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25 //
26
27 #include "G4EmLivermorePhysics.hh"
28 #include "G4ParticleDefinition.hh"
29 #include "G4SystemOfUnits.hh"
30
31 // *** Processes and models
32 // gamma
33 #include "G4PhotoElectricEffect.hh"
34 #include "G4LivermorePhotoElectricModel.hh"
35 #include "G4PhotoElectricAngularGeneratorPolarized.hh"
36
37 #include "G4ComptonScattering.hh"
38 #include "G4LivermoreComptonModel.hh"
39 #include "G4LivermorePolarizedComptonModel.hh"
40 #include "G4KleinNishinaModel.hh"
41 #include "G4LowEPPolarizedComptonModel.hh"
42
43 #include "G4GammaConversion.hh"
44 #include "G4LivermoreGammaConversionModel.hh"
45 #include "G4LivermoreGammaConversion5DModel.hh"
46
47 #include "G4RayleighScattering.hh"
48 #include "G4LivermoreRayleighModel.hh"
49 #include "G4LivermorePolarizedRayleighModel.hh"
50
51 #include "G4PEEffectFluoModel.hh"
52 #include "G4KleinNishinaModel.hh"
53
54 // e+-
55 #include "G4eMultipleScattering.hh"
56 #include "G4eIonisation.hh"
57 #include "G4LivermoreIonisationModel.hh"
58
59 #include "G4eBremsstrahlung.hh"
60 #include "G4LivermoreBremsstrahlungModel.hh"
61 #include "G4Generator2BS.hh"
62 #include "G4SeltzerBergerModel.hh"
63 #include "G4BetheHeitler5DModel.hh"
64
65 // e+
66 #include "G4eplusAnnihilation.hh"
67 #include "G4eplusTo2or3GammaModel.hh"
68
69 // hadrons
70 #include "G4hMultipleScattering.hh"
71 #include "G4MscStepLimitType.hh"
72
73 #include "G4ePairProduction.hh"
74
75 #include "G4hIonisation.hh"
76 #include "G4ionIonisation.hh"
77 #include "G4IonParametrisedLossModel.hh"
78 #include "G4NuclearStopping.hh"
79 #include "G4LindhardSorensenIonModel.hh"
80
81 // msc models
82 #include "G4UrbanMscModel.hh"
83 #include "G4WentzelVIModel.hh"
84 #include "G4GoudsmitSaundersonMscModel.hh"
85 #include "G4CoulombScattering.hh"
86 #include "G4eCoulombScatteringModel.hh"
87
88 // interfaces
89 #include "G4EmParameters.hh"
90 #include "G4EmBuilder.hh"
91 #include "G4EmStandUtil.hh"
92
93 // particles
94
95 #include "G4Gamma.hh"
96 #include "G4Electron.hh"
97 #include "G4Positron.hh"
98 #include "G4GenericIon.hh"
99
100 //
101 #include "G4PhysicsListHelper.hh"
102 #include "G4BuilderType.hh"
103 #include "G4EmModelActivator.hh"
104
105 // factory
106 #include "G4PhysicsConstructorFactory.hh"
107 //
108 G4_DECLARE_PHYSCONSTR_FACTORY(G4EmLivermorePhysics);
109
110 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
111
112 G4EmLivermorePhysics::G4EmLivermorePhysics(G4int ver, const G4String& pname)
113 : G4VPhysicsConstructor(pname)
114 {
115 SetVerboseLevel(ver);
116 G4EmParameters* param = G4EmParameters::Instance();
117 param->SetDefaults();
118 param->SetVerbose(ver);
119 param->SetMinEnergy(100*CLHEP::eV);
120 param->SetLowestElectronEnergy(100*CLHEP::eV);
121 param->SetNumberOfBinsPerDecade(20);
122 param->ActivateAngularGeneratorForIonisation(true);
123 param->SetStepFunction(0.2, 10*CLHEP::um);
124 param->SetStepFunctionMuHad(0.1, 50*CLHEP::um);
125 param->SetStepFunctionLightIons(0.1, 20*CLHEP::um);
126 param->SetStepFunctionIons(0.1, 1*CLHEP::um);
127 param->SetUseMottCorrection(true);
128 param->SetMscStepLimitType(fUseSafetyPlus);
129 param->SetMscSkin(3);
130 param->SetMscRangeFactor(0.08);
131 param->SetMuHadLateralDisplacement(true);
132 param->SetFluo(true);
133 param->SetUseICRU90Data(true);
134 param->SetFluctuationType(fUrbanFluctuation);
135 param->SetMaxNIELEnergy(1*CLHEP::MeV);
136 param->SetPositronAtRestModelType(fAllisonPositronium);
137 SetPhysicsType(bElectromagnetic);
138 }
139
140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
141
142 G4EmLivermorePhysics::~G4EmLivermorePhysics() = default;
143
144 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
145
146 void G4EmLivermorePhysics::ConstructParticle()
147 {
148 // minimal set of particles for EM physics
149 G4EmBuilder::ConstructMinimalEmSet();
150 }
151
152 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
153
154 void G4EmLivermorePhysics::ConstructProcess()
155 {
156 if(verboseLevel > 1) {
157 G4cout << "### " << GetPhysicsName() << " Construct Processes " << G4endl;
158 }
159 G4EmBuilder::PrepareEMPhysics();
160 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
161 G4EmParameters* param = G4EmParameters::Instance();
162
163 // processes used by several particles
164 G4hMultipleScattering* hmsc = new G4hMultipleScattering("ionmsc");
165
166 // high energy limit for e+- scattering models
167 G4double highEnergyLimit= param->MscEnergyLimit();
168 G4double livEnergyLimit = 1*CLHEP::GeV;
169
170 // nuclear stopping
171 G4double nielEnergyLimit = param->MaxNIELEnergy();
172 G4NuclearStopping* pnuc = nullptr;
173 if(nielEnergyLimit > 0.0) {
174 pnuc = new G4NuclearStopping();
175 pnuc->SetMaxKinEnergy(nielEnergyLimit);
176 }
177
178 // Add Livermore EM Processes
179
180 // Add gamma EM Processes
181 G4ParticleDefinition* particle = G4Gamma::Gamma();
182 G4bool polar = param->EnablePolarisation();
183
184 // photoelectric effect - Livermore model only
185 G4PhotoElectricEffect* pe = new G4PhotoElectricEffect();
186 G4VEmModel* peModel = new G4LivermorePhotoElectricModel();
187 pe->SetEmModel(peModel);
188 if(polar) {
189 peModel->SetAngularDistribution(new G4PhotoElectricAngularGeneratorPolarized());
190 }
191
192 // Compton scattering - Livermore model only
193 G4ComptonScattering* cs = new G4ComptonScattering;
194 cs->SetEmModel(new G4KleinNishinaModel());
195 G4VEmModel* cModel = nullptr;
196 if(polar) {
197 cModel = new G4LivermorePolarizedComptonModel();
198 cModel->SetHighEnergyLimit(20*CLHEP::MeV);
199 } else {
200 cModel = new G4LivermoreComptonModel();
201 cModel->SetHighEnergyLimit(livEnergyLimit);
202 }
203 cs->AddEmModel(0, cModel);
204
205 // gamma conversion
206 G4GammaConversion* gc = new G4GammaConversion();
207 G4VEmModel* convLiv = new G4LivermoreGammaConversion5DModel();
208 gc->SetEmModel(convLiv);
209
210 // Rayleigh scattering
211 G4RayleighScattering* rl = new G4RayleighScattering();
212 if(polar) {
213 rl->SetEmModel(new G4LivermorePolarizedRayleighModel());
214 }
215
216 ph->RegisterProcess(pe, particle);
217 ph->RegisterProcess(cs, particle);
218 ph->RegisterProcess(gc, particle);
219 ph->RegisterProcess(rl, particle);
220
221 // e-
222 particle = G4Electron::Electron();
223
224 // multiple and single scattering
225 G4GoudsmitSaundersonMscModel* msc1 = new G4GoudsmitSaundersonMscModel();
226 G4WentzelVIModel* msc2 = new G4WentzelVIModel();
227 msc1->SetHighEnergyLimit(highEnergyLimit);
228 msc2->SetLowEnergyLimit(highEnergyLimit);
229 G4EmBuilder::ConstructElectronMscProcess(msc1, msc2, particle);
230
231 G4eCoulombScatteringModel* ssm = new G4eCoulombScatteringModel();
232 G4CoulombScattering* ss = new G4CoulombScattering();
233 ss->SetEmModel(ssm);
234 ss->SetMinKinEnergy(highEnergyLimit);
235 ssm->SetLowEnergyLimit(highEnergyLimit);
236 ssm->SetActivationLowEnergyLimit(highEnergyLimit);
237
238 // Ionisation - Livermore should be used only for low energies
239 G4eIonisation* eioni = new G4eIonisation();
240 eioni->SetFluctModel(G4EmStandUtil::ModelOfFluctuations());
241 G4VEmModel* theIoniLiv = new G4LivermoreIonisationModel();
242 theIoniLiv->SetHighEnergyLimit(0.1*CLHEP::MeV);
243 eioni->AddEmModel(0, theIoniLiv);
244
245 // Bremsstrahlung
246 G4eBremsstrahlung* brem = new G4eBremsstrahlung();
247 G4SeltzerBergerModel* br1 = new G4SeltzerBergerModel();
248 G4eBremsstrahlungRelModel* br2 = new G4eBremsstrahlungRelModel();
249 br1->SetAngularDistribution(new G4Generator2BS());
250 br2->SetAngularDistribution(new G4Generator2BS());
251 brem->SetEmModel(br1);
252 brem->SetEmModel(br2);
253 br1->SetHighEnergyLimit(GeV);
254
255 G4ePairProduction* ee = new G4ePairProduction();
256
257 // register processes
258 ph->RegisterProcess(eioni, particle);
259 ph->RegisterProcess(brem, particle);
260 ph->RegisterProcess(ee, particle);
261 ph->RegisterProcess(ss, particle);
262
263 // e+
264 particle = G4Positron::Positron();
265
266 // multiple and single scattering
267 msc1 = new G4GoudsmitSaundersonMscModel();
268 msc2 = new G4WentzelVIModel();
269 msc1->SetHighEnergyLimit(highEnergyLimit);
270 msc2->SetLowEnergyLimit(highEnergyLimit);
271 G4EmBuilder::ConstructElectronMscProcess(msc1, msc2, particle);
272
273 ssm = new G4eCoulombScatteringModel();
274 ss = new G4CoulombScattering();
275 ss->SetEmModel(ssm);
276 ss->SetMinKinEnergy(highEnergyLimit);
277 ssm->SetLowEnergyLimit(highEnergyLimit);
278 ssm->SetActivationLowEnergyLimit(highEnergyLimit);
279
280 // ionisation
281 eioni = new G4eIonisation();
282
283 // Bremsstrahlung from standard
284 brem = new G4eBremsstrahlung();
285 br1 = new G4SeltzerBergerModel();
286 br2 = new G4eBremsstrahlungRelModel();
287 br1->SetAngularDistribution(new G4Generator2BS());
288 br2->SetAngularDistribution(new G4Generator2BS());
289 brem->SetEmModel(br1);
290 brem->SetEmModel(br2);
291 br1->SetHighEnergyLimit(GeV);
292
293 // annihilation
294 auto anni = new G4eplusAnnihilation();
295 if (param->Use3GammaAnnihilationOnFly()) {
296 anni->SetEmModel(new G4eplusTo2or3GammaModel());
297 }
298
299 // register processes
300 ph->RegisterProcess(eioni, particle);
301 ph->RegisterProcess(brem, particle);
302 ph->RegisterProcess(ee, particle);
303 ph->RegisterProcess(anni, particle);
304 ph->RegisterProcess(ss, particle);
305
306 // generic ion
307 particle = G4GenericIon::GenericIon();
308 G4ionIonisation* ionIoni = new G4ionIonisation();
309 ionIoni->SetEmModel(new G4LindhardSorensenIonModel());
310 ph->RegisterProcess(hmsc, particle);
311 ph->RegisterProcess(ionIoni, particle);
312 if(nullptr != pnuc) { ph->RegisterProcess(pnuc, particle); }
313
314 // muons, hadrons, ions
315 G4EmBuilder::ConstructCharged(hmsc, pnuc);
316
317 // extra configuration
318 G4EmModelActivator mact(GetPhysicsName());
319
320 }
321
322 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
323