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26 // 26 //
>> 27 // $Id: G4GammaConversionToMuons.hh 66996 2013-01-29 14:50:52Z gcosmo $
>> 28 //
27 // ------------ G4GammaConversionToMuo 29 // ------------ G4GammaConversionToMuons physics process ------
28 // by H.Burkhardt, S. Kelner and R. Ko 30 // by H.Burkhardt, S. Kelner and R. Kokoulin, April 2002
29 // ------------------------------------------- 31 // -----------------------------------------------------------------------------
30 // 32 //
31 // 05-08-04: suppression of .icc file (mma) 33 // 05-08-04: suppression of .icc file (mma)
32 // 13-08-04, public ComputeCrossSectionPerAtom << 34 // 13-08-04, public ComputeCrossSectionPerAtom() and ComputeMeanFreePath() (mma)
33 // 35 //
34 // class description 36 // class description
35 // 37 //
36 // gamma ---> mu+ mu- 38 // gamma ---> mu+ mu-
37 // inherit from G4VDiscreteProcess 39 // inherit from G4VDiscreteProcess
38 // 40 //
39 41
40 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
41 43
42 #ifndef G4GammaConversionToMuons_h 44 #ifndef G4GammaConversionToMuons_h
43 #define G4GammaConversionToMuons_h 1 45 #define G4GammaConversionToMuons_h 1
44 46
45 #include "G4ios.hh" 47 #include "G4ios.hh"
46 #include "globals.hh" 48 #include "globals.hh"
47 #include "Randomize.hh" 49 #include "Randomize.hh"
48 #include "G4VDiscreteProcess.hh" 50 #include "G4VDiscreteProcess.hh"
49 #include "G4PhysicsTable.hh" 51 #include "G4PhysicsTable.hh"
50 #include "G4PhysicsLogVector.hh" 52 #include "G4PhysicsLogVector.hh"
51 #include "G4ParticleDefinition.hh" <<
52 #include "G4Element.hh" 53 #include "G4Element.hh"
>> 54 #include "G4Gamma.hh"
>> 55 #include "G4Electron.hh"
>> 56 #include "G4Positron.hh"
53 #include "G4Step.hh" 57 #include "G4Step.hh"
54 #include <vector> <<
55 58
56 //....oooOO0OOooo........oooOO0OOooo........oo 59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 60
58 class G4LossTableManager; <<
59 class G4BetheHeitler5DModel; <<
60 <<
61 class G4GammaConversionToMuons : public G4VDis 61 class G4GammaConversionToMuons : public G4VDiscreteProcess
>> 62
62 { 63 {
63 public: // with description << 64 public: // with description
64 65
65 explicit G4GammaConversionToMuons( << 66 G4GammaConversionToMuons(const G4String& processName ="GammaToMuPair",
66 const G4String& proces << 67 G4ProcessType type = fElectromagnetic);
67 G4ProcessType type = f <<
68 68
69 ~G4GammaConversionToMuons() override; << 69 ~G4GammaConversionToMuons();
70 70
71 G4bool IsApplicable(const G4ParticleDefiniti << 71 G4bool IsApplicable(const G4ParticleDefinition&);
72 // true for Gamma only. 72 // true for Gamma only.
73 73
74 void BuildPhysicsTable(const G4ParticleDefin << 74 void BuildPhysicsTable(const G4ParticleDefinition&);
75 // here dummy, the total cross section 75 // here dummy, the total cross section parametrization is used rather
76 // than tables, just calling PrintInfo 76 // than tables, just calling PrintInfoDefinition
77 77
78 void PrintInfoDefinition(); << 78 void PrintInfoDefinition();
79 // Print few lines of informations abou 79 // Print few lines of informations about the process: validity range,
80 // origine ..etc.. 80 // origine ..etc..
81 // Invoked by BuildThePhysicsTable(). 81 // Invoked by BuildThePhysicsTable().
82 82
83 void SetCrossSecFactor(G4double fac); << 83 void SetCrossSecFactor(G4double fac);
84 // Set the factor to artificially incre 84 // Set the factor to artificially increase the crossSection (default 1)
85 85
86 inline G4double GetCrossSecFactor() const { << 86 G4double GetCrossSecFactor() { return CrossSecFactor;}
87 // Get the factor to artificially incre 87 // Get the factor to artificially increase the cross section
88 88
89 G4double GetMeanFreePath(const G4Track& aTra << 89 G4double GetMeanFreePath(const G4Track& aTrack,
90 G4double previousSt << 90 G4double previousStepSize,
91 G4ForceCondition* c << 91 G4ForceCondition* condition);
92 // It returns the MeanFreePath of the p 92 // It returns the MeanFreePath of the process for the current track :
93 // (energy, material) 93 // (energy, material)
94 // The previousStepSize and G4ForceCond 94 // The previousStepSize and G4ForceCondition* are not used.
95 // This function overloads a virtual fu 95 // This function overloads a virtual function of the base class.
96 // It is invoked by the ProcessManager 96 // It is invoked by the ProcessManager of the Particle.
97 97
98 G4double GetCrossSectionPerAtom(const G4Dyna << 98 G4double GetCrossSectionPerAtom(const G4DynamicParticle* aDynamicGamma,
99 const G4Elem << 99 G4Element* anElement);
100 // It returns the total CrossSectionPer 100 // It returns the total CrossSectionPerAtom of the process,
101 // for the current DynamicGamma (energy 101 // for the current DynamicGamma (energy), in anElement.
102 102
103 G4VParticleChange* PostStepDoIt(const G4Trac << 103 G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
104 const G4Step& aStep) override; << 104 const G4Step& aStep);
105 // It computes the final state of the p 105 // It computes the final state of the process (at end of step),
106 // returned as a ParticleChange object. 106 // returned as a ParticleChange object.
107 // This function overloads a virtual fu 107 // This function overloads a virtual function of the base class.
108 // It is invoked by the ProcessManager 108 // It is invoked by the ProcessManager of the Particle.
109 109
110 G4double ComputeCrossSectionPerAtom(G4double << 110 virtual
>> 111 G4double ComputeCrossSectionPerAtom(G4double GammaEnergy,
>> 112 G4double AtomicZ,G4double AtomicA);
>> 113
>> 114 G4double ComputeMeanFreePath (G4double GammaEnergy,
>> 115 G4Material* aMaterial);
>> 116
>> 117 private:
>> 118
>> 119 G4Element* SelectRandomAtom(const G4DynamicParticle* aDynamicGamma,
>> 120 G4Material* aMaterial);
>> 121
>> 122 private:
>> 123
>> 124 // hide assignment operator as private
>> 125 G4GammaConversionToMuons& operator=(const G4GammaConversionToMuons &right);
>> 126 G4GammaConversionToMuons(const G4GammaConversionToMuons& );
>> 127
>> 128 private:
>> 129
>> 130 G4double LowestEnergyLimit ; // low energy limit of the tables
>> 131 G4double HighestEnergyLimit ; // high energy limit of the tables
111 132
112 G4double ComputeMeanFreePath (G4double Gamma << 133 G4double MeanFreePath; // actual MeanFreePath (current medium)
113 const G4Materi << 134 G4double CrossSecFactor; // factor to artificially increase
>> 135 // the cross section
114 136
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 }; 137 };
143 138
144 //....oooOO0OOooo........oooOO0OOooo........oo 139 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
145 140
146 #endif 141 #endif
147 142
148 143