| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // Author: Luciano Pandola
28 //
29 // History:
30 // --------
31 // 18 Mar 2010 L Pandola First implementation
32 // 09 Mar 2012 L. Pandola Add public method (and machinery) to return
33 // the absolute and the normalized shell cross
34 // sections independently.
35 //
36 #include "G4PenelopeCrossSection.hh"
37 #include "G4SystemOfUnits.hh"
38 #include "G4PhysicsTable.hh"
39 #include "G4PhysicsFreeVector.hh"
40 #include "G4DataVector.hh"
41 #include "G4Exp.hh"
42 #include "G4Log.hh"
43
44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
45 G4PenelopeCrossSection::G4PenelopeCrossSection(size_t nPointsE,size_t nShells) :
46 fSoftCrossSections(nullptr),
47 fHardCrossSections(nullptr),fShellCrossSections(nullptr),
48 fShellNormalizedCrossSections(nullptr),
49 fNumberOfEnergyPoints(nPointsE),fNumberOfShells(nShells)
50 {
51 //check the number of points is not zero
52 if (!fNumberOfEnergyPoints)
53 {
54 G4ExceptionDescription ed;
55 ed << "G4PenelopeCrossSection: invalid number of energy points " << G4endl;
56 G4Exception("G4PenelopeCrossSection::G4PenelopeCrossSection()",
57 "em2017",FatalException,ed);
58 }
59
60 fIsNormalized = false;
61
62 // 1) soft XS table
63 fSoftCrossSections = new G4PhysicsTable();
64 //the table contains 3 G4PhysicsFreeVectors,
65 //(fSoftCrossSections)[0] --> log XS0 vs. log E
66 //(fSoftCrossSections)[1] --> log XS1 vs. log E
67 //(fSoftCrossSections)[2] --> log XS2 vs. log E
68
69 //everything is log-log
70 for (size_t i=0;i<3;i++)
71 fSoftCrossSections->push_back(new G4PhysicsFreeVector(fNumberOfEnergyPoints));
72
73 //2) hard XS table
74 fHardCrossSections = new G4PhysicsTable();
75 //the table contains 3 G4PhysicsFreeVectors,
76 //(fHardCrossSections)[0] --> log XH0 vs. log E
77 //(fHardCrossSections)[1] --> log XH1 vs. log E
78 //(fHardCrossSections)[2] --> log XH2 vs. log E
79
80 //everything is log-log
81 for (size_t i=0;i<3;i++)
82 fHardCrossSections->push_back(new G4PhysicsFreeVector(fNumberOfEnergyPoints));
83
84 //3) shell XS table, if it is the case
85 if (fNumberOfShells)
86 {
87 fShellCrossSections = new G4PhysicsTable();
88 fShellNormalizedCrossSections = new G4PhysicsTable();
89 //the table has to contain numberofShells G4PhysicsFreeVectors,
90 //(theTable)[ishell] --> cross section for shell #ishell
91 for (size_t i=0;i<fNumberOfShells;i++)
92 {
93 fShellCrossSections->push_back(new G4PhysicsFreeVector(fNumberOfEnergyPoints));
94 fShellNormalizedCrossSections->push_back(new G4PhysicsFreeVector(fNumberOfEnergyPoints));
95 }
96 }
97 }
98
99 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
100 G4PenelopeCrossSection::~G4PenelopeCrossSection()
101 {
102 //clean up tables
103 if (fShellCrossSections)
104 {
105 fShellCrossSections->clearAndDestroy();
106 delete fShellCrossSections;
107 }
108 if (fShellNormalizedCrossSections)
109 {
110 fShellNormalizedCrossSections->clearAndDestroy();
111 delete fShellNormalizedCrossSections;
112 }
113 if (fSoftCrossSections)
114 {
115 fSoftCrossSections->clearAndDestroy();
116 delete fSoftCrossSections;
117 }
118 if (fHardCrossSections)
119 {
120 fHardCrossSections->clearAndDestroy();
121 delete fHardCrossSections;
122 }
123 }
124
125 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
126 void G4PenelopeCrossSection::AddCrossSectionPoint(size_t binNumber,G4double energy,
127 G4double XH0,
128 G4double XH1, G4double XH2,
129 G4double XS0, G4double XS1,
130 G4double XS2)
131 {
132 if (!fSoftCrossSections || !fHardCrossSections)
133 {
134 G4cout << "Something wrong in G4PenelopeCrossSection::AddCrossSectionPoint" <<
135 G4endl;
136 G4cout << "Trying to fill un-initialized tables" << G4endl;
137 return;
138 }
139
140 //fill vectors
141 G4PhysicsFreeVector* theVector = (G4PhysicsFreeVector*) (*fSoftCrossSections)[0];
142
143 if (binNumber >= fNumberOfEnergyPoints)
144 {
145 G4cout << "Something wrong in G4PenelopeCrossSection::AddCrossSectionPoint" <<
146 G4endl;
147 G4cout << "Trying to register more points than originally declared" << G4endl;
148 return;
149 }
150 G4double logEne = G4Log(energy);
151
152 //XS0
153 G4double val = G4Log(std::max(XS0,1e-42*cm2)); //avoid log(0)
154 theVector->PutValues(binNumber,logEne,val);
155
156 //XS1
157 theVector = (G4PhysicsFreeVector*) (*fSoftCrossSections)[1];
158 val = G4Log(std::max(XS1,1e-42*eV*cm2)); //avoid log(0)
159 theVector->PutValues(binNumber,logEne,val);
160
161 //XS2
162 theVector = (G4PhysicsFreeVector*) (*fSoftCrossSections)[2];
163 val = G4Log(std::max(XS2,1e-42*eV*eV*cm2)); //avoid log(0)
164 theVector->PutValues(binNumber,logEne,val);
165
166 //XH0
167 theVector = (G4PhysicsFreeVector*) (*fHardCrossSections)[0];
168 val = G4Log(std::max(XH0,1e-42*cm2)); //avoid log(0)
169 theVector->PutValues(binNumber,logEne,val);
170
171 //XH1
172 theVector = (G4PhysicsFreeVector*) (*fHardCrossSections)[1];
173 val = G4Log(std::max(XH1,1e-42*eV*cm2)); //avoid log(0)
174 theVector->PutValues(binNumber,logEne,val);
175
176 //XH2
177 theVector = (G4PhysicsFreeVector*) (*fHardCrossSections)[2];
178 val = G4Log(std::max(XH2,1e-42*eV*eV*cm2)); //avoid log(0)
179 theVector->PutValues(binNumber,logEne,val);
180
181 return;
182 }
183
184 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
185
186 void G4PenelopeCrossSection::AddShellCrossSectionPoint(size_t binNumber,
187 size_t shellID,
188 G4double energy,
189 G4double xs)
190 {
191 if (!fShellCrossSections)
192 {
193 G4cout << "Something wrong in G4PenelopeCrossSection::AddShellCrossSectionPoint" <<
194 G4endl;
195 G4cout << "Trying to fill un-initialized table" << G4endl;
196 return;
197 }
198
199 if (shellID >= fNumberOfShells)
200 {
201 G4cout << "Something wrong in G4PenelopeCrossSection::AddShellCrossSectionPoint" <<
202 G4endl;
203 G4cout << "Trying to fill shell #" << shellID << " while the maximum is "
204 << fNumberOfShells-1 << G4endl;
205 return;
206 }
207
208 //fill vector
209 G4PhysicsFreeVector* theVector = (G4PhysicsFreeVector*) (*fShellCrossSections)[shellID];
210
211 if (binNumber >= fNumberOfEnergyPoints)
212 {
213 G4cout << "Something wrong in G4PenelopeCrossSection::AddShellCrossSectionPoint" <<
214 G4endl;
215 G4cout << "Trying to register more points than originally declared" << G4endl;
216 return;
217 }
218 G4double logEne = G4Log(energy);
219 G4double val = G4Log(std::max(xs,1e-42*cm2)); //avoid log(0)
220 theVector->PutValues(binNumber,logEne,val);
221
222 return;
223 }
224
225 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
226
227 G4double G4PenelopeCrossSection::GetTotalCrossSection(G4double energy) const
228 {
229 G4double result = 0;
230 //take here XS0 + XH0
231 if (!fSoftCrossSections || !fHardCrossSections)
232 {
233 G4cout << "Something wrong in G4PenelopeCrossSection::GetTotalCrossSection" <<
234 G4endl;
235 G4cout << "Trying to retrieve from un-initialized tables" << G4endl;
236 return result;
237 }
238
239 // 1) soft part
240 G4PhysicsFreeVector* theVector = (G4PhysicsFreeVector*) (*fSoftCrossSections)[0];
241 if (theVector->GetVectorLength() < fNumberOfEnergyPoints)
242 {
243 G4cout << "Something wrong in G4PenelopeCrossSection::GetTotalCrossSection" <<
244 G4endl;
245 G4cout << "Soft cross section table looks not filled" << G4endl;
246 return result;
247 }
248 G4double logene = G4Log(energy);
249 G4double logXS = theVector->Value(logene);
250 G4double softXS = G4Exp(logXS);
251
252 // 2) hard part
253 theVector = (G4PhysicsFreeVector*) (*fHardCrossSections)[0];
254 if (theVector->GetVectorLength() < fNumberOfEnergyPoints)
255 {
256 G4cout << "Something wrong in G4PenelopeCrossSection::GetTotalCrossSection" <<
257 G4endl;
258 G4cout << "Hard cross section table looks not filled" << G4endl;
259 return result;
260 }
261 logXS = theVector->Value(logene);
262 G4double hardXS = G4Exp(logXS);
263
264 result = hardXS + softXS;
265 return result;
266 }
267
268 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
269
270 G4double G4PenelopeCrossSection::GetHardCrossSection(G4double energy) const
271 {
272 G4double result = 0;
273 //take here XH0
274 if (!fHardCrossSections)
275 {
276 G4cout << "Something wrong in G4PenelopeCrossSection::GetHardCrossSection" <<
277 G4endl;
278 G4cout << "Trying to retrieve from un-initialized tables" << G4endl;
279 return result;
280 }
281
282 G4PhysicsFreeVector* theVector = (G4PhysicsFreeVector*) (*fHardCrossSections)[0];
283 if (theVector->GetVectorLength() < fNumberOfEnergyPoints)
284 {
285 G4cout << "Something wrong in G4PenelopeCrossSection::GetHardCrossSection" <<
286 G4endl;
287 G4cout << "Hard cross section table looks not filled" << G4endl;
288 return result;
289 }
290 G4double logene = G4Log(energy);
291 G4double logXS = theVector->Value(logene);
292 result = G4Exp(logXS);
293
294 return result;
295 }
296
297 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...
298
299 G4double G4PenelopeCrossSection::GetSoftStoppingPower(G4double energy) const
300 {
301 G4double result = 0;
302 //take here XH0
303 if (!fSoftCrossSections)
304 {
305 G4cout << "Something wrong in G4PenelopeCrossSection::GetSoftStoppingPower" <<
306 G4endl;
307 G4cout << "Trying to retrieve from un-initialized tables" << G4endl;
308 return result;
309 }
310
311 G4PhysicsFreeVector* theVector = (G4PhysicsFreeVector*) (*fSoftCrossSections)[1];
312 if (theVector->GetVectorLength() < fNumberOfEnergyPoints)
313 {
314 G4cout << "Something wrong in G4PenelopeCrossSection::GetSoftStoppingPower" <<
315 G4endl;
316 G4cout << "Soft cross section table looks not filled" << G4endl;
317 return result;
318 }
319 G4double logene = G4Log(energy);
320 G4double logXS = theVector->Value(logene);
321 result = G4Exp(logXS);
322
323 return result;
324 }
325
326 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo..
327
328 G4double G4PenelopeCrossSection::GetShellCrossSection(size_t shellID,G4double energy) const
329 {
330 G4double result = 0;
331 if (!fShellCrossSections)
332 {
333 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
334 G4endl;
335 G4cout << "Trying to retrieve from un-initialized tables" << G4endl;
336 return result;
337 }
338 if (shellID >= fNumberOfShells)
339 {
340 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
341 G4endl;
342 G4cout << "Trying to retrieve shell #" << shellID << " while the maximum is "
343 << fNumberOfShells-1 << G4endl;
344 return result;
345 }
346
347 G4PhysicsFreeVector* theVector = (G4PhysicsFreeVector*) (*fShellCrossSections)[shellID];
348
349 if (theVector->GetVectorLength() < fNumberOfEnergyPoints)
350 {
351 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
352 G4endl;
353 G4cout << "Shell cross section table looks not filled" << G4endl;
354 return result;
355 }
356 G4double logene = G4Log(energy);
357 G4double logXS = theVector->Value(logene);
358 result = G4Exp(logXS);
359
360 return result;
361 }
362 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo..
363
364 G4double G4PenelopeCrossSection::GetNormalizedShellCrossSection(size_t shellID,G4double energy) const
365 {
366 G4double result = 0;
367 if (!fShellNormalizedCrossSections)
368 {
369 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
370 G4endl;
371 G4cout << "Trying to retrieve from un-initialized tables" << G4endl;
372 return result;
373 }
374
375 if (!fIsNormalized)
376 {
377 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" << G4endl;
378 G4cout << "The table of normalized cross section is not initialized" << G4endl;
379 }
380
381 if (shellID >= fNumberOfShells)
382 {
383 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
384 G4endl;
385 G4cout << "Trying to retrieve shell #" << shellID << " while the maximum is "
386 << fNumberOfShells-1 << G4endl;
387 return result;
388 }
389
390 const G4PhysicsFreeVector* theVector =
391 (G4PhysicsFreeVector*) (*fShellNormalizedCrossSections)[shellID];
392
393 if (theVector->GetVectorLength() < fNumberOfEnergyPoints)
394 {
395 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
396 G4endl;
397 G4cout << "Shell cross section table looks not filled" << G4endl;
398 return result;
399 }
400 G4double logene = G4Log(energy);
401 G4double logXS = theVector->Value(logene);
402 result = G4Exp(logXS);
403
404 return result;
405 }
406
407 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo..
408
409 void G4PenelopeCrossSection::NormalizeShellCrossSections()
410 {
411 if (fIsNormalized) //already done!
412 {
413 G4cout << "G4PenelopeCrossSection::NormalizeShellCrossSections()" << G4endl;
414 G4cout << "already invoked. Ignore it" << G4endl;
415 return;
416 }
417
418 if (!fShellNormalizedCrossSections)
419 {
420 G4cout << "Something wrong in G4PenelopeCrossSection::GetShellCrossSection" <<
421 G4endl;
422 G4cout << "Trying to retrieve from un-initialized tables" << G4endl;
423 return;
424 }
425
426 for (size_t i=0;i<fNumberOfEnergyPoints;i++) //loop on energy
427 {
428 //energy grid is the same for all shells
429
430 //Recalculate manually the XS factor, to avoid problems with
431 //underflows
432 G4double normFactor = 0.;
433 for (size_t shellID=0;shellID<fNumberOfShells;shellID++)
434 {
435 G4PhysicsFreeVector* theVec =
436 (G4PhysicsFreeVector*) (*fShellCrossSections)[shellID];
437
438 normFactor += G4Exp((*theVec)[i]);
439 }
440 G4double logNormFactor = G4Log(normFactor);
441 //Normalize
442 for (size_t shellID=0;shellID<fNumberOfShells;shellID++)
443 {
444 G4PhysicsFreeVector* theVec =
445 (G4PhysicsFreeVector*) (*fShellNormalizedCrossSections)[shellID];
446 G4PhysicsFreeVector* theFullVec =
447 (G4PhysicsFreeVector*) (*fShellCrossSections)[shellID];
448 G4double previousValue = (*theFullVec)[i]; //log(XS)
449 G4double logEnergy = theFullVec->GetLowEdgeEnergy(i);
450 //log(XS/normFactor) = log(XS) - log(normFactor)
451 theVec->PutValues(i,logEnergy,previousValue-logNormFactor);
452 }
453 }
454 fIsNormalized = true;
455
456 return;
457 }
458