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26 // 7 //
27 // ------------------------------------------- 8 // -------------------------------------------------------------------
28 // 9 //
29 // GEANT4 Class file 10 // GEANT4 Class file
30 // 11 //
>> 12 // For information related to this code contact:
>> 13 // Geant4 Collaboration
31 // 14 //
32 // File name: G4hNuclearStoppingModel 15 // File name: G4hNuclearStoppingModel
33 // 16 //
34 // Author: V.Ivanchenko (Vladimir.Ivanc 17 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
35 // 18 //
36 // Creation date: 20 July 2000 19 // Creation date: 20 July 2000
37 // 20 //
38 // Modifications: 21 // Modifications:
39 // 20/07/2000 V.Ivanchenko First implementati 22 // 20/07/2000 V.Ivanchenko First implementation
40 // 22/08/2000 V.Ivanchenko Bug fixed in call 23 // 22/08/2000 V.Ivanchenko Bug fixed in call of a model
41 // 03/10/2000 V.Ivanchenko CodeWizard clean u 24 // 03/10/2000 V.Ivanchenko CodeWizard clean up
42 // 25 //
43 // Class Description: 26 // Class Description:
44 // 27 //
45 // Low energy protons/ions nuclear stopping pa 28 // Low energy protons/ions nuclear stopping parametrisation
46 // 29 //
47 // Class Description: End 30 // Class Description: End
48 // 31 //
49 // ------------------------------------------- 32 // -------------------------------------------------------------------
50 // 33 //
51 //....oooOO0OOooo........oooOO0OOooo........oo 34 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
52 //....oooOO0OOooo........oooOO0OOooo........oo 35 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
53 36
54 #include "G4hNuclearStoppingModel.hh" 37 #include "G4hNuclearStoppingModel.hh"
55 <<
56 #include "globals.hh" <<
57 #include "G4PhysicalConstants.hh" <<
58 #include "G4SystemOfUnits.hh" <<
59 #include "G4UnitsTable.hh" 38 #include "G4UnitsTable.hh"
>> 39 #include "globals.hh"
>> 40 #include "G4hZiegler1977Nuclear.hh"
60 #include "G4hZiegler1985Nuclear.hh" 41 #include "G4hZiegler1985Nuclear.hh"
61 #include "G4hICRU49Nuclear.hh" 42 #include "G4hICRU49Nuclear.hh"
62 #include "G4DynamicParticle.hh" 43 #include "G4DynamicParticle.hh"
63 #include "G4ParticleDefinition.hh" 44 #include "G4ParticleDefinition.hh"
64 #include "G4ElementVector.hh" 45 #include "G4ElementVector.hh"
65 #include "G4Material.hh" <<
66 46
67 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
68 48
69 G4hNuclearStoppingModel::G4hNuclearStoppingMod << 49 G4hNuclearStoppingModel::G4hNuclearStoppingModel(const G4String& name):
70 :G4VLowEnergyModel(name), modelName(name) << 50 G4VLowEnergyModel(name)
71 { 51 {
>> 52 modelName = name ;
72 InitializeMe() ; 53 InitializeMe() ;
73 } 54 }
74 55
75 //....oooOO0OOooo........oooOO0OOooo........oo 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 57
77 void G4hNuclearStoppingModel::InitializeMe() 58 void G4hNuclearStoppingModel::InitializeMe()
78 { 59 {
79 // Constants 60 // Constants
80 highEnergyLimit = 100.*MeV ; 61 highEnergyLimit = 100.*MeV ;
81 lowEnergyLimit = 1.*eV ; 62 lowEnergyLimit = 1.*eV ;
82 factorPDG2AMU = 1.007276/proton_mass_c2 ; 63 factorPDG2AMU = 1.007276/proton_mass_c2 ;
83 theZieglerFactor= eV*cm2*1.0e-15 ; 64 theZieglerFactor= eV*cm2*1.0e-15 ;
84 65
85 // Registration of parametrisation models of 66 // Registration of parametrisation models of nuclear energy losses
86 G4String blank = G4String(" ") ; 67 G4String blank = G4String(" ") ;
>> 68 G4String zi77 = G4String("Ziegler1977") ;
87 G4String ir49 = G4String("ICRU_R49") ; 69 G4String ir49 = G4String("ICRU_R49") ;
88 G4String zi85 = G4String("Ziegler1985") ; 70 G4String zi85 = G4String("Ziegler1985") ;
89 if(ir49 == modelName || blank == modelName) << 71 if(zi77 == modelName) {
>> 72 nStopingPowerTable = new G4hZiegler1977Nuclear();
>> 73
>> 74 } else if(ir49 == modelName || blank == modelName) {
90 nStopingPowerTable = new G4hICRU49Nuclea 75 nStopingPowerTable = new G4hICRU49Nuclear();
91 76
92 } else if(zi85 == modelName) { 77 } else if(zi85 == modelName) {
93 nStopingPowerTable = new G4hZiegler1985N 78 nStopingPowerTable = new G4hZiegler1985Nuclear();
94 79
95 } else { 80 } else {
96 G4cout << 81 G4cout <<
97 "G4hLowEnergyIonisation warning: There is 82 "G4hLowEnergyIonisation warning: There is no table with the modelName <"
98 << modelName << ">" << 83 << modelName << ">"
99 << " for nuclear stopping, <ICRU_R49> is << 84 << " for nuclear stopping, <ICRU_R49> is applied "
100 << G4endl; << 85 << G4endl;
101 nStopingPowerTable = new G4hICRU49Nuclear( 86 nStopingPowerTable = new G4hICRU49Nuclear();
102 } 87 }
103 88
104 // Default is nuclear stopping fluctuations 89 // Default is nuclear stopping fluctuations On
105 // nStopingPowerTable->SetNuclearStoppingFl << 90 nStopingPowerTable->SetNuclearStoppingFluctuationsOn();
106 nStopingPowerTable->SetNuclearStoppingFluctu <<
107 } 91 }
108 92
109 //....oooOO0OOooo........oooOO0OOooo........oo 93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
110 94
111 G4hNuclearStoppingModel::~G4hNuclearStoppingMo 95 G4hNuclearStoppingModel::~G4hNuclearStoppingModel()
112 { 96 {
113 delete nStopingPowerTable; 97 delete nStopingPowerTable;
114 } 98 }
115 99
116 //....oooOO0OOooo........oooOO0OOooo........oo 100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 101
118 G4double G4hNuclearStoppingModel::TheValue( 102 G4double G4hNuclearStoppingModel::TheValue(
119 const G4DynamicParti 103 const G4DynamicParticle* particle,
120 const G4Material* material 104 const G4Material* material)
121 { 105 {
122 // Projectile nucleus 106 // Projectile nucleus
123 G4double energy = particle->GetKineticEnergy 107 G4double energy = particle->GetKineticEnergy() ;
124 G4double z1 = std::abs((particle->GetCharge( << 108 G4double z1 = abs((particle->GetCharge())/eplus) ;
125 G4double m1 = (particle->GetMass())*factorPD 109 G4double m1 = (particle->GetMass())*factorPDG2AMU ;
126 110
127 G4double nloss = StoppingPower(material, ene 111 G4double nloss = StoppingPower(material, energy, z1, m1) * theZieglerFactor;
128 112
129 return nloss; 113 return nloss;
130 } 114 }
131 115
132 //....oooOO0OOooo........oooOO0OOooo........oo 116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
133 117
134 G4double G4hNuclearStoppingModel::TheValue( 118 G4double G4hNuclearStoppingModel::TheValue(
135 const G4ParticleDefi 119 const G4ParticleDefinition* aParticle,
136 const G4Material* material, 120 const G4Material* material,
137 G4double kinet 121 G4double kineticEnergy)
138 { 122 {
139 // Projectile nucleus 123 // Projectile nucleus
140 G4double z1 = std::abs((aParticle->GetPDGCha << 124 G4double z1 = abs((aParticle->GetPDGCharge())/eplus) ;
141 G4double m1 = (aParticle->GetPDGMass())*fact 125 G4double m1 = (aParticle->GetPDGMass())*factorPDG2AMU ;
142 126
143 G4double nloss = StoppingPower(material, kin 127 G4double nloss = StoppingPower(material, kineticEnergy, z1, m1)
144 * theZieglerFactor; 128 * theZieglerFactor;
145 129
146 return nloss; 130 return nloss;
147 } 131 }
148 132
149 //....oooOO0OOooo........oooOO0OOooo........oo 133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
150 134
151 G4double G4hNuclearStoppingModel::StoppingPowe 135 G4double G4hNuclearStoppingModel::StoppingPower(
152 const G4Material* ma 136 const G4Material* material,
153 G4double kinet 137 G4double kineticEnergy,
154 G4double z1, G 138 G4double z1, G4double m1) const
155 { 139 {
156 // Target nucleus 140 // Target nucleus
157 std::size_t NumberOfElements = material->Get << 141 G4int NumberOfElements = material->GetNumberOfElements() ;
158 if(0 == NumberOfElements) return 0.0 ; 142 if(0 == NumberOfElements) return 0.0 ;
159 143
160 const G4ElementVector* theElementVector = 144 const G4ElementVector* theElementVector =
161 material->Get 145 material->GetElementVector() ;
162 const G4double* theAtomicNumDensityVector = 146 const G4double* theAtomicNumDensityVector =
163 material->Get 147 material->GetAtomicNumDensityVector() ;
164 148
165 // loop for the elements in the material 149 // loop for the elements in the material
166 150
167 G4double nloss = 0.0; 151 G4double nloss = 0.0;
168 152
169 for (std::size_t iel=0; iel<NumberOfElements << 153 for (G4int iel=0; iel<NumberOfElements; iel++) {
170 const G4Element* element = (*theElementVec << 154 const G4Element* element = (*theElementVector)(iel) ;
171 G4double z2 = element->GetZ(); << 155 G4double z2 = element->GetZ() ;
172 G4double m2Local = element->GetA()*mole/g << 156 G4double m2 = element->GetA()*mole/g ;
173 nloss += (nStopingPowerTable-> 157 nloss += (nStopingPowerTable->
174 NuclearStoppingPower(kineticEner << 158 NuclearStoppingPower(kineticEnergy, z1, z2, m1, m2))
175 * theAtomicNumDensityVector[iel] ; 159 * theAtomicNumDensityVector[iel] ;
176 } 160 }
177 161
178 return nloss; 162 return nloss;
179 } 163 }
180 164
181 //....oooOO0OOooo........oooOO0OOooo........oo 165 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 166
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