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>> 26 // $Id: G4EnergyLossForExtrapolator.hh 74310 2013-10-03 06:44:36Z 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 "G4DataVector.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 class G4ProductionCuts;
64 65
65 //....oooOO0OOooo........oooOO0OOooo........oo 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
66 67
67 class G4EnergyLossForExtrapolator 68 class G4EnergyLossForExtrapolator
68 { 69 {
69 public: 70 public:
70 71
71 explicit G4EnergyLossForExtrapolator(G4int v << 72 G4EnergyLossForExtrapolator(G4int verb = 1);
72 73
73 ~G4EnergyLossForExtrapolator(); 74 ~G4EnergyLossForExtrapolator();
74 75
75 void Initialisation(); << 76 G4double ComputeDEDX(G4double kinEnergy, const G4ParticleDefinition*);
76 <<
77 G4double ComputeDEDX(G4double kinEnergy, con <<
78 const G4Material*); <<
79 77
80 G4double ComputeRange(G4double kinEnergy, co << 78 G4double ComputeRange(G4double kinEnergy, const G4ParticleDefinition*);
81 const G4Material*); <<
82 79
83 G4double ComputeEnergy(G4double range, const << 80 G4double ComputeEnergy(G4double range, const G4ParticleDefinition*);
84 const G4Material*); <<
85 81
86 G4double EnergyAfterStep(G4double kinEnergy, 82 G4double EnergyAfterStep(G4double kinEnergy, G4double step,
87 const G4Material*, const G4ParticleDe 83 const G4Material*, const G4ParticleDefinition*);
88 84
89 G4double EnergyBeforeStep(G4double kinEnergy 85 G4double EnergyBeforeStep(G4double kinEnergy, G4double step,
90 const G4Material*, const G4Par 86 const G4Material*, const G4ParticleDefinition*);
91 87
92 G4double TrueStepLength(G4double kinEnergy, 88 G4double TrueStepLength(G4double kinEnergy, G4double step,
93 const G4Material*, const G4ParticleDef 89 const G4Material*, const G4ParticleDefinition* part);
94 90
95 inline G4double EnergyAfterStep(G4double kin 91 inline G4double EnergyAfterStep(G4double kinEnergy, G4double step,
96 const G4Material*, << 92 const G4Material*, const G4String& particleName);
97 const G4Stri <<
98 93
99 inline G4double EnergyBeforeStep(G4double ki 94 inline G4double EnergyBeforeStep(G4double kinEnergy, G4double step,
100 const G4Material*, << 95 const G4Material*, const G4String& particleName);
101 const G4Str <<
102 96
103 G4double AverageScatteringAngle(G4double kin << 97 inline G4double AverageScatteringAngle(G4double kinEnergy, G4double step,
104 const G4Material*, << 98 const G4Material*,
105 const G4ParticleDefinition* part); << 99 const G4ParticleDefinition* part);
106 100
107 inline G4double AverageScatteringAngle(G4dou 101 inline G4double AverageScatteringAngle(G4double kinEnergy, G4double step,
108 const G4Material*, 102 const G4Material*,
109 const G4String& particleName); 103 const G4String& particleName);
110 104
111 inline G4double ComputeTrueStep(const G4Mate 105 inline G4double ComputeTrueStep(const G4Material*,
112 const G4ParticleDefinition* part, 106 const G4ParticleDefinition* part,
113 G4double kinEnergy, G4double stepLen 107 G4double kinEnergy, G4double stepLength);
114 108
115 G4double EnergyDispersion(G4double kinEnergy << 109 inline G4double EnergyDispersion(G4double kinEnergy, G4double step,
116 const G4Material*, << 110 const G4Material*, const G4ParticleDefinition*);
117 const G4ParticleDefinition*); <<
118 111
119 inline G4double EnergyDispersion(G4double ki 112 inline G4double EnergyDispersion(G4double kinEnergy, G4double step,
120 const G4Material*, << 113 const G4Material*, const G4String& particleName);
121 const G4Str <<
122 114
123 inline void SetVerbose(G4int val); 115 inline void SetVerbose(G4int val);
124 116
125 inline void SetMinKinEnergy(G4double); 117 inline void SetMinKinEnergy(G4double);
126 118
127 inline void SetMaxKinEnergy(G4double); 119 inline void SetMaxKinEnergy(G4double);
128 120
129 inline void SetMaxEnergyTransfer(G4double); 121 inline void SetMaxEnergyTransfer(G4double);
130 <<
131 // hide assignment operator <<
132 G4EnergyLossForExtrapolator & operator= <<
133 (const G4EnergyLossForExtrapolator &right) = <<
134 G4EnergyLossForExtrapolator(const G4EnergyLo <<
135 122
136 private: 123 private:
137 124
>> 125 void Initialisation();
>> 126
138 G4bool SetupKinematics(const G4ParticleDefin 127 G4bool SetupKinematics(const G4ParticleDefinition*, const G4Material*,
139 G4double kinEnergy); 128 G4double kinEnergy);
140 129
>> 130 G4PhysicsTable* PrepareTable();
>> 131
141 const G4ParticleDefinition* FindParticle(con 132 const G4ParticleDefinition* FindParticle(const G4String& name);
142 133
143 inline G4double ComputeValue(G4double x, con << 134 void ComputeElectronDEDX(const G4ParticleDefinition* part,
144 size_t idxMat); << 135 G4PhysicsTable* table);
145 136
146 inline const G4PhysicsTable* GetPhysicsTable << 137 void ComputeMuonDEDX(const G4ParticleDefinition* part,
>> 138 G4PhysicsTable* table);
147 139
148 #ifdef G4MULTITHREADED << 140 void ComputeProtonDEDX(const G4ParticleDefinition* part,
149 static G4Mutex extrMutex; << 141 G4PhysicsTable* table);
150 #endif <<
151 static G4TablesForExtrapolator* tables; <<
152 <<
153 const G4ParticleDefinition* currentParticle <<
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; <<
179 142
180 G4bool isMaster = false; << 143 void ComputeTrasportXS(const G4ParticleDefinition* part,
181 }; << 144 G4PhysicsTable* table);
182 145
183 //....oooOO0OOooo........oooOO0OOooo........oo << 146 inline G4double ComputeValue(G4double x, const G4PhysicsTable* table);
184 147
185 inline const G4PhysicsTable* << 148 // hide assignment operator
186 G4EnergyLossForExtrapolator::GetPhysicsTable(E << 149 G4EnergyLossForExtrapolator & operator=(const G4EnergyLossForExtrapolator &right);
187 { << 150 G4EnergyLossForExtrapolator(const G4EnergyLossForExtrapolator&);
188 return tables->GetPhysicsTable(type); << 151
189 } << 152 const G4ParticleDefinition* currentParticle;
>> 153 const G4ParticleDefinition* electron;
>> 154 const G4ParticleDefinition* positron;
>> 155 const G4ParticleDefinition* muonPlus;
>> 156 const G4ParticleDefinition* muonMinus;
>> 157 const G4ParticleDefinition* proton;
>> 158
>> 159 G4DataVector cuts;
>> 160
>> 161 G4ProductionCuts* pcuts;
>> 162 std::vector<const G4MaterialCutsCouple*> couples;
>> 163
>> 164 G4String currentParticleName;
>> 165
>> 166 G4PhysicsTable* dedxElectron;
>> 167 G4PhysicsTable* dedxPositron;
>> 168 G4PhysicsTable* dedxMuon;
>> 169 G4PhysicsTable* dedxProton;
>> 170 G4PhysicsTable* rangeElectron;
>> 171 G4PhysicsTable* rangePositron;
>> 172 G4PhysicsTable* rangeMuon;
>> 173 G4PhysicsTable* rangeProton;
>> 174 G4PhysicsTable* invRangeElectron;
>> 175 G4PhysicsTable* invRangePositron;
>> 176 G4PhysicsTable* invRangeMuon;
>> 177 G4PhysicsTable* invRangeProton;
>> 178 G4PhysicsTable* mscElectron;
>> 179
>> 180 const G4Material* currentMaterial;
>> 181 G4int index;
>> 182 G4double electronDensity;
>> 183 G4double radLength;
>> 184 G4double mass;
>> 185 G4double charge2;
>> 186 G4double kineticEnergy;
>> 187 G4double gam;
>> 188 G4double bg2;
>> 189 G4double beta2;
>> 190 G4double tmax;
>> 191
>> 192 G4double linLossLimit;
>> 193 G4double emin;
>> 194 G4double emax;
>> 195 G4double maxEnergyTransfer;
>> 196
>> 197 G4int nbins;
>> 198 G4int nmat;
>> 199 G4int verbose;
>> 200 G4bool isInitialised;
>> 201 };
190 202
191 //....oooOO0OOooo........oooOO0OOooo........oo 203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
192 204
193 inline G4double 205 inline G4double
194 G4EnergyLossForExtrapolator::EnergyAfterStep(G 206 G4EnergyLossForExtrapolator::EnergyAfterStep(G4double kinEnergy,
195 G4double step, 207 G4double step,
196 const G4Material* mat, 208 const G4Material* mat,
197 const G4String& name) 209 const G4String& name)
198 { 210 {
199 return EnergyAfterStep(kinEnergy,step,mat,Fi 211 return EnergyAfterStep(kinEnergy,step,mat,FindParticle(name));
200 } 212 }
201 213
202 //....oooOO0OOooo........oooOO0OOooo........oo 214 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
203 215
204 inline G4double 216 inline G4double
205 G4EnergyLossForExtrapolator::EnergyBeforeStep( 217 G4EnergyLossForExtrapolator::EnergyBeforeStep(G4double kinEnergy,
206 G4double step, 218 G4double step,
207 const G4Material* mat, 219 const G4Material* mat,
208 const G4String& name) 220 const G4String& name)
209 { 221 {
210 return EnergyBeforeStep(kinEnergy,step,mat,F 222 return EnergyBeforeStep(kinEnergy,step,mat,FindParticle(name));
211 } 223 }
212 224
213 //....oooOO0OOooo........oooOO0OOooo........oo 225 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
214 226
215 inline G4double 227 inline G4double
216 G4EnergyLossForExtrapolator::AverageScattering 228 G4EnergyLossForExtrapolator::AverageScatteringAngle(G4double kinEnergy,
217 G4double step, 229 G4double step,
218 const G4Material* mat, 230 const G4Material* mat,
219 const G4String& name) 231 const G4String& name)
220 { 232 {
221 return AverageScatteringAngle(kinEnergy,step 233 return AverageScatteringAngle(kinEnergy,step,mat,FindParticle(name));
222 } 234 }
223 235
224 //....oooOO0OOooo........oooOO0OOooo........oo 236 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
225 237
226 inline G4double 238 inline G4double
227 G4EnergyLossForExtrapolator::EnergyDispersion( 239 G4EnergyLossForExtrapolator::EnergyDispersion(G4double kinEnergy,
228 G4double step, 240 G4double step,
229 const G4Material* mat, 241 const G4Material* mat,
230 const G4String& name) 242 const G4String& name)
231 { 243 {
232 return EnergyDispersion(kinEnergy,step,mat,F 244 return EnergyDispersion(kinEnergy,step,mat,FindParticle(name));
233 } 245 }
234 246
235 //....oooOO0OOooo........oooOO0OOooo........oo 247 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
236 248
237 inline G4double 249 inline G4double
>> 250 G4EnergyLossForExtrapolator::AverageScatteringAngle(G4double kinEnergy,
>> 251 G4double stepLength,
>> 252 const G4Material* mat,
>> 253 const G4ParticleDefinition* part)
>> 254 {
>> 255 G4double theta = 0.0;
>> 256 if(SetupKinematics(part, mat, kinEnergy)) {
>> 257 G4double t = stepLength/radLength;
>> 258 G4double y = std::max(0.001, t);
>> 259 theta = 19.23*CLHEP::MeV*std::sqrt(charge2*t)*(1.0 + 0.038*G4Log(y))
>> 260 /(beta2*gam*mass);
>> 261 }
>> 262 return theta;
>> 263 }
>> 264
>> 265 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 266
>> 267 inline G4double
238 G4EnergyLossForExtrapolator::ComputeTrueStep(c 268 G4EnergyLossForExtrapolator::ComputeTrueStep(const G4Material* mat,
239 const G4ParticleDefinition* par 269 const G4ParticleDefinition* part,
240 G4double kinEnergy, 270 G4double kinEnergy,
241 G4double stepLength) 271 G4double stepLength)
242 { 272 {
243 G4double theta = AverageScatteringAngle(kinE 273 G4double theta = AverageScatteringAngle(kinEnergy,stepLength,mat,part);
244 return stepLength*std::sqrt(1.0 + 0.625*thet 274 return stepLength*std::sqrt(1.0 + 0.625*theta*theta);
245 } 275 }
246 276
247 //....oooOO0OOooo........oooOO0OOooo........oo 277 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 278
>> 279 inline G4double
>> 280 G4EnergyLossForExtrapolator::EnergyDispersion(G4double kinEnergy,
>> 281 G4double stepLength,
>> 282 const G4Material* mat,
>> 283 const G4ParticleDefinition* part)
>> 284 {
>> 285 G4double sig2 = 0.0;
>> 286 if(SetupKinematics(part, mat, kinEnergy)) {
>> 287 G4double step = ComputeTrueStep(mat,part,kinEnergy,stepLength);
>> 288 sig2 = (1.0/beta2 - 0.5)*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) <<
253 { 298 {
254 return (nullptr != table) ? ((*table)[idxMat << 299 G4double res = 0.0;
>> 300 G4bool b;
>> 301 if(table) res = ((*table)[index])->GetValue(x, b);
>> 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