| 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 // 25 //
>> 26 // $Id: G4eeToHadronsModel.cc 94080 2015-11-05 15:04:02Z gcosmo $
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class header file 30 // GEANT4 Class header file
30 // 31 //
31 // 32 //
32 // File name: G4eeToHadronsModel 33 // File name: G4eeToHadronsModel
33 // 34 //
34 // Author: Vladimir Ivanchenko 35 // Author: Vladimir Ivanchenko
35 // 36 //
36 // Creation date: 12.08.2003 37 // Creation date: 12.08.2003
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 08-04-05 Major optimisation of internal int 40 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
40 // 18-05-05 Use optimized interfaces (V.Ivantc 41 // 18-05-05 Use optimized interfaces (V.Ivantchenko)
41 // 42 //
42 // 43 //
43 // ------------------------------------------- 44 // -------------------------------------------------------------------
44 // 45 //
45 46
46 47
47 //....oooOO0OOooo........oooOO0OOooo........oo 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
48 //....oooOO0OOooo........oooOO0OOooo........oo 49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
49 50
50 #include "G4eeToHadronsModel.hh" 51 #include "G4eeToHadronsModel.hh"
51 #include "Randomize.hh" 52 #include "Randomize.hh"
52 #include "G4PhysicalConstants.hh" 53 #include "G4PhysicalConstants.hh"
53 #include "G4SystemOfUnits.hh" 54 #include "G4SystemOfUnits.hh"
54 #include "G4Electron.hh" 55 #include "G4Electron.hh"
55 #include "G4Gamma.hh" 56 #include "G4Gamma.hh"
56 #include "G4Positron.hh" 57 #include "G4Positron.hh"
57 #include "G4PionPlus.hh" 58 #include "G4PionPlus.hh"
58 #include "Randomize.hh" 59 #include "Randomize.hh"
59 #include "G4Vee2hadrons.hh" 60 #include "G4Vee2hadrons.hh"
60 #include "G4PhysicsVector.hh" 61 #include "G4PhysicsVector.hh"
61 #include "G4PhysicsLogVector.hh" 62 #include "G4PhysicsLogVector.hh"
62 #include "G4Log.hh" 63 #include "G4Log.hh"
63 #include "G4Exp.hh" 64 #include "G4Exp.hh"
64 65
65 //....oooOO0OOooo........oooOO0OOooo........oo 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
66 67
67 using namespace std; 68 using namespace std;
68 69
69 G4eeToHadronsModel::G4eeToHadronsModel(G4Vee2h 70 G4eeToHadronsModel::G4eeToHadronsModel(G4Vee2hadrons* mod, G4int ver,
70 const G 71 const G4String& nam)
71 : G4VEmModel(nam), 72 : G4VEmModel(nam),
72 model(mod), 73 model(mod),
>> 74 crossPerElectron(0),
>> 75 crossBornPerElectron(0),
>> 76 isInitialised(false),
>> 77 nbins(100),
73 verbose(ver) 78 verbose(ver)
74 { 79 {
75 theGamma = G4Gamma::Gamma(); 80 theGamma = G4Gamma::Gamma();
76 highKinEnergy = HighEnergyLimit(); 81 highKinEnergy = HighEnergyLimit();
77 lowKinEnergy = LowEnergyLimit(); 82 lowKinEnergy = LowEnergyLimit();
78 emin = lowKinEnergy; 83 emin = lowKinEnergy;
79 emax = highKinEnergy; 84 emax = highKinEnergy;
80 peakKinEnergy = highKinEnergy; 85 peakKinEnergy = highKinEnergy;
81 epeak = emax; 86 epeak = emax;
82 //verbose = 1; 87 //verbose = 1;
83 } 88 }
84 89
85 //....oooOO0OOooo........oooOO0OOooo........oo 90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
86 91
87 G4eeToHadronsModel::~G4eeToHadronsModel() 92 G4eeToHadronsModel::~G4eeToHadronsModel()
88 { 93 {
89 delete model; 94 delete model;
90 } 95 }
91 96
92 //....oooOO0OOooo........oooOO0OOooo........oo 97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
93 98
94 void G4eeToHadronsModel::Initialise(const G4Pa 99 void G4eeToHadronsModel::Initialise(const G4ParticleDefinition*,
95 const G4Da 100 const G4DataVector&)
96 { 101 {
97 if(isInitialised) { return; } 102 if(isInitialised) { return; }
98 isInitialised = true; 103 isInitialised = true;
99 104
100 // CM system 105 // CM system
101 emin = model->LowEnergy(); << 106 emin = model->LowEnergy();
102 emax = model->HighEnergy(); << 107 emax = model->HighEnergy();
103 108
104 // peak energy 109 // peak energy
105 epeak = std::min(model->PeakEnergy(), emax); 110 epeak = std::min(model->PeakEnergy(), emax);
106 111
107 if(verbose>0) { 112 if(verbose>0) {
108 G4cout << "G4eeToHadronsModel::Initialise: 113 G4cout << "G4eeToHadronsModel::Initialise: " << G4endl;
109 G4cout << "CM System: emin(MeV)= " << emin 114 G4cout << "CM System: emin(MeV)= " << emin/MeV
110 << " epeak(MeV)= " << epeak/MeV 115 << " epeak(MeV)= " << epeak/MeV
111 << " emax(MeV)= " << emax/MeV 116 << " emax(MeV)= " << emax/MeV
112 << G4endl; 117 << G4endl;
113 } 118 }
114 119
115 crossBornPerElectron = model->PhysicsVector( 120 crossBornPerElectron = model->PhysicsVector();
116 crossPerElectron = model->PhysicsVector( 121 crossPerElectron = model->PhysicsVector();
117 nbins = (G4int)crossPerElectron->GetVectorLe << 122 nbins = crossPerElectron->GetVectorLength();
118 for(G4int i=0; i<nbins; ++i) { 123 for(G4int i=0; i<nbins; ++i) {
119 G4double e = crossPerElectron->Energy(i); 124 G4double e = crossPerElectron->Energy(i);
120 G4double cs = model->ComputeCrossSection(e 125 G4double cs = model->ComputeCrossSection(e);
121 crossBornPerElectron->PutValue(i, cs); 126 crossBornPerElectron->PutValue(i, cs);
122 } 127 }
123 ComputeCMCrossSectionPerElectron(); 128 ComputeCMCrossSectionPerElectron();
124 129
125 if(verbose>1) { 130 if(verbose>1) {
126 G4cout << "G4eeToHadronsModel: Cross secti << 131 G4cout << "G4eeToHadronsModel: Cross secsions per electron"
127 << " nbins= " << nbins 132 << " nbins= " << nbins
128 << " emin(MeV)= " << emin/MeV 133 << " emin(MeV)= " << emin/MeV
129 << " emax(MeV)= " << emax/MeV 134 << " emax(MeV)= " << emax/MeV
130 << G4endl; 135 << G4endl;
131 for(G4int i=0; i<nbins; ++i) { 136 for(G4int i=0; i<nbins; ++i) {
132 G4double e = crossPerElectron->Energy(i 137 G4double e = crossPerElectron->Energy(i);
133 G4double s1 = crossPerElectron->Value(e) 138 G4double s1 = crossPerElectron->Value(e);
134 G4double s2 = crossBornPerElectron->Valu 139 G4double s2 = crossBornPerElectron->Value(e);
135 G4cout << "E(MeV)= " << e/MeV 140 G4cout << "E(MeV)= " << e/MeV
136 << " cross(nb)= " << s1/nanobarn 141 << " cross(nb)= " << s1/nanobarn
137 << " crossBorn(nb)= " << s2/nano 142 << " crossBorn(nb)= " << s2/nanobarn
138 << G4endl; 143 << G4endl;
139 } 144 }
140 } 145 }
141 } 146 }
142 147
143 //....oooOO0OOooo........oooOO0OOooo........oo 148 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
144 149
145 G4double G4eeToHadronsModel::CrossSectionPerVo 150 G4double G4eeToHadronsModel::CrossSectionPerVolume(
146 const G4Material* mat, 151 const G4Material* mat,
147 const G4ParticleDefinition* p, 152 const G4ParticleDefinition* p,
148 G4double kineticEnergy, 153 G4double kineticEnergy,
149 G4double, G4double) 154 G4double, G4double)
150 { 155 {
151 return mat->GetElectronDensity()* 156 return mat->GetElectronDensity()*
152 ComputeCrossSectionPerElectron(p, kineticE 157 ComputeCrossSectionPerElectron(p, kineticEnergy);
153 } 158 }
154 159
155 //....oooOO0OOooo........oooOO0OOooo........oo 160 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
156 161
157 G4double G4eeToHadronsModel::ComputeCrossSecti 162 G4double G4eeToHadronsModel::ComputeCrossSectionPerAtom(
158 const G4 163 const G4ParticleDefinition* p,
159 G4double kineticEnergy, 164 G4double kineticEnergy,
160 G4double Z, G4double, 165 G4double Z, G4double,
161 G4double, G4double) 166 G4double, G4double)
162 { 167 {
163 return Z*ComputeCrossSectionPerElectron(p, k 168 return Z*ComputeCrossSectionPerElectron(p, kineticEnergy);
164 } 169 }
165 170
166 //....oooOO0OOooo........oooOO0OOooo........oo 171 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
167 172
168 G4double G4eeToHadronsModel::ComputeCrossSecti 173 G4double G4eeToHadronsModel::ComputeCrossSectionPerElectron(
169 cons 174 const G4ParticleDefinition*,
170 175 G4double energy,
171 176 G4double, G4double)
172 { 177 {
173 return crossPerElectron->Value(energy); << 178 G4double cross = 0.0;
>> 179 if(crossPerElectron) {
>> 180 cross = crossPerElectron->Value(energy);
>> 181 }
>> 182 return cross;
174 } 183 }
175 184
176 //....oooOO0OOooo........oooOO0OOooo........oo 185 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
177 186
178 void G4eeToHadronsModel::SampleSecondaries(std 187 void G4eeToHadronsModel::SampleSecondaries(std::vector<G4DynamicParticle*>* newp,
179 const G4MaterialCutsCouple*, 188 const G4MaterialCutsCouple*,
180 const G4DynamicParticle* dParticl 189 const G4DynamicParticle* dParticle,
181 G4double, 190 G4double,
182 G4double) 191 G4double)
183 { 192 {
184 G4double t = dParticle->GetKineticEnergy() + << 193 if(crossPerElectron) {
185 G4LorentzVector inlv = dParticle->Get4Moment << 194 G4double t = dParticle->GetKineticEnergy() + 2*electron_mass_c2;
186 G4LorentzVector(0.0,0.0,0.0,electron_mass_ << 195 G4LorentzVector inlv = dParticle->Get4Momentum() +
187 G4double e = inlv.m(); << 196 G4LorentzVector(0.0,0.0,0.0,electron_mass_c2);
188 G4ThreeVector inBoost = inlv.boostVector(); << 197 G4double e = inlv.m();
189 //G4cout << "G4eeToHadronsModel::SampleSecon << 198 G4ThreeVector inBoost = inlv.boostVector();
190 // << " " << inlv << " " << inBoost <<G4 << 199 //G4cout << "G4eeToHadronsModel::SampleSecondaries e= " << e
191 if(e > emin) { << 200 // << " " << inlv << " " << inBoost <<G4endl;
192 G4DynamicParticle* gamma = GenerateCMPhoto << 201 if(e > emin) {
193 G4LorentzVector gLv = gamma->Get4Momentum( << 202 G4DynamicParticle* gamma = GenerateCMPhoton(e);
194 G4LorentzVector lv(0.0,0.0,0.0,e); << 203 G4LorentzVector gLv = gamma->Get4Momentum();
195 lv -= gLv; << 204 G4LorentzVector lv(0.0,0.0,0.0,e);
196 G4double mass = lv.m(); << 205 lv -= gLv;
197 //G4cout << "mass= " << mass << " " << lv << 206 G4double mass = lv.m();
198 G4ThreeVector boost = lv.boostVector(); << 207 //G4cout << "mass= " << mass << " " << lv << G4endl;
199 //G4cout << "mass= " << mass << " " << boo << 208 G4ThreeVector boost = lv.boostVector();
200 const G4ThreeVector dir = gamma->GetMoment << 209 //G4cout << "mass= " << mass << " " << boost << G4endl;
201 model->SampleSecondaries(newp, mass, dir); << 210 const G4ThreeVector dir = gamma->GetMomentumDirection();
202 std::size_t np = newp->size(); << 211 model->SampleSecondaries(newp, mass, dir);
203 for(std::size_t j=0; j<np; ++j) { << 212 G4int np = newp->size();
204 G4DynamicParticle* dp = (*newp)[j]; << 213 for(G4int j=0; j<np; ++j) {
205 G4LorentzVector v = dp->Get4Momentum(); << 214 G4DynamicParticle* dp = (*newp)[j];
206 v.boost(boost); << 215 G4LorentzVector v = dp->Get4Momentum();
207 //G4cout << j << ". " << v << G4endl; << 216 v.boost(boost);
208 v.boost(inBoost); << 217 //G4cout << j << ". " << v << G4endl;
209 //G4cout << " " << v << G4endl; << 218 v.boost(inBoost);
210 dp->Set4Momentum(v); << 219 //G4cout << " " << v << G4endl;
211 t -= v.e(); << 220 dp->Set4Momentum(v);
212 } << 221 t -= v.e();
213 //G4cout << "Gamma " << gLv << G4endl; << 222 }
214 gLv.boost(inBoost); << 223 //G4cout << "Gamma " << gLv << G4endl;
215 //G4cout << " " << gLv << G4endl; << 224 gLv.boost(inBoost);
216 gamma->Set4Momentum(gLv); << 225 //G4cout << " " << gLv << G4endl;
217 t -= gLv.e(); << 226 gamma->Set4Momentum(gLv);
218 newp->push_back(gamma); << 227 t -= gLv.e();
219 if(std::abs(t) > CLHEP::MeV) { << 228 newp->push_back(gamma);
220 G4cout << "G4eeToHadronsModel::SampleSec << 229 if(fabs(t) > MeV) {
221 << t/MeV << " primary 4-momentum: " << << 230 G4cout << "G4eeToHadronsModel::SampleSecondaries: Ebalance(MeV)= "
>> 231 << t/MeV << " primary 4-momentum: " << inlv << G4endl;
>> 232 }
222 } 233 }
223 } 234 }
224 } 235 }
225 236
226 //....oooOO0OOooo........oooOO0OOooo........oo 237 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
227 238
228 void G4eeToHadronsModel::ComputeCMCrossSection 239 void G4eeToHadronsModel::ComputeCMCrossSectionPerElectron()
229 { 240 {
230 for(G4int i=0; i<nbins; i++) { 241 for(G4int i=0; i<nbins; i++) {
231 G4double e = crossPerElectron->Energy(i); 242 G4double e = crossPerElectron->Energy(i);
232 G4double cs = 0.0; 243 G4double cs = 0.0;
233 if(i > 0) { 244 if(i > 0) {
234 G4double LL = 2.0*G4Log(e/electron_mas 245 G4double LL = 2.0*G4Log(e/electron_mass_c2);
235 G4double bt = 2.0*fine_structure_const* 246 G4double bt = 2.0*fine_structure_const*(LL - 1.0)/pi;
236 G4double btm1= bt - 1.0; 247 G4double btm1= bt - 1.0;
237 G4double del = 1. + fine_structure_const 248 G4double del = 1. + fine_structure_const*(1.5*LL + pi*pi/3. -2.)/pi;
238 G4double s1 = crossBornPerElectron->Val 249 G4double s1 = crossBornPerElectron->Value(e);
239 G4double e1 = crossPerElectron->Energy( 250 G4double e1 = crossPerElectron->Energy(i-1);
240 G4double x1 = 1. - e1/e; 251 G4double x1 = 1. - e1/e;
241 cs += s1*(del*G4Exp(G4Log(x1)*bt) - bt*( 252 cs += s1*(del*G4Exp(G4Log(x1)*bt) - bt*(x1 - 0.25*x1*x1));
242 if(i > 1) { 253 if(i > 1) {
243 G4double e2 = e1; 254 G4double e2 = e1;
244 G4double x2 = x1; 255 G4double x2 = x1;
245 G4double s2 = crossBornPerElectron->Value(e 256 G4double s2 = crossBornPerElectron->Value(e2);
246 G4double w2 = bt*(del*G4Exp(G4Log(x2)*btm1) 257 G4double w2 = bt*(del*G4Exp(G4Log(x2)*btm1) - 1.0 + 0.5*x2);
247 G4double w1; 258 G4double w1;
248 259
249 for(G4int j=i-2; j>=0; --j) { 260 for(G4int j=i-2; j>=0; --j) {
250 e1 = crossPerElectron->Energy(j); 261 e1 = crossPerElectron->Energy(j);
251 x1 = 1. - e1/e; 262 x1 = 1. - e1/e;
252 s1 = crossBornPerElectron->Value(e1); 263 s1 = crossBornPerElectron->Value(e1);
253 w1 = bt*(del*G4Exp(G4Log(x1)*btm1) - 1.0 264 w1 = bt*(del*G4Exp(G4Log(x1)*btm1) - 1.0 + 0.5*x1);
254 cs += 0.5*(x1 - x2)*(w2*s2 + w1*s1); 265 cs += 0.5*(x1 - x2)*(w2*s2 + w1*s1);
255 e2 = e1; 266 e2 = e1;
256 x2 = x1; 267 x2 = x1;
257 s2 = s1; 268 s2 = s1;
258 w2 = w1; 269 w2 = w1;
259 } 270 }
260 } 271 }
261 } 272 }
262 crossPerElectron->PutValue(i, cs); 273 crossPerElectron->PutValue(i, cs);
263 } 274 }
264 } 275 }
265 276
266 //....oooOO0OOooo........oooOO0OOooo........oo 277 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
267 278
268 G4DynamicParticle* G4eeToHadronsModel::Generat 279 G4DynamicParticle* G4eeToHadronsModel::GenerateCMPhoton(G4double e)
269 { 280 {
270 G4double x; 281 G4double x;
271 G4DynamicParticle* gamma = nullptr; << 282 G4DynamicParticle* gamma = 0;
272 G4double LL = 2.0*G4Log(e/electron_mass_c2 283 G4double LL = 2.0*G4Log(e/electron_mass_c2);
273 G4double bt = 2.0*fine_structure_const*(LL 284 G4double bt = 2.0*fine_structure_const*(LL - 1.)/pi;
274 G4double btm1= bt - 1.0; 285 G4double btm1= bt - 1.0;
275 G4double del = 1. + fine_structure_const*(1. 286 G4double del = 1. + fine_structure_const*(1.5*LL + pi*pi/3. -2.)/pi;
276 287
277 G4double s0 = crossBornPerElectron->Value(e) 288 G4double s0 = crossBornPerElectron->Value(e);
278 G4double de = (emax - emin)/(G4double)nbins; 289 G4double de = (emax - emin)/(G4double)nbins;
279 G4double xmax = 0.5*(1.0 - (emin*emin)/(e*e) 290 G4double xmax = 0.5*(1.0 - (emin*emin)/(e*e));
280 G4double xmin = std::min(de/e, xmax); 291 G4double xmin = std::min(de/e, xmax);
281 G4double ds = s0*(del*G4Exp(G4Log(xmin)*bt) 292 G4double ds = s0*(del*G4Exp(G4Log(xmin)*bt) - bt*(xmin - 0.25*xmin*xmin));
282 G4double e1 = e*(1. - xmin); 293 G4double e1 = e*(1. - xmin);
283 294
284 //G4cout << "e1= " << e1 << G4endl; 295 //G4cout << "e1= " << e1 << G4endl;
285 if(e1 < emax && s0*G4UniformRand()<ds) { 296 if(e1 < emax && s0*G4UniformRand()<ds) {
286 x = xmin*G4Exp(G4Log(G4UniformRand())/bt); 297 x = xmin*G4Exp(G4Log(G4UniformRand())/bt);
287 } else { 298 } else {
288 299
289 x = xmin; 300 x = xmin;
290 G4double s1 = crossBornPerElectron->Value( 301 G4double s1 = crossBornPerElectron->Value(e1);
291 G4double w1 = bt*(del*G4Exp(G4Log(x)*btm1) 302 G4double w1 = bt*(del*G4Exp(G4Log(x)*btm1) - 1.0 + 0.5*x);
292 G4double grej = s1*w1; 303 G4double grej = s1*w1;
293 G4double f; 304 G4double f;
294 /* 305 /*
295 G4cout << "e(GeV)= " << e/GeV << " epeak( 306 G4cout << "e(GeV)= " << e/GeV << " epeak(GeV)= " << epeak/GeV
296 << " s1= " << s1 << " w1= " << w1 307 << " s1= " << s1 << " w1= " << w1
297 << " grej= " << grej << G4endl; 308 << " grej= " << grej << G4endl;
298 */ 309 */
299 // Above emax cross section is const 310 // Above emax cross section is const
300 if(e1 > emax) { 311 if(e1 > emax) {
301 x = 0.5*(1. - (emax*emax)/(e*e)); 312 x = 0.5*(1. - (emax*emax)/(e*e));
302 G4double s2 = crossBornPerElectron->Valu 313 G4double s2 = crossBornPerElectron->Value(emax);
303 G4double w2 = bt*(del*G4Exp(G4Log(x)*btm 314 G4double w2 = bt*(del*G4Exp(G4Log(x)*btm1) - 1.0 + 0.5*x);
304 grej = s2*w2; 315 grej = s2*w2;
305 //G4cout << "emax= " << emax << " s2= " 316 //G4cout << "emax= " << emax << " s2= " << s2 << " w2= " << w2
306 // << " grej= " << grej << G4endl; 317 // << " grej= " << grej << G4endl;
307 } 318 }
308 319
309 if(e1 > epeak) { 320 if(e1 > epeak) {
310 x = 0.5*(1.0 - (epeak*epeak)/(e*e)); 321 x = 0.5*(1.0 - (epeak*epeak)/(e*e));
311 G4double s2 = crossBornPerElectron->Valu 322 G4double s2 = crossBornPerElectron->Value(epeak);
312 G4double w2 = bt*(del*G4Exp(G4Log(x)*btm 323 G4double w2 = bt*(del*G4Exp(G4Log(x)*btm1) - 1.0 + 0.5*x);
313 grej = std::max(grej,s2*w2); 324 grej = std::max(grej,s2*w2);
314 //G4cout << "epeak= " << epeak << " s2= 325 //G4cout << "epeak= " << epeak << " s2= " << s2 << " w2= " << w2
315 // << " grej= " << grej << G4endl; 326 // << " grej= " << grej << G4endl;
316 } 327 }
317 G4int ii = 0; 328 G4int ii = 0;
318 const G4int iimax = 1000; 329 const G4int iimax = 1000;
319 do { 330 do {
320 x = xmin + G4UniformRand()*(xmax - xmin) 331 x = xmin + G4UniformRand()*(xmax - xmin);
321 332
322 G4double s2 = crossBornPerElectron->Valu 333 G4double s2 = crossBornPerElectron->Value(sqrt(1.0 - 2*x)*e);
323 G4double w2 = bt*(del*G4Exp(G4Log(x)*btm 334 G4double w2 = bt*(del*G4Exp(G4Log(x)*btm1) - 1.0 + 0.5*x);
324 /* 335 /*
325 G4cout << "x= " << x << " xmin= " << xmi 336 G4cout << "x= " << x << " xmin= " << xmin << " xmax= " << xmax
326 << " s2= " << s2 << " w2= " << w2 < 337 << " s2= " << s2 << " w2= " << w2 << G4endl;
327 */ 338 */
328 f = s2*w2; 339 f = s2*w2;
329 if(f > grej) { 340 if(f > grej) {
330 G4cout << "G4DynamicParticle* G4eeToHadronsM 341 G4cout << "G4DynamicParticle* G4eeToHadronsModel:WARNING "
331 << f << " > " << grej << " majorant i 342 << f << " > " << grej << " majorant is`small!"
332 << G4endl; 343 << G4endl;
333 } 344 }
334 if(++ii >= iimax) { break; } 345 if(++ii >= iimax) { break; }
335 // Loop checking, 07-Aug-2015, Vladimir 346 // Loop checking, 07-Aug-2015, Vladimir Ivanchenko
336 } while (f < grej*G4UniformRand()); 347 } while (f < grej*G4UniformRand());
337 } 348 }
338 349
339 G4ThreeVector dir(0.0,0.0,1.0); 350 G4ThreeVector dir(0.0,0.0,1.0);
340 if(G4UniformRand() > 0.5) { dir.set(0.0,0.0, 351 if(G4UniformRand() > 0.5) { dir.set(0.0,0.0,-1.0); }
341 //G4cout << "Egamma(MeV)= " << x*e << " " < 352 //G4cout << "Egamma(MeV)= " << x*e << " " << dir << G4endl;
342 gamma = new G4DynamicParticle(theGamma,dir,x 353 gamma = new G4DynamicParticle(theGamma,dir,x*e);
343 return gamma; 354 return gamma;
344 } 355 }
345 356
346 //....oooOO0OOooo........oooOO0OOooo........oo 357 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 358
347 359