| 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 // 26 //
27 27
28 #include "G4DNADingfelderChargeIncreaseModel.h 28 #include "G4DNADingfelderChargeIncreaseModel.hh"
29 #include "G4PhysicalConstants.hh" 29 #include "G4PhysicalConstants.hh"
30 #include "G4SystemOfUnits.hh" 30 #include "G4SystemOfUnits.hh"
31 #include "G4DNAMolecularMaterial.hh" 31 #include "G4DNAMolecularMaterial.hh"
32 #include "G4Log.hh" 32 #include "G4Log.hh"
33 #include "G4Pow.hh" 33 #include "G4Pow.hh"
34 #include "G4Alpha.hh" 34 #include "G4Alpha.hh"
35 35
36 static G4Pow * gpow = G4Pow::GetInstance(); 36 static G4Pow * gpow = G4Pow::GetInstance();
37 37
38 //....oooOO0OOooo........oooOO0OOooo........oo 38 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
39 39
40 using namespace std; 40 using namespace std;
41 41
42 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
43 43
44 G4DNADingfelderChargeIncreaseModel::G4DNADingf 44 G4DNADingfelderChargeIncreaseModel::G4DNADingfelderChargeIncreaseModel(const G4ParticleDefinition*,
45 45 const G4String& nam) :
46 G4VEmModel(nam) 46 G4VEmModel(nam)
47 { 47 {
48 if (verboseLevel > 0) 48 if (verboseLevel > 0)
49 { 49 {
50 G4cout << "Dingfelder charge increase mode 50 G4cout << "Dingfelder charge increase model is constructed " << G4endl;
51 } 51 }
52 } 52 }
53 53
54 //....oooOO0OOooo........oooOO0OOooo........oo 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
55 55
56 void G4DNADingfelderChargeIncreaseModel::Initi 56 void G4DNADingfelderChargeIncreaseModel::Initialise(const G4ParticleDefinition* particle,
57 57 const G4DataVector& /*cuts*/)
58 { 58 {
59 59
60 if (verboseLevel > 3) 60 if (verboseLevel > 3)
61 { 61 {
62 G4cout << "Calling G4DNADingfelderChargeIn 62 G4cout << "Calling G4DNADingfelderChargeIncreaseModel::Initialise()"
63 << G4endl; 63 << G4endl;
64 } 64 }
65 65
66 // Energy limits 66 // Energy limits
67 67
68 G4DNAGenericIonsManager *instance; 68 G4DNAGenericIonsManager *instance;
69 instance = G4DNAGenericIonsManager::Instance 69 instance = G4DNAGenericIonsManager::Instance();
70 hydrogenDef = instance->GetIon("hydrogen"); 70 hydrogenDef = instance->GetIon("hydrogen");
71 alphaPlusPlusDef = G4Alpha::Alpha(); 71 alphaPlusPlusDef = G4Alpha::Alpha();
72 alphaPlusDef = instance->GetIon("alpha+"); 72 alphaPlusDef = instance->GetIon("alpha+");
73 heliumDef = instance->GetIon("helium"); 73 heliumDef = instance->GetIon("helium");
74 74
75 G4String hydrogen; 75 G4String hydrogen;
76 G4String alphaPlus; 76 G4String alphaPlus;
77 G4String helium; 77 G4String helium;
78 78
79 // Limits 79 // Limits
80 80
81 hydrogen = hydrogenDef->GetParticleName(); 81 hydrogen = hydrogenDef->GetParticleName();
82 lowEnergyLimit[hydrogen] = 100. * eV; 82 lowEnergyLimit[hydrogen] = 100. * eV;
83 highEnergyLimit[hydrogen] = 100. * MeV; 83 highEnergyLimit[hydrogen] = 100. * MeV;
84 84
85 alphaPlus = alphaPlusDef->GetParticleName(); 85 alphaPlus = alphaPlusDef->GetParticleName();
86 lowEnergyLimit[alphaPlus] = 1. * keV; 86 lowEnergyLimit[alphaPlus] = 1. * keV;
87 highEnergyLimit[alphaPlus] = 400. * MeV; 87 highEnergyLimit[alphaPlus] = 400. * MeV;
88 88
89 helium = heliumDef->GetParticleName(); 89 helium = heliumDef->GetParticleName();
90 lowEnergyLimit[helium] = 1. * keV; 90 lowEnergyLimit[helium] = 1. * keV;
91 highEnergyLimit[helium] = 400. * MeV; 91 highEnergyLimit[helium] = 400. * MeV;
92 92
93 // 93 //
94 94
95 if (particle==hydrogenDef) 95 if (particle==hydrogenDef)
96 { 96 {
97 SetLowEnergyLimit(lowEnergyLimit[hydrogen] 97 SetLowEnergyLimit(lowEnergyLimit[hydrogen]);
98 SetHighEnergyLimit(highEnergyLimit[hydroge 98 SetHighEnergyLimit(highEnergyLimit[hydrogen]);
99 } 99 }
100 100
101 if (particle==alphaPlusDef) 101 if (particle==alphaPlusDef)
102 { 102 {
103 SetLowEnergyLimit(lowEnergyLimit[alphaPlus 103 SetLowEnergyLimit(lowEnergyLimit[alphaPlus]);
104 SetHighEnergyLimit(highEnergyLimit[alphaPl 104 SetHighEnergyLimit(highEnergyLimit[alphaPlus]);
105 } 105 }
106 106
107 if (particle==heliumDef) 107 if (particle==heliumDef)
108 { 108 {
109 SetLowEnergyLimit(lowEnergyLimit[helium]); 109 SetLowEnergyLimit(lowEnergyLimit[helium]);
110 SetHighEnergyLimit(highEnergyLimit[helium] 110 SetHighEnergyLimit(highEnergyLimit[helium]);
111 } 111 }
112 112
113 // Final state 113 // Final state
114 114
115 //ALPHA+ 115 //ALPHA+
116 116
117 f0[0][0]=1.; 117 f0[0][0]=1.;
118 a0[0][0]=2.25; 118 a0[0][0]=2.25;
119 a1[0][0]=-0.75; 119 a1[0][0]=-0.75;
120 b0[0][0]=-32.10; 120 b0[0][0]=-32.10;
121 c0[0][0]=0.600; 121 c0[0][0]=0.600;
122 d0[0][0]=2.40; 122 d0[0][0]=2.40;
123 x0[0][0]=4.60; 123 x0[0][0]=4.60;
124 124
125 x1[0][0]=-1.; 125 x1[0][0]=-1.;
126 b1[0][0]=-1.; 126 b1[0][0]=-1.;
127 127
128 numberOfPartialCrossSections[0]=1; 128 numberOfPartialCrossSections[0]=1;
129 129
130 //HELIUM 130 //HELIUM
131 131
132 f0[0][1]=1.; 132 f0[0][1]=1.;
133 a0[0][1]=2.25; 133 a0[0][1]=2.25;
134 a1[0][1]=-0.75; 134 a1[0][1]=-0.75;
135 b0[0][1]=-30.93; 135 b0[0][1]=-30.93;
136 c0[0][1]=0.590; 136 c0[0][1]=0.590;
137 d0[0][1]=2.35; 137 d0[0][1]=2.35;
138 x0[0][1]=4.29; 138 x0[0][1]=4.29;
139 139
140 f0[1][1]=1.; 140 f0[1][1]=1.;
141 a0[1][1]=2.25; 141 a0[1][1]=2.25;
142 a1[1][1]=-0.75; 142 a1[1][1]=-0.75;
143 b0[1][1]=-32.61; 143 b0[1][1]=-32.61;
144 c0[1][1]=0.435; 144 c0[1][1]=0.435;
145 d0[1][1]=2.70; 145 d0[1][1]=2.70;
146 x0[1][1]=4.45; 146 x0[1][1]=4.45;
147 147
148 x1[0][1]=-1.; 148 x1[0][1]=-1.;
149 b1[0][1]=-1.; 149 b1[0][1]=-1.;
150 150
151 x1[1][1]=-1.; 151 x1[1][1]=-1.;
152 b1[1][1]=-1.; 152 b1[1][1]=-1.;
153 153
154 numberOfPartialCrossSections[1]=2; 154 numberOfPartialCrossSections[1]=2;
155 155
156 // 156 //
157 157
158 if( verboseLevel>0 ) 158 if( verboseLevel>0 )
159 { 159 {
160 G4cout << "Dingfelder charge increase mode 160 G4cout << "Dingfelder charge increase model is initialized " << G4endl
161 << "Energy range: " 161 << "Energy range: "
162 << LowEnergyLimit() / keV << " keV - " 162 << LowEnergyLimit() / keV << " keV - "
163 << HighEnergyLimit() / MeV << " MeV for " 163 << HighEnergyLimit() / MeV << " MeV for "
164 << particle->GetParticleName() 164 << particle->GetParticleName()
165 << G4endl; 165 << G4endl;
166 } 166 }
167 167
168 // Initialize water density pointer 168 // Initialize water density pointer
169 fpMolWaterDensity = G4DNAMolecularMaterial:: 169 fpMolWaterDensity = G4DNAMolecularMaterial::Instance()->GetNumMolPerVolTableFor(G4Material::GetMaterial("G4_WATER"));
170 170
171 if (isInitialised) return; 171 if (isInitialised) return;
172 172
173 fParticleChangeForGamma = GetParticleChangeF 173 fParticleChangeForGamma = GetParticleChangeForGamma();
174 isInitialised = true; 174 isInitialised = true;
175 } 175 }
176 176
177 //....oooOO0OOooo........oooOO0OOooo........oo 177 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
178 178
179 G4double G4DNADingfelderChargeIncreaseModel::C 179 G4double G4DNADingfelderChargeIncreaseModel::CrossSectionPerVolume(const G4Material* material,
180 180 const G4ParticleDefinition* particleDefinition,
181 181 G4double k,
182 182 G4double,
183 183 G4double)
184 { 184 {
185 if (verboseLevel > 3) 185 if (verboseLevel > 3)
186 { 186 {
187 G4cout 187 G4cout
188 << "Calling CrossSectionPerVolume() of 188 << "Calling CrossSectionPerVolume() of G4DNADingfelderChargeIncreaseModel"
189 << G4endl; 189 << G4endl;
190 } 190 }
191 191
192 // Calculate total cross section for model 192 // Calculate total cross section for model
193 193
194 if ( 194 if (
195 particleDefinition != hydrogenDef 195 particleDefinition != hydrogenDef
196 && 196 &&
197 particleDefinition != alphaPlusDef 197 particleDefinition != alphaPlusDef
198 && 198 &&
199 particleDefinition != heliumDef 199 particleDefinition != heliumDef
200 ) 200 )
201 201
202 return 0; 202 return 0;
203 203
204 G4double lowLim = 0; 204 G4double lowLim = 0;
205 G4double highLim = 0; 205 G4double highLim = 0;
206 G4double totalCrossSection = 0.; 206 G4double totalCrossSection = 0.;
207 207
208 G4double waterDensity = (*fpMolWaterDensity) 208 G4double waterDensity = (*fpMolWaterDensity)[material->GetIndex()];
209 209
210 const G4String& particleName = particleDefin 210 const G4String& particleName = particleDefinition->GetParticleName();
211 211
212 std::map< G4String,G4double,std::less<G4Stri 212 std::map< G4String,G4double,std::less<G4String> >::iterator pos1;
213 pos1 = lowEnergyLimit.find(particleName); 213 pos1 = lowEnergyLimit.find(particleName);
214 214
215 if (pos1 != lowEnergyLimit.end()) 215 if (pos1 != lowEnergyLimit.end())
216 { 216 {
217 lowLim = pos1->second; 217 lowLim = pos1->second;
218 } 218 }
219 219
220 std::map< G4String,G4double,std::less<G4Stri 220 std::map< G4String,G4double,std::less<G4String> >::iterator pos2;
221 pos2 = highEnergyLimit.find(particleName); 221 pos2 = highEnergyLimit.find(particleName);
222 222
223 if (pos2 != highEnergyLimit.end()) 223 if (pos2 != highEnergyLimit.end())
224 { 224 {
225 highLim = pos2->second; 225 highLim = pos2->second;
226 } 226 }
227 227
228 if (k >= lowLim && k <= highLim) 228 if (k >= lowLim && k <= highLim)
229 { 229 {
230 //HYDROGEN 230 //HYDROGEN
231 if (particleDefinition == hydrogenDef) 231 if (particleDefinition == hydrogenDef)
232 { 232 {
233 const G4double aa = 2.835; 233 const G4double aa = 2.835;
234 const G4double bb = 0.310; 234 const G4double bb = 0.310;
235 const G4double cc = 2.100; 235 const G4double cc = 2.100;
236 const G4double dd = 0.760; 236 const G4double dd = 0.760;
237 const G4double fac = 1.0e-18; 237 const G4double fac = 1.0e-18;
238 const G4double rr = 13.606 * eV; 238 const G4double rr = 13.606 * eV;
239 239
240 G4double t = k / (proton_mass_c2/electro 240 G4double t = k / (proton_mass_c2/electron_mass_c2);
241 G4double x = t / rr; 241 G4double x = t / rr;
242 G4double temp = 4.0 * pi * Bohr_radius/n 242 G4double temp = 4.0 * pi * Bohr_radius/nm * Bohr_radius/nm * fac;
243 G4double sigmal = temp * cc * (gpow->pow 243 G4double sigmal = temp * cc * (gpow->powA(x,dd));
244 G4double sigmah = temp * (aa * G4Log(1.0 244 G4double sigmah = temp * (aa * G4Log(1.0 + x) + bb) / x;
245 totalCrossSection = 1.0/(1.0/sigmal + 1. 245 totalCrossSection = 1.0/(1.0/sigmal + 1.0/sigmah) *m*m;
246 } 246 }
247 else 247 else
248 { 248 {
249 totalCrossSection = Sum(k,particleDefini 249 totalCrossSection = Sum(k,particleDefinition);
250 } 250 }
251 } 251 }
252 252
253 if (verboseLevel > 2) 253 if (verboseLevel > 2)
254 { 254 {
255 G4cout << "_______________________________ 255 G4cout << "__________________________________" << G4endl;
256 G4cout << "G4DNADingfelderChargeIncreaseMo 256 G4cout << "G4DNADingfelderChargeIncreaseModel - XS INFO START" << G4endl;
257 G4cout << "Kinetic energy(eV)=" << k/eV << 257 G4cout << "Kinetic energy(eV)=" << k/eV << " particle : " << particleName << G4endl;
258 G4cout << "Cross section per water molecul 258 G4cout << "Cross section per water molecule (cm^2)=" << totalCrossSection/cm/cm << G4endl;
259 G4cout << "Cross section per water molecul 259 G4cout << "Cross section per water molecule (cm^-1)=" << totalCrossSection*waterDensity/(1./cm) << G4endl;
260 // G4cout << " - Cross section per water 260 // G4cout << " - Cross section per water molecule (cm^-1)="
261 // << sigma*material->GetAtomicNumDensity 261 // << sigma*material->GetAtomicNumDensityVector()[1]/(1./cm) << G4endl;
262 G4cout << "G4DNADingfelderChargeIncreaseMo 262 G4cout << "G4DNADingfelderChargeIncreaseModel - XS INFO END" << G4endl;
263 } 263 }
264 264
265 return totalCrossSection*waterDensity; 265 return totalCrossSection*waterDensity;
266 // return totalCrossSection*material->GetAto 266 // return totalCrossSection*material->GetAtomicNumDensityVector()[1];
267 267
268 } 268 }
269 269
270 //....oooOO0OOooo........oooOO0OOooo........oo 270 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
271 271
272 void G4DNADingfelderChargeIncreaseModel::Sampl 272 void G4DNADingfelderChargeIncreaseModel::SampleSecondaries(std::vector<
273 273 G4DynamicParticle*>* fvect,
274 274 const G4MaterialCutsCouple* /*couple*/,
275 275 const G4DynamicParticle* aDynamicParticle,
276 276 G4double,
277 277 G4double)
278 { 278 {
279 if (verboseLevel > 3) 279 if (verboseLevel > 3)
280 { 280 {
281 G4cout 281 G4cout
282 << "Calling SampleSecondaries() of G4D 282 << "Calling SampleSecondaries() of G4DNADingfelderChargeIncreaseModel"
283 << G4endl; 283 << G4endl;
284 } 284 }
285 285
286 if (!statCode) fParticleChangeForGamma->Prop 286 if (!statCode) fParticleChangeForGamma->ProposeLocalEnergyDeposit(0.);
287 287
288 G4ParticleDefinition* definition = aDynamicP 288 G4ParticleDefinition* definition = aDynamicParticle->GetDefinition();
289 289
290 G4double particleMass = definition->GetPDGMa 290 G4double particleMass = definition->GetPDGMass();
291 291
292 G4double inK = aDynamicParticle->GetKineticE 292 G4double inK = aDynamicParticle->GetKineticEnergy();
293 293
294 G4int finalStateIndex = RandomSelect(inK,def 294 G4int finalStateIndex = RandomSelect(inK,definition);
295 295
296 G4int n = NumberOfFinalStates(definition,fin 296 G4int n = NumberOfFinalStates(definition,finalStateIndex);
297 297
298 G4double outK = 0.; 298 G4double outK = 0.;
299 299
300 if (!statCode) outK = inK - IncomingParticle 300 if (!statCode) outK = inK - IncomingParticleBindingEnergyConstant(definition,finalStateIndex);
301 301
302 else outK = inK; 302 else outK = inK;
303 303
304 if (statCode) 304 if (statCode)
305 fParticleChangeForGamma-> 305 fParticleChangeForGamma->
306 ProposeLocalEnergyDeposit(IncomingPartic 306 ProposeLocalEnergyDeposit(IncomingParticleBindingEnergyConstant(definition,finalStateIndex));
307 307
308 fParticleChangeForGamma->ProposeTrackStatus( 308 fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill);
309 309
310 G4double electronK; 310 G4double electronK;
311 if (definition == hydrogenDef) electronK = i 311 if (definition == hydrogenDef) electronK = inK*electron_mass_c2/proton_mass_c2;
312 else electronK = inK*electron_mass_c2/(parti 312 else electronK = inK*electron_mass_c2/(particleMass);
313 313
314 if (outK<0) 314 if (outK<0)
315 { 315 {
316 G4Exception("G4DNADingfelderChargeIncrease 316 G4Exception("G4DNADingfelderChargeIncreaseModel::SampleSecondaries","em0004",
317 FatalException,"Final kinetic energy i 317 FatalException,"Final kinetic energy is negative.");
318 } 318 }
319 319
320 auto dp = new G4DynamicParticle(OutgoingPart 320 auto dp = new G4DynamicParticle(OutgoingParticleDefinition(definition,finalStateIndex),
321 aDynamicParticle->GetMomentumDirection() 321 aDynamicParticle->GetMomentumDirection(),
322 outK); 322 outK);
323 323
324 fvect->push_back(dp); 324 fvect->push_back(dp);
325 325
326 n = n - 1; 326 n = n - 1;
327 327
328 while (n>0) 328 while (n>0)
329 { 329 {
330 n--; 330 n--;
331 fvect->push_back(new G4DynamicParticle 331 fvect->push_back(new G4DynamicParticle
332 (G4Electron::Electron(), aDynamicParti 332 (G4Electron::Electron(), aDynamicParticle->GetMomentumDirection(), electronK) );
333 } 333 }
334 } 334 }
335 335
336 //....oooOO0OOooo........oooOO0OOooo........oo 336 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
337 337
338 G4int G4DNADingfelderChargeIncreaseModel::Numb 338 G4int G4DNADingfelderChargeIncreaseModel::NumberOfFinalStates(G4ParticleDefinition* particleDefinition,
339 339 G4int finalStateIndex)
340 340
341 { 341 {
342 342
343 if (particleDefinition == hydrogenDef) 343 if (particleDefinition == hydrogenDef)
344 return 2; 344 return 2;
345 345
346 if (particleDefinition == alphaPlusDef) 346 if (particleDefinition == alphaPlusDef)
347 return 2; 347 return 2;
348 348
349 if (particleDefinition == heliumDef) 349 if (particleDefinition == heliumDef)
350 { 350 {
351 if (finalStateIndex == 0) 351 if (finalStateIndex == 0)
352 return 2; 352 return 2;
353 return 3; 353 return 3;
354 } 354 }
355 355
356 return 0; 356 return 0;
357 } 357 }
358 358
359 //....oooOO0OOooo........oooOO0OOooo........oo 359 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
360 360
361 G4ParticleDefinition* G4DNADingfelderChargeInc 361 G4ParticleDefinition* G4DNADingfelderChargeIncreaseModel::OutgoingParticleDefinition(G4ParticleDefinition* particleDefinition,
362 362 G4int finalStateIndex)
363 { 363 {
364 364
365 if (particleDefinition == hydrogenDef) 365 if (particleDefinition == hydrogenDef)
366 return G4Proton::Proton(); 366 return G4Proton::Proton();
367 367
368 if (particleDefinition == alphaPlusDef) 368 if (particleDefinition == alphaPlusDef)
369 return alphaPlusPlusDef; 369 return alphaPlusPlusDef;
370 370
371 if (particleDefinition == heliumDef) 371 if (particleDefinition == heliumDef)
372 { 372 {
373 if (finalStateIndex == 0) 373 if (finalStateIndex == 0)
374 return alphaPlusDef; 374 return alphaPlusDef;
375 return alphaPlusPlusDef; 375 return alphaPlusPlusDef;
376 } 376 }
377 377
378 return nullptr; 378 return nullptr;
379 } 379 }
380 380
381 //....oooOO0OOooo........oooOO0OOooo........oo 381 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
382 382
383 G4double G4DNADingfelderChargeIncreaseModel::I 383 G4double G4DNADingfelderChargeIncreaseModel::IncomingParticleBindingEnergyConstant(G4ParticleDefinition* particleDefinition,
384 384 G4int finalStateIndex)
385 { 385 {
386 386
387 if (particleDefinition == hydrogenDef) 387 if (particleDefinition == hydrogenDef)
388 return 13.6 * eV; 388 return 13.6 * eV;
389 389
390 if (particleDefinition == alphaPlusDef) 390 if (particleDefinition == alphaPlusDef)
391 { 391 {
392 // Binding energy for He+ -> He++ + e- 392 // Binding energy for He+ -> He++ + e- 54.509 eV
393 // Binding energy for He -> He+ + e- 393 // Binding energy for He -> He+ + e- 24.587 eV
394 return 54.509 * eV; 394 return 54.509 * eV;
395 } 395 }
396 396
397 if (particleDefinition == heliumDef) 397 if (particleDefinition == heliumDef)
398 { 398 {
399 // Binding energy for He+ -> He++ + e- 399 // Binding energy for He+ -> He++ + e- 54.509 eV
400 // Binding energy for He -> He+ + e- 400 // Binding energy for He -> He+ + e- 24.587 eV
401 401
402 if (finalStateIndex == 0) 402 if (finalStateIndex == 0)
403 return 24.587 * eV; 403 return 24.587 * eV;
404 return (54.509 + 24.587) * eV; 404 return (54.509 + 24.587) * eV;
405 } 405 }
406 406
407 return 0; 407 return 0;
408 } 408 }
409 409
410 //....oooOO0OOooo........oooOO0OOooo........oo 410 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
411 411
412 G4double G4DNADingfelderChargeIncreaseModel::P 412 G4double G4DNADingfelderChargeIncreaseModel::PartialCrossSection(const G4double& k,
413 413 const G4int& index,
414 414 const G4ParticleDefinition* particleDefinition)
415 { 415 {
416 G4int particleTypeIndex = 0; 416 G4int particleTypeIndex = 0;
417 417
418 if (particleDefinition == alphaPlusDef) 418 if (particleDefinition == alphaPlusDef)
419 particleTypeIndex = 0; 419 particleTypeIndex = 0;
420 420
421 if (particleDefinition == heliumDef) 421 if (particleDefinition == heliumDef)
422 particleTypeIndex = 1; 422 particleTypeIndex = 1;
423 423
424 // 424 //
425 // sigma(T) = f0 10 ^ y(log10(T/eV)) 425 // sigma(T) = f0 10 ^ y(log10(T/eV))
426 // 426 //
427 // / a0 x + b0 x 427 // / a0 x + b0 x < x0
428 // | 428 // |
429 // y(x) = < a0 x + b0 - c0 (x - x0)^d0 x 429 // y(x) = < a0 x + b0 - c0 (x - x0)^d0 x0 <= x < x1
430 // | 430 // |
431 // \ a1 x + b1 x 431 // \ a1 x + b1 x >= x1
432 // 432 //
433 // 433 //
434 // f0, a0, a1, b0, b1, c0, d0, x0, x1 are pa 434 // f0, a0, a1, b0, b1, c0, d0, x0, x1 are parameters that change for protons and helium (0, +, ++)
435 // 435 //
436 // f0 has been added to the code in order to 436 // f0 has been added to the code in order to manage partial (shell-dependent) cross sections
437 // (if no shell dependence is present. f0=1. 437 // (if no shell dependence is present. f0=1. Sum of f0 over the considered shells should give 1)
438 // 438 //
439 // From Rad. Phys. and Chem. 59 (2000) 255-2 439 // From Rad. Phys. and Chem. 59 (2000) 255-275, M. Dingfelder et al.
440 // Inelastic-collision cross sections of liq 440 // Inelastic-collision cross sections of liquid water for interactions of energetic proton
441 // 441 //
442 442
443 if (x1[index][particleTypeIndex] < x0[index] 443 if (x1[index][particleTypeIndex] < x0[index][particleTypeIndex])
444 { 444 {
445 // 445 //
446 // if x1 < x0 means that x1 and b1 will be 446 // if x1 < x0 means that x1 and b1 will be calculated with the following formula
447 // (this piece of code is run on all alpha 447 // (this piece of code is run on all alphas and not on protons)
448 // 448 //
449 // x1 = x0 + ((a0 - a1)/(c0 * d0)) ^ (1 / 449 // x1 = x0 + ((a0 - a1)/(c0 * d0)) ^ (1 / (d0 - 1))
450 // 450 //
451 // b1 = (a0 - a1) * x1 + b0 - c0 * (x1 - x 451 // b1 = (a0 - a1) * x1 + b0 - c0 * (x1 - x0) ^ d0
452 // 452 //
453 453
454 x1[index][particleTypeIndex] = x0[index][p 454 x1[index][particleTypeIndex] = x0[index][particleTypeIndex]
455 + gpow->powA((a0[index][particleTypeIn 455 + gpow->powA((a0[index][particleTypeIndex] - a1[index][particleTypeIndex])
456 / (c0[index][particleTy 456 / (c0[index][particleTypeIndex]
457 * d0[index][particl 457 * d0[index][particleTypeIndex]),
458 1. / (d0[index][particleTyp 458 1. / (d0[index][particleTypeIndex] - 1.));
459 b1[index][particleTypeIndex] = (a0[index][ 459 b1[index][particleTypeIndex] = (a0[index][particleTypeIndex]
460 - a1[index][particleTypeIndex]) * x1[i 460 - a1[index][particleTypeIndex]) * x1[index][particleTypeIndex]
461 + b0[index][particleTypeIndex] 461 + b0[index][particleTypeIndex]
462 - c0[index][particleTypeIndex] 462 - c0[index][particleTypeIndex]
463 * gpow->powA(x1[index][particleTyp 463 * gpow->powA(x1[index][particleTypeIndex]
464 - x0[index][particl 464 - x0[index][particleTypeIndex],
465 d0[index][particleTypeI 465 d0[index][particleTypeIndex]);
466 } 466 }
467 467
468 G4double x(G4Log(k / eV)/gpow->logZ(10)); 468 G4double x(G4Log(k / eV)/gpow->logZ(10));
469 G4double y; 469 G4double y;
470 470
471 if (x < x0[index][particleTypeIndex]) 471 if (x < x0[index][particleTypeIndex])
472 y = a0[index][particleTypeIndex] * x + b0[ 472 y = a0[index][particleTypeIndex] * x + b0[index][particleTypeIndex];
473 else if (x < x1[index][particleTypeIndex]) 473 else if (x < x1[index][particleTypeIndex])
474 y = a0[index][particleTypeIndex] * x + b0[ 474 y = a0[index][particleTypeIndex] * x + b0[index][particleTypeIndex]
475 - c0[index][particleTypeIndex] 475 - c0[index][particleTypeIndex]
476 * gpow->powA(x - x0[index][particl 476 * gpow->powA(x - x0[index][particleTypeIndex],
477 d0[index][particleTypeI 477 d0[index][particleTypeIndex]);
478 else 478 else
479 y = a1[index][particleTypeIndex] * x + b1[ 479 y = a1[index][particleTypeIndex] * x + b1[index][particleTypeIndex];
480 480
481 return f0[index][particleTypeIndex] * gpow-> 481 return f0[index][particleTypeIndex] * gpow->powA(10., y) * m * m;
482 482
483 } 483 }
484 484
485 //....oooOO0OOooo........oooOO0OOooo........oo 485 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
486 486
487 G4int G4DNADingfelderChargeIncreaseModel::Rand 487 G4int G4DNADingfelderChargeIncreaseModel::RandomSelect(const G4double& k,
488 488 const G4ParticleDefinition* particleDefinition)
489 { 489 {
490 G4int particleTypeIndex = 0; 490 G4int particleTypeIndex = 0;
491 491
492 if (particleDefinition == hydrogenDef) 492 if (particleDefinition == hydrogenDef)
493 return 0; 493 return 0;
494 494
495 if (particleDefinition == alphaPlusDef) 495 if (particleDefinition == alphaPlusDef)
496 particleTypeIndex = 0; 496 particleTypeIndex = 0;
497 497
498 if (particleDefinition == heliumDef) 498 if (particleDefinition == heliumDef)
499 particleTypeIndex = 1; 499 particleTypeIndex = 1;
500 500
501 const G4int n = numberOfPartialCrossSections 501 const G4int n = numberOfPartialCrossSections[particleTypeIndex];
502 auto values(new G4double[n]); 502 auto values(new G4double[n]);
503 G4double value = 0; 503 G4double value = 0;
504 G4int i = n; 504 G4int i = n;
505 505
506 while (i > 0) 506 while (i > 0)
507 { 507 {
508 i--; 508 i--;
509 values[i] = PartialCrossSection(k, i, part 509 values[i] = PartialCrossSection(k, i, particleDefinition);
510 value += values[i]; 510 value += values[i];
511 } 511 }
512 512
513 value *= G4UniformRand(); 513 value *= G4UniformRand();
514 514
515 i = n; 515 i = n;
516 while (i > 0) 516 while (i > 0)
517 { 517 {
518 i--; 518 i--;
519 519
520 if (values[i] > value) 520 if (values[i] > value)
521 break; 521 break;
522 522
523 value -= values[i]; 523 value -= values[i];
524 } 524 }
525 525
526 delete[] values; 526 delete[] values;
527 527
528 return i; 528 return i;
529 } 529 }
530 530
531 //....oooOO0OOooo........oooOO0OOooo........oo 531 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
532 532
533 G4double G4DNADingfelderChargeIncreaseModel::S 533 G4double G4DNADingfelderChargeIncreaseModel::Sum(const G4double& k,
534 534 const G4ParticleDefinition* particleDefinition)
535 { 535 {
536 G4int particleTypeIndex = 0; 536 G4int particleTypeIndex = 0;
537 537
538 if (particleDefinition == alphaPlusDef) 538 if (particleDefinition == alphaPlusDef)
539 particleTypeIndex = 0; 539 particleTypeIndex = 0;
540 540
541 if (particleDefinition == heliumDef) 541 if (particleDefinition == heliumDef)
542 particleTypeIndex = 1; 542 particleTypeIndex = 1;
543 543
544 G4double totalCrossSection = 0.; 544 G4double totalCrossSection = 0.;
545 545
546 for (G4int i = 0; i < numberOfPartialCrossSe 546 for (G4int i = 0; i < numberOfPartialCrossSections[particleTypeIndex]; i++)
547 { 547 {
548 totalCrossSection += PartialCrossSection(k 548 totalCrossSection += PartialCrossSection(k, i, particleDefinition);
549 } 549 }
550 550
551 return totalCrossSection; 551 return totalCrossSection;
552 } 552 }
553 553