aMaterial);
>> 122
>> 123 private:
>> 124
>> 125 // hide assignment operator as private
>> 126 G4GammaConversionToMuons& operator=(const G4GammaConversionToMuons &right);
>> 127 G4GammaConversionToMuons(const G4GammaConversionToMuons& );
>> 128
>> 129 private:
>> 130
>> 131 G4double LowestEnergyLimit ; // low energy limit of the tables
>> 132 G4double HighestEnergyLimit ; // high energy limit of the tables
>> 133
>> 134 G4double fminimalEnergy; // minimalEnergy of produced particles
111 135
112 G4double ComputeMeanFreePath (G4double Gamma << 136 G4double MeanFreePath; // actual MeanFreePath (current medium)
113 const G4Materi << 137 G4double CrossSecFactor; // factor to artificially increase
>> 138 // the cross section
114 139
115 // hide assignment operator as private <<
116 G4GammaConversionToMuons& <<
117 operator=(const G4GammaConversionToMuons &ri <<
118 G4GammaConversionToMuons(const G4GammaConver <<
119 <<
120 private: <<
121 <<
122 const G4Element* SelectRandomAtom(const G4Dy <<
123 const G4Ma <<
124 <<
125 G4double Mmuon; <<
126 G4double Rc; <<
127 G4double LimitEnergy; // energy lim <<
128 G4double LowestEnergyLimit; // low energ <<
129 G4double HighestEnergyLimit; // high energ <<
130 G4double Energy5DLimit = 0.0; // high energ <<
131 <<
132 G4double MeanFreePath = DBL_MAX;// actual Me <<
133 G4double CrossSecFactor = 1.0; // factor to <<
134 // the cross <<
135 <<
136 G4LossTableManager* fManager; <<
137 G4BetheHeitler5DModel* f5Dmodel = nullptr; <<
138 const G4ParticleDefinition* theGamma; <<
139 const G4ParticleDefinition* theMuonPlus; <<
140 const G4ParticleDefinition* theMuonMinus; <<
141 std::vector<G4double> temp; <<
142 }; 140 };
143 141
144 //....oooOO0OOooo........oooOO0OOooo........oo 142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
145 143
146 #endif 144 #endif
147 145
148 146