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>> 26 // $Id: G4eBremParametrizedModel.hh,v 1.14 2010/10/26 10:35:22 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-04 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4eBremParametrizedModel 34 // File name: G4eBremParametrizedModel
33 // extention of standard G4eBre 35 // extention of standard G4eBremsstrahlungModel
34 // 36 //
35 // Author: Andreas Schaelicke 37 // Author: Andreas Schaelicke
36 // 38 //
37 // Creation date: 28.03.2008 39 // Creation date: 28.03.2008
38 // 40 //
39 // Modifications: 41 // Modifications:
40 // 42 //
41 // 43 //
42 // Class Description: 44 // Class Description:
43 // 45 //
44 // Implementation of energy loss for gamma emi 46 // Implementation of energy loss for gamma emission by electrons and
45 // positrons including an improved version of 47 // positrons including an improved version of the LPM effect
46 48
47 // ------------------------------------------- 49 // -------------------------------------------------------------------
48 // 50 //
49 51
50 #ifndef G4eBremParametrizedModel_h 52 #ifndef G4eBremParametrizedModel_h
51 #define G4eBremParametrizedModel_h 1 53 #define G4eBremParametrizedModel_h 1
52 54
53 #include "G4VEmModel.hh" 55 #include "G4VEmModel.hh"
54 #include "G4NistManager.hh" 56 #include "G4NistManager.hh"
55 57
56 class G4ParticleChangeForLoss; 58 class G4ParticleChangeForLoss;
57 class G4PhysicsVector; 59 class G4PhysicsVector;
58 60
59 class G4eBremParametrizedModel : public G4VEmM 61 class G4eBremParametrizedModel : public G4VEmModel
60 { 62 {
61 63
62 public: 64 public:
63 65
64 explicit G4eBremParametrizedModel(const G4Pa << 66 G4eBremParametrizedModel(const G4ParticleDefinition* p = 0,
65 const G4String& nam = "eBremParam" << 67 const G4String& nam = "eBremLPM");
66 68
67 ~G4eBremParametrizedModel() override; << 69 virtual ~G4eBremParametrizedModel();
68 70
69 void Initialise(const G4ParticleDefinition*, << 71 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
70 72
71 void InitialiseLocal(const G4ParticleDefinit << 73 virtual G4double MinEnergyCut(const G4ParticleDefinition*,
72 G4VEmModel* masterModel) override; << 74 const G4MaterialCutsCouple*);
73 75
74 G4double MinEnergyCut(const G4ParticleDefini << 76 virtual G4double ComputeDEDXPerVolume(const G4Material*,
75 const G4MaterialCutsCouple*) override; << 77 const G4ParticleDefinition*,
76 << 78 G4double kineticEnergy,
77 G4double ComputeDEDXPerVolume(const G4Materi << 79 G4double cutEnergy);
78 const G4ParticleDefinition*, <<
79 G4double kineticEnergy, <<
80 G4double cutEnergy) override; <<
81 80
82 G4double ComputeCrossSectionPerAtom(const G4 << 81 virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
83 G4double tkin, << 82 G4double tkin,
84 G4double Z, G4double, << 83 G4double Z, G4double,
85 G4double cutEnergy, << 84 G4double cutEnergy,
86 G4double maxEnergy = DBL_MAX) ov << 85 G4double maxEnergy = DBL_MAX);
87 86
88 void SampleSecondaries(std::vector<G4Dynamic << 87 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
89 const G4MaterialCutsCouple*, << 88 const G4MaterialCutsCouple*,
90 const G4DynamicParticle*, << 89 const G4DynamicParticle*,
91 G4double cutEnergy, << 90 G4double cutEnergy,
92 G4double maxEnergy) override; << 91 G4double maxEnergy);
93 92
94 void SetupForMaterial(const G4ParticleDefini << 93 virtual void SetupForMaterial(const G4ParticleDefinition*,
95 const G4Material*,G4do << 94 const G4Material*,G4double);
96 95
97 // hide assignment operator <<
98 G4eBremParametrizedModel & operator=(const <<
99 G4eBremParametrizedModel(const G4eBremParam <<
100 96
101 private: 97 private:
102 98
103 void InitialiseConstants(); 99 void InitialiseConstants();
104 100
105 G4double ComputeBremLoss(G4double cutEnergy) 101 G4double ComputeBremLoss(G4double cutEnergy);
106 102
107 G4double ComputeXSectionPerAtom(G4double cut 103 G4double ComputeXSectionPerAtom(G4double cutEnergy);
108 104
109 G4double ComputeDXSectionPerAtom(G4double ga 105 G4double ComputeDXSectionPerAtom(G4double gammaEnergy);
110 106
111 G4double ComputeParametrizedDXSectionPerAtom <<
112 G4double gammaEnergy, <<
113 G4double Z); <<
114 <<
115 void SetParticle(const G4ParticleDefinition* 107 void SetParticle(const G4ParticleDefinition* p);
116 108
117 G4double ScreenFunction1(G4double ScreenVari << 109 // * fast inline functions *
118 <<
119 G4double ScreenFunction2(G4double ScreenVari <<
120 <<
121 inline void SetCurrentElement(const G4double 110 inline void SetCurrentElement(const G4double);
122 111
>> 112 // hide assignment operator
>> 113 G4eBremParametrizedModel & operator=(const G4eBremParametrizedModel &right);
>> 114 G4eBremParametrizedModel(const G4eBremParametrizedModel&);
>> 115
123 protected: 116 protected:
124 117
125 G4NistManager* nist; 118 G4NistManager* nist;
126 const G4ParticleDefinition* particle; 119 const G4ParticleDefinition* particle;
127 G4ParticleDefinition* theGamma; 120 G4ParticleDefinition* theGamma;
128 G4ParticleChangeForLoss* fParticleChange; 121 G4ParticleChangeForLoss* fParticleChange;
129 122
130 static const G4double xgi[8], wgi[8]; 123 static const G4double xgi[8], wgi[8];
131 124
132 G4double minThreshold; 125 G4double minThreshold;
133 126
134 // cash 127 // cash
135 G4double particleMass; 128 G4double particleMass;
136 G4double kinEnergy; 129 G4double kinEnergy;
137 G4double totalEnergy; 130 G4double totalEnergy;
138 G4double currentZ; 131 G4double currentZ;
139 G4double z13, z23, lnZ; 132 G4double z13, z23, lnZ;
140 G4double densityFactor; 133 G4double densityFactor;
141 G4double densityCorr; 134 G4double densityCorr;
142 G4double Fel, Finel; 135 G4double Fel, Finel;
143 G4double facFel, facFinel; 136 G4double facFel, facFinel;
144 G4double fMax,fCoulomb; 137 G4double fMax,fCoulomb;
145 138
>> 139 G4bool isElectron;
>> 140
146 private: 141 private:
147 142
>> 143 // consts
148 G4double lowKinEnergy; 144 G4double lowKinEnergy;
149 G4double fMigdalConstant; 145 G4double fMigdalConstant;
150 G4double bremFactor; 146 G4double bremFactor;
151 147
152 G4bool isInitialised; << 148 G4bool isInitialised;
153 <<
154 protected: <<
155 <<
156 G4bool isElectron; <<
157 <<
158 }; 149 };
159 150
160 //....oooOO0OOooo........oooOO0OOooo........oo 151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
161 152
162 inline void G4eBremParametrizedModel::SetCurre 153 inline void G4eBremParametrizedModel::SetCurrentElement(const G4double Z)
163 { 154 {
>> 155 std::cout<<"SetCurrentElement Z="<<Z<<std::endl;
164 if(Z != currentZ) { 156 if(Z != currentZ) {
165 currentZ = Z; 157 currentZ = Z;
166 158
167 G4int iz = G4lrint(Z); << 159 G4int iz = G4int(Z);
168 z13 = nist->GetZ13(iz); 160 z13 = nist->GetZ13(iz);
169 z23 = z13*z13; 161 z23 = z13*z13;
170 lnZ = nist->GetLOGZ(iz); 162 lnZ = nist->GetLOGZ(iz);
171 163
172 Fel = facFel - lnZ/3. ; 164 Fel = facFel - lnZ/3. ;
173 Finel = facFinel - 2.*lnZ/3. ; 165 Finel = facFinel - 2.*lnZ/3. ;
174 166
175 fCoulomb = GetCurrentElement()->GetfCoulom 167 fCoulomb = GetCurrentElement()->GetfCoulomb();
176 fMax = Fel-fCoulomb + Finel/currentZ + ( 168 fMax = Fel-fCoulomb + Finel/currentZ + (1.+1./currentZ)/12.;
>> 169
177 } 170 }
178 } 171 }
179 172
180 //....oooOO0OOooo........oooOO0OOooo........oo 173 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
181 174
182 175
183 #endif 176 #endif
184 177