Geant4  10.02
G4LossTableBuilder.cc
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26 // $Id: G4LossTableBuilder.cc 92921 2015-09-21 15:06:51Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4LossTableBuilder
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 03.01.2002
38 //
39 // Modifications:
40 //
41 // 23-01-03 V.Ivanchenko Cut per region
42 // 21-07-04 V.Ivanchenko Fix problem of range for dedx=0
43 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko)
44 // 07-12-04 Fix of BuildDEDX table (V.Ivanchenko)
45 // 27-03-06 Add bool options isIonisation (V.Ivanchenko)
46 // 16-01-07 Fill new (not old) DEDX table (V.Ivanchenko)
47 // 12-02-07 Use G4LPhysicsFreeVector for the inverse range table (V.Ivanchenko)
48 // 24-06-09 Removed hidden bin in G4PhysicsVector (V.Ivanchenko)
49 //
50 // Class Description:
51 //
52 // -------------------------------------------------------------------
53 //
54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56 
57 #include "G4LossTableBuilder.hh"
58 #include "G4SystemOfUnits.hh"
59 #include "G4PhysicsTable.hh"
60 #include "G4PhysicsLogVector.hh"
61 #include "G4PhysicsTableHelper.hh"
62 #include "G4LPhysicsFreeVector.hh"
63 #include "G4ProductionCutsTable.hh"
64 #include "G4MaterialCutsCouple.hh"
65 #include "G4Material.hh"
66 #include "G4VEmModel.hh"
67 #include "G4ParticleDefinition.hh"
68 #include "G4LossTableManager.hh"
69 
70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 
73 {
74  splineFlag = true;
75  isInitialized = false;
76 
77  theDensityFactor = new std::vector<G4double>;
78  theDensityIdx = new std::vector<G4int>;
79  theFlag = new std::vector<G4bool>;
80 }
81 
82 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
83 
85 {
86  delete theDensityFactor;
87  delete theDensityIdx;
88  delete theFlag;
89 }
90 
91 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
92 
93 void
95  const std::vector<G4PhysicsTable*>& list)
96 {
97  size_t n_processes = list.size();
98  //G4cout << "Nproc= " << n_processes << " Ncoup= "
99  //<< dedxTable->size() << G4endl;
100  if(1 >= n_processes) { return; }
101 
102  size_t nCouples = dedxTable->size();
103  if(0 >= nCouples) { return; }
104 
105  for (size_t i=0; i<nCouples; ++i) {
106  // if ((*theFlag)[i]) {
107  G4PhysicsLogVector* pv0 =
108  static_cast<G4PhysicsLogVector*>((*(list[0]))[i]);
109  if(pv0) {
110  size_t npoints = pv0->GetVectorLength();
111  G4PhysicsLogVector* pv = new G4PhysicsLogVector(*pv0);
112  pv->SetSpline(splineFlag);
113  for (size_t j=0; j<npoints; ++j) {
114  G4double dedx = 0.0;
115  for (size_t k=0; k<n_processes; ++k) {
116  G4PhysicsVector* pv1 = (*(list[k]))[i];
117  dedx += (*pv1)[j];
118  }
119  pv->PutValue(j, dedx);
120  }
121  if(splineFlag) { pv->FillSecondDerivatives(); }
122  G4PhysicsTableHelper::SetPhysicsVector(dedxTable, i, pv);
123  }
124  }
125 }
126 
127 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
128 
130  G4PhysicsTable* rangeTable,
131  G4bool isIonisation)
132 // Build range table from the energy loss table
133 {
134  size_t nCouples = dedxTable->size();
135  if(0 >= nCouples) { return; }
136 
137  size_t n = 100;
138  G4double del = 1.0/(G4double)n;
139 
140  for (size_t i=0; i<nCouples; ++i) {
141  if(isIonisation) {
142  if( !(*theFlag)[i] ) { continue; }
143  }
144  G4PhysicsLogVector* pv = static_cast<G4PhysicsLogVector*>((*dedxTable)[i]);
145  size_t npoints = pv->GetVectorLength();
146  size_t bin0 = 0;
147  G4double elow = pv->Energy(0);
148  G4double ehigh = pv->Energy(npoints-1);
149  G4double dedx1 = (*pv)[0];
150 
151  //G4cout << "i= " << i << "npoints= " << npoints << " dedx1= "
152  //<< dedx1 << G4endl;
153 
154  // protection for specific cases dedx=0
155  if(dedx1 == 0.0) {
156  for (size_t k=1; k<npoints; ++k) {
157  bin0++;
158  elow = pv->Energy(k);
159  dedx1 = (*pv)[k];
160  if(dedx1 > 0.0) { break; }
161  }
162  npoints -= bin0;
163  }
164  //G4cout<<"New Range vector" << G4endl;
165  //G4cout<<"nbins= "<<npoints-1<<" elow= "<<elow<<" ehigh= "<<ehigh
166  // <<" bin0= " << bin0 <<G4endl;
167 
168  // initialisation of a new vector
169  if(npoints < 2) { npoints = 2; }
170 
171  delete (*rangeTable)[i];
173  if(0 == bin0) { v = new G4PhysicsLogVector(*pv); }
174  else { v = new G4PhysicsLogVector(elow, ehigh, npoints-1); }
175 
176  // dedx is exact zero cannot build range table
177  if(2 == npoints) {
178  v->PutValue(0,1000.);
179  v->PutValue(1,2000.);
180  G4PhysicsTableHelper::SetPhysicsVector(rangeTable, i, v);
181  return;
182  }
183  v->SetSpline(splineFlag);
184 
185  // assumed dedx proportional to beta
186  G4double energy1 = v->Energy(0);
187  G4double range = 2.*energy1/dedx1;
188  //G4cout << "range0= " << range << G4endl;
189  v->PutValue(0,range);
190 
191  for (size_t j=1; j<npoints; ++j) {
192 
193  G4double energy2 = v->Energy(j);
194  G4double de = (energy2 - energy1) * del;
195  G4double energy = energy2 + de*0.5;
196  G4double sum = 0.0;
197  //G4cout << "j= " << j << " e1= " << energy1 << " e2= " << energy2
198  // << " n= " << n << G4endl;
199  for (size_t k=0; k<n; ++k) {
200  energy -= de;
201  dedx1 = pv->Value(energy);
202  if(dedx1 > 0.0) { sum += de/dedx1; }
203  }
204  range += sum;
205  v->PutValue(j,range);
206  energy1 = energy2;
207  }
208  if(splineFlag) { v->FillSecondDerivatives(); }
209  G4PhysicsTableHelper::SetPhysicsVector(rangeTable, i, v);
210  }
211 }
212 
213 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
214 
215 void
217  G4PhysicsTable* invRangeTable,
218  G4bool isIonisation)
219 // Build inverse range table from the energy loss table
220 {
221  size_t nCouples = rangeTable->size();
222  if(0 >= nCouples) { return; }
223 
224  for (size_t i=0; i<nCouples; ++i) {
225 
226  if(isIonisation) {
227  if( !(*theFlag)[i] ) { continue; }
228  }
229  G4PhysicsVector* pv = (*rangeTable)[i];
230  size_t npoints = pv->GetVectorLength();
231  G4double rlow = (*pv)[0];
232  G4double rhigh = (*pv)[npoints-1];
233 
234  delete (*invRangeTable)[i];
235  G4LPhysicsFreeVector* v = new G4LPhysicsFreeVector(npoints,rlow,rhigh);
236  v->SetSpline(splineFlag);
237 
238  for (size_t j=0; j<npoints; ++j) {
239  G4double e = pv->Energy(j);
240  G4double r = (*pv)[j];
241  v->PutValues(j,r,e);
242  }
243  if(splineFlag) { v->FillSecondDerivatives(); }
244 
245  G4PhysicsTableHelper::SetPhysicsVector(invRangeTable, i, v);
246  }
247 }
248 
249 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
250 
251 void
253 {
254  size_t nCouples = table->size();
255  size_t nFlags = theFlag->size();
256 
257  if(nCouples == nFlags && isInitialized) { return; }
258 
259  isInitialized = true;
260 
261  //G4cout << "%%%%%% G4LossTableBuilder::InitialiseBaseMaterials Ncouples= "
262  // << nCouples << " FlagSize= " << nFlags << G4endl;
263 
264  // variable density check
265  const G4ProductionCutsTable* theCoupleTable=
267 
268  /*
269  for(size_t i=0; i<nFlags; ++i) {
270  G4cout << "CoupleIdx= " << i << " Flag= " << (*theFlag)[i]
271  << " tableFlag= " << table->GetFlag(i) << " "
272  << theCoupleTable->GetMaterialCutsCouple(i)->GetMaterial()->GetName()
273  << G4endl;
274  }
275  */
276 
277  // expand vectors
278  if(nFlags < nCouples) {
279  for(size_t i=nFlags; i<nCouples; ++i) {
280  theDensityFactor->push_back(1.0);
281  }
282  for(size_t i=nFlags; i<nCouples; ++i) { theDensityIdx->push_back(-1); }
283  for(size_t i=nFlags; i<nCouples; ++i) { theFlag->push_back(true); }
284  }
285  for(size_t i=0; i<nCouples; ++i) {
286 
287  // base material is needed only for a couple which is not
288  // initialised and for which tables will be computed
289  (*theFlag)[i] = table->GetFlag(i);
290  if ((*theDensityIdx)[i] < 0) {
291  (*theDensityIdx)[i] = i;
292  const G4MaterialCutsCouple* couple =
293  theCoupleTable->GetMaterialCutsCouple(i);
294  const G4ProductionCuts* pcuts = couple->GetProductionCuts();
295  const G4Material* mat = couple->GetMaterial();
296  const G4Material* bmat = mat->GetBaseMaterial();
297 
298  // base material exists - find it and check if it can be reused
299  if(bmat) {
300  for(size_t j=0; j<nCouples; ++j) {
301 
302  if(j == i) { continue; }
303  const G4MaterialCutsCouple* bcouple =
304  theCoupleTable->GetMaterialCutsCouple(j);
305 
306  if(bcouple->GetMaterial() == bmat &&
307  bcouple->GetProductionCuts() == pcuts) {
308 
309  // based couple exist in the same region
310  (*theDensityIdx)[i] = j;
311  (*theDensityFactor)[i] = mat->GetDensity()/bmat->GetDensity();
312  (*theFlag)[i] = false;
313 
314  // ensure that there will no double initialisation
315  (*theDensityIdx)[j] = j;
316  (*theDensityFactor)[j] = 1.0;
317  (*theFlag)[j] = true;
318  break;
319  }
320  }
321  }
322  }
323  }
324  /*
325  for(size_t i=0; i<nCouples; ++i) {
326  G4cout << "CoupleIdx= " << i << " Flag= " << (*theFlag)[i]
327  << " TableFlag= " << table->GetFlag(i) << " "
328  << theCoupleTable->GetMaterialCutsCouple(i)->GetMaterial()->GetName()
329  << G4endl;
330  }
331  G4cout << "%%%%%% G4LossTableBuilder::InitialiseBaseMaterials end"
332  << G4endl;
333  */
334 }
335 
336 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
337 
339 {
340  isInitialized = true;
341 
342  // variable density initialisation for the cas without tables
343  const G4ProductionCutsTable* theCoupleTable=
345  size_t nCouples = theCoupleTable->GetTableSize();
346  //G4cout << "%%%%%% G4LossTableBuilder::InitialiseCouples() nCouples= "
347  // << nCouples << G4endl;
348 
349  theDensityFactor->resize(nCouples, 1.0);
350  theDensityIdx->resize(nCouples, -1);
351  theFlag->resize(nCouples, true);
352 
353  for(size_t i=0; i<nCouples; ++i) {
354 
355  // base material is needed only for a couple which is not
356  // initialised and for which tables will be computed
357  if ((*theDensityIdx)[i] < 0) {
358  (*theDensityIdx)[i] = i;
359  const G4MaterialCutsCouple* couple =
360  theCoupleTable->GetMaterialCutsCouple(i);
361  const G4ProductionCuts* pcuts = couple->GetProductionCuts();
362  const G4Material* mat = couple->GetMaterial();
363  const G4Material* bmat = mat->GetBaseMaterial();
364 
365  // base material exists - find it and check if it can be reused
366  if(bmat) {
367  for(size_t j=0; j<nCouples; ++j) {
368 
369  if(j == i) { continue; }
370  const G4MaterialCutsCouple* bcouple =
371  theCoupleTable->GetMaterialCutsCouple(j);
372 
373  if(bcouple->GetMaterial() == bmat &&
374  bcouple->GetProductionCuts() == pcuts) {
375 
376  // based couple exist in the same region
377  (*theDensityIdx)[i] = j;
378  (*theDensityFactor)[i] = mat->GetDensity()/bmat->GetDensity();
379  (*theFlag)[i] = false;
380 
381  // ensure that there will no double initialisation
382  (*theDensityIdx)[j] = j;
383  (*theDensityFactor)[j] = 1.0;
384  (*theFlag)[j] = true;
385  break;
386  }
387  }
388  }
389  }
390  }
391  /*
392  for(size_t i=0; i<nCouples; ++i) {
393  G4cout << "CoupleIdx= " << i << " Flag= " << (*theFlag)[i] << " "
394  << theCoupleTable->GetMaterialCutsCouple(i)->GetMaterial()->GetName()
395  << " DensityFactor= " << (*theDensityFactor)[i]
396  << G4endl;
397  }
398  G4cout << "%%%%%% G4LossTableBuilder::InitialiseCouples() end" << G4endl;
399  */
400 }
401 
402 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
403 
406  G4VEmModel* model,
407  const G4ParticleDefinition* part,
408  G4double emin, G4double emax,
409  G4bool spline)
410 {
411  // check input
413  if(!table) { return table; }
414  if(emin >= emax) {
415  table->clearAndDestroy();
416  delete table;
417  table = 0;
418  return table;
419  }
421 
423 
424  // Access to materials
425  const G4ProductionCutsTable* theCoupleTable=
427  size_t numOfCouples = theCoupleTable->GetTableSize();
428 
429  G4PhysicsLogVector* aVector = 0;
430 
431  for(size_t i=0; i<numOfCouples; ++i) {
432 
433  //G4cout<< "i= " << i << " Flag= " << GetFlag(i) << G4endl;
434 
435  if (GetFlag(i)) {
436 
437  // create physics vector and fill it
438  const G4MaterialCutsCouple* couple =
439  theCoupleTable->GetMaterialCutsCouple(i);
440  delete (*table)[i];
441 
442  // if start from zero then change the scale
443 
444  const G4Material* mat = couple->GetMaterial();
445 
446  G4double tmin = std::max(emin,model->MinPrimaryEnergy(mat,part));
447  if(0.0 >= tmin) { tmin = eV; }
448  G4int n = nbins;
449 
450  if(tmin >= emax) {
451  aVector = 0;
452  } else {
453  n *= G4int(std::log10(emax/tmin) + 0.5);
454  if(n < 3) { n = 3; }
455  aVector = new G4PhysicsLogVector(tmin, emax, n);
456  }
457 
458  if(aVector) {
459  aVector->SetSpline(spline);
460  for(G4int j=0; j<=n; ++j) {
461  aVector->PutValue(j, model->Value(couple, part,
462  aVector->Energy(j)));
463  }
464  if(spline) { aVector->FillSecondDerivatives(); }
465  }
466  G4PhysicsTableHelper::SetPhysicsVector(table, i, aVector);
467  }
468  }
469  /*
470  G4cout << "G4LossTableBuilder::BuildTableForModel done for "
471  << part->GetParticleName() << " and "<< model->GetName()
472  << " " << table << G4endl;
473  */
474  return table;
475 }
476 
477 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
478 
void BuildRangeTable(const G4PhysicsTable *dedxTable, G4PhysicsTable *rangeTable, G4bool isIonisation=false)
void PutValues(size_t binNumber, G4double binValue, G4double dataValue)
static void SetPhysicsVector(G4PhysicsTable *physTable, size_t idx, G4PhysicsVector *vec)
static G4LossTableManager * Instance()
std::vector< G4int > * theDensityIdx
G4PhysicsTable * BuildTableForModel(G4PhysicsTable *table, G4VEmModel *model, const G4ParticleDefinition *, G4double emin, G4double emax, G4bool spline)
virtual G4double MinPrimaryEnergy(const G4Material *, const G4ParticleDefinition *, G4double cut=0.0)
Definition: G4VEmModel.cc:378
G4double GetDensity() const
Definition: G4Material.hh:180
G4bool GetFlag(size_t idx) const
size_t GetVectorLength() const
int G4int
Definition: G4Types.hh:78
void FillSecondDerivatives()
static G4PhysicsTable * PreparePhysicsTable(G4PhysicsTable *physTable)
void SetSpline(G4bool)
bool G4bool
Definition: G4Types.hh:79
void PutValue(size_t index, G4double theValue)
const G4int n
void BuildInverseRangeTable(const G4PhysicsTable *rangeTable, G4PhysicsTable *invRangeTable, G4bool isIonisation=false)
G4double Energy(size_t index) const
G4double Value(G4double theEnergy, size_t &lastidx) const
static const G4double emax
void BuildDEDXTable(G4PhysicsTable *dedxTable, const std::vector< G4PhysicsTable * > &)
static G4ProductionCutsTable * GetProductionCutsTable()
static const double eV
Definition: G4SIunits.hh:212
const G4MaterialCutsCouple * GetMaterialCutsCouple(G4int i) const
std::vector< G4double > * theDensityFactor
T max(const T t1, const T t2)
brief Return the largest of the two arguments
void InitialiseBaseMaterials(G4PhysicsTable *table)
G4int GetNumberOfBinsPerDecade() const
G4double energy(const ThreeVector &p, const G4double m)
std::vector< G4bool > * theFlag
const G4Material * GetBaseMaterial() const
Definition: G4Material.hh:233
G4bool GetFlag(size_t i) const
double G4double
Definition: G4Types.hh:76
G4ProductionCuts * GetProductionCuts() const
void clearAndDestroy()
virtual G4double Value(const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy)
Definition: G4VEmModel.cc:369
const G4Material * GetMaterial() const