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25 //
26 //
27 #ifndef G4EmSaturation_h
28 #define G4EmSaturation_h 1
29
30 // -------------------------------------------------------------
31 //
32 // GEANT4 Class header file
33 //
34 //
35 // File name: G4EmSaturation
36 //
37 // Author: Vladimir Ivanchenko
38 //
39 // Creation date: 18.02.2008
40 //
41 // Modifications:
42 //
43 //
44 // Class Description:
45 // Compution on saturation effect, which reduce visible energy
46 // deposition at the step. Default implementation takes into
47 // account Birks effect. Birks coefficients for some materials
48 // from G4 database on materials are provided
49 //
50 // This class assumed to be G4ThreadLocal, because it is using
51 // cache value for material
52 //
53 // -------------------------------------------------------------
54
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
57
58 #include "globals.hh"
59 #include "G4Step.hh"
60 #include "G4ParticleDefinition.hh"
61 #include <vector>
62
63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
64
65 class G4NistManager;
66 class G4MaterialCutsCouple;
67 class G4Material;
68
69 class G4EmSaturation
70 {
71 public:
72
73 explicit G4EmSaturation(G4int verb);
74 virtual ~G4EmSaturation();
75
76 // this method may be overwritten in the derived class
77 // which implements alternative algorithm of saturation
78 virtual G4double VisibleEnergyDeposition(const G4ParticleDefinition*,
79 const G4MaterialCutsCouple*,
80 G4double length,
81 G4double edepTotal,
82 G4double edepNIEL = 0.0) const;
83
84 // activate default model
85 void InitialiseG4Saturation();
86
87 // find and Birks coefficient
88 G4double FindG4BirksCoefficient(const G4Material*);
89
90 // dump coeffitients used in run time
91 void DumpBirksCoefficients();
92
93 // dump G4 list
94 void DumpG4BirksCoefficients();
95
96 // this method should not be overwritten
97 inline G4double VisibleEnergyDepositionAtAStep(const G4Step*) const;
98
99 inline void SetVerbose(G4int);
100
101 // hide assignment operator
102 G4EmSaturation & operator=(const G4EmSaturation &right) = delete;
103 G4EmSaturation(const G4EmSaturation&) = delete;
104
105 private:
106
107 void InitialiseBirksCoefficient(const G4Material*);
108
109 void InitialiseG4materials();
110
111 const G4ParticleDefinition* electron;
112 const G4ParticleDefinition* proton;
113 G4NistManager* nist;
114
115 G4int verbose;
116 G4int nG4Birks;
117 G4int nWarnings;
118
119 static size_t nMaterials;
120
121 // list of materials used in run time
122 static std::vector<G4double> massFactors;
123 static std::vector<G4double> effCharges;
124
125 // list of G4 materials
126 static std::vector<G4double> g4MatData;
127 static std::vector<G4String> g4MatNames;
128 };
129
130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
131
132 inline void G4EmSaturation::SetVerbose(G4int val)
133 {
134 verbose = val;
135 }
136
137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
138
139 inline G4double G4EmSaturation::VisibleEnergyDepositionAtAStep(
140 const G4Step* step) const
141 {
142 return VisibleEnergyDeposition(step->GetTrack()->GetParticleDefinition(),
143 step->GetTrack()->GetMaterialCutsCouple(),
144 step->GetStepLength(),
145 step->GetTotalEnergyDeposit(),
146 step->GetNonIonizingEnergyDeposit());
147 }
148
149 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
150
151 #endif
152
153