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27 // ------------------------------------------- 27 // -------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class file 29 // GEANT4 Class file
30 // 30 //
31 // 31 //
32 // File name: G4hNuclearStoppingModel 32 // File name: G4hNuclearStoppingModel
33 // 33 //
34 // Author: V.Ivanchenko (Vladimir.Ivanc 34 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
35 // 35 //
36 // Creation date: 20 July 2000 36 // Creation date: 20 July 2000
37 // 37 //
38 // Modifications: 38 // Modifications:
39 // 20/07/2000 V.Ivanchenko First implementati 39 // 20/07/2000 V.Ivanchenko First implementation
40 // 22/08/2000 V.Ivanchenko Bug fixed in call 40 // 22/08/2000 V.Ivanchenko Bug fixed in call of a model
41 // 03/10/2000 V.Ivanchenko CodeWizard clean u 41 // 03/10/2000 V.Ivanchenko CodeWizard clean up
42 // 42 //
43 // Class Description: 43 // Class Description:
44 // 44 //
45 // Low energy protons/ions nuclear stopping pa 45 // Low energy protons/ions nuclear stopping parametrisation
46 // 46 //
47 // Class Description: End 47 // Class Description: End
48 // 48 //
49 // ------------------------------------------- 49 // -------------------------------------------------------------------
50 // 50 //
51 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
52 //....oooOO0OOooo........oooOO0OOooo........oo 52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
53 53
54 #include "G4hNuclearStoppingModel.hh" 54 #include "G4hNuclearStoppingModel.hh"
55 55
56 #include "globals.hh" 56 #include "globals.hh"
57 #include "G4PhysicalConstants.hh" 57 #include "G4PhysicalConstants.hh"
58 #include "G4SystemOfUnits.hh" 58 #include "G4SystemOfUnits.hh"
59 #include "G4UnitsTable.hh" 59 #include "G4UnitsTable.hh"
>> 60 #include "G4hZiegler1977Nuclear.hh"
60 #include "G4hZiegler1985Nuclear.hh" 61 #include "G4hZiegler1985Nuclear.hh"
61 #include "G4hICRU49Nuclear.hh" 62 #include "G4hICRU49Nuclear.hh"
62 #include "G4DynamicParticle.hh" 63 #include "G4DynamicParticle.hh"
63 #include "G4ParticleDefinition.hh" 64 #include "G4ParticleDefinition.hh"
64 #include "G4ElementVector.hh" 65 #include "G4ElementVector.hh"
65 #include "G4Material.hh" 66 #include "G4Material.hh"
66 67
67 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
68 69
69 G4hNuclearStoppingModel::G4hNuclearStoppingMod 70 G4hNuclearStoppingModel::G4hNuclearStoppingModel(const G4String& name)
70 :G4VLowEnergyModel(name), modelName(name) 71 :G4VLowEnergyModel(name), modelName(name)
71 { 72 {
72 InitializeMe() ; 73 InitializeMe() ;
73 } 74 }
74 75
75 //....oooOO0OOooo........oooOO0OOooo........oo 76 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 77
77 void G4hNuclearStoppingModel::InitializeMe() 78 void G4hNuclearStoppingModel::InitializeMe()
78 { 79 {
79 // Constants 80 // Constants
80 highEnergyLimit = 100.*MeV ; 81 highEnergyLimit = 100.*MeV ;
81 lowEnergyLimit = 1.*eV ; 82 lowEnergyLimit = 1.*eV ;
82 factorPDG2AMU = 1.007276/proton_mass_c2 ; 83 factorPDG2AMU = 1.007276/proton_mass_c2 ;
83 theZieglerFactor= eV*cm2*1.0e-15 ; 84 theZieglerFactor= eV*cm2*1.0e-15 ;
84 85
85 // Registration of parametrisation models of 86 // Registration of parametrisation models of nuclear energy losses
86 G4String blank = G4String(" ") ; 87 G4String blank = G4String(" ") ;
>> 88 G4String zi77 = G4String("Ziegler1977") ;
87 G4String ir49 = G4String("ICRU_R49") ; 89 G4String ir49 = G4String("ICRU_R49") ;
88 G4String zi85 = G4String("Ziegler1985") ; 90 G4String zi85 = G4String("Ziegler1985") ;
89 if(ir49 == modelName || blank == modelName) << 91 if(zi77 == modelName) {
>> 92 nStopingPowerTable = new G4hZiegler1977Nuclear();
>> 93
>> 94 } else if(ir49 == modelName || blank == modelName) {
90 nStopingPowerTable = new G4hICRU49Nuclea 95 nStopingPowerTable = new G4hICRU49Nuclear();
91 96
92 } else if(zi85 == modelName) { 97 } else if(zi85 == modelName) {
93 nStopingPowerTable = new G4hZiegler1985N 98 nStopingPowerTable = new G4hZiegler1985Nuclear();
94 99
95 } else { 100 } else {
96 G4cout << 101 G4cout <<
97 "G4hLowEnergyIonisation warning: There is 102 "G4hLowEnergyIonisation warning: There is no table with the modelName <"
98 << modelName << ">" << 103 << modelName << ">"
99 << " for nuclear stopping, <ICRU_R49> is << 104 << " for nuclear stopping, <ICRU_R49> is applied "
100 << G4endl; << 105 << G4endl;
101 nStopingPowerTable = new G4hICRU49Nuclear( 106 nStopingPowerTable = new G4hICRU49Nuclear();
102 } 107 }
103 108
104 // Default is nuclear stopping fluctuations 109 // Default is nuclear stopping fluctuations On
105 // nStopingPowerTable->SetNuclearStoppingFl 110 // nStopingPowerTable->SetNuclearStoppingFluctuationsOn();
106 nStopingPowerTable->SetNuclearStoppingFluctu 111 nStopingPowerTable->SetNuclearStoppingFluctuationsOff();
107 } 112 }
108 113
109 //....oooOO0OOooo........oooOO0OOooo........oo 114 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
110 115
111 G4hNuclearStoppingModel::~G4hNuclearStoppingMo 116 G4hNuclearStoppingModel::~G4hNuclearStoppingModel()
112 { 117 {
113 delete nStopingPowerTable; 118 delete nStopingPowerTable;
114 } 119 }
115 120
116 //....oooOO0OOooo........oooOO0OOooo........oo 121 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 122
118 G4double G4hNuclearStoppingModel::TheValue( 123 G4double G4hNuclearStoppingModel::TheValue(
119 const G4DynamicParti 124 const G4DynamicParticle* particle,
120 const G4Material* material 125 const G4Material* material)
121 { 126 {
122 // Projectile nucleus 127 // Projectile nucleus
123 G4double energy = particle->GetKineticEnergy 128 G4double energy = particle->GetKineticEnergy() ;
124 G4double z1 = std::abs((particle->GetCharge( 129 G4double z1 = std::abs((particle->GetCharge())/eplus) ;
125 G4double m1 = (particle->GetMass())*factorPD 130 G4double m1 = (particle->GetMass())*factorPDG2AMU ;
126 131
127 G4double nloss = StoppingPower(material, ene 132 G4double nloss = StoppingPower(material, energy, z1, m1) * theZieglerFactor;
128 133
129 return nloss; 134 return nloss;
130 } 135 }
131 136
132 //....oooOO0OOooo........oooOO0OOooo........oo 137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
133 138
134 G4double G4hNuclearStoppingModel::TheValue( 139 G4double G4hNuclearStoppingModel::TheValue(
135 const G4ParticleDefi 140 const G4ParticleDefinition* aParticle,
136 const G4Material* material, 141 const G4Material* material,
137 G4double kinet 142 G4double kineticEnergy)
138 { 143 {
139 // Projectile nucleus 144 // Projectile nucleus
140 G4double z1 = std::abs((aParticle->GetPDGCha 145 G4double z1 = std::abs((aParticle->GetPDGCharge())/eplus) ;
141 G4double m1 = (aParticle->GetPDGMass())*fact 146 G4double m1 = (aParticle->GetPDGMass())*factorPDG2AMU ;
142 147
143 G4double nloss = StoppingPower(material, kin 148 G4double nloss = StoppingPower(material, kineticEnergy, z1, m1)
144 * theZieglerFactor; 149 * theZieglerFactor;
145 150
146 return nloss; 151 return nloss;
147 } 152 }
148 153
149 //....oooOO0OOooo........oooOO0OOooo........oo 154 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
150 155
151 G4double G4hNuclearStoppingModel::StoppingPowe 156 G4double G4hNuclearStoppingModel::StoppingPower(
152 const G4Material* ma 157 const G4Material* material,
153 G4double kinet 158 G4double kineticEnergy,
154 G4double z1, G 159 G4double z1, G4double m1) const
155 { 160 {
156 // Target nucleus 161 // Target nucleus
157 std::size_t NumberOfElements = material->Get << 162 G4int NumberOfElements = material->GetNumberOfElements() ;
158 if(0 == NumberOfElements) return 0.0 ; 163 if(0 == NumberOfElements) return 0.0 ;
159 164
160 const G4ElementVector* theElementVector = 165 const G4ElementVector* theElementVector =
161 material->Get 166 material->GetElementVector() ;
162 const G4double* theAtomicNumDensityVector = 167 const G4double* theAtomicNumDensityVector =
163 material->Get 168 material->GetAtomicNumDensityVector() ;
164 169
165 // loop for the elements in the material 170 // loop for the elements in the material
166 171
167 G4double nloss = 0.0; 172 G4double nloss = 0.0;
168 173
169 for (std::size_t iel=0; iel<NumberOfElements << 174 for (G4int iel=0; iel<NumberOfElements; iel++) {
170 const G4Element* element = (*theElementVec 175 const G4Element* element = (*theElementVector)[iel] ;
171 G4double z2 = element->GetZ(); 176 G4double z2 = element->GetZ();
172 G4double m2Local = element->GetA()*mole/g 177 G4double m2Local = element->GetA()*mole/g ;
173 nloss += (nStopingPowerTable-> 178 nloss += (nStopingPowerTable->
174 NuclearStoppingPower(kineticEner 179 NuclearStoppingPower(kineticEnergy, z1, z2, m1, m2Local))
175 * theAtomicNumDensityVector[iel] ; 180 * theAtomicNumDensityVector[iel] ;
176 } 181 }
177 182
178 return nloss; 183 return nloss;
179 } 184 }
180 185
181 //....oooOO0OOooo........oooOO0OOooo........oo 186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 187
>> 188
>> 189
>> 190
>> 191
>> 192
>> 193
>> 194
182 195