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25 // 25 //
>> 26 // $Id: G4BraggIonModel.cc 95832 2016-02-26 11:12:31Z gcosmo $
>> 27 //
26 // ------------------------------------------- 28 // -------------------------------------------------------------------
27 // 29 //
28 // GEANT4 Class file 30 // GEANT4 Class file
29 // 31 //
30 // 32 //
31 // File name: G4BraggIonModel 33 // File name: G4BraggIonModel
32 // 34 //
33 // Author: Vladimir Ivanchenko 35 // Author: Vladimir Ivanchenko
34 // 36 //
35 // Creation date: 13.10.2004 37 // Creation date: 13.10.2004
36 // 38 //
37 // Modifications: 39 // Modifications:
38 // 11-05-05 Major optimisation of internal int 40 // 11-05-05 Major optimisation of internal interfaces (V.Ivantchenko)
39 // 29-11-05 Do not use G4Alpha class (V.Ivantc 41 // 29-11-05 Do not use G4Alpha class (V.Ivantchenko)
40 // 15-02-06 ComputeCrossSectionPerElectron, Co 42 // 15-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
41 // 25-04-06 Add stopping data from ASTAR (V.Iv 43 // 25-04-06 Add stopping data from ASTAR (V.Ivanchenko)
42 // 23-10-06 Reduce lowestKinEnergy to 0.25 keV 44 // 23-10-06 Reduce lowestKinEnergy to 0.25 keV (V.Ivanchenko)
43 // 12-08-08 Added methods GetParticleCharge, G 45 // 12-08-08 Added methods GetParticleCharge, GetChargeSquareRatio,
44 // CorrectionsAlongStep needed for io 46 // CorrectionsAlongStep needed for ions(V.Ivanchenko)
45 // 47 //
46 48
47 // Class Description: 49 // Class Description:
48 // 50 //
49 // Implementation of energy loss and delta-ele 51 // Implementation of energy loss and delta-electron production by
50 // slow charged heavy particles 52 // slow charged heavy particles
51 53
52 // ------------------------------------------- 54 // -------------------------------------------------------------------
53 // 55 //
54 56
55 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
56 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 59
58 #include "G4BraggIonModel.hh" 60 #include "G4BraggIonModel.hh"
59 #include "G4PhysicalConstants.hh" 61 #include "G4PhysicalConstants.hh"
60 #include "G4SystemOfUnits.hh" 62 #include "G4SystemOfUnits.hh"
61 #include "Randomize.hh" 63 #include "Randomize.hh"
62 #include "G4Electron.hh" 64 #include "G4Electron.hh"
63 #include "G4ParticleChangeForLoss.hh" 65 #include "G4ParticleChangeForLoss.hh"
>> 66 #include "G4LossTableManager.hh"
64 #include "G4EmCorrections.hh" 67 #include "G4EmCorrections.hh"
65 #include "G4DeltaAngle.hh" 68 #include "G4DeltaAngle.hh"
66 #include "G4ICRU90StoppingData.hh" <<
67 #include "G4ASTARStopping.hh" <<
68 #include "G4PSTARStopping.hh" <<
69 #include "G4NistManager.hh" <<
70 #include "G4Log.hh" 69 #include "G4Log.hh"
71 #include "G4Exp.hh" 70 #include "G4Exp.hh"
72 #include "G4AutoLock.hh" <<
73 71
74 //....oooOO0OOooo........oooOO0OOooo........oo 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
75 73
76 G4ASTARStopping* G4BraggIonModel::fASTAR = nul << 74 using namespace std;
77 75
78 namespace << 76 G4ASTARStopping* G4BraggIonModel::fASTAR = nullptr;
79 { <<
80 G4Mutex alphaMutex = G4MUTEX_INITIALIZER; <<
81 } <<
82 77
83 G4BraggIonModel::G4BraggIonModel(const G4Parti 78 G4BraggIonModel::G4BraggIonModel(const G4ParticleDefinition* p,
84 const G4Strin 79 const G4String& nam)
85 : G4BraggModel(p, nam) << 80 : G4VEmModel(nam),
86 { << 81 corr(nullptr),
87 HeMass = 3.727417*CLHEP::GeV; << 82 particle(nullptr),
88 massFactor = 1000.*CLHEP::amu_c2/HeMass; << 83 fParticleChange(nullptr),
>> 84 currentMaterial(nullptr),
>> 85 iMolecula(-1),
>> 86 iASTAR(-1),
>> 87 isIon(false)
>> 88 {
>> 89 SetHighEnergyLimit(2.0*MeV);
>> 90
>> 91 HeMass = 3.727417*GeV;
>> 92 rateMassHe2p = HeMass/proton_mass_c2;
>> 93 lowestKinEnergy = 1.0*keV/rateMassHe2p;
>> 94 massFactor = 1000.*amu_c2/HeMass;
>> 95 theZieglerFactor = eV*cm2*1.0e-15;
>> 96 theElectron = G4Electron::Electron();
>> 97 corrFactor = 1.0;
>> 98 if(p) { SetParticle(p); }
>> 99 else { SetParticle(theElectron); }
89 } 100 }
90 101
91 //....oooOO0OOooo........oooOO0OOooo........oo 102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
92 103
93 G4BraggIonModel::~G4BraggIonModel() 104 G4BraggIonModel::~G4BraggIonModel()
94 { 105 {
95 if(isFirstAlpha) { << 106 if(IsMaster()) { delete fASTAR; fASTAR = nullptr; }
96 delete fASTAR; <<
97 fASTAR = nullptr; <<
98 } <<
99 } 107 }
100 108
101 //....oooOO0OOooo........oooOO0OOooo........oo 109 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
102 110
103 void G4BraggIonModel::Initialise(const G4Parti 111 void G4BraggIonModel::Initialise(const G4ParticleDefinition* p,
104 const G4DataV << 112 const G4DataVector&)
105 { 113 {
106 G4BraggModel::Initialise(p, ref); << 114 if(p != particle) { SetParticle(p); }
107 const G4String& pname = particle->GetParticl << 115
108 if(pname == "alpha") { isAlpha = true; } << 116 corrFactor = chargeSquare;
109 if(isAlpha && fASTAR == nullptr) { << 117
110 G4AutoLock l(&alphaMutex); << 118 // always false before the run
111 if(fASTAR == nullptr) { << 119 SetDeexcitationFlag(false);
112 isFirstAlpha = true; << 120
113 fASTAR = new G4ASTARStopping(); << 121 if(IsMaster()) {
114 } << 122 if(nullptr == fASTAR) { fASTAR = new G4ASTARStopping(); }
115 l.unlock(); << 123 if(particle->GetPDGMass() < GeV) { fASTAR->Initialise(); }
116 } 124 }
117 if(isFirstAlpha) { << 125
118 fASTAR->Initialise(); << 126 if(nullptr == fParticleChange) {
>> 127
>> 128 if(UseAngularGeneratorFlag() && !GetAngularDistribution()) {
>> 129 SetAngularDistribution(new G4DeltaAngle());
>> 130 }
>> 131 G4String pname = particle->GetParticleName();
>> 132 if(particle->GetParticleType() == "nucleus" &&
>> 133 pname != "deuteron" && pname != "triton" &&
>> 134 pname != "alpha+" && pname != "helium" &&
>> 135 pname != "hydrogen") { isIon = true; }
>> 136
>> 137 corr = G4LossTableManager::Instance()->EmCorrections();
>> 138
>> 139 fParticleChange = GetParticleChangeForLoss();
119 } 140 }
120 } 141 }
121 142
>> 143 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 144
>> 145 G4double G4BraggIonModel::MinEnergyCut(const G4ParticleDefinition*,
>> 146 const G4MaterialCutsCouple* couple)
>> 147 {
>> 148 return couple->GetMaterial()->GetIonisation()->GetMeanExcitationEnergy();
>> 149 }
122 150
123 //....oooOO0OOooo........oooOO0OOooo........oo 151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
124 152
125 G4double G4BraggIonModel::GetChargeSquareRatio 153 G4double G4BraggIonModel::GetChargeSquareRatio(const G4ParticleDefinition* p,
126 154 const G4Material* mat,
127 << 155 G4double kineticEnergy)
128 { 156 {
129 // this method is called only for ions, so n << 157 //G4cout<<"G4BraggIonModel::GetChargeSquareRatio e= "<<kineticEnergy<<G4endl;
130 if(isAlpha) { return 1.0; } << 158 // this method is called only for ions
131 return G4BraggModel::GetChargeSquareRatio(p, << 159 G4double q2 = corr->EffectiveChargeSquareRatio(p,mat,kineticEnergy);
>> 160 corrFactor = q2*corr->EffectiveChargeCorrection(p,mat,kineticEnergy);
>> 161 return corrFactor;
>> 162 }
>> 163
>> 164 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 165
>> 166 G4double G4BraggIonModel::GetParticleCharge(const G4ParticleDefinition* p,
>> 167 const G4Material* mat,
>> 168 G4double kineticEnergy)
>> 169 {
>> 170 //G4cout<<"G4BraggIonModel::GetParticleCharge e= "<<kineticEnergy <<
>> 171 // " q= " << corr->GetParticleCharge(p,mat,kineticEnergy) <<G4endl;
>> 172 // this method is called only for ions
>> 173 return corr->GetParticleCharge(p,mat,kineticEnergy);
>> 174 }
>> 175
>> 176 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 177
>> 178 G4double G4BraggIonModel::ComputeCrossSectionPerElectron(
>> 179 const G4ParticleDefinition* p,
>> 180 G4double kineticEnergy,
>> 181 G4double cutEnergy,
>> 182 G4double maxKinEnergy)
>> 183 {
>> 184 G4double cross = 0.0;
>> 185 G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
>> 186 G4double maxEnergy = std::min(tmax,maxKinEnergy);
>> 187 if(cutEnergy < tmax) {
>> 188
>> 189 G4double energy = kineticEnergy + mass;
>> 190 G4double energy2 = energy*energy;
>> 191 G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/energy2;
>> 192 cross = (maxEnergy - cutEnergy)/(cutEnergy*maxEnergy)
>> 193 - beta2*G4Log(maxEnergy/cutEnergy)/tmax;
>> 194
>> 195 if( 0.0 < spin ) { cross += 0.5*(maxEnergy - cutEnergy)/energy2; }
>> 196
>> 197 cross *= twopi_mc2_rcl2*chargeSquare/beta2;
>> 198 }
>> 199 // G4cout << "BR: e= " << kineticEnergy << " tmin= " << cutEnergy
>> 200 // << " tmax= " << tmax << " cross= " << cross << G4endl;
>> 201
>> 202 return cross;
132 } 203 }
133 204
134 //....oooOO0OOooo........oooOO0OOooo........oo 205 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
135 206
136 G4double G4BraggIonModel::ComputeCrossSectionP 207 G4double G4BraggIonModel::ComputeCrossSectionPerAtom(
137 con 208 const G4ParticleDefinition* p,
138 << 209 G4double kineticEnergy,
139 210 G4double Z, G4double,
140 211 G4double cutEnergy,
141 212 G4double maxEnergy)
142 { 213 {
143 G4double sigma = << 214 G4double cross = Z*ComputeCrossSectionPerElectron
144 Z*ComputeCrossSectionPerElectron(p,kinEner << 215 (p,kineticEnergy,cutEnergy,maxEnergy);
145 if(isAlpha) { << 216 return cross;
146 sigma *= (HeEffChargeSquare(Z, kinEnergy/C <<
147 } <<
148 return sigma; <<
149 } 217 }
150 218
151 //....oooOO0OOooo........oooOO0OOooo........oo 219 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
152 220
153 G4double G4BraggIonModel::CrossSectionPerVolum 221 G4double G4BraggIonModel::CrossSectionPerVolume(
154 con 222 const G4Material* material,
155 con 223 const G4ParticleDefinition* p,
156 << 224 G4double kineticEnergy,
157 225 G4double cutEnergy,
158 226 G4double maxEnergy)
159 { 227 {
160 G4double sigma = material->GetElectronDensit << 228 G4double eDensity = material->GetElectronDensity();
161 ComputeCrossSectionPerElectron(p,kinEnergy << 229 G4double cross = eDensity*ComputeCrossSectionPerElectron
162 if(isAlpha) { << 230 (p,kineticEnergy,cutEnergy,maxEnergy);
163 const G4double zeff = material->GetTotNbOf << 231 return cross;
164 material->GetTotNbOfAtomsPerVolume(); <<
165 sigma *= (HeEffChargeSquare(zeff, kinEnerg <<
166 } <<
167 return sigma; <<
168 } 232 }
169 233
170 //....oooOO0OOooo........oooOO0OOooo........oo 234 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
171 235
172 G4double G4BraggIonModel::ComputeDEDXPerVolume 236 G4double G4BraggIonModel::ComputeDEDXPerVolume(const G4Material* material,
173 237 const G4ParticleDefinition* p,
174 238 G4double kineticEnergy,
175 << 239 G4double cutEnergy)
176 { 240 {
177 const G4double tmax = MaxSecondaryEnergy(p, << 241 G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
178 const G4double tlim = lowestKinEnergy*massRa << 242 G4double tmin = min(cutEnergy, tmax);
179 const G4double tmin = std::max(std::min(cut, << 243 G4double tkin = kineticEnergy/massRate;
180 G4double dedx = 0.0; << 244 G4double dedx = 0.0;
181 245
182 if(kineticEnergy < tlim) { << 246 if(tkin < lowestKinEnergy) {
183 dedx = HeDEDX(material, tlim)*std::sqrt(ki << 247 dedx = DEDX(material, lowestKinEnergy)*sqrt(tkin/lowestKinEnergy);
184 } else { 248 } else {
185 dedx = HeDEDX(material, kineticEnergy); << 249 dedx = DEDX(material, tkin);
>> 250 }
186 251
187 if (tmin < tmax) { << 252 if (cutEnergy < tmax) {
188 const G4double tau = kineticEnergy/mass; << 253
189 const G4double x = tmin/tmax; << 254 G4double tau = kineticEnergy/mass;
190 << 255 G4double gam = tau + 1.0;
191 G4double del = << 256 G4double bg2 = tau * (tau+2.0);
192 (G4Log(x)*(tau + 1.)*(tau + 1.)/(tau * << 257 G4double beta2 = bg2/(gam*gam);
193 CLHEP::twopi_mc2_rcl2*material->GetElectronD << 258 G4double x = tmin/tmax;
194 if(isAlpha) { << 259
195 const G4double zeff = material->GetTotNbOfEl << 260 dedx += (G4Log(x) + (1.0 - x)*beta2) * twopi_mc2_rcl2
196 material->GetTotNbOfAtomsPerVolume(); << 261 * (material->GetElectronDensity())/beta2;
197 heChargeSquare = HeEffChargeSquare(zeff, kin <<
198 del *= heChargeSquare; <<
199 } <<
200 dedx += del; <<
201 } <<
202 } 262 }
>> 263
>> 264 // now compute the total ionization loss
>> 265
203 dedx = std::max(dedx, 0.0); 266 dedx = std::max(dedx, 0.0);
204 /* << 267 dedx *= chargeSquare;
205 G4cout << "BraggIon: " << material->GetNam << 268 /*
206 << " E(MeV)=" << kineticEnergy/MeV << 269 G4cout << "Bragg: tkin(MeV) = " << tkin/MeV << " dedx(MeVxcm^2/g) = "
207 << " Tmin(MeV)=" << tmin << " dedx( << 270 << dedx*gram/(MeV*cm2*material->GetDensity())
208 << dedx*gram/(MeV*cm2*material->Get << 271 << " q2 = " << chargeSquare << G4endl;
209 << " q2=" << chargeSquare << G4endl <<
210 */ 272 */
211 return dedx; 273 return dedx;
212 } 274 }
213 275
214 //....oooOO0OOooo........oooOO0OOooo........oo 276 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
215 277
216 void G4BraggIonModel::CorrectionsAlongStep(con 278 void G4BraggIonModel::CorrectionsAlongStep(const G4MaterialCutsCouple* couple,
217 con 279 const G4DynamicParticle* dp,
218 con << 280 G4double& eloss,
219 G4d << 281 G4double&,
>> 282 G4double /*length*/)
220 { 283 {
221 // no correction for alpha << 284 // this method is called only for ions
222 if(isAlpha) { return; } << 285 const G4ParticleDefinition* p = dp->GetDefinition();
>> 286 const G4Material* mat = couple->GetMaterial();
>> 287 G4double preKinEnergy = dp->GetKineticEnergy();
>> 288 G4double e = preKinEnergy - eloss*0.5;
>> 289 if(e < 0.0) { e = preKinEnergy*0.5; }
223 290
224 // no correction at a small step at the last << 291 G4double q2 = corr->EffectiveChargeSquareRatio(p,mat,e);
225 const G4double preKinEnergy = dp->GetKinetic << 292 GetModelOfFluctuations()->SetParticleAndCharge(p, q2);
226 if(eloss >= preKinEnergy || eloss < preKinEn << 293 G4double qfactor = q2*corr->EffectiveChargeCorrection(p,mat,e)/corrFactor;
>> 294 eloss *= qfactor;
227 295
228 // corrections only for ions << 296 //G4cout << "G4BraggIonModel::CorrectionsAlongStep e= " << e
229 const G4ParticleDefinition* p = dp->GetDefin << 297 // << " qfactor= " << qfactor << " " << p->GetParticleName() <<G4endl;
230 if(p != particle) { SetParticle(p); } << 298 }
231 299
232 // effective energy and charge at a step << 300 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
233 const G4Material* mat = couple->GetMaterial( << 301
234 const G4double e = std::max(preKinEnergy - e << 302 void G4BraggIonModel::SampleSecondaries(std::vector<G4DynamicParticle*>* vdp,
235 const G4double q20 = corr->EffectiveChargeSq << 303 const G4MaterialCutsCouple* couple,
236 const G4double q2 = corr->EffectiveChargeSqu << 304 const G4DynamicParticle* dp,
237 const G4double qfactor = q2/q20; << 305 G4double xmin,
238 /* << 306 G4double maxEnergy)
239 G4cout << "G4BraggIonModel::CorrectionsAlo << 307 {
240 << preKinEnergy << " Eeff(MeV)=" << e << 308 G4double tmax = MaxSecondaryKinEnergy(dp);
241 << " eloss=" << eloss << " elossnew=" << e << 309 G4double xmax = std::min(tmax, maxEnergy);
242 << " qfactor=" << qfactor << " Qpre=" << q << 310 if(xmin >= xmax) { return; }
243 << p->GetParticleName() <<G4endl; << 311
244 */ << 312 G4double kineticEnergy = dp->GetKineticEnergy();
245 eloss *= qfactor; << 313 G4double energy = kineticEnergy + mass;
>> 314 G4double energy2 = energy*energy;
>> 315 G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/energy2;
>> 316 G4double grej = 1.0;
>> 317 G4double deltaKinEnergy, f;
>> 318
>> 319 CLHEP::HepRandomEngine* rndmEngineMod = G4Random::getTheEngine();
>> 320 G4double rndm[2];
>> 321
>> 322 // sampling follows ...
>> 323 do {
>> 324 rndmEngineMod->flatArray(2, rndm);
>> 325 deltaKinEnergy = xmin*xmax/(xmin*(1.0 - rndm[0]) + xmax*rndm[0]);
>> 326
>> 327 f = 1.0 - beta2*deltaKinEnergy/tmax;
>> 328
>> 329 if(f > grej) {
>> 330 G4cout << "G4BraggIonModel::SampleSecondary Warning! "
>> 331 << "Majorant " << grej << " < "
>> 332 << f << " for e= " << deltaKinEnergy
>> 333 << G4endl;
>> 334 }
>> 335
>> 336 // Loop checking, 03-Aug-2015, Vladimir Ivanchenko
>> 337 } while( grej*rndm[1] >= f );
>> 338
>> 339 G4ThreeVector deltaDirection;
>> 340
>> 341 if(UseAngularGeneratorFlag()) {
>> 342 const G4Material* mat = couple->GetMaterial();
>> 343 G4int Z = SelectRandomAtomNumber(mat);
>> 344
>> 345 deltaDirection =
>> 346 GetAngularDistribution()->SampleDirection(dp, deltaKinEnergy, Z, mat);
>> 347
>> 348 } else {
>> 349
>> 350 G4double deltaMomentum =
>> 351 sqrt(deltaKinEnergy * (deltaKinEnergy + 2.0*electron_mass_c2));
>> 352 G4double cost = deltaKinEnergy * (energy + electron_mass_c2) /
>> 353 (deltaMomentum * dp->GetTotalMomentum());
>> 354 if(cost > 1.0) { cost = 1.0; }
>> 355 G4double sint = sqrt((1.0 - cost)*(1.0 + cost));
>> 356
>> 357 G4double phi = twopi*rndmEngineMod->flat();
>> 358
>> 359 deltaDirection.set(sint*cos(phi),sint*sin(phi), cost) ;
>> 360 deltaDirection.rotateUz(dp->GetMomentumDirection());
>> 361 }
>> 362
>> 363 // create G4DynamicParticle object for delta ray
>> 364 G4DynamicParticle* delta =
>> 365 new G4DynamicParticle(theElectron,deltaDirection,deltaKinEnergy);
>> 366
>> 367 vdp->push_back(delta);
>> 368
>> 369 // Change kinematics of primary particle
>> 370 kineticEnergy -= deltaKinEnergy;
>> 371 G4ThreeVector finalP = dp->GetMomentum() - delta->GetMomentum();
>> 372 finalP = finalP.unit();
>> 373
>> 374 fParticleChange->SetProposedKineticEnergy(kineticEnergy);
>> 375 fParticleChange->SetProposedMomentumDirection(finalP);
246 } 376 }
247 377
248 //....oooOO0OOooo........oooOO0OOooo........oo 378 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
249 379
250 G4int G4BraggIonModel::HasMaterialForHe(const << 380 G4double G4BraggIonModel::MaxSecondaryEnergy(const G4ParticleDefinition* pd,
>> 381 G4double kinEnergy)
251 { 382 {
252 const G4String& chFormula = mat->GetChemical << 383 if(pd != particle) { SetParticle(pd); }
253 if(chFormula.empty()) { return -1; } << 384 G4double tau = kinEnergy/mass;
>> 385 G4double tmax = 2.0*electron_mass_c2*tau*(tau + 2.) /
>> 386 (1. + 2.0*(tau + 1.)*ratio + ratio*ratio);
>> 387 return tmax;
>> 388 }
>> 389
>> 390 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 391
>> 392 G4bool G4BraggIonModel::HasMaterial(const G4Material*)
>> 393 {
>> 394 return false;
>> 395 /*
>> 396 G4String chFormula = material->GetChemicalFormula();
>> 397 if("" == chFormula) { return false; }
254 398
255 // ICRU Report N49, 1993. Ziegler model for 399 // ICRU Report N49, 1993. Ziegler model for He.
256 400
257 static const G4int numberOfMolecula = 11; << 401 static const size_t numberOfMolecula = 11;
258 static const G4String molName[numberOfMolecu 402 static const G4String molName[numberOfMolecula] = {
259 "CaF_2", "Cellulose_Nitrate", "LiF", "Po 403 "CaF_2", "Cellulose_Nitrate", "LiF", "Policarbonate",
260 "(C_2H_4)_N-Polyethylene", "(C_2H_4)_N-Po 404 "(C_2H_4)_N-Polyethylene", "(C_2H_4)_N-Polymethly_Methacralate",
261 "Polysterene", "SiO_2", "NaI", "H_2O", 405 "Polysterene", "SiO_2", "NaI", "H_2O",
262 "Graphite" }; 406 "Graphite" };
263 407
264 // Search for the material in the table 408 // Search for the material in the table
265 for (G4int i=0; i<numberOfMolecula; ++i) { << 409 for (size_t i=0; i<numberOfMolecula; ++i) {
266 if (chFormula == molName[i]) { << 410 if (chFormula == molName[i]) {
267 return i; << 411 iASTAR = fASTAR->GetIndex(matName[i]);
>> 412 break;
268 } 413 }
269 } 414 }
270 return -1; << 415 return (iASTAR >= 0);
>> 416 */
271 } 417 }
272 418
273 //....oooOO0OOooo........oooOO0OOooo........oo 419 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
274 420
275 G4double G4BraggIonModel::HeStoppingPower(cons << 421 G4double G4BraggIonModel::StoppingPower(const G4Material* material,
>> 422 G4double kineticEnergy)
276 { 423 {
277 G4double ionloss = 0.0; << 424 G4double ionloss = 0.0 ;
>> 425
278 if (iMolecula >= 0) { 426 if (iMolecula >= 0) {
279 427
280 // The data and the fit from: 428 // The data and the fit from:
281 // ICRU Report N49, 1993. Ziegler's model 429 // ICRU Report N49, 1993. Ziegler's model for alpha
282 // He energy in internal units of parametr 430 // He energy in internal units of parametrisation formula (MeV)
283 // Input scaled energy of a proton or Gene << 431
284 G4double T = kineticEnergy/(massRate*CLHEP << 432 G4double T = kineticEnergy*rateMassHe2p/MeV ;
285 433
286 static const G4float a[11][5] = { 434 static const G4float a[11][5] = {
287 {9.43672f, 0.54398f, 84.341f, 1.3705f, 435 {9.43672f, 0.54398f, 84.341f, 1.3705f, 57.422f},
288 {67.1503f, 0.41409f, 404.512f, 148.97f, 436 {67.1503f, 0.41409f, 404.512f, 148.97f, 20.99f},
289 {5.11203f, 0.453f, 36.718f, 50.6f, 437 {5.11203f, 0.453f, 36.718f, 50.6f, 28.058f},
290 {61.793f, 0.48445f, 361.537f, 57.889f, 438 {61.793f, 0.48445f, 361.537f, 57.889f, 50.674f},
291 {7.83464f, 0.49804f, 160.452f, 3.192f, 439 {7.83464f, 0.49804f, 160.452f, 3.192f, 0.71922f},
292 {19.729f, 0.52153f, 162.341f, 58.35f, 440 {19.729f, 0.52153f, 162.341f, 58.35f, 25.668f},
293 {26.4648f, 0.50112f, 188.913f, 30.079f, 441 {26.4648f, 0.50112f, 188.913f, 30.079f, 16.509f},
294 {7.8655f, 0.5205f, 63.96f, 51.32f, 442 {7.8655f, 0.5205f, 63.96f, 51.32f, 67.775f},
295 {8.8965f, 0.5148f, 339.36f, 1.7205f, 443 {8.8965f, 0.5148f, 339.36f, 1.7205f, 0.70423f},
296 {2.959f, 0.53255f, 34.247f, 60.655f, 444 {2.959f, 0.53255f, 34.247f, 60.655f, 15.153f},
297 {3.80133f, 0.41590f, 12.9966f, 117.83f, 445 {3.80133f, 0.41590f, 12.9966f, 117.83f, 242.28f} };
298 446
299 static const G4double atomicWeight[11] = { 447 static const G4double atomicWeight[11] = {
300 101.96128f, 44.0098f, 16.0426f, 28.0536 448 101.96128f, 44.0098f, 16.0426f, 28.0536f, 42.0804f,
301 104.1512f, 44.665f, 60.0843f, 18.0152 449 104.1512f, 44.665f, 60.0843f, 18.0152f, 18.0152f, 12.0f};
302 450
303 const G4int i = iMolecula; << 451 G4int i = iMolecula;
304 452
305 G4double slow = (G4double)(a[i][0]); 453 G4double slow = (G4double)(a[i][0]);
306 454
307 G4double x1 = (G4double)(a[i][1]); 455 G4double x1 = (G4double)(a[i][1]);
308 G4double x2 = (G4double)(a[i][2]); 456 G4double x2 = (G4double)(a[i][2]);
309 G4double x3 = (G4double)(a[i][3]); 457 G4double x3 = (G4double)(a[i][3]);
310 G4double x4 = (G4double)(a[i][4]); 458 G4double x4 = (G4double)(a[i][4]);
311 459
312 // Free electron gas model 460 // Free electron gas model
313 if ( T < 0.001 ) { 461 if ( T < 0.001 ) {
314 G4double shigh = G4Log( 1.0 + x3*1000.0 462 G4double shigh = G4Log( 1.0 + x3*1000.0 + x4*0.001 ) *x2*1000.0;
315 ionloss = slow*shigh / (slow + shigh) ; 463 ionloss = slow*shigh / (slow + shigh) ;
316 ionloss *= std::sqrt(T*1000.0) ; << 464 ionloss *= sqrt(T*1000.0) ;
317 465
318 // Main parametrisation 466 // Main parametrisation
319 } else { 467 } else {
320 slow *= G4Exp(G4Log(T*1000.0)*x1) ; 468 slow *= G4Exp(G4Log(T*1000.0)*x1) ;
321 G4double shigh = G4Log( 1.0 + x3/T + x4* 469 G4double shigh = G4Log( 1.0 + x3/T + x4*T ) * x2/T ;
322 ionloss = slow*shigh / (slow + shigh) ; 470 ionloss = slow*shigh / (slow + shigh) ;
323 /* 471 /*
324 G4cout << "## " << i << ". T= " << T 472 G4cout << "## " << i << ". T= " << T << " slow= " << slow
325 << " a0= " << a[i][0] << " a1= " << a 473 << " a0= " << a[i][0] << " a1= " << a[i][1]
326 << " shigh= " << shigh 474 << " shigh= " << shigh
327 << " dedx= " << ionloss << " q^2= " < 475 << " dedx= " << ionloss << " q^2= " << HeEffChargeSquare(z, T*MeV)
328 << G4endl; 476 << G4endl;
329 */ 477 */
330 } 478 }
331 ionloss = std::max(ionloss, 0.0) * atomicW << 479 ionloss = std::max(ionloss, 0.0);
>> 480
>> 481 // He effective charge
>> 482 G4double aa = (G4double)atomicWeight[iMolecula];
>> 483 ionloss /= (HeEffChargeSquare(0.5*aa, T)*aa);
>> 484
>> 485 // pure material (normally not the case for this function)
>> 486 } else if(1 == (material->GetNumberOfElements())) {
>> 487 G4double z = material->GetZ() ;
>> 488 ionloss = ElectronicStoppingPower( z, kineticEnergy ) ;
332 } 489 }
>> 490
333 return ionloss; 491 return ionloss;
334 } 492 }
335 493
336 //....oooOO0OOooo........oooOO0OOooo........oo 494 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
337 495
338 G4double G4BraggIonModel::HeElectronicStopping << 496 G4double G4BraggIonModel::ElectronicStoppingPower(G4double z,
339 const G4double kinet << 497 G4double kineticEnergy) const
340 { 498 {
341 G4double ionloss ; 499 G4double ionloss ;
342 G4int i = std::min(z-1, 91); // index of at << 500 G4int i = G4lrint(z)-1 ; // index of atom
343 //G4cout << "ElectronicStoppingPower z=" << << 501 if(i < 0) i = 0 ;
344 // << " E=" << kineticEnergy << G4endl; << 502 if(i > 91) i = 91 ;
>> 503
345 // The data and the fit from: 504 // The data and the fit from:
346 // ICRU Report 49, 1993. Ziegler's type of p 505 // ICRU Report 49, 1993. Ziegler's type of parametrisations.
347 // Proton kinetic energy for parametrisation 506 // Proton kinetic energy for parametrisation (keV/amu)
>> 507
348 // He energy in internal units of parametris 508 // He energy in internal units of parametrisation formula (MeV)
349 //G4double T = kineticEnergy*rateMassHe2p/CL << 509 G4double T = kineticEnergy*rateMassHe2p/MeV ;
350 G4double T = kineticEnergy/CLHEP::MeV; <<
351 510
352 static const G4float a[92][5] = { 511 static const G4float a[92][5] = {
353 { 0.35485f, 0.6456f, 6.01525f, 20.8933f, 512 { 0.35485f, 0.6456f, 6.01525f, 20.8933f, 4.3515f
354 },{ 0.58f, 0.59f, 6.3f, 130.0f, 513 },{ 0.58f, 0.59f, 6.3f, 130.0f, 44.07f
355 },{ 1.42f, 0.49f, 12.25f, 32.0f, 514 },{ 1.42f, 0.49f, 12.25f, 32.0f, 9.161f
356 },{ 2.206f, 0.51f, 15.32f, 0.25f, 515 },{ 2.206f, 0.51f, 15.32f, 0.25f, 8.995f //Be Ziegler77
357 // },{ 2.1895f, 0.47183,7.2362f, 134 516 // },{ 2.1895f, 0.47183,7.2362f, 134.30f, 197.96f //Be from ICRU
358 },{ 3.691f, 0.4128f, 18.48f, 50.72f, 517 },{ 3.691f, 0.4128f, 18.48f, 50.72f, 9.0f
359 },{ 3.83523f, 0.42993f,12.6125f, 227.41f, 518 },{ 3.83523f, 0.42993f,12.6125f, 227.41f, 188.97f
360 // },{ 1.9259f, 0.5550f, 27.15125f, 26 519 // },{ 1.9259f, 0.5550f, 27.15125f, 26.0665f, 6.2768f //too many digits
361 },{ 1.9259f, 0.5550f, 27.1513f, 26.0665f, 520 },{ 1.9259f, 0.5550f, 27.1513f, 26.0665f, 6.2768f
362 },{ 2.81015f, 0.4759f, 50.0253f, 10.556f, 521 },{ 2.81015f, 0.4759f, 50.0253f, 10.556f, 1.0382f
363 },{ 1.533f, 0.531f, 40.44f, 18.41f, 522 },{ 1.533f, 0.531f, 40.44f, 18.41f, 2.718f
364 },{ 2.303f, 0.4861f, 37.01f, 37.96f, 523 },{ 2.303f, 0.4861f, 37.01f, 37.96f, 5.092f
365 // Z= 11-20 524 // Z= 11-20
366 },{ 9.894f, 0.3081f, 23.65f, 0.384f, 525 },{ 9.894f, 0.3081f, 23.65f, 0.384f, 92.93f
367 },{ 4.3f, 0.47f, 34.3f, 3.3f, 526 },{ 4.3f, 0.47f, 34.3f, 3.3f, 12.74f
368 },{ 2.5f, 0.625f, 45.7f, 0.1f, 527 },{ 2.5f, 0.625f, 45.7f, 0.1f, 4.359f
369 },{ 2.1f, 0.65f, 49.34f, 1.788f, 528 },{ 2.1f, 0.65f, 49.34f, 1.788f, 4.133f
370 },{ 1.729f, 0.6562f, 53.41f, 2.405f, 529 },{ 1.729f, 0.6562f, 53.41f, 2.405f, 3.845f
371 },{ 1.402f, 0.6791f, 58.98f, 3.528f, 530 },{ 1.402f, 0.6791f, 58.98f, 3.528f, 3.211f
372 },{ 1.117f, 0.7044f, 69.69f, 3.705f, 531 },{ 1.117f, 0.7044f, 69.69f, 3.705f, 2.156f
373 },{ 2.291f, 0.6284f, 73.88f, 4.478f, 532 },{ 2.291f, 0.6284f, 73.88f, 4.478f, 2.066f
374 },{ 8.554f, 0.3817f, 83.61f, 11.84f, 533 },{ 8.554f, 0.3817f, 83.61f, 11.84f, 1.875f
375 },{ 6.297f, 0.4622f, 65.39f, 10.14f, 534 },{ 6.297f, 0.4622f, 65.39f, 10.14f, 5.036f
376 // Z= 21-30 535 // Z= 21-30
377 },{ 5.307f, 0.4918f, 61.74f, 12.4f, 536 },{ 5.307f, 0.4918f, 61.74f, 12.4f, 6.665f
378 },{ 4.71f, 0.5087f, 65.28f, 8.806f, 537 },{ 4.71f, 0.5087f, 65.28f, 8.806f, 5.948f
379 },{ 6.151f, 0.4524f, 83.0f, 18.31f, 538 },{ 6.151f, 0.4524f, 83.0f, 18.31f, 2.71f
380 },{ 6.57f, 0.4322f, 84.76f, 15.53f, 539 },{ 6.57f, 0.4322f, 84.76f, 15.53f, 2.779f
381 },{ 5.738f, 0.4492f, 84.6f, 14.18f, 540 },{ 5.738f, 0.4492f, 84.6f, 14.18f, 3.101f
382 },{ 5.013f, 0.4707f, 85.8f, 16.55f, 541 },{ 5.013f, 0.4707f, 85.8f, 16.55f, 3.211f
383 },{ 4.32f, 0.4947f, 76.14f, 10.85f, 542 },{ 4.32f, 0.4947f, 76.14f, 10.85f, 5.441f
384 },{ 4.652f, 0.4571f, 80.73f, 22.0f, 543 },{ 4.652f, 0.4571f, 80.73f, 22.0f, 4.952f
385 },{ 3.114f, 0.5236f, 76.67f, 7.62f, 544 },{ 3.114f, 0.5236f, 76.67f, 7.62f, 6.385f
386 },{ 3.114f, 0.5236f, 76.67f, 7.62f, 545 },{ 3.114f, 0.5236f, 76.67f, 7.62f, 7.502f
387 // Z= 31-40 546 // Z= 31-40
388 },{ 3.114f, 0.5236f, 76.67f, 7.62f, 547 },{ 3.114f, 0.5236f, 76.67f, 7.62f, 8.514f
389 },{ 5.746f, 0.4662f, 79.24f, 1.185f, 548 },{ 5.746f, 0.4662f, 79.24f, 1.185f, 7.993f
390 },{ 2.792f, 0.6346f, 106.1f, 0.2986f, 549 },{ 2.792f, 0.6346f, 106.1f, 0.2986f, 2.331f
391 },{ 4.667f, 0.5095f, 124.3f, 2.102f, 550 },{ 4.667f, 0.5095f, 124.3f, 2.102f, 1.667f
392 },{ 2.44f, 0.6346f, 105.0f, 0.83f, 551 },{ 2.44f, 0.6346f, 105.0f, 0.83f, 2.851f
393 },{ 1.413f, 0.7377f, 147.9f, 1.466f, 552 },{ 1.413f, 0.7377f, 147.9f, 1.466f, 1.016f
394 },{ 11.72f, 0.3826f, 102.8f, 9.231f, 553 },{ 11.72f, 0.3826f, 102.8f, 9.231f, 4.371f
395 },{ 7.126f, 0.4804f, 119.3f, 5.784f, 554 },{ 7.126f, 0.4804f, 119.3f, 5.784f, 2.454f
396 },{ 11.61f, 0.3955f, 146.7f, 7.031f, 555 },{ 11.61f, 0.3955f, 146.7f, 7.031f, 1.423f
397 },{ 10.99f, 0.41f, 163.9f, 7.1f, 556 },{ 10.99f, 0.41f, 163.9f, 7.1f, 1.052f
398 // Z= 41-50 557 // Z= 41-50
399 },{ 9.241f, 0.4275f, 163.1f, 7.954f, 558 },{ 9.241f, 0.4275f, 163.1f, 7.954f, 1.102f
400 },{ 9.276f, 0.418f, 157.1f, 8.038f, 559 },{ 9.276f, 0.418f, 157.1f, 8.038f, 1.29f
401 },{ 3.999f, 0.6152f, 97.6f, 1.297f, 560 },{ 3.999f, 0.6152f, 97.6f, 1.297f, 5.792f
402 },{ 4.306f, 0.5658f, 97.99f, 5.514f, 561 },{ 4.306f, 0.5658f, 97.99f, 5.514f, 5.754f
403 },{ 3.615f, 0.6197f, 86.26f, 0.333f, 562 },{ 3.615f, 0.6197f, 86.26f, 0.333f, 8.689f
404 },{ 5.8f, 0.49f, 147.2f, 6.903f, 563 },{ 5.8f, 0.49f, 147.2f, 6.903f, 1.289f
405 },{ 5.6f, 0.49f, 130.0f, 10.0f, 564 },{ 5.6f, 0.49f, 130.0f, 10.0f, 2.844f
406 },{ 3.55f, 0.6068f, 124.7f, 1.112f, 565 },{ 3.55f, 0.6068f, 124.7f, 1.112f, 3.119f
407 },{ 3.6f, 0.62f, 105.8f, 0.1692f, 566 },{ 3.6f, 0.62f, 105.8f, 0.1692f, 6.026f
408 },{ 5.4f, 0.53f, 103.1f, 3.931f, 567 },{ 5.4f, 0.53f, 103.1f, 3.931f, 7.767f
409 // Z= 51-60 568 // Z= 51-60
410 },{ 3.97f, 0.6459f, 131.8f, 0.2233f, 569 },{ 3.97f, 0.6459f, 131.8f, 0.2233f, 2.723f
411 },{ 3.65f, 0.64f, 126.8f, 0.6834f, 570 },{ 3.65f, 0.64f, 126.8f, 0.6834f, 3.411f
412 },{ 3.118f, 0.6519f, 164.9f, 1.208f, 571 },{ 3.118f, 0.6519f, 164.9f, 1.208f, 1.51f
413 },{ 3.949f, 0.6209f, 200.5f, 1.878f, 572 },{ 3.949f, 0.6209f, 200.5f, 1.878f, 0.9126f
414 },{ 14.4f, 0.3923f, 152.5f, 8.354f, 573 },{ 14.4f, 0.3923f, 152.5f, 8.354f, 2.597f
415 },{ 10.99f, 0.4599f, 138.4f, 4.811f, 574 },{ 10.99f, 0.4599f, 138.4f, 4.811f, 3.726f
416 },{ 16.6f, 0.3773f, 224.1f, 6.28f, 575 },{ 16.6f, 0.3773f, 224.1f, 6.28f, 0.9121f
417 },{ 10.54f, 0.4533f, 159.3f, 4.832f, 576 },{ 10.54f, 0.4533f, 159.3f, 4.832f, 2.529f
418 },{ 10.33f, 0.4502f, 162.0f, 5.132f, 577 },{ 10.33f, 0.4502f, 162.0f, 5.132f, 2.444f
419 },{ 10.15f, 0.4471f, 165.6f, 5.378f, 578 },{ 10.15f, 0.4471f, 165.6f, 5.378f, 2.328f
420 // Z= 61-70 579 // Z= 61-70
421 },{ 9.976f, 0.4439f, 168.0f, 5.721f, 580 },{ 9.976f, 0.4439f, 168.0f, 5.721f, 2.258f
422 },{ 9.804f, 0.4408f, 176.2f, 5.675f, 581 },{ 9.804f, 0.4408f, 176.2f, 5.675f, 1.997f
423 },{ 14.22f, 0.363f, 228.4f, 7.024f, 582 },{ 14.22f, 0.363f, 228.4f, 7.024f, 1.016f
424 },{ 9.952f, 0.4318f, 233.5f, 5.065f, 583 },{ 9.952f, 0.4318f, 233.5f, 5.065f, 0.9244f
425 },{ 9.272f, 0.4345f, 210.0f, 4.911f, 584 },{ 9.272f, 0.4345f, 210.0f, 4.911f, 1.258f
426 },{ 10.13f, 0.4146f, 225.7f, 5.525f, 585 },{ 10.13f, 0.4146f, 225.7f, 5.525f, 1.055f
427 },{ 8.949f, 0.4304f, 213.3f, 5.071f, 586 },{ 8.949f, 0.4304f, 213.3f, 5.071f, 1.221f
428 },{ 11.94f, 0.3783f, 247.2f, 6.655f, 587 },{ 11.94f, 0.3783f, 247.2f, 6.655f, 0.849f
429 },{ 8.472f, 0.4405f, 195.5f, 4.051f, 588 },{ 8.472f, 0.4405f, 195.5f, 4.051f, 1.604f
430 },{ 8.301f, 0.4399f, 203.7f, 3.667f, 589 },{ 8.301f, 0.4399f, 203.7f, 3.667f, 1.459f
431 // Z= 71-80 590 // Z= 71-80
432 },{ 6.567f, 0.4858f, 193.0f, 2.65f, 591 },{ 6.567f, 0.4858f, 193.0f, 2.65f, 1.66f
433 },{ 5.951f, 0.5016f, 196.1f, 2.662f, 592 },{ 5.951f, 0.5016f, 196.1f, 2.662f, 1.589f
434 },{ 7.495f, 0.4523f, 251.4f, 3.433f, 593 },{ 7.495f, 0.4523f, 251.4f, 3.433f, 0.8619f
435 },{ 6.335f, 0.4825f, 255.1f, 2.834f, 594 },{ 6.335f, 0.4825f, 255.1f, 2.834f, 0.8228f
436 },{ 4.314f, 0.5558f, 214.8f, 2.354f, 595 },{ 4.314f, 0.5558f, 214.8f, 2.354f, 1.263f
437 },{ 4.02f, 0.5681f, 219.9f, 2.402f, 596 },{ 4.02f, 0.5681f, 219.9f, 2.402f, 1.191f
438 },{ 3.836f, 0.5765f, 210.2f, 2.742f, 597 },{ 3.836f, 0.5765f, 210.2f, 2.742f, 1.305f
439 },{ 4.68f, 0.5247f, 244.7f, 2.749f, 598 },{ 4.68f, 0.5247f, 244.7f, 2.749f, 0.8962f
440 },{ 2.892f, 0.6204f, 208.6f, 2.415f, 599 },{ 2.892f, 0.6204f, 208.6f, 2.415f, 1.416f //Au Z77
441 // },{ 3.223f, 0.5883f, 232.7f, 2.9 600 // },{ 3.223f, 0.5883f, 232.7f, 2.954f, 1.05 //Au ICRU
442 },{ 2.892f, 0.6204f, 208.6f, 2.415f, 601 },{ 2.892f, 0.6204f, 208.6f, 2.415f, 1.416f
443 // Z= 81-90 602 // Z= 81-90
444 },{ 4.728f, 0.5522f, 217.0f, 3.091f, 603 },{ 4.728f, 0.5522f, 217.0f, 3.091f, 1.386f
445 },{ 6.18f, 0.52f, 170.0f, 4.0f, 604 },{ 6.18f, 0.52f, 170.0f, 4.0f, 3.224f
446 },{ 9.0f, 0.47f, 198.0f, 3.8f, 605 },{ 9.0f, 0.47f, 198.0f, 3.8f, 2.032f
447 },{ 2.324f, 0.6997f, 216.0f, 1.599f, 606 },{ 2.324f, 0.6997f, 216.0f, 1.599f, 1.399f
448 },{ 1.961f, 0.7286f, 223.0f, 1.621f, 607 },{ 1.961f, 0.7286f, 223.0f, 1.621f, 1.296f
449 },{ 1.75f, 0.7427f, 350.1f, 0.9789f, 608 },{ 1.75f, 0.7427f, 350.1f, 0.9789f, 0.5507f
450 },{ 10.31f, 0.4613f, 261.2f, 4.738f, 609 },{ 10.31f, 0.4613f, 261.2f, 4.738f, 0.9899f
451 },{ 7.962f, 0.519f, 235.7f, 4.347f, 610 },{ 7.962f, 0.519f, 235.7f, 4.347f, 1.313f
452 },{ 6.227f, 0.5645f, 231.9f, 3.961f, 611 },{ 6.227f, 0.5645f, 231.9f, 3.961f, 1.379f
453 },{ 5.246f, 0.5947f, 228.6f, 4.027f, 612 },{ 5.246f, 0.5947f, 228.6f, 4.027f, 1.432f
454 // Z= 91-92 613 // Z= 91-92
455 },{ 5.408f, 0.5811f, 235.7f, 3.961f, 614 },{ 5.408f, 0.5811f, 235.7f, 3.961f, 1.358f
456 },{ 5.218f, 0.5828f, 245.0f, 3.838f, 615 },{ 5.218f, 0.5828f, 245.0f, 3.838f, 1.25f}
457 }; 616 };
458 617
459 G4double slow = (G4double)(a[i][0]); 618 G4double slow = (G4double)(a[i][0]);
460 619
461 G4double x1 = (G4double)(a[i][1]); 620 G4double x1 = (G4double)(a[i][1]);
462 G4double x2 = (G4double)(a[i][2]); 621 G4double x2 = (G4double)(a[i][2]);
463 G4double x3 = (G4double)(a[i][3]); 622 G4double x3 = (G4double)(a[i][3]);
464 G4double x4 = (G4double)(a[i][4]); 623 G4double x4 = (G4double)(a[i][4]);
465 624
466 // Free electron gas model 625 // Free electron gas model
467 if ( T < 0.001 ) { 626 if ( T < 0.001 ) {
468 G4double shigh = G4Log( 1.0 + x3*1000.0 + 627 G4double shigh = G4Log( 1.0 + x3*1000.0 + x4*0.001 )* x2*1000.0;
469 ionloss = slow*shigh*std::sqrt(T*1000.0) << 628 ionloss = slow*shigh*sqrt(T*1000.0) / (slow + shigh) ;
470 629
471 // Main parametrisation 630 // Main parametrisation
472 } else { 631 } else {
473 slow *= G4Exp(G4Log(T*1000.0)*x1); 632 slow *= G4Exp(G4Log(T*1000.0)*x1);
474 G4double shigh = G4Log( 1.0 + x3/T + x4*T 633 G4double shigh = G4Log( 1.0 + x3/T + x4*T ) * x2/T;
475 ionloss = slow*shigh / (slow + shigh) ; 634 ionloss = slow*shigh / (slow + shigh) ;
476 /* 635 /*
477 G4cout << "## " << i << ". T= " << T << " 636 G4cout << "## " << i << ". T= " << T << " slow= " << slow
478 << " a0= " << a[i][0] << " a1= " << 637 << " a0= " << a[i][0] << " a1= " << a[i][1]
479 << " shigh= " << shigh 638 << " shigh= " << shigh
480 << " dedx= " << ionloss << " q^2= " << 639 << " dedx= " << ionloss << " q^2= " << HeEffChargeSquare(z, T*MeV)
481 << G4endl; 640 << G4endl;
482 */ 641 */
483 } 642 }
484 ionloss = std::max(ionloss, 0.0); 643 ionloss = std::max(ionloss, 0.0);
>> 644
>> 645 // He effective charge
>> 646 ionloss /= HeEffChargeSquare(z, T);
>> 647
485 return ionloss; 648 return ionloss;
486 } 649 }
487 650
488 //....oooOO0OOooo........oooOO0OOooo........oo 651 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
489 652
490 G4double G4BraggIonModel::HeDEDX(const G4Mater << 653 G4double G4BraggIonModel::DEDX(const G4Material* material,
491 const G4double << 654 G4double kineticEnergy)
492 { 655 {
493 // aEnergy is energy of alpha <<
494 G4double eloss = 0.0; 656 G4double eloss = 0.0;
495 // check DB 657 // check DB
496 if(material != currentMaterial) { 658 if(material != currentMaterial) {
497 currentMaterial = material; 659 currentMaterial = material;
498 baseMaterial = material->GetBaseMaterial() <<
499 ? material->GetBaseMaterial() : material <<
500 iPSTAR = -1; <<
501 iASTAR = -1; 660 iASTAR = -1;
502 iMolecula = -1; 661 iMolecula = -1;
503 iICRU90 = (nullptr != fICRU90) ? fICRU90-> << 662 if( !HasMaterial(material) ) { iASTAR = fASTAR->GetIndex(material); }
504 <<
505 if(iICRU90 < 0) { <<
506 if(isAlpha) { <<
507 iASTAR = fASTAR->GetIndex(baseMaterial); <<
508 if(iASTAR < 0) { iMolecula = HasMaterialForH <<
509 } else { <<
510 iPSTAR = fPSTAR->GetIndex(baseMaterial); <<
511 } <<
512 } <<
513 /* <<
514 G4cout << "%%% " <<material->GetName() << <<
515 << iMolecula << " iASTAR= " << iAS <<
516 << " iICRU90= " << iICRU90<< G4end <<
517 */ <<
518 } <<
519 // ICRU90 <<
520 if(iICRU90 >= 0) { <<
521 eloss = (isAlpha) <<
522 ? fICRU90->GetElectronicDEDXforAlpha(iIC <<
523 : fICRU90->GetElectronicDEDXforProton(iI <<
524 if(eloss > 0.0) { return eloss*material->G <<
525 } <<
526 // PSTAR parameterisation <<
527 if( iPSTAR >= 0 ) { <<
528 return fPSTAR->GetElectronicDEDX(iPSTAR, a <<
529 *material->GetDensity(); <<
530 } <<
531 // ASTAR <<
532 if( iASTAR >= 0 ) { <<
533 eloss = fASTAR->GetElectronicDEDX(iASTAR, <<
534 /* <<
535 G4cout << "ASTAR: E=" << aEnergy <<
536 << " dedx=" << eloss*material->GetDensity <<
537 << " " << particle->GetParticleName() << <<
538 */ <<
539 if(eloss > 0.0) { return eloss*material->G <<
540 } 663 }
541 664
542 const std::size_t numberOfElements = materia << 665 const G4int numberOfElements = material->GetNumberOfElements();
543 const G4ElementVector* theElmVector = materi <<
544 const G4double* theAtomicNumDensityVector = 666 const G4double* theAtomicNumDensityVector =
545 material->GetAtomicNumDensityVector(); << 667 material->GetAtomicNumDensityVector();
>> 668
>> 669 if( iASTAR >= 0 ) {
>> 670 G4double T = kineticEnergy*rateMassHe2p;
>> 671 G4int zeff = G4lrint(material->GetTotNbOfElectPerVolume()/
>> 672 material->GetTotNbOfAtomsPerVolume());
>> 673 return fASTAR->GetElectronicDEDX(iASTAR, T)*material->GetDensity()/
>> 674 HeEffChargeSquare(zeff, T/MeV);
>> 675
>> 676 } else if(iMolecula >= 0) {
546 677
547 // molecular data use proton stopping power << 678 eloss = StoppingPower(material, kineticEnergy)*
548 // element data from ICRU49 include data for << 679 material->GetDensity()/amu;
549 if(iMolecula >= 0) { <<
550 const G4double zeff = material->GetTotNbOf <<
551 material->GetTotNbOfAtomsPerVolume(); <<
552 heChargeSquare = HeEffChargeSquare(zeff, a <<
553 eloss = HeStoppingPower(aEnergy)*heChargeS <<
554 680
555 // pure material << 681 // pure material
556 } else if(1 == numberOfElements) { 682 } else if(1 == numberOfElements) {
557 683
558 const G4Element* element = (*theElmVector) << 684 G4double z = material->GetZ();
559 eloss = HeElectronicStoppingPower(element- << 685 eloss = ElectronicStoppingPower(z, kineticEnergy)
560 * (material->GetTotNbOfAtomsPerVolume()) << 686 * (material->GetTotNbOfAtomsPerVolume());
561 687
562 // Brugg's rule calculation 688 // Brugg's rule calculation
563 } else { 689 } else {
>> 690 const G4ElementVector* theElementVector =
>> 691 material->GetElementVector() ;
>> 692
564 // loop for the elements in the material 693 // loop for the elements in the material
565 for (std::size_t i=0; i<numberOfElements; << 694 for (G4int i=0; i<numberOfElements; i++)
566 const G4Element* element = (*theElmVecto << 695 {
567 eloss += HeElectronicStoppingPower(eleme << 696 const G4Element* element = (*theElementVector)[i] ;
568 * theAtomicNumDensityVector[i]; << 697 eloss += ElectronicStoppingPower(element->GetZ(), kineticEnergy)
>> 698 * theAtomicNumDensityVector[i];
569 } 699 }
570 } 700 }
571 return eloss*theZieglerFactor; 701 return eloss*theZieglerFactor;
572 } 702 }
573 703
574 //....oooOO0OOooo........oooOO0OOooo........oo 704 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
575 705
576 G4double << 706 G4double G4BraggIonModel::HeEffChargeSquare(G4double z,
577 G4BraggIonModel::HeEffChargeSquare(const G4dou << 707 G4double kinEnergyHeInMeV) const
578 const G4dou <<
579 { 708 {
580 // The aproximation of He effective charge f 709 // The aproximation of He effective charge from:
581 // J.F.Ziegler, J.P. Biersack, U. Littmark 710 // J.F.Ziegler, J.P. Biersack, U. Littmark
582 // The Stopping and Range of Ions in Matter, 711 // The Stopping and Range of Ions in Matter,
583 // Vol.1, Pergamon Press, 1985 712 // Vol.1, Pergamon Press, 1985
584 713
585 static const G4double c[6] = {0.2865, 0.126 714 static const G4double c[6] = {0.2865, 0.1266, -0.001429,
586 0.02402,-0.011 715 0.02402,-0.01135, 0.001475};
587 716
588 G4double e = std::max(0.0, G4Log(kinEnergyHe 717 G4double e = std::max(0.0, G4Log(kinEnergyHeInMeV*massFactor));
589 G4double x = c[0] ; 718 G4double x = c[0] ;
590 G4double y = 1.0 ; 719 G4double y = 1.0 ;
591 for (G4int i=1; i<6; ++i) { 720 for (G4int i=1; i<6; ++i) {
592 y *= e; 721 y *= e;
593 x += y * c[i]; 722 x += y * c[i];
594 } 723 }
595 724
596 G4double w = 7.6 - e ; 725 G4double w = 7.6 - e ;
597 w = 1.0 + (0.007 + 0.00005*z) * G4Exp( -w*w 726 w = 1.0 + (0.007 + 0.00005*z) * G4Exp( -w*w ) ;
598 w = 4.0 * (1.0 - G4Exp(-x)) * w * w ; 727 w = 4.0 * (1.0 - G4Exp(-x)) * w * w ;
599 728
600 return w; 729 return w;
601 } 730 }
602 731
603 //....oooOO0OOooo........oooOO0OOooo........oo 732 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
604 733
605 734