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25 // 25 //
>> 26 // $Id: G4MuBetheBlochModel.cc,v 1.22 2006/06/29 19:49:36 gunter Exp $
>> 27 // GEANT4 tag $Name: geant4-08-01 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4MuBetheBlochModel 34 // File name: G4MuBetheBlochModel
33 // 35 //
34 // Author: Vladimir Ivanchenko on base 36 // Author: Vladimir Ivanchenko on base of Laszlo Urban code
35 // 37 //
36 // Creation date: 09.08.2002 38 // Creation date: 09.08.2002
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 // 04-12-02 Fix problem of G4DynamicParticle c 42 // 04-12-02 Fix problem of G4DynamicParticle constructor (V.Ivanchenko)
41 // 23-12-02 Change interface in order to move 43 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
42 // 27-01-03 Make models region aware (V.Ivanch 44 // 27-01-03 Make models region aware (V.Ivanchenko)
43 // 13-02-03 Add name (V.Ivanchenko) 45 // 13-02-03 Add name (V.Ivanchenko)
44 // 10-02-04 Calculation of radiative correctio 46 // 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.I)
45 // 08-04-05 Major optimisation of internal int 47 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
46 // 12-04-05 Add usage of G4EmCorrections (V.Iv 48 // 12-04-05 Add usage of G4EmCorrections (V.Ivanchenko)
47 // 13-02-06 ComputeCrossSectionPerElectron, Co 49 // 13-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
48 // 50 //
49 51
50 // 52 //
51 // ------------------------------------------- 53 // -------------------------------------------------------------------
52 // 54 //
53 55
>> 56
54 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
55 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
56 59
57 #include "G4MuBetheBlochModel.hh" 60 #include "G4MuBetheBlochModel.hh"
58 #include "G4PhysicalConstants.hh" <<
59 #include "G4SystemOfUnits.hh" <<
60 #include "Randomize.hh" 61 #include "Randomize.hh"
61 #include "G4Electron.hh" 62 #include "G4Electron.hh"
62 #include "G4LossTableManager.hh" 63 #include "G4LossTableManager.hh"
63 #include "G4EmCorrections.hh" 64 #include "G4EmCorrections.hh"
64 #include "G4ParticleChangeForLoss.hh" 65 #include "G4ParticleChangeForLoss.hh"
65 #include "G4Log.hh" <<
66 #include "G4Exp.hh" <<
67 #include "G4DeltaAngle.hh" <<
68 66
69 G4double G4MuBetheBlochModel::xgi[]={ 0.0199, 67 G4double G4MuBetheBlochModel::xgi[]={ 0.0199, 0.1017, 0.2372, 0.4083, 0.5917,
70 0.7628, 68 0.7628, 0.8983, 0.9801 };
71 << 69
72 G4double G4MuBetheBlochModel::wgi[]={ 0.0506, 70 G4double G4MuBetheBlochModel::wgi[]={ 0.0506, 0.1112, 0.1569, 0.1813, 0.1813,
73 0.1569, 71 0.1569, 0.1112, 0.0506 };
74 72
75 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76 74
>> 75 using namespace std;
>> 76
77 G4MuBetheBlochModel::G4MuBetheBlochModel(const 77 G4MuBetheBlochModel::G4MuBetheBlochModel(const G4ParticleDefinition* p,
78 const 78 const G4String& nam)
79 : G4VEmModel(nam), 79 : G4VEmModel(nam),
80 limitRadCorrection(250.*CLHEP::MeV), << 80 particle(0),
81 limitKinEnergy(100.*CLHEP::keV), << 81 limitKinEnergy(100.*keV),
82 logLimitKinEnergy(G4Log(limitKinEnergy)), << 82 logLimitKinEnergy(log(limitKinEnergy)),
83 twoln10(2.0*G4Log(10.0)), << 83 twoln10(2.0*log(10.0)),
84 alphaprime(CLHEP::fine_structure_const/CLH << 84 bg2lim(0.0169),
>> 85 taulim(8.4146e-3),
>> 86 alphaprime(fine_structure_const/twopi)
85 { 87 {
86 theElectron = G4Electron::Electron(); 88 theElectron = G4Electron::Electron();
87 corr = G4LossTableManager::Instance()->EmCor 89 corr = G4LossTableManager::Instance()->EmCorrections();
88 if(nullptr != p) { SetParticle(p); } <<
89 } <<
90 90
91 //....oooOO0OOooo........oooOO0OOooo........oo << 91 if(p) SetParticle(p);
92 <<
93 G4double G4MuBetheBlochModel::MinEnergyCut(con <<
94 con <<
95 { <<
96 return couple->GetMaterial()->GetIonisation( <<
97 } 92 }
98 93
99 //....oooOO0OOooo........oooOO0OOooo........oo << 94 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
100 95
101 G4double G4MuBetheBlochModel::MaxSecondaryEner << 96 G4MuBetheBlochModel::~G4MuBetheBlochModel()
102 << 97 {}
103 { <<
104 G4double tau = kinEnergy/mass; <<
105 G4double tmax = 2.0*CLHEP::electron_mass_c2* <<
106 (1. + 2.0*(tau + 1.)*ratio + <<
107 return tmax; <<
108 } <<
109 98
110 //....oooOO0OOooo........oooOO0OOooo........oo 99 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
111 100
112 void G4MuBetheBlochModel::SetParticle(const G4 101 void G4MuBetheBlochModel::SetParticle(const G4ParticleDefinition* p)
113 { 102 {
114 if(nullptr == particle) { << 103 if(!particle) {
115 particle = p; 104 particle = p;
116 mass = particle->GetPDGMass(); 105 mass = particle->GetPDGMass();
117 massSquare = mass*mass; 106 massSquare = mass*mass;
118 ratio = CLHEP::electron_mass_c2/mass; << 107 ratio = electron_mass_c2/mass;
119 } 108 }
120 } 109 }
121 110
122 //....oooOO0OOooo........oooOO0OOooo........oo 111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
123 112
>> 113 G4double G4MuBetheBlochModel::MinEnergyCut(const G4ParticleDefinition*,
>> 114 const G4MaterialCutsCouple* couple)
>> 115 {
>> 116 return couple->GetMaterial()->GetIonisation()->GetMeanExcitationEnergy();
>> 117 }
>> 118
>> 119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 120
124 void G4MuBetheBlochModel::Initialise(const G4P 121 void G4MuBetheBlochModel::Initialise(const G4ParticleDefinition* p,
125 const G4D 122 const G4DataVector&)
126 { 123 {
127 SetParticle(p); << 124 if(p) SetParticle(p);
128 if(nullptr == fParticleChange) { << 125
129 fParticleChange = GetParticleChangeForLoss << 126 if(pParticleChange)
130 if(UseAngularGeneratorFlag() && nullptr == << 127 fParticleChange = reinterpret_cast<G4ParticleChangeForLoss*>
131 SetAngularDistribution(new G4DeltaAngle( << 128 (pParticleChange);
132 } << 129 else
133 } << 130 fParticleChange = new G4ParticleChangeForLoss();
134 } 131 }
135 132
136 //....oooOO0OOooo........oooOO0OOooo........oo 133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
137 134
138 G4double G4MuBetheBlochModel::ComputeCrossSect 135 G4double G4MuBetheBlochModel::ComputeCrossSectionPerElectron(
139 con 136 const G4ParticleDefinition* p,
140 137 G4double kineticEnergy,
141 138 G4double cutEnergy,
142 139 G4double maxKinEnergy)
143 { 140 {
144 G4double cross = 0.0; 141 G4double cross = 0.0;
145 G4double tmax = MaxSecondaryEnergy(p, kineti 142 G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
146 G4double maxEnergy = std::min(tmax, maxKinEn << 143 G4double maxEnergy = min(tmax,maxKinEnergy);
147 if(cutEnergy < maxEnergy) { 144 if(cutEnergy < maxEnergy) {
148 145
149 G4double totEnergy = kineticEnergy + mass; 146 G4double totEnergy = kineticEnergy + mass;
150 G4double energy2 = totEnergy*totEnergy; << 147 G4double energy2 = totEnergy*totEnergy;
151 G4double beta2 = kineticEnergy*(kineticEne << 148 G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/energy2;
152 149
153 cross = 1.0/cutEnergy - 1.0/maxEnergy - << 150 cross = 1.0/cutEnergy - 1.0/maxEnergy - beta2*log(maxEnergy/cutEnergy)/tmax
154 beta2*G4Log(maxEnergy/cutEnergy)/tmax + << 151 + 0.5*(maxEnergy - cutEnergy)/energy2;
155 0.5*(maxEnergy - cutEnergy)/energy2; <<
156 152
157 // radiative corrections of R. Kokoulin 153 // radiative corrections of R. Kokoulin
158 if (maxEnergy > limitKinEnergy && kineticE << 154 if (maxEnergy > limitKinEnergy) {
159 155
160 G4double logtmax = G4Log(maxEnergy); << 156 G4double logtmax = log(maxEnergy);
161 G4double logtmin = G4Log(std::max(cutEne << 157 G4double logtmin = log(max(cutEnergy,limitKinEnergy));
162 G4double logstep = logtmax - logtmin; 158 G4double logstep = logtmax - logtmin;
163 G4double dcross = 0.0; 159 G4double dcross = 0.0;
164 160
165 for (G4int ll=0; ll<8; ++ll) { << 161 for (G4int ll=0; ll<8; ll++)
166 G4double ep = G4Exp(logtmin + xgi[ll]* << 162 {
167 G4double a1 = G4Log(1.0 + 2.0*ep/CLHEP << 163 G4double ep = exp(logtmin + xgi[ll]*logstep);
168 G4double a3 = G4Log(4.0*totEnergy*(tot << 164 G4double a1 = log(1.0 + 2.0*ep/electron_mass_c2);
>> 165 G4double a3 = log(4.0*totEnergy*(totEnergy - ep)/massSquare);
169 dcross += wgi[ll]*(1.0/ep - beta2/tmax 166 dcross += wgi[ll]*(1.0/ep - beta2/tmax + 0.5*ep/energy2)*a1*(a3 - a1);
170 } 167 }
>> 168
171 cross += dcross*logstep*alphaprime; 169 cross += dcross*logstep*alphaprime;
172 } 170 }
173 cross *= CLHEP::twopi_mc2_rcl2/beta2; << 171
>> 172 cross *= twopi_mc2_rcl2/beta2;
>> 173
174 } 174 }
>> 175
175 // G4cout << "tmin= " << cutEnergy << " tma 176 // G4cout << "tmin= " << cutEnergy << " tmax= " << tmax
176 // << " cross= " << cross << G4endl; << 177 // << " cross= " << cross << G4endl;
>> 178
177 return cross; 179 return cross;
178 } 180 }
179 181
180 //....oooOO0OOooo........oooOO0OOooo........oo 182 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
181 183
182 G4double G4MuBetheBlochModel::ComputeCrossSect 184 G4double G4MuBetheBlochModel::ComputeCrossSectionPerAtom(
183 con 185 const G4ParticleDefinition* p,
184 186 G4double kineticEnergy,
185 << 187 G4double Z, G4double,
186 188 G4double cutEnergy,
187 189 G4double maxEnergy)
188 { 190 {
189 G4double cross = Z*ComputeCrossSectionPerEle 191 G4double cross = Z*ComputeCrossSectionPerElectron
190 (p,ki 192 (p,kineticEnergy,cutEnergy,maxEnergy);
191 return cross; 193 return cross;
192 } 194 }
193 195
194 //....oooOO0OOooo........oooOO0OOooo........oo 196 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
195 197
196 G4double G4MuBetheBlochModel::CrossSectionPerV 198 G4double G4MuBetheBlochModel::CrossSectionPerVolume(
197 con << 199 const G4Material* material,
198 con 200 const G4ParticleDefinition* p,
199 201 G4double kineticEnergy,
200 202 G4double cutEnergy,
201 203 G4double maxEnergy)
202 { 204 {
203 G4double eDensity = material->GetElectronDen 205 G4double eDensity = material->GetElectronDensity();
204 G4double cross = eDensity*ComputeCrossSectio 206 G4double cross = eDensity*ComputeCrossSectionPerElectron
205 (p,ki 207 (p,kineticEnergy,cutEnergy,maxEnergy);
206 return cross; 208 return cross;
207 } 209 }
208 210
209 //....oooOO0OOooo........oooOO0OOooo........oo 211 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
210 212
211 G4double G4MuBetheBlochModel::ComputeDEDXPerVo 213 G4double G4MuBetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
212 << 214 const G4ParticleDefinition* p,
213 << 215 G4double kineticEnergy,
214 << 216 G4double cut)
215 { 217 {
216 G4double tmax = MaxSecondaryEnergy(p, kinet 218 G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
217 G4double tau = kineticEnergy/mass; 219 G4double tau = kineticEnergy/mass;
218 G4double cutEnergy = std::min(cut, tmax); << 220 G4double cutEnergy = min(cut,tmax);
219 G4double gam = tau + 1.0; 221 G4double gam = tau + 1.0;
220 G4double bg2 = tau * (tau+2.0); 222 G4double bg2 = tau * (tau+2.0);
221 G4double beta2 = bg2/(gam*gam); 223 G4double beta2 = bg2/(gam*gam);
222 224
223 G4double eexc = material->GetIonisation()-> 225 G4double eexc = material->GetIonisation()->GetMeanExcitationEnergy();
224 G4double eexc2 = eexc*eexc; 226 G4double eexc2 = eexc*eexc;
>> 227 G4double cden = material->GetIonisation()->GetCdensity();
>> 228 G4double mden = material->GetIonisation()->GetMdensity();
>> 229 G4double aden = material->GetIonisation()->GetAdensity();
>> 230 G4double x0den = material->GetIonisation()->GetX0density();
>> 231 G4double x1den = material->GetIonisation()->GetX1density();
225 232
226 G4double eDensity = material->GetElectronDen 233 G4double eDensity = material->GetElectronDensity();
227 234
228 G4double dedx = G4Log(2.0*CLHEP::electron_ma << 235 G4double dedx = log(2.0*electron_mass_c2*bg2*cutEnergy/eexc2)
229 -(1.0 + cutEnergy/tmax)*beta2 236 -(1.0 + cutEnergy/tmax)*beta2;
230 237
231 G4double totEnergy = kineticEnergy + mass; 238 G4double totEnergy = kineticEnergy + mass;
232 G4double del = 0.5*cutEnergy/totEnergy; 239 G4double del = 0.5*cutEnergy/totEnergy;
233 dedx += del*del; 240 dedx += del*del;
234 241
235 // density correction 242 // density correction
236 G4double x = G4Log(bg2)/twoln10; << 243 G4double x = log(bg2)/twoln10;
237 dedx -= material->GetIonisation()->DensityCo << 244 if ( x >= x0den ) {
>> 245 dedx -= twoln10*x - cden ;
>> 246 if ( x < x1den ) dedx -= aden*pow((x1den-x),mden) ;
>> 247 }
238 248
239 // shell and high order corrections << 249 // shell correction
240 dedx -= 2.0*corr->ShellCorrection(p,material 250 dedx -= 2.0*corr->ShellCorrection(p,material,kineticEnergy);
241 251
>> 252 // now compute the total ionization loss
>> 253
>> 254 if (dedx < 0.0) dedx = 0.0 ;
>> 255
242 // radiative corrections of R. Kokoulin 256 // radiative corrections of R. Kokoulin
243 if (cutEnergy > limitKinEnergy && kineticEne << 257 if (cutEnergy > limitKinEnergy) {
244 258
245 G4double logtmax = G4Log(cutEnergy); << 259 G4double logtmax = log(cutEnergy);
246 G4double logstep = logtmax - logLimitKinEn 260 G4double logstep = logtmax - logLimitKinEnergy;
247 G4double dloss = 0.0; 261 G4double dloss = 0.0;
248 G4double ftot2= 0.5/(totEnergy*totEnergy); 262 G4double ftot2= 0.5/(totEnergy*totEnergy);
249 263
250 for (G4int ll=0; ll<8; ++ll) { << 264 for (G4int ll=0; ll<8; ll++)
251 G4double ep = G4Exp(logLimitKinEnergy + << 265 {
252 G4double a1 = G4Log(1.0 + 2.0*ep/CLHEP:: << 266 G4double ep = exp(logLimitKinEnergy + xgi[ll]*logstep);
253 G4double a3 = G4Log(4.0*totEnergy*(totEn << 267 G4double a1 = log(1.0 + 2.0*ep/electron_mass_c2);
>> 268 G4double a3 = log(4.0*totEnergy*(totEnergy - ep)/massSquare);
254 dloss += wgi[ll]*(1.0 - beta2*ep/tmax + 269 dloss += wgi[ll]*(1.0 - beta2*ep/tmax + ep*ep*ftot2)*a1*(a3 - a1);
255 } 270 }
256 dedx += dloss*logstep*alphaprime; 271 dedx += dloss*logstep*alphaprime;
257 } 272 }
258 dedx *= CLHEP::twopi_mc2_rcl2*eDensity/beta2 << 273
>> 274 dedx *= twopi_mc2_rcl2*eDensity/beta2;
259 275
260 //High order corrections 276 //High order corrections
261 dedx += corr->HighOrderCorrections(p,materia << 277 dedx += corr->HighOrderCorrections(p,material,kineticEnergy);
262 dedx = std::max(dedx, 0.); << 278
263 return dedx; 279 return dedx;
264 } 280 }
265 281
266 //....oooOO0OOooo........oooOO0OOooo........oo 282 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
267 283
268 void G4MuBetheBlochModel::SampleSecondaries( << 284 vector<G4DynamicParticle*>* G4MuBetheBlochModel::SampleSecondaries(
269 std::vector<G4Dynami << 285 const G4MaterialCutsCouple*,
270 const G4MaterialCutsCouple* couple, << 286 const G4DynamicParticle* dp,
271 const G4DynamicParticle* dp, << 287 G4double minKinEnergy,
272 G4double minKinEnergy, << 288 G4double maxEnergy)
273 G4double maxEnergy) <<
274 { 289 {
275 G4double kineticEnergy = dp->GetKineticEnerg << 290 G4double tmax = MaxSecondaryKinEnergy(dp);
276 G4double tmax = MaxSecondaryEnergy(dp->GetDe << 291 G4double maxKinEnergy = min(maxEnergy,tmax);
277 G4double maxKinEnergy = std::min(maxEnergy, << 292 if(minKinEnergy >= maxKinEnergy) return 0;
278 if(minKinEnergy >= maxKinEnergy) { return; } <<
279 293
280 G4double totEnergy = kineticEnergy + mass; << 294 G4double kineticEnergy = dp->GetKineticEnergy();
281 G4double etot2 = totEnergy*totEnergy; << 295 G4double totEnergy = kineticEnergy + mass;
282 G4double beta2 = kineticEnergy*(kineticEnerg << 296 G4double etot2 = totEnergy*totEnergy;
>> 297 G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/etot2;
283 298
284 G4double grej = 1.; 299 G4double grej = 1.;
285 G4bool radC = (tmax > limitKinEnergy && kine << 300 if(tmax > limitKinEnergy) {
286 if(radC) { << 301 G4double a0 = log(2.*totEnergy/mass);
287 G4double a0 = G4Log(2.*totEnergy/mass); << 302 grej += alphaprime*a0*a0;
288 grej += alphaprime*a0*a0; <<
289 } 303 }
290 304
291 G4double tkin, f; << 305 G4double deltaKinEnergy, f;
292 306
293 // sampling follows ... 307 // sampling follows ...
294 do { 308 do {
295 G4double q = G4UniformRand(); 309 G4double q = G4UniformRand();
296 tkin = minKinEnergy*maxKinEnergy/(minKinEn << 310 deltaKinEnergy = minKinEnergy*maxKinEnergy
297 f = 1.0 - beta2*tkin/tmax + 0.5*tkin*tkin/ << 311 /(minKinEnergy*(1.0 - q) + maxKinEnergy*q);
>> 312
>> 313
>> 314 f = 1.0 - beta2*deltaKinEnergy/tmax
>> 315 + 0.5*deltaKinEnergy*deltaKinEnergy/etot2;
298 316
299 if(radC && tkin > limitKinEnergy) { << 317 if(deltaKinEnergy > limitKinEnergy) {
300 G4double a1 = G4Log(1.0 + 2.0*tkin/CLHEP << 318 G4double a1 = log(1.0 + 2.0*deltaKinEnergy/electron_mass_c2);
301 G4double a3 = G4Log(4.0*totEnergy*(totEn << 319 G4double a3 = log(4.0*totEnergy*(totEnergy - deltaKinEnergy)/massSquare);
302 f *= (1. + alphaprime*a1*(a3 - a1)); 320 f *= (1. + alphaprime*a1*(a3 - a1));
303 } 321 }
304 322
305 if(f > grej) { 323 if(f > grej) {
306 G4cout << "G4MuBetheBlochModel::Sample 324 G4cout << "G4MuBetheBlochModel::SampleSecondary Warning! "
307 << "Majorant " << grej << " < " 325 << "Majorant " << grej << " < "
308 << f << " for edelta= " << tkin << 326 << f << " for edelta= " << deltaKinEnergy
309 << " tmin= " << minKinEnergy << 327 << " tmin= " << minKinEnergy << " max= " << maxKinEnergy
310 << G4endl; 328 << G4endl;
311 } 329 }
312 // Loop checking, 03-Aug-2015, Vladimir Iv << 330
>> 331
313 } while( grej*G4UniformRand() > f ); 332 } while( grej*G4UniformRand() > f );
314 333
315 G4ThreeVector deltaDirection; << 334 G4double deltaMomentum =
>> 335 sqrt(deltaKinEnergy * (deltaKinEnergy + 2.0*electron_mass_c2));
>> 336 G4double totalMomentum = totEnergy*sqrt(beta2);
>> 337 G4double cost = deltaKinEnergy * (totEnergy + electron_mass_c2) /
>> 338 (deltaMomentum * totalMomentum);
>> 339
>> 340 G4double sint = sqrt(1.0 - cost*cost);
>> 341
>> 342 G4double phi = twopi * G4UniformRand() ;
>> 343
>> 344 G4ThreeVector deltaDirection(sint*cos(phi),sint*sin(phi), cost) ;
>> 345 G4ThreeVector direction = dp->GetMomentumDirection();
>> 346 deltaDirection.rotateUz(direction);
316 347
317 if(UseAngularGeneratorFlag()) { << 348 // primary change
318 const G4Material* mat = couple->GetMateria << 349 kineticEnergy -= deltaKinEnergy;
319 deltaDirection = GetAngularDistribution()- << 350 G4ThreeVector dir = totalMomentum*direction - deltaMomentum*deltaDirection;
320 SelectRandomAtomNumber(ma << 351 direction = dir.unit();
321 } else { << 352 fParticleChange->SetProposedKineticEnergy(kineticEnergy);
322 << 353 fParticleChange->SetProposedMomentumDirection(direction);
323 G4double deltaMom = std::sqrt(tkin * (tkin <<
324 G4double totalMom = totEnergy*std::sqrt(be <<
325 G4double cost = tkin * (totEnergy + CLHEP: <<
326 (deltaMom * totalMom); <<
327 cost = std::min(cost, 1.0); <<
328 const G4double sint = std::sqrt((1.0 - cos <<
329 const G4double phi = twopi*G4UniformRand() <<
330 354
331 deltaDirection.set(sint*std::cos(phi),sint <<
332 deltaDirection.rotateUz(dp->GetMomentumDir <<
333 } <<
334 // create G4DynamicParticle object for delta 355 // create G4DynamicParticle object for delta ray
335 auto delta = new G4DynamicParticle(theElectr << 356 G4DynamicParticle* delta = new G4DynamicParticle(theElectron,
>> 357 deltaDirection,deltaKinEnergy);
>> 358 vector<G4DynamicParticle*>* vdp = new vector<G4DynamicParticle*>;
336 vdp->push_back(delta); 359 vdp->push_back(delta);
337 360
338 // primary change << 361 return vdp;
339 kineticEnergy -= tkin; <<
340 G4ThreeVector dir = dp->GetMomentum() - delt <<
341 dir = dir.unit(); <<
342 fParticleChange->SetProposedKineticEnergy(ki <<
343 fParticleChange->SetProposedMomentumDirectio <<
344 } 362 }
345 363
346 //....oooOO0OOooo........oooOO0OOooo........oo 364 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
347 365