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>> 26 // $Id: G4IonParametrisedLossModel.hh 66241 2012-12-13 18:34:42Z gunter $
26 // 27 //
27 // =========================================== 28 // ===========================================================================
28 // GEANT4 class header file 29 // GEANT4 class header file
29 // 30 //
30 // Class: G4IonParametrisedLoss 31 // Class: G4IonParametrisedLossModel
31 // 32 //
32 // Base class: G4VEmModel (utils) 33 // Base class: G4VEmModel (utils)
33 // 34 //
34 // Author: Anton Lechner (Anton. 35 // Author: Anton Lechner (Anton.Lechner@cern.ch)
35 // 36 //
36 // First implementation: 10. 11. 2008 37 // First implementation: 10. 11. 2008
37 // 38 //
38 // Modifications: 03. 02. 2009 - Bug fix itera 39 // Modifications: 03. 02. 2009 - Bug fix iterators (AL)
39 // 11. 03. 2009 - Introduced ne 40 // 11. 03. 2009 - Introduced new table handler(G4IonDEDXHandler)
40 // and modified 41 // and modified method to add/remove tables
41 // (tables are n 42 // (tables are now built in init. phase),
42 // Minor bug fix 43 // Minor bug fix in ComputeDEDXPerVolume (AL)
43 // 12. 11. 2009 - Added functio 44 // 12. 11. 2009 - Added function for switching off scaling
44 // of heavy ions 45 // of heavy ions from ICRU 73 data
45 // 20. 11. 2009 - Added set-met 46 // 20. 11. 2009 - Added set-method for energy loss limit (AL)
46 // 24. 11. 2009 - Bug fix: Rang 47 // 24. 11. 2009 - Bug fix: Range calculation corrected if same
47 // materials app 48 // materials appears with different cuts in diff.
48 // regions (adde 49 // regions (added UpdateRangeCache function and
49 // modified Buil 50 // modified BuildRangeVector, ComputeLossForStep
50 // functions acc 51 // functions accordingly, added new cache param.,
51 // changed typde 52 // changed typdef of IonMatCouple).
52 // - Removed GetRa 53 // - Removed GetRange function (AL)
53 // 54 //
54 // Class description: 55 // Class description:
55 // Model for computing the energy loss of i 56 // Model for computing the energy loss of ions by employing a
56 // parameterisation of dE/dx tables (defaul 57 // parameterisation of dE/dx tables (default ICRU 73 tables). For
57 // ion-material combinations and/or project 58 // ion-material combinations and/or projectile energies not covered
58 // by this model, the G4BraggIonModel and G 59 // by this model, the G4BraggIonModel and G4BetheBloch models are
59 // employed. 60 // employed.
60 // 61 //
61 // Comments: 62 // Comments:
62 // 63 //
63 // =========================================== 64 // ===========================================================================
64 65
65 66
66 #ifndef G4IONPARAMETRISEDLOSSMODEL_HH 67 #ifndef G4IONPARAMETRISEDLOSSMODEL_HH
67 #define G4IONPARAMETRISEDLOSSMODEL_HH 68 #define G4IONPARAMETRISEDLOSSMODEL_HH
68 69
69 #include <iomanip> 70 #include <iomanip>
70 #include <list> 71 #include <list>
71 #include <map> 72 #include <map>
72 #include <utility> 73 #include <utility>
73 #include <CLHEP/Units/PhysicalConstants.h> 74 #include <CLHEP/Units/PhysicalConstants.h>
74 75
75 #include "G4VEmModel.hh" 76 #include "G4VEmModel.hh"
76 #include "G4EmCorrections.hh" 77 #include "G4EmCorrections.hh"
77 #include "G4IonDEDXHandler.hh" 78 #include "G4IonDEDXHandler.hh"
78 79
79 class G4BraggIonModel; 80 class G4BraggIonModel;
80 class G4BetheBlochModel; 81 class G4BetheBlochModel;
81 class G4ParticleChangeForLoss; 82 class G4ParticleChangeForLoss;
82 class G4VIonDEDXTable; 83 class G4VIonDEDXTable;
83 class G4VIonDEDXScalingAlgorithm; 84 class G4VIonDEDXScalingAlgorithm;
84 class G4PhysicsFreeVector; << 85 class G4LPhysicsFreeVector;
85 class G4MaterialCutsCouple; 86 class G4MaterialCutsCouple;
86 87
87 typedef std::list<G4IonDEDXHandler*> LossTable 88 typedef std::list<G4IonDEDXHandler*> LossTableList;
88 typedef std::pair<const G4ParticleDefinition*, 89 typedef std::pair<const G4ParticleDefinition*,
89 const G4MaterialCutsCouple*> 90 const G4MaterialCutsCouple*> IonMatCouple;
90 91
>> 92
91 class G4IonParametrisedLossModel : public G4VE 93 class G4IonParametrisedLossModel : public G4VEmModel {
92 94
93 public: 95 public:
94 explicit G4IonParametrisedLossModel(const G << 96 G4IonParametrisedLossModel(const G4ParticleDefinition* particle = 0,
95 const G4String& name = "ParamIC << 97 const G4String& name = "ParamICRU73");
96 98
97 virtual ~G4IonParametrisedLossModel(); 99 virtual ~G4IonParametrisedLossModel();
98 100
99 void Initialise( << 101 virtual void Initialise(
100 const G4ParticleDefinition*, // Projecti << 102 const G4ParticleDefinition*, // Projectile
101 const G4DataVector&) override; // Cut en << 103 const G4DataVector&); // Cut energies
102 << 104
103 G4double MinEnergyCut( << 105 virtual G4double MinEnergyCut(
104 const G4ParticleDefinition*, // Project << 106 const G4ParticleDefinition*, // Projectile
105 const G4MaterialCutsCouple*) override; << 107 const G4MaterialCutsCouple*);
106 << 108
107 G4double ComputeCrossSectionPerAtom( << 109 virtual G4double ComputeCrossSectionPerAtom(
108 const G4ParticleDefinition*, // << 110 const G4ParticleDefinition*, // Projectile
109 G4double, // Kinetic energy of << 111 G4double, // Kinetic energy of projectile
110 G4double, // Atomic number << 112 G4double, // Atomic number
111 G4double, // Mass number << 113 G4double, // Mass number
112 G4double, // Energy cut for sec << 114 G4double, // Energy cut for secondary prod.
113 G4double) override; // Maximum e << 115 G4double); // Maximum energy of secondaries
114 << 116
115 G4double CrossSectionPerVolume( << 117 virtual G4double CrossSectionPerVolume(
116 const G4Mater 118 const G4Material*, // Target material
117 const G4ParticleDefinition*, // Proje 119 const G4ParticleDefinition*, // Projectile
118 G4double, // Kinetic energy 120 G4double, // Kinetic energy
119 G4double, // Energy cut for secondar 121 G4double, // Energy cut for secondary prod.
120 G4double) override; // Maximum energy << 122 G4double); // Maximum energy of secondaries
121 123
122 G4double ComputeDEDXPerVolume( << 124 virtual G4double ComputeDEDXPerVolume(
123 const G4Material*, // Target material << 125 const G4Material*, // Target material
124 const G4ParticleDefinition*, // Projec << 126 const G4ParticleDefinition*, // Projectile
125 G4double, // Kinetic energy of projec << 127 G4double, // Kinetic energy of projectile
126 G4double) override; // Energy cut for << 128 G4double); // Energy cut for secondary prod.
127 << 129
128 // Function, which computes the continuous 130 // Function, which computes the continuous energy loss (due to electronic
129 // stopping) for a given pre-step energy an 131 // stopping) for a given pre-step energy and step length by using
130 // range vs energy (and energy vs range) ta 132 // range vs energy (and energy vs range) tables
131 G4double ComputeLossForStep( 133 G4double ComputeLossForStep(
132 const G4Mater 134 const G4MaterialCutsCouple*, // Mat-cuts couple
133 const G4ParticleDefinition*, // Proje 135 const G4ParticleDefinition*, // Projectile
134 G4double, // Kinetic energy of proje 136 G4double, // Kinetic energy of projectile
135 G4double); // Length of current step 137 G4double); // Length of current step
136 138
137 // Function, which computes the mean energy 139 // Function, which computes the mean energy transfer rate to delta rays
138 inline G4double DeltaRayMeanEnergyTransferR 140 inline G4double DeltaRayMeanEnergyTransferRate(
139 const G4Mater 141 const G4Material*, // Target Material
140 const G4ParticleDefinition*, // 142 const G4ParticleDefinition*, // Projectile
141 G4double, // Kinetic energy of proje 143 G4double, // Kinetic energy of projectile
142 G4double); // Energy cut for secondar 144 G4double); // Energy cut for secondary prod.
143 145
144 146
145 void SampleSecondaries(std::vector<G4Dynami << 147 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
146 const G4MaterialCutsCouple*, << 148 const G4MaterialCutsCouple*,
147 const G4DynamicParticle*, << 149 const G4DynamicParticle*,
148 G4double, // Energy cut for secondary << 150 G4double, // Energy cut for secondary prod.
149 G4double) override; // Maximum energy << 151 G4double); // Maximum energy of secondaries
150 152
151 G4double GetChargeSquareRatio( << 153 virtual G4double GetChargeSquareRatio(
152 const G4Parti 154 const G4ParticleDefinition*, // Projectile
153 const G4Material*, // Target Materia 155 const G4Material*, // Target Material
154 G4double) override; // Kinetic energy << 156 G4double); // Kinetic energy of projectile
155 157
156 G4double GetParticleCharge( << 158 virtual G4double GetParticleCharge(
157 const G4ParticleDefinition*, // Pr << 159 const G4ParticleDefinition*, // Projectile
158 const G4Material*, // Target Mate << 160 const G4Material*, // Target Material
159 G4double) override; // Kinetic ene << 161 G4double); // Kinetic energy of projectile
160 << 162
161 void CorrectionsAlongStep( << 163 virtual void CorrectionsAlongStep(
162 const G4MaterialC << 164 const G4MaterialCutsCouple*,// Mat.-Cut couple
163 const G4DynamicParticle*, // Dyn. << 165 const G4DynamicParticle*, // Dyn. particle
164 const G4double&, << 166 G4double&, // Energy loss in current step
165 G4double&) override; // Ener << 167 G4double&,
>> 168 G4double); // Length of current step
166 169
167 // Function which allows to add additional 170 // Function which allows to add additional stopping power tables
168 // in combination with a scaling algorithm, 171 // in combination with a scaling algorithm, which may depend on dynamic
169 // information like the current particle en 172 // information like the current particle energy (the table and scaling
170 // algorithm are used via a handler class, 173 // algorithm are used via a handler class, which performs e.g.caching or
171 // which applies the scaling of energy and 174 // which applies the scaling of energy and dE/dx values)
172 G4bool AddDEDXTable(const G4String& name, 175 G4bool AddDEDXTable(const G4String& name,
173 G4VIonDEDXTable* table, 176 G4VIonDEDXTable* table,
174 G4VIonDEDXScalingAlgorith << 177 G4VIonDEDXScalingAlgorithm* algorithm = 0);
175 178
176 G4bool RemoveDEDXTable(const G4String& name 179 G4bool RemoveDEDXTable(const G4String& name);
177 180
178 // Function which allows to switch off scal 181 // Function which allows to switch off scaling of stopping powers of heavy
179 // ions from existing ICRU 73 data 182 // ions from existing ICRU 73 data
180 // void DeactivateICRU73Scaling(); << 183 void DeactivateICRU73Scaling();
181 184
182 // Function checking the applicability of p 185 // Function checking the applicability of physics tables to ion-material
183 // combinations (Note: the energy range of 186 // combinations (Note: the energy range of tables is not checked)
184 inline LossTableList::iterator IsApplicable 187 inline LossTableList::iterator IsApplicable(
185 const G4ParticleDefiniti 188 const G4ParticleDefinition*, // Projectile (ion)
186 const G4Material*); 189 const G4Material*); // Target material
187 190
188 // Function printing a dE/dx table for a gi 191 // Function printing a dE/dx table for a given ion-material combination
189 // and a specified energy grid 192 // and a specified energy grid
190 void PrintDEDXTable( 193 void PrintDEDXTable(
191 const G4ParticleDefiniti 194 const G4ParticleDefinition*, // Projectile (ion)
192 const G4Material*, // Ab 195 const G4Material*, // Absorber material
193 G4double, // Mi 196 G4double, // Minimum energy per nucleon
194 G4double, // Ma 197 G4double, // Maximum energy per nucleon
195 G4int, // Nu 198 G4int, // Number of bins
196 G4bool); // Lo 199 G4bool); // Logarithmic scaling of energy
197 200
198 // Function printing a dE/dx table for a gi 201 // Function printing a dE/dx table for a given ion-material combination
199 // and a specified energy grid 202 // and a specified energy grid
200 void PrintDEDXTableHandlers( 203 void PrintDEDXTableHandlers(
201 const G4ParticleDefiniti 204 const G4ParticleDefinition*, // Projectile (ion)
202 const G4Material*, // Ab 205 const G4Material*, // Absorber material
203 G4double, // Mi 206 G4double, // Minimum energy per nucleon
204 G4double, // Ma 207 G4double, // Maximum energy per nucleon
205 G4int, // Nu 208 G4int, // Number of bins
206 G4bool); // Lo 209 G4bool); // Logarithmic scaling of energy
207 210
208 // Function for setting energy loss limit f 211 // Function for setting energy loss limit for stopping power integration
209 inline void SetEnergyLossLimit(G4double ion 212 inline void SetEnergyLossLimit(G4double ionEnergyLossLimit);
210 213
211 protected: 214 protected:
>> 215
>> 216 virtual
212 G4double MaxSecondaryEnergy(const G4Particl 217 G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
213 G4double) override; // Kinetic << 218 G4double); // Kinetic energy of projectile
214 219
215 private: 220 private:
216 // Function which updates parameters concer 221 // Function which updates parameters concerning the dE/dx calculation
217 // (the parameters are only updated if the 222 // (the parameters are only updated if the particle, the material or
218 // the associated energy cut has changed) 223 // the associated energy cut has changed)
219 void UpdateDEDXCache( 224 void UpdateDEDXCache(
220 const G4ParticleDefinition*, 225 const G4ParticleDefinition*, // Projectile (ion)
221 const G4Material*, 226 const G4Material*, // Target material
222 G4double cutEnergy); 227 G4double cutEnergy); // Energy cut
223 228
224 // Function which updates parameters concer 229 // Function which updates parameters concerning the range calculation
225 // (the parameters are only updated if the 230 // (the parameters are only updated if the particle, the material or
226 // the associated energy cut has changed) 231 // the associated energy cut has changed)
227 void UpdateRangeCache( 232 void UpdateRangeCache(
228 const G4ParticleDefinition*, 233 const G4ParticleDefinition*, // Projectile (ion)
229 const G4MaterialCutsCouple*) 234 const G4MaterialCutsCouple*); // Target material
230 235
231 // Function, which updates parameters conce 236 // Function, which updates parameters concering particle properties
232 inline void UpdateCache( 237 inline void UpdateCache(
233 const G4ParticleDefinition*) 238 const G4ParticleDefinition*); // Projectile (ion)
234 239
235 // Function, which builds range vs energy ( 240 // Function, which builds range vs energy (and energy vs range) vectors
236 // for a given particle, material and energ 241 // for a given particle, material and energy cut
237 void BuildRangeVector( 242 void BuildRangeVector(
238 const G4ParticleDefinition*, 243 const G4ParticleDefinition*, // Projectile (ion)
239 const G4MaterialCutsCouple*) 244 const G4MaterialCutsCouple*); // Material cuts couple
240 245
241 // Assignment operator and copy constructor 246 // Assignment operator and copy constructor are hidden:
242 G4IonParametrisedLossModel & operator=( 247 G4IonParametrisedLossModel & operator=(
243 const G4IonParam 248 const G4IonParametrisedLossModel &right);
244 G4IonParametrisedLossModel(const G4IonParam 249 G4IonParametrisedLossModel(const G4IonParametrisedLossModel &);
245 250
246 // ######################################## 251 // ######################################################################
247 // # Models and dE/dx tables for computing 252 // # Models and dE/dx tables for computing the energy loss
248 // # 253 // #
249 // ######################################## 254 // ######################################################################
250 255
251 // G4BraggIonModel and G4BetheBlochModel ar 256 // G4BraggIonModel and G4BetheBlochModel are used for ion-target
252 // combinations and/or projectile energies 257 // combinations and/or projectile energies not covered by parametrisations
253 // adopted by this model: 258 // adopted by this model:
254 G4BraggIonModel* braggIonModel; 259 G4BraggIonModel* braggIonModel;
255 G4BetheBlochModel* betheBlochModel; 260 G4BetheBlochModel* betheBlochModel;
256 261
257 // List of dE/dx tables plugged into the mo 262 // List of dE/dx tables plugged into the model
258 LossTableList lossTableList; 263 LossTableList lossTableList;
259 264
260 // ######################################## 265 // ######################################################################
261 // # Maps of Range vs Energy and Energy vs 266 // # Maps of Range vs Energy and Energy vs Range vectors
262 // # 267 // #
263 // ######################################## 268 // ######################################################################
264 269
265 typedef std::map<IonMatCouple, G4PhysicsFre << 270 typedef std::map<IonMatCouple, G4LPhysicsFreeVector*> RangeEnergyTable;
266 RangeEnergyTable r; 271 RangeEnergyTable r;
267 272
268 typedef std::map<IonMatCouple, G4PhysicsFre << 273 typedef std::map<IonMatCouple, G4LPhysicsFreeVector*> EnergyRangeTable;
269 EnergyRangeTable E; 274 EnergyRangeTable E;
270 275
271 // ######################################## 276 // ######################################################################
272 // # Energy grid definitions (e.g. used for 277 // # Energy grid definitions (e.g. used for computing range-energy
273 // # tables) 278 // # tables)
274 // ######################################## 279 // ######################################################################
275 280
276 G4double lowerEnergyEdgeIntegr; 281 G4double lowerEnergyEdgeIntegr;
277 G4double upperEnergyEdgeIntegr; 282 G4double upperEnergyEdgeIntegr;
278 283
279 size_t nmbBins; 284 size_t nmbBins;
280 size_t nmbSubBins; 285 size_t nmbSubBins;
281 286
282 // ######################################## 287 // ######################################################################
283 // # Particle change for loss 288 // # Particle change for loss
284 // # 289 // #
285 // ######################################## 290 // ######################################################################
286 291
287 // Pointer to particle change object, which 292 // Pointer to particle change object, which is used to set e.g. the
288 // energy loss and secondary delta-electron 293 // energy loss and secondary delta-electron
289 // used indicating if model is initialized 294 // used indicating if model is initialized
290 G4ParticleChangeForLoss* particleChangeLoss 295 G4ParticleChangeForLoss* particleChangeLoss;
291 296
292 // ######################################## 297 // ######################################################################
293 // # Corrections and energy loss limit 298 // # Corrections and energy loss limit
294 // # 299 // #
295 // ######################################## 300 // ######################################################################
296 301
297 // Pointer to an G4EmCorrections object, wh 302 // Pointer to an G4EmCorrections object, which is used to compute the
298 // effective ion charge, and other correcti 303 // effective ion charge, and other corrections (like high order corrections
299 // to stopping powers) 304 // to stopping powers)
300 G4EmCorrections* corrections; 305 G4EmCorrections* corrections;
301 306
302 // Corrections factor for effective charge, 307 // Corrections factor for effective charge, computed for each particle
303 // step 308 // step
304 G4double corrFactor; 309 G4double corrFactor;
305 310
306 // Parameter indicating the maximal fractio 311 // Parameter indicating the maximal fraction of kinetic energy, which
307 // a particle may loose along a step, in or 312 // a particle may loose along a step, in order that the simple relation
308 // (dE/dx)*l can still be applied to comput 313 // (dE/dx)*l can still be applied to compute the energy loss (l = step
309 // length) 314 // length)
310 G4double energyLossLimit; 315 G4double energyLossLimit;
311 316
312 // ######################################## 317 // ######################################################################
313 // # Cut energies and properties of generic 318 // # Cut energies and properties of generic ion
314 // # 319 // #
315 // ######################################## 320 // ######################################################################
316 321
317 // Vector containing the current cut energi 322 // Vector containing the current cut energies (the vector index matches
318 // the material-cuts couple index): 323 // the material-cuts couple index):
319 G4DataVector cutEnergies; 324 G4DataVector cutEnergies;
320 325
321 // Pointer to generic ion and mass of gener 326 // Pointer to generic ion and mass of generic ion
322 const G4ParticleDefinition* genericIon; << 327 G4ParticleDefinition* genericIon;
323 G4double genericIonPDGMass; 328 G4double genericIonPDGMass;
324 329
325 // ######################################## 330 // ######################################################################
326 // # "Most-recently-used" cache parameters 331 // # "Most-recently-used" cache parameters
327 // # 332 // #
328 // ######################################## 333 // ######################################################################
329 334
330 // Cached key (particle) and value informat 335 // Cached key (particle) and value information for a faster
331 // access of particle-related information 336 // access of particle-related information
332 const G4ParticleDefinition* cacheParticle; 337 const G4ParticleDefinition* cacheParticle; // Key: Current projectile
333 G4double cacheMass; 338 G4double cacheMass; // Projectile mass
334 G4double cacheElecMassRatio; 339 G4double cacheElecMassRatio; // Electron-mass ratio
335 G4double cacheChargeSquare; 340 G4double cacheChargeSquare; // Charge squared
336 341
337 // Cached parameters needed during range co 342 // Cached parameters needed during range computations:
338 const G4ParticleDefinition* rangeCacheParti 343 const G4ParticleDefinition* rangeCacheParticle; // Key: 1) Current ion,
339 const G4MaterialCutsCouple* rangeCacheMatCu 344 const G4MaterialCutsCouple* rangeCacheMatCutsCouple; // 2) Mat-cuts-couple
340 G4PhysicsVector* rangeCacheEnergyRange; 345 G4PhysicsVector* rangeCacheEnergyRange; // Energy vs range vector
341 G4PhysicsVector* rangeCacheRangeEnergy; 346 G4PhysicsVector* rangeCacheRangeEnergy; // Range vs energy vector
342 347
343 // Cached parameters needed during dE/dx co 348 // Cached parameters needed during dE/dx computations:
344 const G4ParticleDefinition* dedxCachePartic 349 const G4ParticleDefinition* dedxCacheParticle; // Key: 1) Current ion,
345 const G4Material* dedxCacheMaterial; 350 const G4Material* dedxCacheMaterial; // 2) material and
346 G4double dedxCacheEnergyCut; 351 G4double dedxCacheEnergyCut; // 3) cut energy
347 LossTableList::iterator dedxCacheIter; 352 LossTableList::iterator dedxCacheIter; // Responsible dE/dx table
348 G4double dedxCacheTransitionEnergy; // 353 G4double dedxCacheTransitionEnergy; // Transition energy between
349 // 354 // parameterization and
350 // 355 // Bethe-Bloch model
351 G4double dedxCacheTransitionFactor; // 356 G4double dedxCacheTransitionFactor; // Factor for smoothing the dE/dx
352 // 357 // values in the transition region
353 G4double dedxCacheGenIonMassRatio; // 358 G4double dedxCacheGenIonMassRatio; // Ratio of generic ion mass
354 // 359 // and current particle mass
355 G4bool isInitialised; <<
356 }; 360 };
357 361
358 362
359 #include "G4IonParametrisedLossModel.icc" 363 #include "G4IonParametrisedLossModel.icc"
360 364
361 #endif 365 #endif
362 366