| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
>> 25 //
>> 26 //
>> 27 // $Id: G4IonisParamMat.cc,v 1.40 2010-11-01 18:18:57 vnivanch Exp $
>> 28 // GEANT4 tag $Name: geant4-09-04-patch-02 $
>> 29 //
>> 30 //
>> 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
25 32
26 // 09-07-98, data moved from G4Material, M.Mai 33 // 09-07-98, data moved from G4Material, M.Maire
27 // 18-07-98, bug corrected in ComputeDensityEf 34 // 18-07-98, bug corrected in ComputeDensityEffect() for gas
28 // 16-01-01, bug corrected in ComputeDensityEf 35 // 16-01-01, bug corrected in ComputeDensityEffect() E100eV (L.Urban)
29 // 08-02-01, fShellCorrectionVector correctly 36 // 08-02-01, fShellCorrectionVector correctly handled (mma)
30 // 28-10-02, add setMeanExcitationEnergy (V.Iv 37 // 28-10-02, add setMeanExcitationEnergy (V.Ivanchenko)
31 // 06-09-04, factor 2 to shell correction term << 38 // 06-09-04, factor 2 to shell correction term (V.Ivanchenko)
32 // 10-05-05, add a missing coma in FindMeanExc 39 // 10-05-05, add a missing coma in FindMeanExcitationEnergy() - Bug#746 (mma)
33 // 27-09-07, add computation of parameters for 40 // 27-09-07, add computation of parameters for ions (V.Ivanchenko)
34 // 04-03-08, remove reference to G4NistManager 41 // 04-03-08, remove reference to G4NistManager. Add fBirks constant (mma)
35 // 30-10-09, add G4DensityEffectData class and 42 // 30-10-09, add G4DensityEffectData class and density effect computation (VI)
36 43
37 #include "G4IonisParamMat.hh" << 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
38 45
39 #include "G4AtomicShells.hh" << 46 #include "G4IonisParamMat.hh"
40 #include "G4AutoLock.hh" <<
41 #include "G4DensityEffectData.hh" <<
42 #include "G4Exp.hh" <<
43 #include "G4Log.hh" <<
44 #include "G4Material.hh" 47 #include "G4Material.hh"
45 #include "G4NistManager.hh" << 48 #include "G4DensityEffectData.hh"
46 #include "G4PhysicalConstants.hh" <<
47 #include "G4Pow.hh" <<
48 #include "G4SystemOfUnits.hh" <<
49 <<
50 G4DensityEffectData* G4IonisParamMat::fDensity <<
51 49
52 namespace << 50 G4DensityEffectData* G4IonisParamMat::fDensityData = 0;
53 { <<
54 G4Mutex ionisMutex = G4MUTEX_INITIALIZER; <<
55 } <<
56 51
57 //....oooOO0OOooo........oooOO0OOooo........oo 52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
58 53
59 G4IonisParamMat::G4IonisParamMat(const G4Mater << 54 G4IonisParamMat::G4IonisParamMat(G4Material* material)
>> 55 : fMaterial(material)
60 { 56 {
61 fBirks = 0.; 57 fBirks = 0.;
62 fMeanEnergyPerIon = 0.0; 58 fMeanEnergyPerIon = 0.0;
63 twoln10 = 2. * G4Pow::GetInstance()->logZ(10 <<
64 59
65 // minimal set of default parameters for den 60 // minimal set of default parameters for density effect
66 fCdensity = 0.0; 61 fCdensity = 0.0;
67 fD0density = 0.0; 62 fD0density = 0.0;
68 fAdjustmentFactor = 1.0; 63 fAdjustmentFactor = 1.0;
69 if (fDensityData == nullptr) { << 64 if(!fDensityData) { fDensityData = new G4DensityEffectData(); }
70 fDensityData = new G4DensityEffectData(); <<
71 } <<
72 fDensityEffectCalc = nullptr; <<
73 65
74 // compute parameters 66 // compute parameters
75 ComputeMeanParameters(); 67 ComputeMeanParameters();
76 ComputeDensityEffectParameters(); << 68 ComputeDensityEffect();
77 ComputeFluctModel(); 69 ComputeFluctModel();
78 ComputeIonParameters(); 70 ComputeIonParameters();
79 } 71 }
80 72
81 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
82 74
83 G4IonisParamMat::~G4IonisParamMat() << 75 // Fake default constructor - sets only member data and allocates memory
84 { << 76 // for usage restricted to object persistency
85 delete fDensityEffectCalc; <<
86 delete[] fShellCorrectionVector; <<
87 delete fDensityData; <<
88 fDensityData = nullptr; <<
89 fShellCorrectionVector = nullptr; <<
90 fDensityEffectCalc = nullptr; <<
91 } <<
92 <<
93 //....oooOO0OOooo........oooOO0OOooo........oo <<
94 77
95 G4double G4IonisParamMat::GetDensityCorrection << 78 G4IonisParamMat::G4IonisParamMat(__void__&)
>> 79 : fMaterial(0), fShellCorrectionVector(0)
96 { 80 {
97 // x = log10(beta*gamma) << 81 fMeanExcitationEnergy = 0.0;
98 G4double y = 0.0; << 82 fLogMeanExcEnergy = 0.0;
99 if (x < fX0density) { << 83 fTaul = 0.0;
100 if (fD0density > 0.0) { << 84 fCdensity = 0.0;
101 y = fD0density * G4Exp(twoln10 * (x - fX << 85 fMdensity = 0.0;
102 } << 86 fAdensity = 0.0;
103 } << 87 fX0density = 0.0;
104 else if (x >= fX1density) { << 88 fX1density = 0.0;
105 y = twoln10 * x - fCdensity; << 89 fD0density = 0.0;
106 } << 90 fPlasmaEnergy = 0.0;
107 else { << 91 fAdjustmentFactor = 0.0;
108 y = twoln10 * x - fCdensity + fAdensity * << 92 fF1fluct = 0.0;
109 } << 93 fF2fluct = 0.0;
110 return y; << 94 fEnergy1fluct = 0.0;
>> 95 fLogEnergy1fluct = 0.0;
>> 96 fEnergy2fluct = 0.0;
>> 97 fLogEnergy2fluct = 0.0;
>> 98 fEnergy0fluct = 0.0;
>> 99 fRateionexcfluct = 0.0;
>> 100 fZeff = 0.0;
>> 101 fFermiEnergy = 0.0;
>> 102 fLfactor = 0.0;
>> 103 fInvA23 = 0.0;
>> 104 fBirks = 0.0;
>> 105 fMeanEnergyPerIon = 0.0;
111 } 106 }
112 107
113 //....oooOO0OOooo........oooOO0OOooo........oo 108 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
114 109
115 void G4IonisParamMat::ComputeMeanParameters() 110 void G4IonisParamMat::ComputeMeanParameters()
116 { 111 {
117 // compute mean excitation energy and shell 112 // compute mean excitation energy and shell correction vector
>> 113
118 fTaul = (*(fMaterial->GetElementVector()))[0 114 fTaul = (*(fMaterial->GetElementVector()))[0]->GetIonisation()->GetTaul();
119 115
120 std::size_t nElements = fMaterial->GetNumber << 116 fMeanExcitationEnergy = 0.;
>> 117 fLogMeanExcEnergy = 0.;
>> 118
>> 119 size_t nElements = fMaterial->GetNumberOfElements();
121 const G4ElementVector* elmVector = fMaterial 120 const G4ElementVector* elmVector = fMaterial->GetElementVector();
122 const G4double* nAtomsPerVolume = fMaterial- 121 const G4double* nAtomsPerVolume = fMaterial->GetVecNbOfAtomsPerVolume();
123 122
124 fMeanExcitationEnergy = FindMeanExcitationEn << 123 const G4String ch = fMaterial->GetChemicalFormula();
125 fLogMeanExcEnergy = 0.; << 124
>> 125 if(ch != "") { fMeanExcitationEnergy = FindMeanExcitationEnergy(ch); }
126 126
127 // Chemical formula defines mean excitation 127 // Chemical formula defines mean excitation energy
128 if (fMeanExcitationEnergy > 0.0) { << 128 if(fMeanExcitationEnergy > 0.0) {
129 fLogMeanExcEnergy = G4Log(fMeanExcitationE << 129 fLogMeanExcEnergy = std::log(fMeanExcitationEnergy);
130 130
131 // Compute average << 131 // Compute average
132 } << 132 } else {
133 else { << 133 for (size_t i=0; i < nElements; i++) {
134 for (std::size_t i = 0; i < nElements; ++i <<
135 const G4Element* elm = (*elmVector)[i]; 134 const G4Element* elm = (*elmVector)[i];
136 fLogMeanExcEnergy += << 135 fLogMeanExcEnergy += nAtomsPerVolume[i]*elm->GetZ()
137 nAtomsPerVolume[i] * elm->GetZ() * G4L << 136 *std::log(elm->GetIonisation()->GetMeanExcitationEnergy());
138 } 137 }
139 fLogMeanExcEnergy /= fMaterial->GetTotNbOf 138 fLogMeanExcEnergy /= fMaterial->GetTotNbOfElectPerVolume();
140 fMeanExcitationEnergy = G4Exp(fLogMeanExcE << 139 fMeanExcitationEnergy = std::exp(fLogMeanExcEnergy);
141 } 140 }
142 141
143 fShellCorrectionVector = new G4double[3]; << 142 fShellCorrectionVector = new G4double[3];
144 143
145 for (G4int j = 0; j <= 2; ++j) { << 144 for (G4int j=0; j<=2; j++)
>> 145 {
146 fShellCorrectionVector[j] = 0.; 146 fShellCorrectionVector[j] = 0.;
147 147
148 for (std::size_t k = 0; k < nElements; ++k << 148 for (size_t k=0; k<nElements; k++) {
149 fShellCorrectionVector[j] += << 149 fShellCorrectionVector[j] += nAtomsPerVolume[k]
150 nAtomsPerVolume[k] * (((*elmVector)[k] << 150 *(((*elmVector)[k])->GetIonisation()->GetShellCorrectionVector())[j];
151 } 151 }
152 fShellCorrectionVector[j] *= 2.0 / fMateri << 152 fShellCorrectionVector[j] *= 2.0/fMaterial->GetTotNbOfElectPerVolume();
153 } << 153 }
154 } 154 }
155 155
156 //....oooOO0OOooo........oooOO0OOooo........oo 156 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
157 157
158 G4DensityEffectData* G4IonisParamMat::GetDensi << 158 G4DensityEffectData* G4IonisParamMat::GetDensityEffectData()
>> 159 {
159 return fDensityData; 160 return fDensityData;
160 } 161 }
161 162
162 //....oooOO0OOooo........oooOO0OOooo........oo 163 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
163 << 164
164 void G4IonisParamMat::ComputeDensityEffectPara << 165 void G4IonisParamMat::ComputeDensityEffect()
165 { 166 {
>> 167 static const G4double twoln10 = 2.*std::log(10.);
166 G4State State = fMaterial->GetState(); 168 G4State State = fMaterial->GetState();
167 G4double density = fMaterial->GetDensity(); <<
168 169
169 // Check if density effect data exist in the 170 // Check if density effect data exist in the table
170 // R.M. Sternheimer, Atomic Data and Nuclear 171 // R.M. Sternheimer, Atomic Data and Nuclear Data Tables, 30: 261 (1984)
171 // or is assign to one of data set in this t <<
172 G4int idx = fDensityData->GetIndex(fMaterial 172 G4int idx = fDensityData->GetIndex(fMaterial->GetName());
173 auto nelm = (G4int)fMaterial->GetNumberOfEle << 173 if(idx < 0 && fMaterial->GetNumberOfElements() == 1) {
174 G4int Z0 = ((*(fMaterial->GetElementVector() << 174 idx = fDensityData->GetElementIndex(G4int(fMaterial->GetZ()),
175 const G4Material* bmat = fMaterial->GetBaseM << 175 fMaterial->GetState());
176 G4NistManager* nist = G4NistManager::Instanc <<
177 <<
178 // arbitrary empirical limits <<
179 // parameterisation with very different dens <<
180 static const G4double corrmax = 1.; <<
181 static const G4double massfracmax = 0.9; <<
182 <<
183 // for simple non-NIST materials <<
184 G4double corr = 0.0; <<
185 <<
186 if (idx < 0 && 1 == nelm) { <<
187 G4int z = (1 == Z0 && State == kStateLiqui <<
188 idx = fDensityData->GetElementIndex(z); <<
189 <<
190 // Correction for base material or for non <<
191 // Except cases of very different density <<
192 if (idx >= 0 && 0 < z) { <<
193 G4double dens = nist->GetNominalDensity( <<
194 if (dens <= 0.0) { <<
195 idx = -1; <<
196 } <<
197 else { <<
198 corr = G4Log(dens / density); <<
199 if (std::abs(corr) > corrmax) { <<
200 idx = -1; <<
201 } <<
202 } <<
203 } <<
204 } <<
205 // for base material case <<
206 if (idx < 0 && nullptr != bmat) { <<
207 idx = fDensityData->GetIndex(bmat->GetName <<
208 if (idx >= 0) { <<
209 corr = G4Log(bmat->GetDensity() / densit <<
210 if (std::abs(corr) > corrmax) { <<
211 idx = -1; <<
212 } <<
213 } <<
214 } 176 }
215 177
216 // for compound non-NIST materials with one << 178 //G4cout<<"DensityEffect for "<<fMaterial->GetName()<<" "<< idx << G4endl;
217 if (idx < 0 && 1 < nelm) { << 179
218 const G4double tot = fMaterial->GetTotNbOf << 180 if(idx >= 0) {
219 for (G4int i = 0; i < nelm; ++i) { <<
220 const G4double frac = fMaterial->GetVecN <<
221 if (frac > massfracmax) { <<
222 Z0 = ((*(fMaterial->GetElementVector() <<
223 idx = fDensityData->GetElementIndex(Z0 <<
224 G4double dens = nist->GetNominalDensit <<
225 if (idx >= 0 && dens > 0.0) { <<
226 corr = G4Log(dens / density); <<
227 if (std::abs(corr) > corrmax) { <<
228 idx = -1; <<
229 } <<
230 else { <<
231 break; <<
232 } <<
233 } <<
234 } <<
235 } <<
236 } <<
237 181
238 if (idx >= 0) { <<
239 // Take parameters for the density effect 182 // Take parameters for the density effect correction from
240 // R.M. Sternheimer et al. Density Effect << 183 // R.M. Sternheimer et al. Density Effect For The Ionization Loss
241 // of Charged Particles in Various Substan << 184 // of Charged Particles in Various Substances.
242 // Atom. Data Nucl. Data Tabl. 30 (1984) 2 << 185 // Atom. Data Nucl. Data Tabl. 30 (1984) 261-271.
243 186
244 fCdensity = fDensityData->GetCdensity(idx) << 187 fCdensity = fDensityData->GetCdensity(idx);
245 fMdensity = fDensityData->GetMdensity(idx) 188 fMdensity = fDensityData->GetMdensity(idx);
246 fAdensity = fDensityData->GetAdensity(idx) 189 fAdensity = fDensityData->GetAdensity(idx);
247 fX0density = fDensityData->GetX0density(id 190 fX0density = fDensityData->GetX0density(idx);
248 fX1density = fDensityData->GetX1density(id 191 fX1density = fDensityData->GetX1density(idx);
249 fD0density = fDensityData->GetDelta0densit 192 fD0density = fDensityData->GetDelta0density(idx);
250 fPlasmaEnergy = fDensityData->GetPlasmaEne 193 fPlasmaEnergy = fDensityData->GetPlasmaEnergy(idx);
251 fAdjustmentFactor = fDensityData->GetAdjus 194 fAdjustmentFactor = fDensityData->GetAdjustmentFactor(idx);
252 195
253 // parameter C is computed and not taken f << 196 } else {
254 // fCdensity = 1. + 2*G4Log(fMeanExcitatio << 197
255 // G4cout << "IonisParamMat: " << fMateria << 198 const G4double Cd2 = 4*pi*hbarc_squared*classic_electr_radius;
256 // << " Cst= " << Cdensity << " C= " << 199 fPlasmaEnergy = std::sqrt(Cd2*fMaterial->GetTotNbOfElectPerVolume());
257 <<
258 // correction on nominal density <<
259 fCdensity += corr; <<
260 fX0density += corr / twoln10; <<
261 fX1density += corr / twoln10; <<
262 } <<
263 else { <<
264 static const G4double Cd2 = 4 * CLHEP::pi <<
265 fPlasmaEnergy = std::sqrt(Cd2 * fMaterial- <<
266 200
267 // Compute parameters for the density effe 201 // Compute parameters for the density effect correction in DE/Dx formula.
268 // The parametrization is from R.M. Sternh 202 // The parametrization is from R.M. Sternheimer, Phys. Rev.B,3:3681 (1971)
269 G4int icase; 203 G4int icase;
>> 204
>> 205 fCdensity = 1. + 2*std::log(fMeanExcitationEnergy/fPlasmaEnergy);
>> 206
>> 207 //fCdensity = 1. + std::log(fMeanExcitationEnergy*fMeanExcitationEnergy
>> 208 // /(Cd2*fMaterial->GetTotNbOfElectPerVolume()));
270 209
271 fCdensity = 1. + 2 * G4Log(fMeanExcitation <<
272 // 210 //
273 // condensed materials 211 // condensed materials
274 // 212 //
275 if ((State == kStateSolid) || (State == kS << 213
276 static const G4double E100eV = 100. * CL << 214 if ((State == kStateSolid)||(State == kStateLiquid)) {
277 static const G4double ClimiS[] = {3.681, <<
278 static const G4double X0valS[] = {1.0, 1 <<
279 static const G4double X1valS[] = {2.0, 3 <<
280 215
281 if (fMeanExcitationEnergy < E100eV) { << 216 const G4double E100eV = 100.*eV;
282 icase = 0; << 217 const G4double ClimiS[] = {3.681 , 5.215 };
283 } << 218 const G4double X0valS[] = {1.0 , 1.5 };
284 else { << 219 const G4double X1valS[] = {2.0 , 3.0 };
285 icase = 1; << 220
286 } << 221 if(fMeanExcitationEnergy < E100eV) icase = 0;
287 << 222 else icase = 1;
288 if (fCdensity < ClimiS[icase]) { << 223
289 fX0density = 0.2; << 224 if(fCdensity < ClimiS[icase]) fX0density = 0.2;
290 } << 225 else fX0density = 0.326*fCdensity-X0valS[icase];
291 else { << 226
292 fX0density = 0.326 * fCdensity - X0val << 227 fX1density = X1valS[icase] ; fMdensity = 3.0;
293 } << 228
294 << 229 //special: Hydrogen
295 fX1density = X1valS[icase]; << 230 if ((fMaterial->GetNumberOfElements()==1)&&(fMaterial->GetZ()==1.)) {
296 fMdensity = 3.0; << 231 fX0density = 0.425; fX1density = 2.0; fMdensity = 5.949;
297 <<
298 // special: Hydrogen <<
299 if (1 == nelm && 1 == Z0) { <<
300 fX0density = 0.425; <<
301 fX1density = 2.0; <<
302 fMdensity = 5.949; <<
303 } 232 }
304 } 233 }
305 else { <<
306 // <<
307 // gases <<
308 // <<
309 fMdensity = 3.; <<
310 fX1density = 4.0; <<
311 <<
312 if (fCdensity <= 10.) { <<
313 fX0density = 1.6; <<
314 } <<
315 else if (fCdensity <= 10.5) { <<
316 fX0density = 1.7; <<
317 } <<
318 else if (fCdensity <= 11.0) { <<
319 fX0density = 1.8; <<
320 } <<
321 else if (fCdensity <= 11.5) { <<
322 fX0density = 1.9; <<
323 } <<
324 else if (fCdensity <= 12.25) { <<
325 fX0density = 2.0; <<
326 } <<
327 else if (fCdensity <= 13.804) { <<
328 fX0density = 2.0; <<
329 fX1density = 5.0; <<
330 } <<
331 else { <<
332 fX0density = 0.326 * fCdensity - 2.5; <<
333 fX1density = 5.0; <<
334 } <<
335 234
336 // special: Hydrogen << 235 //
337 if (1 == nelm && 1 == Z0) { << 236 // gases
338 fX0density = 1.837; << 237 //
339 fX1density = 3.0; << 238 if (State == kStateGas) {
340 fMdensity = 4.754; <<
341 } <<
342 239
343 // special: Helium << 240 const G4double ClimiG[] = { 10. , 10.5 , 11. , 11.5 , 12.25 , 13.804};
344 if (1 == nelm && 2 == Z0) { << 241 const G4double X0valG[] = { 1.6 , 1.7 , 1.8 , 1.9 , 2.0 , 2.0 };
345 fX0density = 2.191; << 242 const G4double X1valG[] = { 4.0 , 4.0 , 4.0 , 4.0 , 4.0 , 5.0 };
346 fX1density = 3.0; << 243
347 fMdensity = 3.297; << 244 icase = 5;
>> 245 fX0density = 0.326*fCdensity-2.5 ; fX1density = 5.0 ; fMdensity = 3. ;
>> 246 while((icase > 0)&&(fCdensity < ClimiG[icase])) icase-- ;
>> 247 fX0density = X0valG[icase] ; fX1density = X1valG[icase] ;
>> 248
>> 249 //special: Hydrogen
>> 250 if ((fMaterial->GetNumberOfElements()==1)&&(fMaterial->GetZ()==1.)) {
>> 251 fX0density = 1.837; fX1density = 3.0; fMdensity = 4.754;
>> 252 }
>> 253
>> 254 //special: Helium
>> 255 if ((fMaterial->GetNumberOfElements()==1)&&(fMaterial->GetZ()==2.)) {
>> 256 fX0density = 2.191; fX1density = 3.0; fMdensity = 3.297;
348 } 257 }
349 } 258 }
350 } 259 }
351 260
352 // change parameters if the gas is not in ST 261 // change parameters if the gas is not in STP.
353 // For the correction the density(STP) is ne << 262 // For the correction the density(STP) is needed.
354 // Density(STP) is calculated here : << 263 // Density(STP) is calculated here :
355 << 264
356 if (State == kStateGas) { << 265
>> 266 if (State == kStateGas) {
>> 267 G4double Density = fMaterial->GetDensity();
357 G4double Pressure = fMaterial->GetPressure 268 G4double Pressure = fMaterial->GetPressure();
358 G4double Temp = fMaterial->GetTemperature( << 269 G4double Temp = fMaterial->GetTemperature();
359 << 270
360 G4double DensitySTP = density * STP_Pressu << 271 G4double DensitySTP = Density*STP_Pressure*Temp/(Pressure*STP_Temperature);
361 << 272
362 G4double ParCorr = G4Log(density / Density << 273 G4double ParCorr = std::log(Density/DensitySTP);
363 << 274
364 fCdensity -= ParCorr; << 275 fCdensity -= ParCorr;
365 fX0density -= ParCorr / twoln10; << 276 fX0density -= ParCorr/twoln10;
366 fX1density -= ParCorr / twoln10; << 277 fX1density -= ParCorr/twoln10;
367 } << 278 }
368 << 279
369 // fAdensity parameter can be fixed for not << 280 // fAdensity parameter can be fixed for not conductive materials
370 if (0.0 == fD0density) { << 281 if(0.0 == fD0density) {
371 G4double Xa = fCdensity / twoln10; << 282 G4double Xa = fCdensity/twoln10;
372 fAdensity = twoln10 * (Xa - fX0density) / << 283 fAdensity = twoln10*(Xa-fX0density)
373 } << 284 /std::pow((fX1density-fX0density),fMdensity);
>> 285 }
>> 286 /*
>> 287 G4cout << "G4IonisParamMat: density effect data for <" << fMaterial->GetName()
>> 288 << "> " << G4endl;
>> 289 G4cout << "Eplasma(eV)= " << fPlasmaEnergy/eV
>> 290 << " rho= " << fAdjustmentFactor
>> 291 << " -C= " << fCdensity
>> 292 << " x0= " << fX0density
>> 293 << " x1= " << fX1density
>> 294 << " a= " << fAdensity
>> 295 << " m= " << fMdensity
>> 296 << G4endl;
>> 297 */
374 } 298 }
375 299
376 //....oooOO0OOooo........oooOO0OOooo........oo 300 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
377 301
378 void G4IonisParamMat::ComputeFluctModel() 302 void G4IonisParamMat::ComputeFluctModel()
379 { 303 {
380 // compute parameters for the energy loss fl 304 // compute parameters for the energy loss fluctuation model
381 // needs an 'effective Z' << 305 // needs an 'effective Z'
382 G4double Zeff = 0.; 306 G4double Zeff = 0.;
383 for (std::size_t i = 0; i < fMaterial->GetNu << 307 for (size_t i=0;i<fMaterial->GetNumberOfElements();i++) {
384 Zeff += (fMaterial->GetFractionVector())[i << 308 Zeff += (fMaterial->GetFractionVector())[i]
385 } << 309 *((*(fMaterial->GetElementVector()))[i]->GetZ());
386 if (Zeff > 2.1) { << 310 }
387 fF2fluct = 2.0 / Zeff; << 311 if (Zeff > 2.) fF2fluct = 2./Zeff ;
388 fF1fluct = 1. - fF2fluct; << 312 else fF2fluct = 0.;
389 fEnergy2fluct = 10. * Zeff * Zeff * CLHEP: << 313
390 fLogEnergy2fluct = G4Log(fEnergy2fluct); << 314 fF1fluct = 1. - fF2fluct;
391 fLogEnergy1fluct = (fLogMeanExcEnergy - fF << 315 fEnergy2fluct = 10.*Zeff*Zeff*eV;
392 } else if (Zeff > 1.1) { << 316 fLogEnergy2fluct = std::log(fEnergy2fluct);
393 fF2fluct = 0.0; << 317 fLogEnergy1fluct = (fLogMeanExcEnergy - fF2fluct*fLogEnergy2fluct)
394 fF1fluct = 1.0; << 318 /fF1fluct;
395 fEnergy2fluct = 40. * CLHEP::eV; << 319 fEnergy1fluct = std::exp(fLogEnergy1fluct);
396 fLogEnergy2fluct = G4Log(fEnergy2fluct); << 320 fEnergy0fluct = 10.*eV;
397 fLogEnergy1fluct = fLogMeanExcEnergy; <<
398 } else { <<
399 fF2fluct = 0.0; <<
400 fF1fluct = 1.0; <<
401 fEnergy2fluct = 10. * CLHEP::eV; <<
402 fLogEnergy2fluct = G4Log(fEnergy2fluct); <<
403 fLogEnergy1fluct = fLogMeanExcEnergy; <<
404 } <<
405 fEnergy1fluct = G4Exp(fLogEnergy1fluct); <<
406 fEnergy0fluct = 10. * CLHEP::eV; <<
407 fRateionexcfluct = 0.4; 321 fRateionexcfluct = 0.4;
408 } 322 }
409 323
410 //....oooOO0OOooo........oooOO0OOooo........oo 324 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
411 325
412 void G4IonisParamMat::ComputeIonParameters() 326 void G4IonisParamMat::ComputeIonParameters()
413 { 327 {
414 // get elements in the actual material, 328 // get elements in the actual material,
415 const G4ElementVector* theElementVector = fM << 329 const G4ElementVector* theElementVector = fMaterial->GetElementVector() ;
416 const G4double* theAtomicNumDensityVector = << 330 const G4double* theAtomicNumDensityVector =
417 const auto NumberOfElements = (G4int)fMateri << 331 fMaterial->GetAtomicNumDensityVector() ;
>> 332 const G4int NumberOfElements = fMaterial->GetNumberOfElements() ;
418 333
419 // loop for the elements in the material 334 // loop for the elements in the material
420 // to find out average values Z, vF, lF 335 // to find out average values Z, vF, lF
421 G4double z(0.0), vF(0.0), lF(0.0), a23(0.0); << 336 G4double z(0.0), vF(0.0), lF(0.0), norm(0.0), a23(0.0);
422 337
423 G4Pow* g4pow = G4Pow::GetInstance(); << 338 if( 1 == NumberOfElements ) {
424 if (1 == NumberOfElements) { <<
425 const G4Element* element = (*theElementVec 339 const G4Element* element = (*theElementVector)[0];
426 z = element->GetZ(); 340 z = element->GetZ();
427 vF = element->GetIonisation()->GetFermiVel << 341 vF= element->GetIonisation()->GetFermiVelocity();
428 lF = element->GetIonisation()->GetLFactor( << 342 lF= element->GetIonisation()->GetLFactor();
429 a23 = 1.0 / g4pow->A23(element->GetN()); << 343 a23 = std::pow(element->GetN(),-2./3.);
430 } << 344
431 else { << 345 } else {
432 G4double norm(0.0); << 346 for (G4int iel=0; iel<NumberOfElements; iel++)
433 for (G4int iel = 0; iel < NumberOfElements << 347 {
434 const G4Element* element = (*theElementV << 348 const G4Element* element = (*theElementVector)[iel] ;
435 const G4double weight = theAtomicNumDens << 349 const G4double weight = theAtomicNumDensityVector[iel] ;
436 norm += weight; << 350 norm += weight ;
437 z += element->GetZ() * weight; << 351 z += element->GetZ() * weight ;
438 vF += element->GetIonisation()->GetFermi << 352 vF += element->GetIonisation()->GetFermiVelocity() * weight ;
439 lF += element->GetIonisation()->GetLFact << 353 lF += element->GetIonisation()->GetLFactor() * weight ;
440 a23 += weight / g4pow->A23(element->GetN << 354 a23 += std::pow(element->GetN(),-2./3.) * weight ;
441 } << 355 }
442 if (norm > 0.0) { norm = 1.0/norm; } << 356 z /= norm;
443 z *= norm; << 357 vF /= norm;
444 vF *= norm; << 358 lF /= norm;
445 lF *= norm; << 359 a23 /= norm;
446 a23 *= norm; << 360 }
447 } << 361 fZeff = z;
448 fZeff = z; << 362 fLfactor = lF;
449 fLfactor = lF; << 363 fFermiEnergy = 25.*keV*vF*vF;
450 fFermiEnergy = 25. * CLHEP::keV * vF * vF; << 364 fInvA23 = a23;
451 fInvA23 = a23; <<
452 } 365 }
453 366
454 //....oooOO0OOooo........oooOO0OOooo........oo 367 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
455 368
456 void G4IonisParamMat::SetMeanExcitationEnergy( 369 void G4IonisParamMat::SetMeanExcitationEnergy(G4double value)
457 { 370 {
458 if (value == fMeanExcitationEnergy || value << 371 if(value == fMeanExcitationEnergy || value <= 0.0) { return; }
459 return; <<
460 } <<
461 if (G4NistManager::Instance()->GetVerbose() <<
462 G4cout << "G4Material: Mean excitation ene <<
463 << " Iold= " << fMeanExcitationEner <<
464 << G4endl; <<
465 } <<
466 372
>> 373 /*
>> 374 if (G4NistManager::Instance()->GetVerbose() > 0)
>> 375 G4cout << "G4Material: Mean excitation energy is changed for "
>> 376 << fMaterial->GetName()
>> 377 << " Iold= " << fMeanExcitationEnergy/eV
>> 378 << "eV; Inew= " << value/eV << " eV;"
>> 379 << G4endl;
>> 380 */
>> 381
467 fMeanExcitationEnergy = value; 382 fMeanExcitationEnergy = value;
>> 383 fLogMeanExcEnergy = std::log(value);
>> 384 ComputeDensityEffect();
>> 385 ComputeFluctModel();
>> 386 }
468 387
469 // add corrections to density effect << 388 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
470 G4double newlog = G4Log(value); <<
471 G4double corr = 2 * (newlog - fLogMeanExcEne <<
472 fCdensity += corr; <<
473 fX0density += corr / twoln10; <<
474 fX1density += corr / twoln10; <<
475 389
476 // recompute parameters of fluctuation model << 390 G4double G4IonisParamMat::FindMeanExcitationEnergy(const G4String& chFormula)
477 fLogMeanExcEnergy = newlog; << 391 {
478 ComputeFluctModel(); << 392
>> 393 // The data on mean excitation energy for compaunds
>> 394 // from "Stopping Powers for Electrons and Positrons"
>> 395 // ICRU Report N#37, 1984 (energy in eV)
>> 396
>> 397 const size_t numberOfMolecula = 79 ;
>> 398
>> 399 static G4String name[numberOfMolecula] = {
>> 400
>> 401 // gas
>> 402 "NH_3", "C_4H_10", "CO_2", "C_2H_6", "C_7H_16",
>> 403 "C_6H_14", "CH_4", "NO", "N_2O", "C_8H_18",
>> 404 "C_5H_12", "C_3H_8", "H_2O-Gas",
>> 405
>> 406 // liquid
>> 407 "C_3H_6O", "C_6H_5NH_2", "C_6H_6", "C_4H_9OH", "CCl_4",
>> 408 "C_6H_5Cl", "CHCl_3", "C_6H_12", "C_6H_4Cl_2", "C_4Cl_2H_8O",
>> 409 "C_2Cl_2H_4", "(C_2H_5)_2O", "C_2H_5OH", "C_3H_5(OH)_3","C_7H_16",
>> 410 "C_6H_14", "CH_3OH", "C_6H_5NO_2","C_5H_12", "C_3H_7OH",
>> 411 "C_5H_5N", "C_8H_8", "C_2Cl_4", "C_7H_8", "C_2Cl_3H",
>> 412 "H_2O", "C_8H_10",
>> 413
>> 414 //solid
>> 415 "C_5H_5N_5", "C_5H_5N_5O", "(C_6H_11NO)-nylon", "C_25H_52",
>> 416 "(C_2H_4)-Polyethylene", "(C_5H_8O-2)-Polymethil_Methacrylate",
>> 417 "(C_8H_8)-Polystyrene", "A-150-tissue", "Al_2O_3", "CaF_2",
>> 418 "LiF", "Photo_Emulsion", "(C_2F_4)-Teflon", "SiO_2"
>> 419
>> 420 } ;
>> 421
>> 422 static G4double meanExcitation[numberOfMolecula] = {
>> 423
>> 424 53.7, 48.3, 85.0, 45.4, 49.2,
>> 425 49.1, 41.7, 87.8, 84.9, 49.5,
>> 426 48.2, 47.1, 71.6,
>> 427
>> 428 64.2, 66.2, 63.4, 59.9, 166.3,
>> 429 89.1, 156.0, 56.4, 106.5, 103.3,
>> 430 111.9, 60.0, 62.9, 72.6, 54.4,
>> 431 54.0, 67.6, 75.8, 53.6, 61.1,
>> 432 66.2, 64.0, 159.2, 62.5, 148.1,
>> 433 75.0, 61.8,
>> 434
>> 435 71.4, 75.0, 63.9, 48.3, 57.4,
>> 436 74.0, 68.7, 65.1, 145.2, 166.,
>> 437 94.0, 331.0, 99.1, 139.2
>> 438
>> 439 } ;
>> 440
>> 441 G4double x = fMeanExcitationEnergy;
>> 442
>> 443 for(size_t i=0; i<numberOfMolecula; i++) {
>> 444 if(chFormula == name[i]) {
>> 445 x = meanExcitation[i]*eV;
>> 446 break;
>> 447 }
>> 448 }
>> 449 return x;
479 } 450 }
480 451
481 //....oooOO0OOooo........oooOO0OOooo........oo 452 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
482 453
483 void G4IonisParamMat::SetDensityEffectParamete << 454 G4IonisParamMat::~G4IonisParamMat()
484 G4double cd, G4double md, G4double ad, G4dou <<
485 { 455 {
486 // no check on consistence of user parameter << 456 if (fShellCorrectionVector) { delete [] fShellCorrectionVector; }
487 G4AutoLock l(&ionisMutex); << 457 if (fDensityData) { delete fDensityData; }
488 fCdensity = cd; << 458 fDensityData = 0;
489 fMdensity = md; << 459 fShellCorrectionVector = 0;
490 fAdensity = ad; <<
491 fX0density = x0; <<
492 fX1density = x1; <<
493 fD0density = d0; <<
494 l.unlock(); <<
495 } 460 }
496 461
497 //....oooOO0OOooo........oooOO0OOooo........oo 462 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
498 463
499 void G4IonisParamMat::SetDensityEffectParamete << 464 G4IonisParamMat::G4IonisParamMat(const G4IonisParamMat& right)
500 { << 465 {
501 G4AutoLock l(&ionisMutex); << 466 fShellCorrectionVector = 0;
502 const G4IonisParamMat* ipm = bmat->GetIonisa << 467 fMaterial = 0;
503 fCdensity = ipm->GetCdensity(); << 468 *this = right;
504 fMdensity = ipm->GetMdensity(); <<
505 fAdensity = ipm->GetAdensity(); <<
506 fX0density = ipm->GetX0density(); <<
507 fX1density = ipm->GetX1density(); <<
508 fD0density = ipm->GetD0density(); <<
509 <<
510 G4double corr = G4Log(bmat->GetDensity() / f <<
511 fCdensity += corr; <<
512 fX0density += corr / twoln10; <<
513 fX1density += corr / twoln10; <<
514 l.unlock(); <<
515 } <<
516 <<
517 //....oooOO0OOooo........oooOO0OOooo........oo <<
518 <<
519 void G4IonisParamMat::ComputeDensityEffectOnFl <<
520 { <<
521 if (val) { <<
522 if (nullptr == fDensityEffectCalc) { <<
523 G4int n = 0; <<
524 for (std::size_t i = 0; i < fMaterial->G <<
525 const G4int Z = fMaterial->GetElement( <<
526 n += G4AtomicShells::GetNumberOfShells <<
527 } <<
528 // The last level is the conduction leve <<
529 // make a dummy conductor level with zer <<
530 fDensityEffectCalc = new G4DensityEffect <<
531 } <<
532 } <<
533 else { <<
534 delete fDensityEffectCalc; <<
535 fDensityEffectCalc = nullptr; <<
536 } <<
537 } 469 }
538 470
539 //....oooOO0OOooo........oooOO0OOooo........oo 471 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
540 472
541 G4double G4IonisParamMat::FindMeanExcitationEn << 473 const G4IonisParamMat& G4IonisParamMat::operator=(const G4IonisParamMat& right)
542 { 474 {
543 G4double res = 0.0; << 475 if (this != &right)
544 // data from density effect data << 476 {
545 if (fDensityData != nullptr) { << 477 fMaterial = right.fMaterial;
546 G4int idx = fDensityData->GetIndex(mat->Ge << 478 fMeanExcitationEnergy = right.fMeanExcitationEnergy;
547 if (idx >= 0) { << 479 fLogMeanExcEnergy = right.fLogMeanExcEnergy;
548 res = fDensityData->GetMeanIonisationPot << 480 if(fShellCorrectionVector){ delete [] fShellCorrectionVector; }
549 } << 481 fShellCorrectionVector = new G4double[3];
550 } << 482 fShellCorrectionVector[0] = right.fShellCorrectionVector[0];
>> 483 fShellCorrectionVector[1] = right.fShellCorrectionVector[1];
>> 484 fShellCorrectionVector[2] = right.fShellCorrectionVector[2];
>> 485 fTaul = right.fTaul;
>> 486 fCdensity = right.fCdensity;
>> 487 fMdensity = right.fMdensity;
>> 488 fAdensity = right.fAdensity;
>> 489 fX0density = right.fX0density;
>> 490 fX1density = right.fX1density;
>> 491 fD0density = right.fD0density;
>> 492 fPlasmaEnergy = right.fPlasmaEnergy;
>> 493 fAdjustmentFactor = right.fAdjustmentFactor;
>> 494 fF1fluct = right.fF1fluct;
>> 495 fF2fluct = right.fF2fluct;
>> 496 fEnergy1fluct = right.fEnergy1fluct;
>> 497 fLogEnergy1fluct = right.fLogEnergy1fluct;
>> 498 fEnergy2fluct = right.fEnergy2fluct;
>> 499 fLogEnergy2fluct = right.fLogEnergy2fluct;
>> 500 fEnergy0fluct = right.fEnergy0fluct;
>> 501 fRateionexcfluct = right.fRateionexcfluct;
>> 502 fZeff = right.fZeff;
>> 503 fFermiEnergy = right.fFermiEnergy;
>> 504 fLfactor = right.fLfactor;
>> 505 fInvA23 = right.fInvA23;
>> 506 fBirks = right.fBirks;
>> 507 fMeanEnergyPerIon = right.fMeanEnergyPerIon;
>> 508 fDensityData = right.fDensityData;
>> 509 }
>> 510 return *this;
>> 511 }
551 512
552 // The data on mean excitation energy for co << 513 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
553 // from "Stopping Powers for Electrons and P << 514
554 // ICRU Report N#37, 1984 (energy in eV) << 515 G4int G4IonisParamMat::operator==(const G4IonisParamMat& right) const
555 // this value overwrites Density effect data << 516 {
556 G4String chFormula = mat->GetChemicalFormula << 517 return (this == (G4IonisParamMat*) &right);
557 if (! chFormula.empty()) { <<
558 static const size_t numberOfMolecula = 54; <<
559 // clang-format off <<
560 static const G4String name[numberOfMolecul <<
561 // gas 0 - 12 <<
562 "NH_3", "C_4H_10", "CO_2", <<
563 // "G4_AMMONIA", "G4_BUTANE","G4_CARBON_ <<
564 "C_6H_14-Gas", "CH_4", "NO", <<
565 // "G4_N-HEXANE" , "G4_METHANE", "x", "G <<
566 "C_5H_12-Gas", "C_3H_8", "H_2O-Gas", <<
567 // "G4_N-PENTANE", "G4_PROPANE", "G4_WAT <<
568 <<
569 // liquid 13 - 39 <<
570 "C_3H_6O", "C_6H_5NH_2", "C_6H_6", <<
571 //"G4_ACETONE","G4_ANILINE","G4_BENZENE" <<
572 "C_6H_5Cl", "CHCl_3", "C_6H_12", <<
573 //"G4_CHLOROBENZENE","G4_CHLOROFORM","G4 <<
574 //"G4_DICHLORODIETHYL_ETHER" <<
575 "C_2Cl_2H_4", "(C_2H_5)_2O", "C_2H_5OH", <<
576 //"G4_1,2-DICHLOROETHANE","G4_DIETHYL_ET <<
577 "C_6H_14", "CH_3OH", "C_6H_5NO_2 <<
578 //"G4_N-HEXANE","G4_METHANOL","G4_NITROB <<
579 "C_5H_5N", "C_8H_8", "C_2Cl_4", <<
580 //"G4_PYRIDINE","G4_POLYSTYRENE","G4_TET <<
581 "H_2O", "C_8H_10", <<
582 // "G4_WATER", "G4_XYLENE" <<
583 <<
584 // solid 40 - 53 <<
585 "C_5H_5N_5", "C_5H_5N_5O", "(C_6H_11NO <<
586 // "G4_ADENINE", "G4_GUANINE", "G4_NYLON <<
587 "(C_2H_4)-Polyethylene", "(C_5H_8O_2 <<
588 // "G4_ETHYLENE", "G4_PLEXIGLASS" <<
589 "(C_8H_8)-Polystyrene", "A-150-tiss <<
590 // "G4_POLYSTYRENE", "G4_A-150_TISSUE", <<
591 "LiF", "Photo_Emulsion", "(C_2F_ <<
592 // "G4_LITHIUM_FLUORIDE", "G4_PHOTO_EMUL <<
593 } ; <<
594 <<
595 static const G4double meanExcitation[numbe <<
596 <<
597 53.7, 48.3, 85.0, 45.4, 49.2, <<
598 49.1, 41.7, 87.8, 84.9, 49.5, <<
599 48.2, 47.1, 71.6, <<
600 <<
601 64.2, 66.2, 63.4, 59.9, 166.3, <<
602 89.1, 156.0, 56.4, 106.5, 103.3, <<
603 111.9, 60.0, 62.9, 72.6, 54.4, <<
604 54.0, 67.6, 75.8, 53.6, 61.1, <<
605 66.2, 64.0, 159.2, 62.5, 148.1, <<
606 75.0, 61.8, <<
607 <<
608 71.4, 75.0, 63.9, 48.3, 57.4, <<
609 74.0, 68.7, 65.1, 145.2, 166., <<
610 94.0, 331.0, 99.1, 139.2 <<
611 }; <<
612 // clang-format on <<
613 <<
614 for (std::size_t i = 0; i < numberOfMolecu <<
615 if (chFormula == name[i]) { <<
616 res = meanExcitation[i] * CLHEP::eV; <<
617 break; <<
618 } <<
619 } <<
620 } <<
621 return res; <<
622 } 518 }
>> 519
>> 520 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
>> 521
>> 522 G4int G4IonisParamMat::operator!=(const G4IonisParamMat& right) const
>> 523 {
>> 524 return (this != (G4IonisParamMat*) &right);
>> 525 }
>> 526
>> 527 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
>> 528
623 529