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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: G4IonChuFluctuationModel 15 // File name: G4IonChuFluctuationModel
33 // 16 //
34 // Author: V.Ivanchenko (Vladimir.Ivanc 17 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
35 // 18 //
36 // Creation date: 18 August 2000 19 // Creation date: 18 August 2000
37 // 20 //
38 // Modifications: 21 // Modifications:
39 // 18/08/2000 V.Ivanchenko First implementati 22 // 18/08/2000 V.Ivanchenko First implementation
40 // 04/09/2000 V.Ivanchenko Rename fluctuation 23 // 04/09/2000 V.Ivanchenko Rename fluctuations
41 // 03/10/2000 V.Ivanchenko CodeWizard clean u 24 // 03/10/2000 V.Ivanchenko CodeWizard clean up
42 // 10/05/2001 V.Ivanchenko Clean up againist <<
43 // 25 //
44 // ------------------------------------------- 26 // -------------------------------------------------------------------
45 // 27 //
46 // Class Description: 28 // Class Description:
47 // 29 //
48 // The aproximation of additional ion energy l 30 // The aproximation of additional ion energy loss fluctuations
49 // W.K.Chu, In: Ion Beam Handbook for Material 31 // W.K.Chu, In: Ion Beam Handbook for Material Analysis.
50 // eds. J.W. Mayer and E. Rimini (Academic Pre 32 // eds. J.W. Mayer and E. Rimini (Academic Press, New York, 1977).
51 // Q.Yang et al., NIM B61(1991)149-155. 33 // Q.Yang et al., NIM B61(1991)149-155.
52 // 34 //
53 // Class Description: End 35 // Class Description: End
54 // 36 //
55 // ------------------------------------------- 37 // -------------------------------------------------------------------
56 // 38 //
57 //....oooOO0OOooo........oooOO0OOooo........oo 39 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
58 40
59 #include "G4IonChuFluctuationModel.hh" 41 #include "G4IonChuFluctuationModel.hh"
60 <<
61 #include "globals.hh" <<
62 #include "G4PhysicalConstants.hh" <<
63 #include "G4SystemOfUnits.hh" <<
64 #include "G4DynamicParticle.hh" 42 #include "G4DynamicParticle.hh"
65 #include "G4ParticleDefinition.hh" 43 #include "G4ParticleDefinition.hh"
66 #include "G4Material.hh" 44 #include "G4Material.hh"
>> 45 #include "globals.hh"
67 46
68 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
69 48
70 G4IonChuFluctuationModel::G4IonChuFluctuationM 49 G4IonChuFluctuationModel::G4IonChuFluctuationModel(const G4String& name)
71 : G4VLowEnergyModel(name) 50 : G4VLowEnergyModel(name)
72 {;} 51 {;}
73 52
74 //....oooOO0OOooo........oooOO0OOooo........oo 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
75 54
76 G4IonChuFluctuationModel::~G4IonChuFluctuation 55 G4IonChuFluctuationModel::~G4IonChuFluctuationModel()
77 {;} 56 {;}
78 57
79 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
80 59
81 G4double G4IonChuFluctuationModel::TheValue(co 60 G4double G4IonChuFluctuationModel::TheValue(const G4DynamicParticle* particle,
82 const G4 61 const G4Material* material)
83 { 62 {
84 G4double energy = particle->GetKineticEnergy 63 G4double energy = particle->GetKineticEnergy() ;
85 G4double particleMass = particle->GetMass() 64 G4double particleMass = particle->GetMass() ;
86 65
87 G4double q = ChuFluctuationModel(material,en 66 G4double q = ChuFluctuationModel(material,energy,particleMass) ;
88 67
89 return q ; 68 return q ;
90 } 69 }
91 70
92 //....oooOO0OOooo........oooOO0OOooo........oo 71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
93 72
94 G4double G4IonChuFluctuationModel::TheValue( 73 G4double G4IonChuFluctuationModel::TheValue(
95 const G4Par 74 const G4ParticleDefinition* aParticle,
96 const G4Material* 75 const G4Material* material,
97 G4dou 76 G4double kineticEnergy)
98 { 77 {
99 G4double particleMass = aParticle->GetPDGMas 78 G4double particleMass = aParticle->GetPDGMass() ;
100 79
101 G4double q = ChuFluctuationModel(material,ki 80 G4double q = ChuFluctuationModel(material,kineticEnergy,particleMass);
102 81
103 return q ; 82 return q ;
104 } 83 }
105 84
106 //....oooOO0OOooo........oooOO0OOooo........oo 85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
107 86
108 G4double G4IonChuFluctuationModel::HighEnergyL << 87 G4double G4IonChuFluctuationModel::HighEnergyLimit(
109 const G4Material* ) const << 88 const G4ParticleDefinition* aParticle,
>> 89 const G4Material* material) const
110 { 90 {
111 return 1.0*TeV ; 91 return 1.0*TeV ;
112 } 92 }
113 93
114 //....oooOO0OOooo........oooOO0OOooo........oo 94 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
115 95
116 G4double G4IonChuFluctuationModel::LowEnergyLi << 96 G4double G4IonChuFluctuationModel::LowEnergyLimit(
117 const G4Material*) const << 97 const G4ParticleDefinition* aParticle,
>> 98 const G4Material* material) const
118 { 99 {
119 return 0.0 ; 100 return 0.0 ;
120 } 101 }
121 102
122 //....oooOO0OOooo........oooOO0OOooo........oo 103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
123 104
124 G4double G4IonChuFluctuationModel::HighEnergyL << 105 G4double G4IonChuFluctuationModel::HighEnergyLimit(
>> 106 const G4ParticleDefinition* aParticle) const
125 { 107 {
126 return 1.0*TeV ; 108 return 1.0*TeV ;
127 } 109 }
128 110
129 //....oooOO0OOooo........oooOO0OOooo........oo 111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
130 112
131 G4double G4IonChuFluctuationModel::LowEnergyLi << 113 G4double G4IonChuFluctuationModel::LowEnergyLimit(
>> 114 const G4ParticleDefinition* aParticle) const
132 { 115 {
133 return 0.0 ; 116 return 0.0 ;
134 } 117 }
135 118
136 //....oooOO0OOooo........oooOO0OOooo........oo 119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
137 120
138 G4bool G4IonChuFluctuationModel::IsInCharge(co << 121 G4bool G4IonChuFluctuationModel::IsInCharge(
139 const G4Material*) const << 122 const G4DynamicParticle* particle,
>> 123 const G4Material* material) const
140 { 124 {
141 return true ; 125 return true ;
142 } 126 }
143 127
144 //....oooOO0OOooo........oooOO0OOooo........oo 128 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
145 129
146 G4bool G4IonChuFluctuationModel::IsInCharge(co << 130 G4bool G4IonChuFluctuationModel::IsInCharge(
147 const G4Material*) const << 131 const G4ParticleDefinition* aParticle,
>> 132 const G4Material* material) const
148 { 133 {
149 return true ; 134 return true ;
150 } 135 }
151 136
152 //....oooOO0OOooo........oooOO0OOooo........oo 137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
153 138
154 G4double G4IonChuFluctuationModel::ChuFluctuat << 139 G4double G4IonChuFluctuationModel::ChuFluctuationModel(
155 G4double kineticEnergy, << 140 const G4Material* material,
156 G4double particleMass) cons << 141 G4double kineticEnergy,
>> 142 G4double particleMass) const
157 { 143 {
158 // The aproximation of energy loss fluctuati 144 // The aproximation of energy loss fluctuations
159 // Q.Yang et al., NIM B61(1991)149-155. 145 // Q.Yang et al., NIM B61(1991)149-155.
160 146
161 // Reduced energy in MeV/AMU 147 // Reduced energy in MeV/AMU
162 G4double energy = kineticEnergy * amu_c2/(pa 148 G4double energy = kineticEnergy * amu_c2/(particleMass*MeV) ;
163 149
164 G4double zeff = (material->GetElectronDensit 150 G4double zeff = (material->GetElectronDensity())/
165 (material->GetTotNbOfAtomsPe 151 (material->GetTotNbOfAtomsPerVolume()) ;
166 152
167 static const G4double a[96][4] = { << 153 static G4double a[96][4] = {
168 {-0.3291, -0.8312, 0.2460, -1.0220}, << 154 -0.3291, -0.8312, 0.2460, -1.0220,
169 {-0.5615, -0.5898, 0.5205, -0.7258}, << 155 -0.5615, -0.5898, 0.5205, -0.7258,
170 {-0.5280, -0.4981, 0.5519, -0.5865}, << 156 -0.5280, -0.4981, 0.5519, -0.5865,
171 {-0.5125, -0.4625, 0.5660, -0.5190}, << 157 -0.5125, -0.4625, 0.5660, -0.5190,
172 {-0.5127, -0.8595, 0.5626, -0.8721}, << 158 -0.5127, -0.8595, 0.5626, -0.8721,
173 {-0.5174, -1.1930, 0.5565, -1.1980}, << 159 -0.5174, -1.1930, 0.5565, -1.1980,
174 {-0.5179, -1.1850, 0.5560, -1.2070}, << 160 -0.5179, -1.1850, 0.5560, -1.2070,
175 {-0.5209, -0.9355, 0.5590, -1.0250}, << 161 -0.5209, -0.9355, 0.5590, -1.0250,
176 {-0.5255, -0.7766, 0.5720, -0.9412}, << 162 -0.5255, -0.7766, 0.5720, -0.9412,
177 << 163
178 {-0.5776, -0.6665, 0.6598, -0.8484}, << 164 -0.5776, -0.6665, 0.6598, -0.8484,
179 {-0.6013, -0.6045, 0.7321, -0.7671}, << 165 -0.6013, -0.6045, 0.7321, -0.7671,
180 {-0.5781, -0.5518, 0.7605, -0.6919}, << 166 -0.5781, -0.5518, 0.7605, -0.6919,
181 {-0.5587, -0.4981, 0.7835, -0.6195}, << 167 -0.5587, -0.4981, 0.7835, -0.6195,
182 {-0.5466, -0.4656, 0.7978, -0.5771}, << 168 -0.5466, -0.4656, 0.7978, -0.5771,
183 {-0.5406, -0.4690, 0.8031, -0.5718}, << 169 -0.5406, -0.4690, 0.8031, -0.5718,
184 {-0.5391, -0.5061, 0.8024, -0.5974}, << 170 -0.5391, -0.5061, 0.8024, -0.5974,
185 {-0.5380, -0.6483, 0.7962, -0.6970}, << 171 -0.5380, -0.6483, 0.7962, -0.6970,
186 {-0.5355, -0.7722, 0.7962, -0.7839}, << 172 -0.5355, -0.7722, 0.7962, -0.7839,
187 {-0.5329, -0.7720, 0.7988, -0.7846}, << 173 -0.5329, -0.7720, 0.7988, -0.7846,
188 << 174
189 {-0.5335, -0.7671, 0.7984, -0.7933}, << 175 -0.5335, -0.7671, 0.7984, -0.7933,
190 {-0.5324, -0.7612, 0.7998, -0.8031}, << 176 -0.5324, -0.7612, 0.7998, -0.8031,
191 {-0.5305, -0.7300, 0.8031, -0.7990}, << 177 -0.5305, -0.7300, 0.8031, -0.7990,
192 {-0.5307, -0.7178, 0.8049, -0.8216}, << 178 -0.5307, -0.7178, 0.8049, -0.8216,
193 {-0.5248, -0.6621, 0.8165, -0.7919}, << 179 -0.5248, -0.6621, 0.8165, -0.7919,
194 {-0.5180, -0.6502, 0.8266, -0.7986}, << 180 -0.5180, -0.6502, 0.8266, -0.7986,
195 {-0.5084, -0.6408, 0.8396, -0.8048}, << 181 -0.5084, -0.6408, 0.8396, -0.8048,
196 {-0.4967, -0.6331, 0.8549, -0.8093}, << 182 -0.4967, -0.6331, 0.8549, -0.8093,
197 {-0.4861, -0.6508, 0.8712, -0.8432}, << 183 -0.4861, -0.6508, 0.8712, -0.8432,
198 {-0.4700, -0.6186, 0.8961, -0.8132}, << 184 -0.4700, -0.6186, 0.8961, -0.8132,
199 << 185
200 {-0.4545, -0.5720, 0.9227, -0.7710}, << 186 -0.4545, -0.5720, 0.9227, -0.7710,
201 {-0.4404, -0.5226, 0.9481, -0.7254}, << 187 -0.4404, -0.5226, 0.9481, -0.7254,
202 {-0.4288, -0.4778, 0.9701, -0.6850}, << 188 -0.4288, -0.4778, 0.9701, -0.6850,
203 {-0.4199, -0.4425, 0.9874, -0.6539}, << 189 -0.4199, -0.4425, 0.9874, -0.6539,
204 {-0.4131, -0.4188, 0.9998, -0.6332}, << 190 -0.4131, -0.4188, 0.9998, -0.6332,
205 {-0.4089, -0.4057, 1.0070, -0.6218}, << 191 -0.4089, -0.4057, 1.0070, -0.6218,
206 {-0.4039, -0.3913, 1.0150, -0.6107}, << 192 -0.4039, -0.3913, 1.0150, -0.6107,
207 {-0.3987, -0.3698, 1.0240, -0.5938}, << 193 -0.3987, -0.3698, 1.0240, -0.5938,
208 {-0.3977, -0.3608, 1.0260, -0.5852}, << 194 -0.3977, -0.3608, 1.0260, -0.5852,
209 {-0.3972, -0.3600, 1.0260, -0.5842}, << 195 -0.3972, -0.3600, 1.0260, -0.5842,
210 << 196
211 {-0.3985, -0.3803, 1.0200, -0.6013}, << 197 -0.3985, -0.3803, 1.0200, -0.6013,
212 {-0.3985, -0.3979, 1.0150, -0.6168}, << 198 -0.3985, -0.3979, 1.0150, -0.6168,
213 {-0.3968, -0.3990, 1.0160, -0.6195}, << 199 -0.3968, -0.3990, 1.0160, -0.6195,
214 {-0.3971, -0.4432, 1.0050, -0.6591}, << 200 -0.3971, -0.4432, 1.0050, -0.6591,
215 {-0.3944, -0.4665, 1.0010, -0.6825}, << 201 -0.3944, -0.4665, 1.0010, -0.6825,
216 {-0.3924, -0.5109, 0.9921, -0.7235}, << 202 -0.3924, -0.5109, 0.9921, -0.7235,
217 {-0.3882, -0.5158, 0.9947, -0.7343}, << 203 -0.3882, -0.5158, 0.9947, -0.7343,
218 {-0.3838, -0.5125, 0.9999, -0.7370}, << 204 -0.3838, -0.5125, 0.9999, -0.7370,
219 {-0.3786, -0.4976, 1.0090, -0.7310}, << 205 -0.3786, -0.4976, 1.0090, -0.7310,
220 {-0.3741, -0.4738, 1.0200, -0.7155}, << 206 -0.3741, -0.4738, 1.0200, -0.7155,
221 << 207
222 {-0.3969, -0.4496, 1.0320, -0.6982}, << 208 -0.3969, -0.4496, 1.0320, -0.6982,
223 {-0.3663, -0.4297, 1.0430, -0.6828}, << 209 -0.3663, -0.4297, 1.0430, -0.6828,
224 {-0.3630, -0.4120, 1.0530, -0.6689}, << 210 -0.3630, -0.4120, 1.0530, -0.6689,
225 {-0.3597, -0.3964, 1.0620, -0.6564}, << 211 -0.3597, -0.3964, 1.0620, -0.6564,
226 {-0.3555, -0.3809, 1.0720, -0.6454}, << 212 -0.3555, -0.3809, 1.0720, -0.6454,
227 {-0.3525, -0.3607, 1.0820, -0.6289}, << 213 -0.3525, -0.3607, 1.0820, -0.6289,
228 {-0.3505, -0.3465, 1.0900, -0.6171}, << 214 -0.3505, -0.3465, 1.0900, -0.6171,
229 {-0.3397, -0.3570, 1.1020, -0.6384}, << 215 -0.3397, -0.3570, 1.1020, -0.6384,
230 {-0.3314, -0.3552, 1.1130, -0.6441}, << 216 -0.3314, -0.3552, 1.1130, -0.6441,
231 {-0.3235, -0.3531, 1.1230, -0.6498}, << 217 -0.3235, -0.3531, 1.1230, -0.6498,
232 << 218
233 {-0.3150, -0.3483, 1.1360, -0.6539}, << 219 -0.3150, -0.3483, 1.1360, -0.6539,
234 {-0.3060, -0.3441, 1.1490, -0.6593}, << 220 -0.3060, -0.3441, 1.1490, -0.6593,
235 {-0.2968, -0.3396, 1.1630, -0.6649}, << 221 -0.2968, -0.3396, 1.1630, -0.6649,
236 {-0.2935, -0.3225, 1.1760, -0.6527}, << 222 -0.2935, -0.3225, 1.1760, -0.6527,
237 {-0.2797, -0.3262, 1.1940, -0.6722}, << 223 -0.2797, -0.3262, 1.1940, -0.6722,
238 {-0.2704, -0.3202, 1.2100, -0.6770}, << 224 -0.2704, -0.3202, 1.2100, -0.6770,
239 {-0.2815, -0.3227, 1.2480, -0.6775}, << 225 -0.2815, -0.3227, 1.2480, -0.6775,
240 {-0.2880, -0.3245, 1.2810, -0.6801}, << 226 -0.2880, -0.3245, 1.2810, -0.6801,
241 {-0.3034, -0.3263, 1.3270, -0.6778}, << 227 -0.3034, -0.3263, 1.3270, -0.6778,
242 {-0.2936, -0.3215, 1.3430, -0.6835}, << 228 -0.2936, -0.3215, 1.3430, -0.6835,
243 << 229
244 {-0.3282, -0.3200, 1.3980, -0.6650}, << 230 -0.3282, -0.3200, 1.3980, -0.6650,
245 {-0.3260, -0.3070, 1.4090, -0.6552}, << 231 -0.3260, -0.3070, 1.4090, -0.6552,
246 {-0.3511, -0.3074, 1.4470, -0.6442}, << 232 -0.3511, -0.3074, 1.4470, -0.6442,
247 {-0.3501, -0.3064, 1.4500, -0.6442}, << 233 -0.3501, -0.3064, 1.4500, -0.6442,
248 {-0.3490, -0.3027, 1.4550, -0.6418}, << 234 -0.3490, -0.3027, 1.4550, -0.6418,
249 {-0.3487, -0.3048, 1.4570, -0.6447}, << 235 -0.3487, -0.3048, 1.4570, -0.6447,
250 {-0.3478, -0.3074, 1.4600, -0.6483}, << 236 -0.3478, -0.3074, 1.4600, -0.6483,
251 {-0.3501, -0.3283, 1.4540, -0.6669}, << 237 -0.3501, -0.3283, 1.4540, -0.6669,
252 {-0.3494, -0.3373, 1.4550, -0.6765}, << 238 -0.3494, -0.3373, 1.4550, -0.6765,
253 {-0.3485, -0.3373, 1.4570, -0.6774}, << 239 -0.3485, -0.3373, 1.4570, -0.6774,
254 << 240
255 {-0.3462, -0.3300, 1.4630, -0.6728}, << 241 -0.3462, -0.3300, 1.4630, -0.6728,
256 {-0.3462, -0.3225, 1.4690, -0.6662}, << 242 -0.3462, -0.3225, 1.4690, -0.6662,
257 {-0.3453, -0.3094, 1.4790, -0.6553}, << 243 -0.3453, -0.3094, 1.4790, -0.6553,
258 {-0.3844, -0.3134, 1.5240, -0.6412}, << 244 -0.3844, -0.3134, 1.5240, -0.6412,
259 {-0.3848, -0.3018, 1.5310, -0.6303}, << 245 -0.3848, -0.3018, 1.5310, -0.6303,
260 {-0.3862, -0.2955, 1.5360, -0.6237}, << 246 -0.3862, -0.2955, 1.5360, -0.6237,
261 {-0.4262, -0.2991, 1.5860, -0.6115}, << 247 -0.4262, -0.2991, 1.5860, -0.6115,
262 {-0.4278, -0.2910, 1.5900, -0.6029}, << 248 -0.4278, -0.2910, 1.5900, -0.6029,
263 {-0.4303, -0.2817, 1.5940, -0.5927}, << 249 -0.4303, -0.2817, 1.5940, -0.5927,
264 {-0.4315, -0.2719, 1.6010, -0.5829}, << 250 -0.4315, -0.2719, 1.6010, -0.5829,
265 << 251
266 {-0.4359, -0.2914, 1.6050, -0.6010}, << 252 -0.4359, -0.2914, 1.6050, -0.6010,
267 {-0.4365, -0.2982, 1.6080, -0.6080}, << 253 -0.4365, -0.2982, 1.6080, -0.6080,
268 {-0.4253, -0.3037, 1.6120, -0.6150}, << 254 -0.4253, -0.3037, 1.6120, -0.6150,
269 {-0.4335, -0.3245, 1.6160, -0.6377}, << 255 -0.4335, -0.3245, 1.6160, -0.6377,
270 {-0.4307, -0.3292, 1.6210, -0.6447}, << 256 -0.4307, -0.3292, 1.6210, -0.6447,
271 {-0.4284, -0.3204, 1.6290, -0.6380}, << 257 -0.4284, -0.3204, 1.6290, -0.6380,
272 {-0.4227, -0.3217, 1.6360, -0.6438} << 258 -0.4227, -0.3217, 1.6360, -0.6438,
273 } ; 259 } ;
274 260
275 G4int iz = (G4int)zeff - 2 ; 261 G4int iz = (G4int)zeff - 2 ;
276 if( 0 > iz ) iz = 0 ; 262 if( 0 > iz ) iz = 0 ;
277 if(95 < iz ) iz = 95 ; 263 if(95 < iz ) iz = 95 ;
278 264
279 G4double q = 1.0 / (1.0 + a[iz][0]*std::pow( << 265 G4double q = 1.0 / (1.0 + a[iz][0]*pow(energy,a[iz][1])+
280 + a[iz][2]*std::pow( << 266 + a[iz][2]*pow(energy,a[iz][3])) ;
281 267
282 return q ; 268 return q ;
283 } 269 }
284 270
285 271
286 272