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25 // 25 //
>> 26 // $Id: G4PenelopeBremsstrahlungFS.cc,v 1.1 2010-12-20 14:11:37 pandola Exp $
>> 27 // GEANT4 tag $Name: not supported by cvs2svn $
26 // 28 //
27 // Author: Luciano Pandola 29 // Author: Luciano Pandola
28 // 30 //
29 // History: 31 // History:
30 // -------- 32 // --------
31 // 23 Nov 2010 L Pandola First complete i 33 // 23 Nov 2010 L Pandola First complete implementation
32 // 02 May 2011 L.Pandola Remove dependenc 34 // 02 May 2011 L.Pandola Remove dependency on CLHEP::HepMatrix
33 // 24 May 2011 L.Pandola Renamed (make v2 << 35 // 24 May 2011 L. Pandola Renamed (make v2008 as default Penelope)
34 // 03 Oct 2013 L.Pandola Migration to MT <<
35 // 30 Oct 2013 L.Pandola Use G4Cache to a <<
36 // data vector on <<
37 // 36 //
38 37
39 //....oooOO0OOooo........oooOO0OOooo........oo 38 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 39
40 #include "G4PenelopeBremsstrahlungFS.hh" 40 #include "G4PenelopeBremsstrahlungFS.hh"
41 #include "G4PhysicsFreeVector.hh" 41 #include "G4PhysicsFreeVector.hh"
>> 42 #include "G4PhysicsLogVector.hh"
42 #include "G4PhysicsTable.hh" 43 #include "G4PhysicsTable.hh"
43 #include "G4Material.hh" 44 #include "G4Material.hh"
44 #include "Randomize.hh" 45 #include "Randomize.hh"
45 #include "G4AutoDelete.hh" <<
46 #include "G4Exp.hh" <<
47 #include "G4PhysicalConstants.hh" <<
48 #include "G4SystemOfUnits.hh" <<
49 46
50 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
51 48
52 G4PenelopeBremsstrahlungFS::G4PenelopeBremsstr << 49 G4PenelopeBremsstrahlungFS::G4PenelopeBremsstrahlungFS() :
53 fReducedXSTable(nullptr),fEffectiveZSq(nullp << 50 theReducedXSTable(0),theEffectiveZSq(0),theSamplingTable(0),
54 fPBcut(nullptr),fVerbosity(verbosity) << 51 thePBcut(0)
55 { 52 {
56 fCache.Put(0); << 53 G4double tempvector[nBinsX] =
57 G4double tempvector[fNBinsX] = <<
58 {1.0e-12,0.025e0,0.05e0,0.075e0,0.1e0,0.15 54 {1.0e-12,0.025e0,0.05e0,0.075e0,0.1e0,0.15e0,0.2e0,0.25e0,
59 0.3e0,0.35e0,0.4e0,0.45e0,0.5e0,0.55e0,0.6 55 0.3e0,0.35e0,0.4e0,0.45e0,0.5e0,0.55e0,0.6e0,0.65e0,0.7e0,
60 0.75e0,0.8e0,0.85e0,0.9e0,0.925e0,0.95e0,0 56 0.75e0,0.8e0,0.85e0,0.9e0,0.925e0,0.95e0,0.97e0,0.99e0,
61 0.995e0,0.999e0,0.9995e0,0.9999e0,0.99995e 57 0.995e0,0.999e0,0.9995e0,0.9999e0,0.99995e0,0.99999e0,1.0e0};
62 58
63 for (std::size_t ix=0;ix<fNBinsX;++ix) << 59 for (size_t ix=0;ix<nBinsX;ix++)
64 theXGrid[ix] = tempvector[ix]; 60 theXGrid[ix] = tempvector[ix];
65 61
66 for (std::size_t i=0;i<fNBinsE;++i) << 62 for (size_t i=0;i<nBinsE;i++)
67 theEGrid[i] = 0.; 63 theEGrid[i] = 0.;
68 64
69 fElementData = new std::map<G4int,G4DataVect << 65 theElementData = new std::map<const G4int,G4DataVector*>;
70 } 66 }
71 67
72 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
73 69
74 G4PenelopeBremsstrahlungFS::~G4PenelopeBremsst 70 G4PenelopeBremsstrahlungFS::~G4PenelopeBremsstrahlungFS()
75 { 71 {
76 ClearTables(); 72 ClearTables();
77 73
78 //The G4Physics*Vector pointers contained in << 74 //Clear manually theElementData
79 //the G4AutoDelete so there is no need to ta << 75 std::map<const G4int,G4DataVector*>::iterator i;
80 << 76 if (theElementData)
81 //Clear manually fElementData << 77 {
82 if (fElementData) << 78 for (i=theElementData->begin(); i != theElementData->end(); i++)
83 { << 79 delete i->second;
84 for (auto& item : (*fElementData)) << 80 delete theElementData;
85 delete item.second; << 81 theElementData = 0;
86 delete fElementData; <<
87 fElementData = nullptr; <<
88 } 82 }
>> 83
89 } 84 }
90 85
91 //....oooOO0OOooo........oooOO0OOooo........oo 86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
92 87
93 88
94 void G4PenelopeBremsstrahlungFS::ClearTables(G << 89 void G4PenelopeBremsstrahlungFS::ClearTables()
95 { << 90 {
96 //Just to check << 91 std::map< std::pair<const G4Material*,G4double> ,G4PhysicsTable*>::iterator j;
97 if (!isMaster) <<
98 G4Exception("G4PenelopeBremsstrahlungFS::C <<
99 "em0100",FatalException,"Worker thread in <<
100 92
101 if (fReducedXSTable) << 93 if (theReducedXSTable)
102 { 94 {
103 for (auto& item : (*fReducedXSTable)) << 95 for (j=theReducedXSTable->begin(); j != theReducedXSTable->end(); j++)
104 { 96 {
105 G4PhysicsTable* tab = item.second; << 97 G4PhysicsTable* tab = j->second;
106 tab->clearAndDestroy(); 98 tab->clearAndDestroy();
107 delete tab; << 99 delete tab;
108 } 100 }
109 fReducedXSTable->clear(); << 101 delete theReducedXSTable;
110 delete fReducedXSTable; << 102 theReducedXSTable = 0;
111 fReducedXSTable = nullptr; <<
112 } 103 }
113 104
114 if (fSamplingTable) << 105 if (theSamplingTable)
115 { 106 {
116 for (auto& item : (*fSamplingTable)) << 107 for (j=theSamplingTable->begin(); j != theSamplingTable->end(); j++)
117 { 108 {
118 G4PhysicsTable* tab = item.second; << 109 G4PhysicsTable* tab = j->second;
119 tab->clearAndDestroy(); 110 tab->clearAndDestroy();
120 delete tab; 111 delete tab;
121 } 112 }
122 fSamplingTable->clear(); << 113 delete theSamplingTable;
123 delete fSamplingTable; << 114 theSamplingTable = 0;
124 fSamplingTable = nullptr; <<
125 } <<
126 if (fPBcut) <<
127 { <<
128 /* <<
129 std::map< std::pair<const G4Material*,G4doub <<
130 for (kk=fPBcut->begin(); kk != fPBcut->end() <<
131 delete kk->second; <<
132 */ <<
133 delete fPBcut; <<
134 fPBcut = nullptr; <<
135 } 115 }
136 116
137 if (fEffectiveZSq) << 117 std::map< std::pair<const G4Material*,G4double> ,G4PhysicsFreeVector*>::iterator kk;
>> 118 if (thePBcut)
138 { 119 {
139 delete fEffectiveZSq; << 120 for (kk=thePBcut->begin(); kk != thePBcut->end(); kk++)
140 fEffectiveZSq = nullptr; << 121 delete kk->second;
>> 122 delete thePBcut;
>> 123 thePBcut = 0;
141 } 124 }
142 125
>> 126
>> 127 if (theEffectiveZSq)
>> 128 {
>> 129 delete theEffectiveZSq;
>> 130 theEffectiveZSq = 0;
>> 131 }
>> 132
143 return; 133 return;
144 } 134 }
145 135
146 //....oooOO0OOooo........oooOO0OOooo........oo 136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
147 137
148 G4double G4PenelopeBremsstrahlungFS::GetEffect << 138 G4double G4PenelopeBremsstrahlungFS::GetEffectiveZSquared(const G4Material* material)
149 { 139 {
150 if (!fEffectiveZSq) << 140 if (!theEffectiveZSq)
151 { 141 {
152 G4ExceptionDescription ed; 142 G4ExceptionDescription ed;
153 ed << "The container for the <Z^2> value 143 ed << "The container for the <Z^2> values is not initialized" << G4endl;
154 G4Exception("G4PenelopeBremsstrahlungFS: 144 G4Exception("G4PenelopeBremsstrahlungFS::GetEffectiveZSquared()",
155 "em2007",FatalException,ed); 145 "em2007",FatalException,ed);
156 return 0; 146 return 0;
157 } 147 }
158 //found in the table: return it << 148 //found in the table: return it
159 if (fEffectiveZSq->count(material)) << 149 if (theEffectiveZSq->count(material))
160 return fEffectiveZSq->find(material)->seco << 150 return theEffectiveZSq->find(material)->second;
161 else 151 else
162 { 152 {
163 G4ExceptionDescription ed; 153 G4ExceptionDescription ed;
164 ed << "The value of <Z^2> is not proper << 154 ed << "The value of <Z^2> is not properly set for material " <<
165 material->GetName() << G4endl; 155 material->GetName() << G4endl;
166 //requires running of BuildScaledXSTable 156 //requires running of BuildScaledXSTable()
167 G4Exception("G4PenelopeBremsstrahlungFS: 157 G4Exception("G4PenelopeBremsstrahlungFS::GetEffectiveZSquared()",
168 "em2008",FatalException,ed); 158 "em2008",FatalException,ed);
169 } 159 }
170 return 0; 160 return 0;
171 } 161 }
172 162
173 //....oooOO0OOooo........oooOO0OOooo........oo 163 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
174 164
175 void G4PenelopeBremsstrahlungFS::BuildScaledXS 165 void G4PenelopeBremsstrahlungFS::BuildScaledXSTable(const G4Material* material,
176 G4double cut,G4bool isMaster) << 166 G4double cut)
177 { 167 {
178 //Corresponds to subroutines EBRaW and EBRaR 168 //Corresponds to subroutines EBRaW and EBRaR of PENELOPE
179 /* 169 /*
180 This method generates the table of the sca << 170 This method generates the table of the scaled energy-loss cross section from
181 bremsstrahlung emission for the given mate << 171 bremsstrahlung emission for the given material. Original data are read from
182 file. The table is normalized according to 172 file. The table is normalized according to the Berger-Seltzer cross section.
183 */ 173 */
184 174
185 //Just to check << 175 //*********************************************************************
186 if (!isMaster) <<
187 G4Exception("G4PenelopeBremsstrahlungFS::B <<
188 "em0100",FatalException,"Worker thread in <<
189 <<
190 if (fVerbosity > 2) <<
191 { <<
192 G4cout << "Entering in G4PenelopeBremsst <<
193 material->GetName() << G4endl; <<
194 G4cout << "Threshold = " << cut/keV << " <<
195 G4endl; <<
196 } <<
197 <<
198 //This method should be accessed by the mast <<
199 if (!fSamplingTable) <<
200 fSamplingTable = <<
201 new std::map< std::pair<const G4Material <<
202 if (!fPBcut) <<
203 fPBcut = <<
204 new std::map< std::pair<const G4Material <<
205 <<
206 //check if the container exists (if not, cre <<
207 if (!fReducedXSTable) <<
208 fReducedXSTable = new std::map< std::pair< <<
209 G4PhysicsTable*>; <<
210 if (!fEffectiveZSq) <<
211 fEffectiveZSq = new std::map<const G4Mater <<
212 <<
213 //****************************************** <<
214 //Determine the equivalent atomic number <Z^ 176 //Determine the equivalent atomic number <Z^2>
215 //****************************************** 177 //*********************************************************************
216 std::vector<G4double> *StechiometricFactors 178 std::vector<G4double> *StechiometricFactors = new std::vector<G4double>;
217 std::size_t nElements = material->GetNumberO << 179 G4int nElements = material->GetNumberOfElements();
218 const G4ElementVector* elementVector = mater 180 const G4ElementVector* elementVector = material->GetElementVector();
219 const G4double* fractionVector = material->G 181 const G4double* fractionVector = material->GetFractionVector();
220 for (std::size_t i=0;i<nElements;i++) << 182 for (G4int i=0;i<nElements;i++)
221 { 183 {
222 G4double fraction = fractionVector[i]; 184 G4double fraction = fractionVector[i];
223 G4double atomicWeigth = (*elementVector) 185 G4double atomicWeigth = (*elementVector)[i]->GetA()/(g/mole);
224 StechiometricFactors->push_back(fraction 186 StechiometricFactors->push_back(fraction/atomicWeigth);
225 } << 187 }
226 //Find max 188 //Find max
227 G4double MaxStechiometricFactor = 0.; 189 G4double MaxStechiometricFactor = 0.;
228 for (std::size_t i=0;i<nElements;i++) << 190 for (G4int i=0;i<nElements;i++)
229 { 191 {
230 if ((*StechiometricFactors)[i] > MaxStec 192 if ((*StechiometricFactors)[i] > MaxStechiometricFactor)
231 MaxStechiometricFactor = (*Stechiometr 193 MaxStechiometricFactor = (*StechiometricFactors)[i];
232 } 194 }
233 //Normalize 195 //Normalize
234 for (std::size_t i=0;i<nElements;i++) << 196 for (G4int i=0;i<nElements;i++)
235 (*StechiometricFactors)[i] /= MaxStechiom 197 (*StechiometricFactors)[i] /= MaxStechiometricFactor;
236 << 198
237 G4double sumz2 = 0; 199 G4double sumz2 = 0;
238 G4double sums = 0; 200 G4double sums = 0;
239 for (std::size_t i=0;i<nElements;i++) << 201 for (G4int i=0;i<nElements;i++)
240 { 202 {
241 G4double Z = (*elementVector)[i]->GetZ() 203 G4double Z = (*elementVector)[i]->GetZ();
242 sumz2 += (*StechiometricFactors)[i]*Z*Z; 204 sumz2 += (*StechiometricFactors)[i]*Z*Z;
243 sums += (*StechiometricFactors)[i]; 205 sums += (*StechiometricFactors)[i];
244 } 206 }
245 G4double ZBR2 = sumz2/sums; 207 G4double ZBR2 = sumz2/sums;
246 << 208
247 fEffectiveZSq->insert(std::make_pair(materia << 209 theEffectiveZSq->insert(std::make_pair(material,ZBR2));
>> 210
248 211
249 //****************************************** 212 //*********************************************************************
250 // loop on elements and read data files 213 // loop on elements and read data files
251 //****************************************** 214 //*********************************************************************
252 G4DataVector* tempData = new G4DataVector(fN << 215 G4DataVector* tempData = new G4DataVector(nBinsE);
253 G4DataVector* tempMatrix = new G4DataVector( << 216 G4DataVector* tempMatrix = new G4DataVector(nBinsE*nBinsX,0.);
254 217
255 for (std::size_t iel=0;iel<nElements;iel++) << 218 for (G4int iel=0;iel<nElements;iel++)
256 { 219 {
257 G4double Z = (*elementVector)[iel]->GetZ 220 G4double Z = (*elementVector)[iel]->GetZ();
258 G4int iZ = (G4int) Z; 221 G4int iZ = (G4int) Z;
259 G4double wgt = (*StechiometricFactors)[i 222 G4double wgt = (*StechiometricFactors)[iel]*Z*Z/ZBR2;
260 << 223 //
>> 224
261 //the element is not already loaded 225 //the element is not already loaded
262 if (!fElementData->count(iZ)) << 226 if (!theElementData->count(iZ))
263 { 227 {
264 ReadDataFile(iZ); 228 ReadDataFile(iZ);
265 if (!fElementData->count(iZ)) << 229 if (!theElementData->count(iZ))
266 { 230 {
267 G4ExceptionDescription ed; 231 G4ExceptionDescription ed;
268 ed << "Error in G4PenelopeBremsstrahlu 232 ed << "Error in G4PenelopeBremsstrahlungFS::BuildScaledXSTable" << G4endl;
269 ed << "Unable to retrieve data for ele 233 ed << "Unable to retrieve data for element " << iZ << G4endl;
270 G4Exception("G4PenelopeBremsstrahlungF 234 G4Exception("G4PenelopeBremsstrahlungFS::BuildScaledXSTable()",
271 "em2009",FatalException,ed); 235 "em2009",FatalException,ed);
272 } 236 }
273 } 237 }
274 238
275 G4DataVector* atomData = fElementData->f << 239 G4DataVector* atomData = theElementData->find(iZ)->second;
276 << 240
277 for (std::size_t ie=0;ie<fNBinsE;++ie) << 241 for (size_t ie=0;ie<nBinsE;ie++)
278 { << 242 {
279 (*tempData)[ie] += wgt*(*atomData)[ie*(fNB << 243 (*tempData)[ie] += wgt*(*atomData)[ie*(nBinsX+1)+nBinsX]; //last column contains total XS
280 for (std::size_t ix=0;ix<fNBinsX;++ix) << 244 for (size_t ix=0;ix<nBinsX;ix++)
281 (*tempMatrix)[ie*fNBinsX+ix] += wgt*(*at << 245 (*tempMatrix)[ie*nBinsX+ix] += wgt*(*atomData)[ie*(nBinsX+1)+ix];
282 } 246 }
283 } 247 }
284 248
285 //****************************************** 249 //*********************************************************************
286 // the total energy loss spectrum is re-norm << 250 // the total energy loss spectrum is re-normalized to reproduce the total
287 // scaled cross section of Berger and Seltze 251 // scaled cross section of Berger and Seltzer
288 //****************************************** 252 //*********************************************************************
289 for (std::size_t ie=0;ie<fNBinsE;++ie) << 253 for (size_t ie=0;ie<nBinsE;ie++)
290 { 254 {
291 //for each energy, calculate integral of 255 //for each energy, calculate integral of dSigma/dx over dx
292 G4double* tempData2 = new G4double[fNBin << 256 G4double* tempData2 = new G4double[nBinsX];
293 for (std::size_t ix=0;ix<fNBinsX;++ix) << 257 for (size_t ix=0;ix<nBinsX;ix++)
294 tempData2[ix] = (*tempMatrix)[ie*fNBinsX+ix] << 258 tempData2[ix] = (*tempMatrix)[ie*nBinsX+ix];
295 G4double rsum = GetMomentumIntegral(temp 259 G4double rsum = GetMomentumIntegral(tempData2,1.0,0);
296 delete[] tempData2; << 260 delete[] tempData2;
297 G4double fact = millibarn*(theEGrid[ie]+ 261 G4double fact = millibarn*(theEGrid[ie]+electron_mass_c2)*(1./fine_structure_const)/
298 (classic_electr_radius*classic_electr_radius 262 (classic_electr_radius*classic_electr_radius*(theEGrid[ie]+2.0*electron_mass_c2));
299 G4double fnorm = (*tempData)[ie]/(rsum*f 263 G4double fnorm = (*tempData)[ie]/(rsum*fact);
300 G4double TST = 100.*std::fabs(fnorm-1.0) 264 G4double TST = 100.*std::fabs(fnorm-1.0);
301 if (TST > 1.0) 265 if (TST > 1.0)
302 { 266 {
303 G4ExceptionDescription ed; 267 G4ExceptionDescription ed;
304 ed << "G4PenelopeBremsstrahlungFS. Corrupt 268 ed << "G4PenelopeBremsstrahlungFS. Corrupted data files?" << G4endl;
305 G4cout << "TST= " << TST << "; fnorm = " < 269 G4cout << "TST= " << TST << "; fnorm = " << fnorm << G4endl;
306 G4cout << "rsum = " << rsum << G4endl; 270 G4cout << "rsum = " << rsum << G4endl;
307 G4cout << "fact = " << fact << G4endl; 271 G4cout << "fact = " << fact << G4endl;
308 G4cout << ie << " " << theEGrid[ie]/keV << 272 G4cout << ie << " " << theEGrid[ie]/keV << " " << (*tempData)[ie]/barn << G4endl;
309 G4Exception("G4PenelopeBremsstrahlungFS::B 273 G4Exception("G4PenelopeBremsstrahlungFS::BuildScaledXSTable()",
310 "em2010",FatalException,ed); 274 "em2010",FatalException,ed);
311 } << 275 }
312 for (std::size_t ix=0;ix<fNBinsX;++ix) << 276 for (size_t ix=0;ix<nBinsX;ix++)
313 (*tempMatrix)[ie*fNBinsX+ix] *= fnorm; << 277 (*tempMatrix)[ie*nBinsX+ix] *= fnorm;
314 } 278 }
315 279
316 //****************************************** 280 //*********************************************************************
317 // create and fill the tables 281 // create and fill the tables
318 //****************************************** << 282 //*********************************************************************
319 G4PhysicsTable* thePhysicsTable = new G4Phys 283 G4PhysicsTable* thePhysicsTable = new G4PhysicsTable();
320 // the table will contain 32 G4PhysicsFreeVe << 284 // the table will contain 32 G4PhysicsFreeVectors with different
321 // values of x. Each of the G4PhysicsFreeVec << 285 // values of x. Each of the G4PhysicsFreeVectors has a profile of
322 // log(XS) vs. log(E) 286 // log(XS) vs. log(E)
323 << 287
324 //reserve space of the vectors. Everything i 288 //reserve space of the vectors. Everything is log-log
325 //I add one extra "fake" point at low energy 289 //I add one extra "fake" point at low energy, since the Penelope
326 //table starts at 1 keV 290 //table starts at 1 keV
327 for (std::size_t i=0;i<fNBinsX;++i) << 291 for (size_t i=0;i<nBinsX;i++)
328 thePhysicsTable->push_back(new G4PhysicsFr << 292 thePhysicsTable->push_back(new G4PhysicsFreeVector(nBinsE+1));
329 << 293
330 for (std::size_t ix=0;ix<fNBinsX;++ix) << 294 for (size_t ix=0;ix<nBinsX;ix++)
331 { << 295 {
332 G4PhysicsFreeVector* theVec = << 296 G4PhysicsFreeVector* theVec =
333 (G4PhysicsFreeVector*) ((*thePhysicsTable)[i << 297 (G4PhysicsFreeVector*) ((*thePhysicsTable)[ix]);
334 for (std::size_t ie=0;ie<fNBinsE;++ie) << 298 for (size_t ie=0;ie<nBinsE;ie++)
335 { 299 {
336 G4double logene = G4Log(theEGrid[ie]); << 300 G4double logene = std::log(theEGrid[ie]);
337 G4double aValue = (*tempMatrix)[ie*fNBinsX << 301 G4double aValue = (*tempMatrix)[ie*nBinsX+ix];
338 if (aValue < 1e-20*millibarn) //protection 302 if (aValue < 1e-20*millibarn) //protection against log(0)
339 aValue = 1e-20*millibarn; << 303 aValue = 1e-20*millibarn;
340 theVec->PutValues(ie+1,logene,G4Log(aValue << 304 theVec->PutValue(ie+1,logene,std::log(aValue));
341 } 305 }
342 //Add fake point at 1 eV using an extrap << 306 //Add fake point at 1 eV using an extrapolation with the derivative
343 //at the first valid point (Penelope app 307 //at the first valid point (Penelope approach)
344 G4double derivative = ((*theVec)[2]-(*th 308 G4double derivative = ((*theVec)[2]-(*theVec)[1])/(theVec->Energy(2) - theVec->Energy(1));
345 G4double log1eV = G4Log(1*eV); << 309 G4double log1eV = std::log(1*eV);
346 G4double val1eV = (*theVec)[1]+derivativ 310 G4double val1eV = (*theVec)[1]+derivative*(log1eV-theVec->Energy(1));
347 //fake point at very low energy 311 //fake point at very low energy
348 theVec->PutValues(0,log1eV,val1eV); << 312 theVec->PutValue(0,log1eV,val1eV);
349 } 313 }
350 std::pair<const G4Material*,G4double> theKey 314 std::pair<const G4Material*,G4double> theKey = std::make_pair(material,cut);
351 fReducedXSTable->insert(std::make_pair(theKe << 315 theReducedXSTable->insert(std::make_pair(theKey,thePhysicsTable));
352 316
353 delete StechiometricFactors; 317 delete StechiometricFactors;
354 delete tempData; 318 delete tempData;
355 delete tempMatrix; 319 delete tempMatrix;
356 320
357 //Do here also the initialization of the ene <<
358 if (!(fSamplingTable->count(theKey))) <<
359 InitializeEnergySampling(material,cut); <<
360 <<
361 return; 321 return;
362 } 322 }
363 323
364 //....oooOO0OOooo........oooOO0OOooo........oo 324 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
365 325
366 void G4PenelopeBremsstrahlungFS::ReadDataFile( 326 void G4PenelopeBremsstrahlungFS::ReadDataFile(G4int Z)
367 { 327 {
368 const char* path = G4FindDataDir("G4LEDATA") << 328
>> 329 char* path = getenv("G4LEDATA");
369 if (!path) 330 if (!path)
370 { 331 {
371 G4String excep = "G4PenelopeBremsstrahlu 332 G4String excep = "G4PenelopeBremsstrahlungFS - G4LEDATA environment variable not set!";
372 G4Exception("G4PenelopeBremsstrahlungFS: 333 G4Exception("G4PenelopeBremsstrahlungFS::ReadDataFile()",
373 "em0006",FatalException,excep); 334 "em0006",FatalException,excep);
374 return; 335 return;
375 } 336 }
376 /* 337 /*
377 Read the cross section file 338 Read the cross section file
378 */ 339 */
379 std::ostringstream ost; 340 std::ostringstream ost;
380 if (Z>9) 341 if (Z>9)
381 ost << path << "/penelope/bremsstrahlung/p 342 ost << path << "/penelope/bremsstrahlung/pdebr" << Z << ".p08";
382 else 343 else
383 ost << path << "/penelope/bremsstrahlung/p 344 ost << path << "/penelope/bremsstrahlung/pdebr0" << Z << ".p08";
384 std::ifstream file(ost.str().c_str()); 345 std::ifstream file(ost.str().c_str());
385 if (!file.is_open()) 346 if (!file.is_open())
386 { 347 {
387 G4String excep = "G4PenelopeBremsstrahlu << 348 G4String excep = "G4PenelopeBremsstrahlungFS - data file " +
388 G4String(ost.str()) + " not found!"; 349 G4String(ost.str()) + " not found!";
389 G4Exception("G4PenelopeBremsstrahlungFS: 350 G4Exception("G4PenelopeBremsstrahlungFS::ReadDataFile()",
390 "em0003",FatalException,excep); 351 "em0003",FatalException,excep);
391 return; 352 return;
392 } 353 }
393 354
394 G4int readZ =0; 355 G4int readZ =0;
395 file >> readZ; 356 file >> readZ;
396 357
397 //check the right file is opened. 358 //check the right file is opened.
398 if (readZ != Z) 359 if (readZ != Z)
399 { 360 {
400 G4ExceptionDescription ed; 361 G4ExceptionDescription ed;
401 ed << "Corrupted data file for Z=" << Z 362 ed << "Corrupted data file for Z=" << Z << G4endl;
402 G4Exception("G4PenelopeBremsstrahlungFS: 363 G4Exception("G4PenelopeBremsstrahlungFS::ReadDataFile()",
403 "em0005",FatalException,ed); 364 "em0005",FatalException,ed);
404 return; 365 return;
405 } 366 }
406 367
407 G4DataVector* theMatrix = new G4DataVector(f << 368 G4DataVector* theMatrix = new G4DataVector(nBinsE*(nBinsX+1),0.); //initialized with zeros
408 369
409 for (std::size_t ie=0;ie<fNBinsE;++ie) << 370 for (size_t ie=0;ie<nBinsE;ie++)
410 { 371 {
411 G4double myDouble = 0; 372 G4double myDouble = 0;
412 file >> myDouble; //energy (eV) 373 file >> myDouble; //energy (eV)
413 if (!theEGrid[ie]) //fill only the first 374 if (!theEGrid[ie]) //fill only the first time
414 theEGrid[ie] = myDouble*eV; 375 theEGrid[ie] = myDouble*eV;
415 // 376 //
416 for (std::size_t ix=0;ix<fNBinsX;++ix) << 377 for (size_t ix=0;ix<nBinsX;ix++)
417 { 378 {
418 file >> myDouble; 379 file >> myDouble;
419 (*theMatrix)[ie*(fNBinsX+1)+ix] = myDouble << 380 (*theMatrix)[ie*(nBinsX+1)+ix] = myDouble*millibarn;
420 } 381 }
421 file >> myDouble; //total cross section 382 file >> myDouble; //total cross section
422 (*theMatrix)[ie*(fNBinsX+1)+fNBinsX] = m << 383 (*theMatrix)[ie*(nBinsX+1)+nBinsX] = myDouble*millibarn;
423 } 384 }
424 385
425 if (fElementData) << 386 if (theElementData)
426 fElementData->insert(std::make_pair(Z,theM << 387 theElementData->insert(std::make_pair(Z,theMatrix));
427 else 388 else
428 delete theMatrix; 389 delete theMatrix;
429 file.close(); 390 file.close();
430 return; 391 return;
431 } 392 }
432 <<
433 //....oooOO0OOooo........oooOO0OOooo........oo 393 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
434 394
435 G4double G4PenelopeBremsstrahlungFS::GetMoment 395 G4double G4PenelopeBremsstrahlungFS::GetMomentumIntegral(G4double* y,
436 G4double xup,G4int momOrder) << 396 G4double xup,G4int momOrder)
437 //x is always the gridX 397 //x is always the gridX
438 { 398 {
439 //Corresponds to the function RLMOM of Penel 399 //Corresponds to the function RLMOM of Penelope
440 //This method performs the calculation of th 400 //This method performs the calculation of the integral of (x^momOrder)*y over the interval
441 //from x[0] to xup, obtained by linear inter << 401 //from x[0] to xup, obtained by linear interpolation on a table of y.
442 //The independent variable is assumed to tak 402 //The independent variable is assumed to take positive values only.
443 // 403 //
444 std::size_t size = fNBinsX; << 404 size_t size = nBinsX;
445 const G4double eps = 1e-35; 405 const G4double eps = 1e-35;
446 406
447 //Check that the call is valid 407 //Check that the call is valid
448 if (momOrder<-1 || size<2 || theXGrid[0]<0) 408 if (momOrder<-1 || size<2 || theXGrid[0]<0)
449 { 409 {
450 G4Exception("G4PenelopeBremsstrahlungFS: 410 G4Exception("G4PenelopeBremsstrahlungFS::GetMomentumIntegral()",
451 "em2011",FatalException,"Invalid call"); 411 "em2011",FatalException,"Invalid call");
452 } 412 }
453 413
454 for (std::size_t i=1;i<size;++i) << 414 for (size_t i=1;i<size;i++)
455 { 415 {
456 if (theXGrid[i]<0 || theXGrid[i]<theXGri 416 if (theXGrid[i]<0 || theXGrid[i]<theXGrid[i-1])
457 { 417 {
458 G4ExceptionDescription ed; 418 G4ExceptionDescription ed;
459 ed << "Invalid call for bin " << i << G4en 419 ed << "Invalid call for bin " << i << G4endl;
460 G4Exception("G4PenelopeBremsstrahlungFS::G 420 G4Exception("G4PenelopeBremsstrahlungFS::GetMomentumIntegral()",
461 "em2012",FatalException,ed); 421 "em2012",FatalException,ed);
462 } 422 }
463 } 423 }
464 424
465 //Compute the integral 425 //Compute the integral
466 G4double result = 0; 426 G4double result = 0;
467 if (xup < theXGrid[0]) 427 if (xup < theXGrid[0])
468 return result; 428 return result;
469 G4bool loopAgain = true; << 429 bool loopAgain = true;
470 G4double xt = std::min(xup,theXGrid[size-1]) 430 G4double xt = std::min(xup,theXGrid[size-1]);
471 G4double xtc = 0; 431 G4double xtc = 0;
472 for (std::size_t i=0;i<size-1;++i) << 432 for (size_t i=0;i<size-1;i++)
473 { 433 {
474 G4double x1 = std::max(theXGrid[i],eps); 434 G4double x1 = std::max(theXGrid[i],eps);
475 G4double y1 = y[i]; 435 G4double y1 = y[i];
476 G4double x2 = std::max(theXGrid[i+1],eps 436 G4double x2 = std::max(theXGrid[i+1],eps);
477 G4double y2 = y[i+1]; 437 G4double y2 = y[i+1];
478 if (xt < x2) 438 if (xt < x2)
479 { 439 {
480 xtc = xt; 440 xtc = xt;
481 loopAgain = false; 441 loopAgain = false;
482 } 442 }
483 else 443 else
484 xtc = x2; 444 xtc = x2;
485 G4double dx = x2-x1; 445 G4double dx = x2-x1;
486 G4double dy = y2-y1; 446 G4double dy = y2-y1;
487 G4double ds = 0; 447 G4double ds = 0;
488 if (std::fabs(dx)>1e-14*std::fabs(dy)) 448 if (std::fabs(dx)>1e-14*std::fabs(dy))
489 { 449 {
490 G4double b=dy/dx; 450 G4double b=dy/dx;
491 G4double a=y1-b*x1; << 451 G4double a=y1-b*x1;
492 if (momOrder == -1) << 452 if (momOrder == -1)
493 ds = a*G4Log(xtc/x1)+b*(xtc-x1); << 453 ds = a*std::log(xtc/x1)+b*(xtc-x1);
494 else if (momOrder == 0) //speed it up, not 454 else if (momOrder == 0) //speed it up, not using pow()
495 ds = a*(xtc-x1) + 0.5*b*(xtc*xtc-x1*x1); 455 ds = a*(xtc-x1) + 0.5*b*(xtc*xtc-x1*x1);
496 else 456 else
497 ds = a*(std::pow(xtc,momOrder+1)-std::po 457 ds = a*(std::pow(xtc,momOrder+1)-std::pow(x1,momOrder+1))/((G4double) (momOrder + 1))
498 + b*(std::pow(xtc,momOrder+2)-std::pow << 458 + b*(std::pow(xtc,momOrder+2)-std::pow(x1,momOrder+2))/((G4double) (momOrder + 2));
499 } 459 }
500 else 460 else
501 ds = 0.5*(y1+y2)*(xtc-x1)*std::pow(xtc,momOr 461 ds = 0.5*(y1+y2)*(xtc-x1)*std::pow(xtc,momOrder);
502 result += ds; 462 result += ds;
503 if (!loopAgain) << 463 if (!loopAgain)
504 return result; 464 return result;
505 } 465 }
506 return result; 466 return result;
507 } 467 }
508 468
509 //....oooOO0OOooo........oooOO0OOooo........oo 469 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
510 470
511 const G4PhysicsTable* G4PenelopeBremsstrahlung << 471 G4PhysicsTable* G4PenelopeBremsstrahlungFS::GetScaledXSTable(const G4Material* mat,
512 const G4double cut) const << 472 G4double cut)
513 { 473 {
>> 474 //check if the container exists (if not, create it)
>> 475 if (!theReducedXSTable)
>> 476 theReducedXSTable = new std::map< std::pair<const G4Material*,G4double> ,
>> 477 G4PhysicsTable*>;
>> 478 if (!theEffectiveZSq)
>> 479 theEffectiveZSq = new std::map<const G4Material*,G4double>;
>> 480
514 //check if it already contains the entry 481 //check if it already contains the entry
515 std::pair<const G4Material*,G4double> theKey 482 std::pair<const G4Material*,G4double> theKey = std::make_pair(mat,cut);
516 << 483 if (!(theReducedXSTable->count(theKey))) //not found
517 if (!(fReducedXSTable->count(theKey))) << 484 BuildScaledXSTable(mat,cut);
>> 485
>> 486 if (!(theReducedXSTable->count(theKey)))
518 { 487 {
519 G4Exception("G4PenelopeBremsstrahlungFS: 488 G4Exception("G4PenelopeBremsstrahlungFS::GetScaledXSTable()",
520 "em2013",FatalException,"Unable to retri 489 "em2013",FatalException,"Unable to retrieve the cross section table");
521 } 490 }
522 491
523 return fReducedXSTable->find(theKey)->second << 492 return theReducedXSTable->find(theKey)->second;
524 } 493 }
525 494
526 //....oooOO0OOooo........oooOO0OOooo........oo 495 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
527 496
528 void G4PenelopeBremsstrahlungFS::InitializeEne 497 void G4PenelopeBremsstrahlungFS::InitializeEnergySampling(const G4Material* material,
529 G4double cut) 498 G4double cut)
530 { << 499 {
531 if (fVerbosity > 2) <<
532 G4cout << "Entering in G4PenelopeBremsstra <<
533 material->GetName() << G4endl; <<
534 <<
535 //This method should be accessed by the mast <<
536 std::pair<const G4Material*,G4double> theKey 500 std::pair<const G4Material*,G4double> theKey = std::make_pair(material,cut);
537 << 501
538 G4PhysicsTable* thePhysicsTable = new G4Phys 502 G4PhysicsTable* thePhysicsTable = new G4PhysicsTable();
539 // the table will contain 57 G4PhysicsFreeVe << 503 // the table will contain 57 G4PhysicsFreeVectors with different
540 // values of E. 504 // values of E.
541 G4PhysicsFreeVector* thePBvec = new G4Physic << 505 G4PhysicsFreeVector* thePBvec = new G4PhysicsFreeVector(nBinsE);
542 506
543 //I reserve space of the vectors. << 507 //I reserve space of the vectors.
544 for (std::size_t i=0;i<fNBinsE;++i) << 508 for (size_t i=0;i<nBinsE;i++)
545 thePhysicsTable->push_back(new G4PhysicsFr << 509 thePhysicsTable->push_back(new G4PhysicsFreeVector(nBinsX));
546 <<
547 //Retrieve the table. Must already exist at <<
548 //method is invoked by GetScaledXSTable() <<
549 if (!(fReducedXSTable->count(theKey))) <<
550 G4Exception("G4PenelopeBremsstrahlungFS::I <<
551 "em2013",FatalException,"Unable to retriev <<
552 G4PhysicsTable* theTableReduced = fReducedXS <<
553 510
554 for (std::size_t ie=0;ie<fNBinsE;++ie) << 511 //Retrieve existing table using the method GetScaledXSTable()
>> 512 //This will create the table ex-novo, if it does not exist for
>> 513 //some reason
>> 514 G4PhysicsTable* theTableReduced = GetScaledXSTable(material,cut);
>> 515
>> 516 for (size_t ie=0;ie<nBinsE;ie++)
555 { 517 {
556 G4PhysicsFreeVector* theVec = << 518 G4PhysicsFreeVector* theVec =
557 (G4PhysicsFreeVector*) ((*thePhysicsTable)[i << 519 (G4PhysicsFreeVector*) ((*thePhysicsTable)[ie]);
558 //Fill the table 520 //Fill the table
559 G4double value = 0; //first value 521 G4double value = 0; //first value
560 theVec->PutValues(0,theXGrid[0],value); << 522 theVec->PutValue(0,theXGrid[0],value);
561 for (std::size_t ix=1;ix<fNBinsX;++ix) << 523 for (size_t ix=1;ix<nBinsX;ix++)
562 { 524 {
563 //Here calculate the cumulative distributi 525 //Here calculate the cumulative distribution
564 // int_{0}^{x} dSigma(x',E)/dx' (1/x') dx' << 526 // int_{0}^{x} dSigma(x',E)/dx' (1/x') dx'
565 G4PhysicsFreeVector* v1 = (G4PhysicsFreeVe 527 G4PhysicsFreeVector* v1 = (G4PhysicsFreeVector*) (*theTableReduced)[ix-1];
566 G4PhysicsFreeVector* v2 = (G4PhysicsFreeVe 528 G4PhysicsFreeVector* v2 = (G4PhysicsFreeVector*) (*theTableReduced)[ix];
567 529
568 G4double x1=std::max(theXGrid[ix-1],1.0e-3 << 530 G4double x1=std::max(theXGrid[ix-1],1.0e-35);
569 //Remember: the table fReducedXSTable has << 531 //Remember: the table theReducedXSTable has a fake first point in energy
570 //so, it contains one more bin than fNBins << 532 //so, it contains one more bin than nBinsE.
571 G4double y1=G4Exp((*v1)[ie+1]); << 533 G4double y1=std::exp((*v1)[ie+1]);
572 G4double x2=std::max(theXGrid[ix],1.0e-35) 534 G4double x2=std::max(theXGrid[ix],1.0e-35);
573 G4double y2=G4Exp((*v2)[ie+1]); << 535 G4double y2=std::exp((*v2)[ie+1]);
574 G4double B = (y2-y1)/(x2-x1); 536 G4double B = (y2-y1)/(x2-x1);
575 G4double A = y1-B*x1; 537 G4double A = y1-B*x1;
576 G4double dS = A*G4Log(x2/x1)+B*(x2-x1); << 538 G4double dS = A*std::log(x2/x1)+B*(x2-x1);
577 value += dS; 539 value += dS;
578 theVec->PutValues(ix,theXGrid[ix],value); << 540 theVec->PutValue(ix,theXGrid[ix],value);
579 } 541 }
>> 542
580 //fill the PB vector 543 //fill the PB vector
581 G4double xc = cut/theEGrid[ie]; 544 G4double xc = cut/theEGrid[ie];
582 //Fill a temp data vector 545 //Fill a temp data vector
583 G4double* tempData = new G4double[fNBins << 546 G4double* tempData = new G4double[nBinsX];
584 for (std::size_t ix=0;ix<fNBinsX;++ix) << 547 for (size_t ix=0;ix<nBinsX;ix++)
585 { 548 {
586 G4PhysicsFreeVector* vv = (G4PhysicsFreeVe 549 G4PhysicsFreeVector* vv = (G4PhysicsFreeVector*) (*theTableReduced)[ix];
587 tempData[ix] = G4Exp((*vv)[ie+1]); << 550 tempData[ix] = std::exp((*vv)[ie+1]);
588 } 551 }
589 G4double pbval = (xc<=1) ? 552 G4double pbval = (xc<=1) ?
590 GetMomentumIntegral(tempData,xc,-1) : 553 GetMomentumIntegral(tempData,xc,-1) :
591 GetMomentumIntegral(tempData,1.0,-1); << 554 GetMomentumIntegral(tempData,1.0,-1);
592 thePBvec->PutValues(ie,theEGrid[ie],pbva << 555 thePBvec->PutValue(ie,theEGrid[ie],pbval);
593 delete[] tempData; 556 delete[] tempData;
594 } 557 }
595 558
596 fSamplingTable->insert(std::make_pair(theKey << 559 theSamplingTable->insert(std::make_pair(theKey,thePhysicsTable));
597 fPBcut->insert(std::make_pair(theKey,thePBve << 560 thePBcut->insert(std::make_pair(theKey,thePBvec));
598 return; 561 return;
599 } 562 }
600 563
601 //....oooOO0OOooo........oooOO0OOooo........oo 564 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
602 565
603 G4double G4PenelopeBremsstrahlungFS::SampleGam << 566 G4double G4PenelopeBremsstrahlungFS::SampleGammaEnergy(G4double energy,const G4Material* mat,
604 const G4double cut) const << 567 G4double cut)
605 { 568 {
>> 569 if (!theSamplingTable)
>> 570 theSamplingTable =
>> 571 new std::map< std::pair<const G4Material*,G4double> , G4PhysicsTable*>;
>> 572 if (!thePBcut)
>> 573 thePBcut =
>> 574 new std::map< std::pair<const G4Material*,G4double> , G4PhysicsFreeVector* >;
>> 575
606 std::pair<const G4Material*,G4double> theKey 576 std::pair<const G4Material*,G4double> theKey = std::make_pair(mat,cut);
607 if (!(fSamplingTable->count(theKey)) || !(fP << 577
>> 578 if (!(theSamplingTable->count(theKey)))
608 { 579 {
609 G4ExceptionDescription ed; << 580 InitializeEnergySampling(mat,cut);
610 ed << "Unable to retrieve the SamplingTa << 581 if (!(theSamplingTable->count(theKey)) || !(thePBcut->count(theKey)))
611 fSamplingTable->count(theKey) << " " << << 582 {
612 fPBcut->count(theKey) << G4endl; << 583 G4ExceptionDescription ed;
613 G4Exception("G4PenelopeBremsstrahlungFS: << 584 ed << "Unable to create the SamplingTable: " <<
614 "em2014",FatalException,ed); << 585 theSamplingTable->count(theKey) << " " <<
>> 586 thePBcut->count(theKey) << G4endl;
>> 587 G4Exception("G4PenelopeBremsstrahlungFS::SampleGammaEnergy()",
>> 588 "em2014",FatalException,ed);
>> 589 }
615 } 590 }
616 const G4PhysicsTable* theTableInte = fSampli <<
617 const G4PhysicsTable* theTableRed = fReduced <<
618 591
619 //Find the energy bin using bi-partition << 592 G4PhysicsTable* theTableInte = theSamplingTable->find(theKey)->second;
620 std::size_t eBin = 0; << 593 G4PhysicsTable* theTableRed = theReducedXSTable->find(theKey)->second;
621 G4bool firstOrLastBin = false; <<
622 594
623 if (energy < theEGrid[0]) //below first bin << 595 //Find the energy bin using bi-partition
624 { << 596 size_t eBin = 0;
625 eBin = 0; << 597 if (energy < theEGrid[0])
626 firstOrLastBin = true; << 598 eBin = 0;
627 } << 599 else if (energy > theEGrid[nBinsE-1])
628 else if (energy > theEGrid[fNBinsE-1]) //aft << 600 eBin = nBinsE-1;
629 { <<
630 eBin = fNBinsE-1; <<
631 firstOrLastBin = true; <<
632 } <<
633 else 601 else
634 { 602 {
635 std::size_t i=0; << 603 size_t i=0;
636 std::size_t j=fNBinsE-1; << 604 size_t j=nBinsE-1;
637 while ((j-i)>1) 605 while ((j-i)>1)
638 { 606 {
639 std::size_t k = (i+j)/2; << 607 size_t k = (i+j)/2;
640 if (energy > theEGrid[k]) 608 if (energy > theEGrid[k])
641 i = k; 609 i = k;
642 else 610 else
643 j = k; << 611 j = k;
644 } 612 }
645 eBin = i; 613 eBin = i;
646 } 614 }
647 615
648 //Get the appropriate physics vector 616 //Get the appropriate physics vector
649 const G4PhysicsFreeVector* theVec1 = (G4Phys << 617 G4PhysicsFreeVector* theVec = (G4PhysicsFreeVector*) (*theTableInte)[eBin];
650 <<
651 //Use a "temporary" vector which contains th <<
652 //in energy. The temporary vector is thread- <<
653 //This is achieved via G4Cache. The theTempV <<
654 //(member variable), but it is overwritten a <<
655 //(because the interpolation factors change! <<
656 G4PhysicsFreeVector* theTempVec = fCache.Get <<
657 if (!theTempVec) //First time this thread ge <<
658 { <<
659 theTempVec = new G4PhysicsFreeVector(fNB <<
660 fCache.Put(theTempVec); <<
661 // The G4AutoDelete takes care here to c <<
662 G4AutoDelete::Register(theTempVec); <<
663 if (fVerbosity > 4) <<
664 G4cout << "Creating new instance of G4Physic <<
665 } <<
666 <<
667 //theTempVect is allocated only once (member <<
668 //every call of this method (because the int <<
669 if (!firstOrLastBin) <<
670 { <<
671 const G4PhysicsFreeVector* theVec2 = (G4 <<
672 for (std::size_t iloop=0;iloop<fNBinsX;+ <<
673 { <<
674 G4double val = (*theVec1)[iloop]+(((*theVe <<
675 (energy-theEGrid[eBin])/(theEGrid[eBin+1 <<
676 theTempVec->PutValues(iloop,theXGrid[iloop <<
677 } <<
678 } <<
679 else //first or last bin, no interpolation <<
680 { <<
681 for (std::size_t iloop=0;iloop<fNBinsX;+ <<
682 theTempVec->PutValues(iloop,theXGrid[iloop], <<
683 } <<
684 618
685 //Start the game 619 //Start the game
686 G4double pbcut = (*(fPBcut->find(theKey)->se << 620 G4double pbcut = (*(thePBcut->find(theKey)->second))[eBin];
687 << 621 G4double pCumulative = (*theVec)[nBinsX-1]; //last value
688 if (!firstOrLastBin) //linear interpolation <<
689 { <<
690 pbcut = (*(fPBcut->find(theKey)->second) <<
691 ((*(fPBcut->find(theKey)->second))[eBin+1]-( <<
692 (energy-theEGrid[eBin])/(theEGrid[eBin+1]-th <<
693 } <<
694 <<
695 G4double pCumulative = (*theTempVec)[fNBinsX <<
696 622
697 G4double eGamma = 0; 623 G4double eGamma = 0;
698 G4int nIterations = 0; <<
699 do 624 do
700 { << 625 {
701 G4double pt = pbcut + G4UniformRand()*(p 626 G4double pt = pbcut + G4UniformRand()*(pCumulative - pbcut);
702 nIterations++; <<
703 627
704 //find where it is 628 //find where it is
705 std::size_t ibin = 0; << 629 size_t ibin = 0;
706 if (pt < (*theTempVec)[0]) << 630 if (pt < (*theVec)[0])
707 ibin = 0; 631 ibin = 0;
708 else if (pt > (*theTempVec)[fNBinsX-1]) << 632 else if (pt > (*theVec)[nBinsX-1])
709 { 633 {
710 //We observed problems due to numerical ro << 634 //We observed problems due to numerical rounding here (STT).
711 //delta here is a tiny positive number 635 //delta here is a tiny positive number
712 G4double delta = pt-(*theTempVec)[fNBinsX- << 636 G4double delta = pt-(*theVec)[nBinsX-1];
713 if (delta < pt*1e-10) // very small! Numer 637 if (delta < pt*1e-10) // very small! Numerical rounding only
714 { 638 {
715 ibin = fNBinsX-2; << 639 ibin = nBinsX-2;
716 G4ExceptionDescription ed; 640 G4ExceptionDescription ed;
717 ed << "Found that (pt > (*theTempVec)[ << 641 ed << "Found that (pt > (*theVec)[nBinsX-1]) with pt = " << pt <<
718 " , (*theTempVec)[fNBinsX-1] = " << (*theT << 642 " , (*theVec)[nBinsX-1] = " << (*theVec)[nBinsX-1] << " and delta = " <<
719 (pt-(*theTempVec)[fNBinsX-1]) << G4endl; << 643 (pt-(*theVec)[nBinsX-1]) << G4endl;
720 ed << "Possible symptom of problem wit 644 ed << "Possible symptom of problem with numerical precision" << G4endl;
721 G4Exception("G4PenelopeBremsstrahlungF 645 G4Exception("G4PenelopeBremsstrahlungFS::SampleGammaEnergy()",
722 "em2015",JustWarning,ed); 646 "em2015",JustWarning,ed);
723 } 647 }
724 else //real problem 648 else //real problem
725 { 649 {
726 G4ExceptionDescription ed; 650 G4ExceptionDescription ed;
727 ed << "Crash at (pt > (*theTempVec)[fN << 651 ed << "Crash at (pt > (*theVec)[nBinsX-1]) with pt = " << pt <<
728 " , (*theTempVec)[fNBinsX-1]=" << (*theTem << 652 " , (*theVec)[nBinsX-1]=" << (*theVec)[nBinsX-1] << " and nBinsX = " <<
729 fNBinsX << G4endl; << 653 nBinsX << G4endl;
730 ed << "Material: " << mat->GetName() < << 654 ed << "Material: " << mat->GetName() << ", energy = " << energy/keV << " keV" <<
731 G4endl; 655 G4endl;
732 G4Exception("G4PenelopeBremsstrahlungF 656 G4Exception("G4PenelopeBremsstrahlungFS::SampleGammaEnergy()",
733 "em2015",FatalException,ed); << 657 "em2015",FatalException,ed);
734 } 658 }
735 } 659 }
736 else 660 else
737 { 661 {
738 std::size_t i=0; << 662 size_t i=0;
739 std::size_t j=fNBinsX-1; << 663 size_t j=nBinsX-1;
740 while ((j-i)>1) 664 while ((j-i)>1)
741 { 665 {
742 std::size_t k = (i+j)/2; << 666 size_t k = (i+j)/2;
743 if (pt > (*theTempVec)[k]) << 667 if (pt > (*theVec)[k])
744 i = k; 668 i = k;
745 else 669 else
746 j = k; 670 j = k;
747 } 671 }
748 ibin = i; 672 ibin = i;
749 } 673 }
750 << 674
751 G4double w1 = theXGrid[ibin]; 675 G4double w1 = theXGrid[ibin];
752 G4double w2 = theXGrid[ibin+1]; << 676 G4double w2 = theXGrid[ibin+1];
753 677
754 const G4PhysicsFreeVector* v1 = (G4Physi << 678 G4PhysicsFreeVector* v1 = (G4PhysicsFreeVector*) (*theTableRed)[ibin];
755 const G4PhysicsFreeVector* v2 = (G4Physi << 679 G4PhysicsFreeVector* v2 = (G4PhysicsFreeVector*) (*theTableRed)[ibin+1];
756 //Remember: the table fReducedXSTable ha << 680 //Remember: the table theReducedXSTable has a fake first point in energy
757 //so, it contains one more bin than fNBi << 681 //so, it contains one more bin than nBinsE.
758 G4double pdf1 = G4Exp((*v1)[eBin+1]); << 682 G4double pdf1 = std::exp((*v1)[eBin+1]);
759 G4double pdf2 = G4Exp((*v2)[eBin+1]); << 683 G4double pdf2 = std::exp((*v2)[eBin+1]);
760 G4double deltaW = w2-w1; 684 G4double deltaW = w2-w1;
761 G4double dpdfb = pdf2-pdf1; 685 G4double dpdfb = pdf2-pdf1;
762 G4double B = dpdfb/deltaW; 686 G4double B = dpdfb/deltaW;
763 G4double A = pdf1-B*w1; 687 G4double A = pdf1-B*w1;
764 //I already made an interpolation in ene << 688 G4double wbcut = (cut < theEGrid[eBin]) ? cut/theEGrid[eBin] : 1.0;
765 //calculation of the wbcut, instead of t <<
766 G4double wbcut = (cut < energy) ? cut/e <<
767 if (firstOrLastBin) //this is an particu <<
768 wbcut = (cut < theEGrid[eBin]) ? cut/theEGr <<
769 <<
770 if (w1 < wbcut) 689 if (w1 < wbcut)
771 w1 = wbcut; 690 w1 = wbcut;
772 if (w2 < w1) 691 if (w2 < w1)
773 { 692 {
774 //This configuration can happen if initial << 693 G4cout << "Warning in G4PenelopeBremsstrahlungFS::SampleX()" << G4endl;
775 //statement, (w1 = wbcut), it becomes wbcu << 694 G4cout << "Conflicting end-point values" << G4endl;
776 //real problem. It becomes a problem if w2 <<
777 //a warning only in this specific case. <<
778 if (w2 > wbcut) <<
779 { <<
780 G4ExceptionDescription ed; <<
781 ed << "Warning in G4PenelopeBremsstrah <<
782 ed << "Conflicting end-point values: w <<
783 ed << "wbcut = " << wbcut << " energy= <<
784 ed << "cut = " << cut/keV << " keV" << <<
785 G4Exception("G4PenelopeBremsstrahlungF <<
786 JustWarning,ed); <<
787 } <<
788 return w1*energy; 695 return w1*energy;
789 } 696 }
790 << 697
791 G4double pmax = std::max(A+B*w1,A+B*w2); 698 G4double pmax = std::max(A+B*w1,A+B*w2);
792 G4bool loopAgain = false; << 699 G4bool loopAgain = false;
793 do 700 do
794 { 701 {
795 loopAgain = false; 702 loopAgain = false;
796 eGamma = w1* std::pow((w2/w1),G4UniformRan 703 eGamma = w1* std::pow((w2/w1),G4UniformRand());
797 if (G4UniformRand()*pmax > (A+B*eGamma)) 704 if (G4UniformRand()*pmax > (A+B*eGamma))
798 loopAgain = true; << 705 loopAgain = true;
799 }while(loopAgain); << 706 }while(loopAgain);
800 eGamma *= energy; 707 eGamma *= energy;
801 if (nIterations > 100) //protection agai << 708 }while(eGamma < cut); //repeat if sampled sub-cut!
802 return eGamma; <<
803 }while(eGamma < cut); //repeat if sampled <<
804 <<
805 return eGamma; 709 return eGamma;
806 } 710 }
>> 711
>> 712
>> 713
>> 714
807 715