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>> 26 // $Id: G4EnergyLossForExtrapolator.hh 86978 2014-11-21 12:08:34Z gcosmo $
26 // 27 //
27 //-------------------------------------------- 28 //---------------------------------------------------------------------------
28 // 29 //
29 // ClassName: G4EnergyLossForExtrapolator 30 // ClassName: G4EnergyLossForExtrapolator
30 // 31 //
31 // Description: This class provide calculatio 32 // Description: This class provide calculation of energy loss, fluctuation,
32 // and msc angle 33 // and msc angle
33 // 34 //
34 // Author: 09.12.04 V.Ivanchenko 35 // Author: 09.12.04 V.Ivanchenko
35 // 36 //
36 // Modification: 37 // Modification:
37 // 08-04-05 Rename Propogator -> Extrapolator 38 // 08-04-05 Rename Propogator -> Extrapolator
38 // 16-03-06 Add muon tables 39 // 16-03-06 Add muon tables
39 // 21-03-06 Add verbosity defined in the const 40 // 21-03-06 Add verbosity defined in the constructor and Initialisation
40 // start only when first public metho 41 // start only when first public method is called (V.Ivanchenko)
41 // 03-05-06 Remove unused pointer G4Material* 42 // 03-05-06 Remove unused pointer G4Material* from number of methods (VI)
42 // 28-07-07 Add maxEnergyTransfer for computat 43 // 28-07-07 Add maxEnergyTransfer for computation of energy loss (VI)
43 // 44 //
44 //-------------------------------------------- 45 //----------------------------------------------------------------------------
45 // 46 //
46 47
47 //....oooOO0OOooo........oooOO0OOooo........oo 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
48 49
49 #ifndef G4EnergyLossForExtrapolator_h 50 #ifndef G4EnergyLossForExtrapolator_h
50 #define G4EnergyLossForExtrapolator_h 1 51 #define G4EnergyLossForExtrapolator_h 1
51 52
52 #include <vector> 53 #include <vector>
53 #include <CLHEP/Units/PhysicalConstants.h> 54 #include <CLHEP/Units/PhysicalConstants.h>
54 55
55 #include "globals.hh" 56 #include "globals.hh"
56 #include "G4PhysicsTable.hh" 57 #include "G4PhysicsTable.hh"
57 #include "G4TablesForExtrapolator.hh" 58 #include "G4TablesForExtrapolator.hh"
58 #include "G4Log.hh" 59 #include "G4Log.hh"
59 #include "G4Threading.hh" <<
60 60
61 class G4ParticleDefinition; 61 class G4ParticleDefinition;
62 class G4Material; 62 class G4Material;
63 class G4MaterialCutsCouple; 63 class G4MaterialCutsCouple;
64 64
65 //....oooOO0OOooo........oooOO0OOooo........oo 65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
66 66
67 class G4EnergyLossForExtrapolator 67 class G4EnergyLossForExtrapolator
68 { 68 {
69 public: 69 public:
70 70
71 explicit G4EnergyLossForExtrapolator(G4int v << 71 G4EnergyLossForExtrapolator(G4int verb = 1);
72 72
73 ~G4EnergyLossForExtrapolator(); 73 ~G4EnergyLossForExtrapolator();
74 74
75 void Initialisation(); << 75 G4double ComputeDEDX(G4double kinEnergy, const G4ParticleDefinition*);
76 <<
77 G4double ComputeDEDX(G4double kinEnergy, con <<
78 const G4Material*); <<
79 76
80 G4double ComputeRange(G4double kinEnergy, co << 77 G4double ComputeRange(G4double kinEnergy, const G4ParticleDefinition*);
81 const G4Material*); <<
82 78
83 G4double ComputeEnergy(G4double range, const << 79 G4double ComputeEnergy(G4double range, const G4ParticleDefinition*);
84 const G4Material*); <<
85 80
86 G4double EnergyAfterStep(G4double kinEnergy, 81 G4double EnergyAfterStep(G4double kinEnergy, G4double step,
87 const G4Material*, const G4ParticleDe 82 const G4Material*, const G4ParticleDefinition*);
88 83
89 G4double EnergyBeforeStep(G4double kinEnergy 84 G4double EnergyBeforeStep(G4double kinEnergy, G4double step,
90 const G4Material*, const G4Par 85 const G4Material*, const G4ParticleDefinition*);
91 86
92 G4double TrueStepLength(G4double kinEnergy, 87 G4double TrueStepLength(G4double kinEnergy, G4double step,
93 const G4Material*, const G4ParticleDef 88 const G4Material*, const G4ParticleDefinition* part);
94 89
95 inline G4double EnergyAfterStep(G4double kin 90 inline G4double EnergyAfterStep(G4double kinEnergy, G4double step,
96 const G4Material*, 91 const G4Material*,
97 const G4Stri 92 const G4String& particleName);
98 93
99 inline G4double EnergyBeforeStep(G4double ki 94 inline G4double EnergyBeforeStep(G4double kinEnergy, G4double step,
100 const G4Material*, 95 const G4Material*,
101 const G4Str 96 const G4String& particleName);
102 97
103 G4double AverageScatteringAngle(G4double kin << 98 inline G4double AverageScatteringAngle(G4double kinEnergy, G4double step,
104 const G4Material*, << 99 const G4Material*,
105 const G4ParticleDefinition* part); << 100 const G4ParticleDefinition* part);
106 101
107 inline G4double AverageScatteringAngle(G4dou 102 inline G4double AverageScatteringAngle(G4double kinEnergy, G4double step,
108 const G4Material*, 103 const G4Material*,
109 const G4String& particleName); 104 const G4String& particleName);
110 105
111 inline G4double ComputeTrueStep(const G4Mate 106 inline G4double ComputeTrueStep(const G4Material*,
112 const G4ParticleDefinition* part, 107 const G4ParticleDefinition* part,
113 G4double kinEnergy, G4double stepLen 108 G4double kinEnergy, G4double stepLength);
114 109
115 G4double EnergyDispersion(G4double kinEnergy << 110 inline G4double EnergyDispersion(G4double kinEnergy, G4double step,
116 const G4Material*, << 111 const G4Material*,
117 const G4ParticleDefinition*); << 112 const G4ParticleDefinition*);
118 113
119 inline G4double EnergyDispersion(G4double ki 114 inline G4double EnergyDispersion(G4double kinEnergy, G4double step,
120 const G4Material*, 115 const G4Material*,
121 const G4Str 116 const G4String& particleName);
122 117
123 inline void SetVerbose(G4int val); 118 inline void SetVerbose(G4int val);
124 119
125 inline void SetMinKinEnergy(G4double); 120 inline void SetMinKinEnergy(G4double);
126 121
127 inline void SetMaxKinEnergy(G4double); 122 inline void SetMaxKinEnergy(G4double);
128 123
129 inline void SetMaxEnergyTransfer(G4double); 124 inline void SetMaxEnergyTransfer(G4double);
130 <<
131 // hide assignment operator <<
132 G4EnergyLossForExtrapolator & operator= <<
133 (const G4EnergyLossForExtrapolator &right) = <<
134 G4EnergyLossForExtrapolator(const G4EnergyLo <<
135 125
136 private: 126 private:
137 127
>> 128 void Initialisation();
>> 129
>> 130 void BuildTables();
>> 131
138 G4bool SetupKinematics(const G4ParticleDefin 132 G4bool SetupKinematics(const G4ParticleDefinition*, const G4Material*,
139 G4double kinEnergy); 133 G4double kinEnergy);
140 134
141 const G4ParticleDefinition* FindParticle(con 135 const G4ParticleDefinition* FindParticle(const G4String& name);
142 136
143 inline G4double ComputeValue(G4double x, con 137 inline G4double ComputeValue(G4double x, const G4PhysicsTable* table,
144 size_t idxMat); << 138 size_t idx);
145 139
146 inline const G4PhysicsTable* GetPhysicsTable 140 inline const G4PhysicsTable* GetPhysicsTable(ExtTableType type) const;
147 141
148 #ifdef G4MULTITHREADED << 142 // hide assignment operator
149 static G4Mutex extrMutex; << 143 G4EnergyLossForExtrapolator & operator=(const G4EnergyLossForExtrapolator &right);
150 #endif << 144 G4EnergyLossForExtrapolator(const G4EnergyLossForExtrapolator&);
151 static G4TablesForExtrapolator* tables; <<
152 145
153 const G4ParticleDefinition* currentParticle << 146 static G4TablesForExtrapolator* tables;
154 const G4ParticleDefinition* electron = nullp <<
155 const G4ParticleDefinition* positron = nullp <<
156 const G4ParticleDefinition* muonPlus = nullp <<
157 const G4ParticleDefinition* muonMinus= nullp <<
158 const G4ParticleDefinition* proton = nullptr <<
159 const G4Material* currentMaterial = nullptr; <<
160 <<
161 G4double electronDensity = 0.0; <<
162 G4double radLength = 0.0; <<
163 G4double charge2 = 0.0; <<
164 G4double kineticEnergy = 0.0; <<
165 G4double gam = 1.0; <<
166 G4double bg2 = 0.0; <<
167 G4double beta2 = 0.0; <<
168 G4double tmax = 0.0; <<
169 <<
170 G4double linLossLimit = 0.01; <<
171 G4double emin = 0.0; <<
172 G4double emax = 0.0; <<
173 G4double maxEnergyTransfer = 0.0; <<
174 <<
175 size_t index = 0; <<
176 size_t nmat = 0; <<
177 G4int nbins = 80; <<
178 G4int verbose = 0; <<
179 147
180 G4bool isMaster = false; << 148 const G4ParticleDefinition* currentParticle;
>> 149 const G4ParticleDefinition* electron;
>> 150 const G4ParticleDefinition* positron;
>> 151 const G4ParticleDefinition* muonPlus;
>> 152 const G4ParticleDefinition* muonMinus;
>> 153 const G4ParticleDefinition* proton;
>> 154
>> 155 G4String currentParticleName;
>> 156
>> 157 size_t idxDedxElectron;
>> 158 size_t idxDedxPositron;
>> 159 size_t idxDedxMuon;
>> 160 size_t idxDedxProton;
>> 161 size_t idxRangeElectron;
>> 162 size_t idxRangePositron;
>> 163 size_t idxRangeMuon;
>> 164 size_t idxRangeProton;
>> 165 size_t idxInvRangeElectron;
>> 166 size_t idxInvRangePositron;
>> 167 size_t idxInvRangeMuon;
>> 168 size_t idxInvRangeProton;
>> 169 size_t idxMscElectron;
>> 170
>> 171 const G4Material* currentMaterial;
>> 172 G4int index;
>> 173
>> 174 G4double electronDensity;
>> 175 G4double radLength;
>> 176 G4double mass;
>> 177 G4double charge2;
>> 178 G4double kineticEnergy;
>> 179 G4double gam;
>> 180 G4double bg2;
>> 181 G4double beta2;
>> 182 G4double tmax;
>> 183
>> 184 G4double linLossLimit;
>> 185 G4double emin;
>> 186 G4double emax;
>> 187 G4double maxEnergyTransfer;
>> 188
>> 189 G4int nbins;
>> 190 G4int nmat;
>> 191 G4int verbose;
181 }; 192 };
182 193
183 //....oooOO0OOooo........oooOO0OOooo........oo 194 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
184 195
185 inline const G4PhysicsTable* 196 inline const G4PhysicsTable*
186 G4EnergyLossForExtrapolator::GetPhysicsTable(E 197 G4EnergyLossForExtrapolator::GetPhysicsTable(ExtTableType type) const
187 { 198 {
188 return tables->GetPhysicsTable(type); 199 return tables->GetPhysicsTable(type);
189 } 200 }
190 201
191 //....oooOO0OOooo........oooOO0OOooo........oo 202 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
192 203
193 inline G4double 204 inline G4double
194 G4EnergyLossForExtrapolator::EnergyAfterStep(G 205 G4EnergyLossForExtrapolator::EnergyAfterStep(G4double kinEnergy,
195 G4double step, 206 G4double step,
196 const G4Material* mat, 207 const G4Material* mat,
197 const G4String& name) 208 const G4String& name)
198 { 209 {
199 return EnergyAfterStep(kinEnergy,step,mat,Fi 210 return EnergyAfterStep(kinEnergy,step,mat,FindParticle(name));
200 } 211 }
201 212
202 //....oooOO0OOooo........oooOO0OOooo........oo 213 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
203 214
204 inline G4double 215 inline G4double
205 G4EnergyLossForExtrapolator::EnergyBeforeStep( 216 G4EnergyLossForExtrapolator::EnergyBeforeStep(G4double kinEnergy,
206 G4double step, 217 G4double step,
207 const G4Material* mat, 218 const G4Material* mat,
208 const G4String& name) 219 const G4String& name)
209 { 220 {
210 return EnergyBeforeStep(kinEnergy,step,mat,F 221 return EnergyBeforeStep(kinEnergy,step,mat,FindParticle(name));
211 } 222 }
212 223
213 //....oooOO0OOooo........oooOO0OOooo........oo 224 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
214 225
215 inline G4double 226 inline G4double
216 G4EnergyLossForExtrapolator::AverageScattering 227 G4EnergyLossForExtrapolator::AverageScatteringAngle(G4double kinEnergy,
217 G4double step, 228 G4double step,
218 const G4Material* mat, 229 const G4Material* mat,
219 const G4String& name) 230 const G4String& name)
220 { 231 {
221 return AverageScatteringAngle(kinEnergy,step 232 return AverageScatteringAngle(kinEnergy,step,mat,FindParticle(name));
222 } 233 }
223 234
224 //....oooOO0OOooo........oooOO0OOooo........oo 235 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
225 236
226 inline G4double 237 inline G4double
227 G4EnergyLossForExtrapolator::EnergyDispersion( 238 G4EnergyLossForExtrapolator::EnergyDispersion(G4double kinEnergy,
228 G4double step, 239 G4double step,
229 const G4Material* mat, 240 const G4Material* mat,
230 const G4String& name) 241 const G4String& name)
231 { 242 {
232 return EnergyDispersion(kinEnergy,step,mat,F 243 return EnergyDispersion(kinEnergy,step,mat,FindParticle(name));
233 } 244 }
234 245
235 //....oooOO0OOooo........oooOO0OOooo........oo 246 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
236 247
>> 248 inline G4double G4EnergyLossForExtrapolator::AverageScatteringAngle(
>> 249 G4double kinEnergy,
>> 250 G4double stepLength,
>> 251 const G4Material* mat,
>> 252 const G4ParticleDefinition* part)
>> 253 {
>> 254 G4double theta = 0.0;
>> 255 if(SetupKinematics(part, mat, kinEnergy)) {
>> 256 G4double t = stepLength/radLength;
>> 257 G4double y = std::max(0.001, t);
>> 258 theta = 19.23*CLHEP::MeV*std::sqrt(charge2*t)*(1.0 + 0.038*G4Log(y))
>> 259 /(beta2*gam*mass);
>> 260 }
>> 261 return theta;
>> 262 }
>> 263
>> 264 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 265
237 inline G4double 266 inline G4double
238 G4EnergyLossForExtrapolator::ComputeTrueStep(c 267 G4EnergyLossForExtrapolator::ComputeTrueStep(const G4Material* mat,
239 const G4ParticleDefinition* par 268 const G4ParticleDefinition* part,
240 G4double kinEnergy, 269 G4double kinEnergy,
241 G4double stepLength) 270 G4double stepLength)
242 { 271 {
243 G4double theta = AverageScatteringAngle(kinE 272 G4double theta = AverageScatteringAngle(kinEnergy,stepLength,mat,part);
244 return stepLength*std::sqrt(1.0 + 0.625*thet 273 return stepLength*std::sqrt(1.0 + 0.625*theta*theta);
245 } 274 }
246 275
247 //....oooOO0OOooo........oooOO0OOooo........oo 276 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 277
>> 278 inline G4double
>> 279 G4EnergyLossForExtrapolator::EnergyDispersion(G4double kinEnergy,
>> 280 G4double stepLength,
>> 281 const G4Material* mat,
>> 282 const G4ParticleDefinition* part)
>> 283 {
>> 284 G4double sig2 = 0.0;
>> 285 if(SetupKinematics(part, mat, kinEnergy)) {
>> 286 G4double step = ComputeTrueStep(mat,part,kinEnergy,stepLength);
>> 287 sig2 = (1.0/beta2 - 0.5)
>> 288 *CLHEP::twopi_mc2_rcl2*tmax*step*electronDensity*charge2;
>> 289 }
>> 290 return sig2;
>> 291 }
>> 292
>> 293 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
248 294
249 inline G4double 295 inline G4double
250 G4EnergyLossForExtrapolator::ComputeValue(G4do 296 G4EnergyLossForExtrapolator::ComputeValue(G4double x,
251 const G4PhysicsTable* table, 297 const G4PhysicsTable* table,
252 size_t idxMat) << 298 size_t idx)
253 { 299 {
254 return (nullptr != table) ? ((*table)[idxMat << 300 G4double res = 0.0;
>> 301 if(table) { res = ((*table)[index])->Value(x, idx); }
>> 302 return res;
255 } 303 }
256 304
257 //....oooOO0OOooo........oooOO0OOooo........oo 305 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
258 306
259 inline void G4EnergyLossForExtrapolator::SetVe 307 inline void G4EnergyLossForExtrapolator::SetVerbose(G4int val)
260 { 308 {
261 verbose = val; 309 verbose = val;
262 } 310 }
263 311
264 //....oooOO0OOooo........oooOO0OOooo........oo 312 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
265 313
266 inline void G4EnergyLossForExtrapolator::SetMi 314 inline void G4EnergyLossForExtrapolator::SetMinKinEnergy(G4double val)
267 { 315 {
268 emin = val; 316 emin = val;
269 } 317 }
270 318
271 //....oooOO0OOooo........oooOO0OOooo........oo 319 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
272 320
273 inline void G4EnergyLossForExtrapolator::SetMa 321 inline void G4EnergyLossForExtrapolator::SetMaxKinEnergy(G4double val)
274 { 322 {
275 emax = val; 323 emax = val;
276 } 324 }
277 325
278 //....oooOO0OOooo........oooOO0OOooo........oo 326 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
279 327
280 inline void G4EnergyLossForExtrapolator::SetMa 328 inline void G4EnergyLossForExtrapolator::SetMaxEnergyTransfer(G4double val)
281 { 329 {
282 maxEnergyTransfer = val; 330 maxEnergyTransfer = val;
283 } 331 }
284 332
285 //....oooOO0OOooo........oooOO0OOooo........oo 333 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
286 334
287 #endif 335 #endif
288 336
289 337