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1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 // 27 // ------------------------------------------- 28 // 29 // GEANT4 Class header file 30 // 31 // 32 // File name: G4VMultipleScattering 33 // 34 // Author: Vladimir Ivanchenko on base 35 // 36 // Creation date: 12.03.2002 37 // 38 // Modifications: 39 // 40 // 16-07-03 Update GetRange interface (V.Ivanc 41 // 26-11-03 bugfix in AlongStepDoIt (L.Urban) 42 // 25-05-04 add protection against case when r 43 // 27-08-04 Add InitialiseForRun method (V.Iva 44 // 08-11-04 Migration to new interface of Stor 45 // 15-04-05 remove boundary flag (V.Ivanchenko 46 // 07-10-05 error in a protection in GetContin 47 // 27-10-05 introduce virtual function MscStep 48 // 26-01-06 Rename GetRange -> GetRangeFromRes 49 // 17-02-06 Save table of transport cross sect 50 // 07-03-06 Move step limit calculation to mod 51 // 13-05-06 Add method to access model by inde 52 // 12-02-07 Add get/set skin (V.Ivanchenko) 53 // 27-10-07 Virtual functions moved to source 54 // 15-07-08 Reorder class members for further 55 // 07-04-09 Moved msc methods from G4VEmModel 56 // 57 // Class Description: 58 // 59 // It is the generic process of multiple scatt 60 // part of calculations for all charged partic 61 62 // ------------------------------------------- 63 // 64 65 #ifndef G4VMultipleScattering_h 66 #define G4VMultipleScattering_h 1 67 68 #include "G4VContinuousDiscreteProcess.hh" 69 #include "globals.hh" 70 #include "G4Material.hh" 71 #include "G4ParticleChangeForMSC.hh" 72 #include "G4Track.hh" 73 #include "G4Step.hh" 74 #include "G4EmModelManager.hh" 75 #include "G4VMscModel.hh" 76 #include "G4EmParameters.hh" 77 #include "G4MscStepLimitType.hh" 78 79 class G4ParticleDefinition; 80 class G4VEnergyLossProcess; 81 class G4LossTableManager; 82 class G4SafetyHelper; 83 84 //....oooOO0OOooo........oooOO0OOooo........oo 85 86 class G4VMultipleScattering : public G4VContin 87 { 88 public: 89 90 explicit G4VMultipleScattering(const G4Strin 91 G4ProcessType 92 93 ~G4VMultipleScattering() override; 94 95 //------------------------------------------ 96 // Virtual methods to be implemented for the 97 //------------------------------------------ 98 99 void ProcessDescription(std::ostream& outFil 100 101 virtual void InitialiseProcess(const G4Parti 102 103 // Print out of generic class parameters 104 void StreamInfo(std::ostream& outFile, const 105 G4bool rst = false) const; 106 107 protected: 108 109 virtual void StreamProcessInfo(std::ostream& 110 111 public: 112 113 //------------------------------------------ 114 // Generic methods common to all ContinuousD 115 //------------------------------------------ 116 117 // Initialise for build of tables 118 void PreparePhysicsTable(const G4ParticleDef 119 120 // Build physics table during initialisation 121 void BuildPhysicsTable(const G4ParticleDefin 122 123 // Store PhysicsTable in a file. 124 // Return false in case of failure at I/O 125 G4bool StorePhysicsTable(const G4ParticleDef 126 const G4String& dir 127 G4bool ascii = fals 128 129 // Retrieve Physics from a file. 130 // (return true if the Physics Table can be 131 // (return false if the process has no funct 132 // File name should is constructed as proces 133 // should be placed under the directory spec 134 G4bool RetrievePhysicsTable(const G4Particle 135 const G4String& 136 G4bool ascii) ov 137 138 // This is called in the beginning of tracki 139 void StartTracking(G4Track*) override; 140 141 // The function overloads the corresponding 142 // class.It limits the step near to boundari 143 // and invokes the method GetMscContinuousSt 144 G4double AlongStepGetPhysicalInteractionLeng 145 const 146 G4doub 147 G4doub 148 G4doub 149 G4GPIL 150 151 // The function overloads the corresponding 152 // class. 153 G4double PostStepGetPhysicalInteractionLengt 154 const G4 155 G4double 156 G4ForceC 157 158 // Along step actions 159 G4VParticleChange* AlongStepDoIt(const G4Tra 160 161 // This method does not used for tracking, i 162 G4double ContinuousStepLimit(const G4Track& 163 G4double previo 164 G4double curren 165 G4double& curre 166 167 // hide assignment operator 168 G4VMultipleScattering(G4VMultipleScattering 169 G4VMultipleScattering & operator=(const G4VM 170 171 //------------------------------------------ 172 // Specific methods to set, access, modify m 173 //------------------------------------------ 174 175 // Select model in run time 176 inline G4VEmModel* SelectModel(G4double kinE 177 178 public: 179 180 // Add model for region, smaller value of or 181 // model will be selected for a given energy 182 void AddEmModel(G4int order, G4VMscModel*, c 183 184 // Assign a model to a process local list, t 185 // the derived process should execute AddEmM 186 void SetEmModel(G4VMscModel*, G4int idx = 0) 187 188 // return a model from the local list 189 inline G4VMscModel* EmModel(size_t index = 0 190 191 // Access to run time models 192 inline G4int NumberOfModels() const; 193 194 inline G4VMscModel* GetModelByIndex(G4int id 195 196 //------------------------------------------ 197 // Get/Set parameters for simulation of mult 198 //------------------------------------------ 199 200 inline G4bool LateralDisplasmentFlag() const 201 202 inline G4double Skin() const; 203 204 inline G4double RangeFactor() const; 205 206 inline G4double GeomFactor() const; 207 208 inline G4double PolarAngleLimit() const; 209 210 inline G4bool UseBaseMaterial() const; 211 212 inline G4MscStepLimitType StepLimitType() co 213 inline void SetStepLimitType(G4MscStepLimitT 214 215 inline G4double LowestKinEnergy() const; 216 inline void SetLowestKinEnergy(G4double val) 217 218 inline const G4ParticleDefinition* FirstPart 219 220 //------------------------------------------ 221 // Run time methods 222 //------------------------------------------ 223 224 protected: 225 226 // This method is not used for tracking, it 227 G4double GetMeanFreePath(const G4Track& trac 228 G4double, 229 G4ForceCondition* c 230 231 // This method is not used for tracking, it 232 G4double GetContinuousStepLimit(const G4Trac 233 G4double pre 234 G4double cur 235 G4double& cu 236 237 private: 238 239 // ======== Parameters of the class fixed at 240 241 G4EmModelManager* modelManager; 242 G4LossTableManager* emManager; 243 G4EmParameters* theParameters; 244 245 // ======== Parameters of the class fixed at 246 247 G4SafetyHelper* safetyHelper = n 248 const G4ParticleDefinition* firstParticle = 249 const G4ParticleDefinition* currParticle = n 250 251 std::vector<G4VMscModel*> mscModels; 252 253 G4double facrange = 0.04; 254 G4double lowestKinEnergy; 255 256 // ======== Cached values - may be state dep 257 258 protected: 259 260 G4ParticleChangeForMSC fParticleChange; 261 262 private: 263 264 G4ThreeVector fNewPosition; 265 G4ThreeVector fNewDirection; 266 267 G4VMscModel* currentModel = n 268 G4VEnergyLossProcess* fIonisation = nu 269 270 G4double geomMin; 271 G4double minDisplacement2 272 G4double physStepLimit = 273 G4double tPathLength = 0. 274 G4double gPathLength = 0. 275 276 G4MscStepLimitType stepLimit = fUse 277 G4int numberOfModels = 278 279 G4bool latDisplacement 280 G4bool isIon = false; 281 G4bool fPositionChanged 282 G4bool isActive = false 283 G4bool baseMat = false; 284 }; 285 286 // ======== Run time inline methods ========== 287 288 //....oooOO0OOooo........oooOO0OOooo........oo 289 290 inline G4VEmModel* 291 G4VMultipleScattering::SelectModel(G4double ki 292 { 293 return modelManager->SelectModel(kinEnergy, 294 } 295 296 //....oooOO0OOooo........oooOO0OOooo........oo 297 298 inline G4bool G4VMultipleScattering::LateralD 299 { 300 return latDisplacement; 301 } 302 303 //....oooOO0OOooo........oooOO0OOooo........oo 304 305 inline G4double G4VMultipleScattering::Skin() 306 { 307 return theParameters->MscSkin(); 308 } 309 310 //....oooOO0OOooo........oooOO0OOooo........oo 311 312 inline G4double G4VMultipleScattering::RangeF 313 { 314 return facrange; 315 } 316 317 //....oooOO0OOooo........oooOO0OOooo........oo 318 319 inline G4double G4VMultipleScattering::GeomFa 320 { 321 return theParameters->MscGeomFactor(); 322 } 323 324 //....oooOO0OOooo........oooOO0OOooo........oo 325 326 inline G4double G4VMultipleScattering::PolarA 327 { 328 return theParameters->MscThetaLimit(); 329 } 330 331 //....oooOO0OOooo........oooOO0OOooo........oo 332 333 inline G4MscStepLimitType G4VMultipleScatterin 334 { 335 return stepLimit; 336 } 337 338 //....oooOO0OOooo........oooOO0OOooo........oo 339 340 inline void G4VMultipleScattering::SetStepLimi 341 { 342 theParameters->SetMscStepLimitType(val); 343 } 344 345 //....oooOO0OOooo........oooOO0OOooo........oo 346 347 inline G4double G4VMultipleScattering::LowestK 348 { 349 return lowestKinEnergy; 350 } 351 352 //....oooOO0OOooo........oooOO0OOooo........oo 353 354 inline void G4VMultipleScattering::SetLowestKi 355 { 356 lowestKinEnergy = val; 357 } 358 359 //....oooOO0OOooo........oooOO0OOooo........oo 360 361 inline const G4ParticleDefinition* G4VMultiple 362 { 363 return firstParticle; 364 } 365 366 //....oooOO0OOooo........oooOO0OOooo........oo 367 368 inline G4VMscModel* G4VMultipleScattering::EmM 369 { 370 return (index < mscModels.size()) ? mscModel 371 } 372 373 //....oooOO0OOooo........oooOO0OOooo........oo 374 375 inline G4int G4VMultipleScattering::NumberOfMo 376 { 377 return numberOfModels; 378 } 379 380 //....oooOO0OOooo........oooOO0OOooo........oo 381 382 inline G4VMscModel* 383 G4VMultipleScattering::GetModelByIndex(G4int i 384 { 385 // static cast is possible inside this class 386 return static_cast<G4VMscModel*>(modelManage 387 } 388 389 //....oooOO0OOooo........oooOO0OOooo........oo 390 391 inline G4bool G4VMultipleScattering::UseBaseMa 392 { 393 return baseMat; 394 } 395 396 //....oooOO0OOooo........oooOO0OOooo........oo 397 398 #endif 399