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25 //
26 //
27 //---------------------------------------------------------------------------
28 //
29 // Author: P.Dondero (paolo.dondero@cern.ch)
30 //
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33
34
35 #include "G4EmStandardPhysics_SpacePhysics.hh"
36
37 #include "G4SystemOfUnits.hh"
38 #include "G4ParticleDefinition.hh"
39 #include "G4LossTableManager.hh"
40 #include "G4EmParameters.hh"
41 #include "G4EmBuilder.hh"
42
43 #include "G4ComptonScattering.hh"
44 #include "G4GammaConversion.hh"
45 #include "G4PhotoElectricEffect.hh"
46 #include "G4RayleighScattering.hh"
47 #include "G4PEEffectFluoModel.hh"
48 #include "G4KleinNishinaModel.hh"
49 #include "G4BetheHeitler5DModel.hh"
50 #include "G4LivermorePhotoElectricModel.hh"
51 #include "G4LivermorePolarizedRayleighModel.hh"
52 #include "G4PhotoElectricAngularGeneratorPolarized.hh"
53 #include "G4LowEPComptonModel.hh"
54 #include "G4LowEPPolarizedComptonModel.hh"
55
56 #include "G4eMultipleScattering.hh"
57 #include "G4hMultipleScattering.hh"
58 #include "G4MscStepLimitType.hh"
59 #include "G4UrbanMscModel.hh"
60 #include "G4GoudsmitSaundersonMscModel.hh"
61 #include "G4DummyModel.hh"
62 #include "G4WentzelVIModel.hh"
63 #include "G4CoulombScattering.hh"
64 #include "G4eCoulombScatteringModel.hh"
65
66 #include "G4eIonisation.hh"
67 #include "G4eBremsstrahlung.hh"
68 #include "G4Generator2BS.hh"
69 #include "G4Generator2BN.hh"
70 #include "G4SeltzerBergerModel.hh"
71 #include "G4ePairProduction.hh"
72 #include "G4LivermoreIonisationModel.hh"
73 #include "G4PenelopeIonisationModel.hh"
74 #include "G4UniversalFluctuation.hh"
75 #include "G4UrbanFluctuation.hh"
76
77 #include "G4eplusAnnihilation.hh"
78
79 #include "G4hIonisation.hh"
80 #include "G4ionIonisation.hh"
81 #include "G4IonParametrisedLossModel.hh"
82 #include "G4NuclearStopping.hh"
83
84 #include "G4Gamma.hh"
85 #include "G4Electron.hh"
86 #include "G4Positron.hh"
87 #include "G4GenericIon.hh"
88
89 #include "G4PhysicsListHelper.hh"
90 #include "G4BuilderType.hh"
91 #include "G4EmModelActivator.hh"
92 #include "G4GammaGeneralProcess.hh"
93
94 // factory
95 #include "G4PhysicsConstructorFactory.hh"
96 //
97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
98
99 G4EmStandardPhysics_SpacePhysics::G4EmStandardPhysics_SpacePhysics(G4int ver, const G4String&)
100 : G4VPhysicsConstructor("G4EmStandard_SpacePhysics"), fVerbose(ver)
101 {
102 G4cout << "---> Using G4EmStandard_SpacePhysics v. 11.03 " << G4endl;
103 G4EmParameters* param = G4EmParameters::Instance();
104 param->SetDefaults();
105 param->SetVerbose(ver);
106 param->SetMinEnergy(100*CLHEP::eV);
107 param->SetLowestElectronEnergy(50*CLHEP::eV);
108 param->SetNumberOfBinsPerDecade(20);
109 param->ActivateAngularGeneratorForIonisation(true);
110 param->SetStepFunction(0.2, 10*CLHEP::um);
111 param->SetStepFunctionMuHad(0.05, 0.01*CLHEP::um);
112 param->SetStepFunctionLightIons(0.1, 20*CLHEP::um);
113 param->SetStepFunctionIons(0.1, 1*CLHEP::um);
114 param->SetUseMottCorrection(true); // use Mott-correction for e-/e+ msc gs
115 param->SetMscStepLimitType(fUseSafetyPlus); // for e-/e+ msc gs
116 param->SetMscSkin(3); // error-free stepping for e-/e+ msc gs
117 param->SetMscRangeFactor(0.08); // error-free stepping for e-/e+ msc gs
118 param->SetMuHadLateralDisplacement(true);
119 param->SetFluo(true);
120 param->SetUseICRU90Data(true);
121 param->SetMaxNIELEnergy(1*CLHEP::MeV);
122 SetPhysicsType(bElectromagnetic);
123 }
124
125 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
126
127 void G4EmStandardPhysics_SpacePhysics::ConstructParticle()
128 {
129 // minimal set of particles for EM physics
130 G4EmBuilder::ConstructMinimalEmSet();
131 }
132
133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
134
135 void G4EmStandardPhysics_SpacePhysics::ConstructProcess()
136 {
137 if(fVerbose > 1)
138 {
139 G4cout << "### " << GetPhysicsName() << " Construct Space Physics Processes " << G4endl;
140 }
141 G4EmBuilder::PrepareEMPhysics();
142
143 auto *ph = G4PhysicsListHelper::GetPhysicsListHelper();
144 auto *param = G4EmParameters::Instance();
145
146 // processes used by several particles
147 auto *hmsc = new G4hMultipleScattering("ionmsc");
148
149 // nuclear stopping is enabled if the energy limit above zero
150 G4double nielEnergyLimit = param->MaxNIELEnergy();
151 G4NuclearStopping* pnuc = nullptr;
152 if(nielEnergyLimit > 0.0)
153 {
154 pnuc = new G4NuclearStopping();
155 pnuc->SetMaxKinEnergy(nielEnergyLimit);
156 }
157
158 // high energy limit for e+- scattering models and bremsstrahlung
159 G4double highEnergyLimit = param->MscEnergyLimit();
160
161 // Add gamma EM Processes
162 G4ParticleDefinition *particle = G4Gamma::Gamma();
163 G4bool polar = param->EnablePolarisation();
164
165 // Photoelectric
166 auto *pe = new G4PhotoElectricEffect();
167 auto *peModel = new G4LivermorePhotoElectricModel();
168 pe->SetEmModel(peModel);
169 if(polar)
170 {
171 peModel->SetAngularDistribution(new G4PhotoElectricAngularGeneratorPolarized());
172 }
173
174 // Compton scattering
175 auto *cs = new G4ComptonScattering;
176 cs->SetEmModel(new G4KleinNishinaModel());
177 G4VEmModel* cModel = nullptr;
178 if(polar)
179 {
180 cModel = new G4LowEPPolarizedComptonModel();
181 }
182 else
183 {
184 cModel = new G4LowEPComptonModel();
185 }
186 cModel->SetHighEnergyLimit(20*CLHEP::MeV);
187 cs->AddEmModel(0, cModel);
188
189 // Gamma conversion
190 auto *gc = new G4GammaConversion();
191 auto *conv = new G4BetheHeitler5DModel();
192 gc->SetEmModel(conv);
193
194 // default Rayleigh scattering is Livermore
195 G4RayleighScattering* rl = new G4RayleighScattering();
196 if(polar)
197 {
198 rl->SetEmModel(new G4LivermorePolarizedRayleighModel());
199 }
200
201 if(param->GeneralProcessActive())
202 {
203 auto *sp = new G4GammaGeneralProcess();
204 sp->AddEmProcess(pe);
205 sp->AddEmProcess(cs);
206 sp->AddEmProcess(gc);
207 sp->AddEmProcess(rl);
208 G4LossTableManager::Instance()->SetGammaGeneralProcess(sp);
209 ph->RegisterProcess(sp, particle);
210 }
211 else
212 {
213 ph->RegisterProcess(pe, particle);
214 ph->RegisterProcess(cs, particle);
215 ph->RegisterProcess(gc, particle);
216 ph->RegisterProcess(rl, particle);
217 }
218
219 // e-
220 particle = G4Electron::Electron();
221
222 // multiple scattering
223 auto *msc = new G4eMultipleScattering();
224 // e-/e+ msc gs with Mott-correction
225 // (Mott-correction is set through G4EmParameters)
226 auto *msc1 = new G4GoudsmitSaundersonMscModel();
227 auto *msc2 = new G4WentzelVIModel();
228 msc1->SetHighEnergyLimit(highEnergyLimit);
229 msc2->SetLowEnergyLimit(highEnergyLimit);
230 msc->SetEmModel(msc1);
231 msc->SetEmModel(msc2);
232
233 auto *ssm = new G4eCoulombScatteringModel();
234 G4CoulombScattering* ss = new G4CoulombScattering();
235 ss->SetEmModel(ssm);
236 ss->SetMinKinEnergy(highEnergyLimit);
237 ssm->SetLowEnergyLimit(highEnergyLimit);
238 ssm->SetActivationLowEnergyLimit(highEnergyLimit);
239
240 // ionisation
241 auto *eioni = new G4eIonisation();
242 G4VEmModel* theIoniLiv = new G4LivermoreIonisationModel();
243 eioni->SetFluctModel(new G4UrbanFluctuation());
244 theIoniLiv->SetHighEnergyLimit(0.1*CLHEP::MeV);
245 eioni->AddEmModel(0, theIoniLiv, new G4UniversalFluctuation() );
246
247 // bremsstrahlung
248 auto *brem = new G4eBremsstrahlung();
249 auto *br1 = new G4SeltzerBergerModel();
250 auto *br2 = new G4eBremsstrahlungRelModel();
251 br1->SetAngularDistribution(new G4Generator2BS());
252 br2->SetAngularDistribution(new G4Generator2BS());
253 brem->SetEmModel(br1);
254 brem->SetEmModel(br2);
255 br1->SetHighEnergyLimit(CLHEP::GeV);
256
257 auto *ee = new G4ePairProduction();
258
259 // register processes
260 ph->RegisterProcess(msc, particle);
261 ph->RegisterProcess(eioni, particle);
262 ph->RegisterProcess(brem, particle);
263 ph->RegisterProcess(ee, particle);
264 ph->RegisterProcess(ss, particle);
265
266 // e+
267 particle = G4Positron::Positron();
268
269 // multiple scattering
270 msc = new G4eMultipleScattering();
271 // e-/e+ msc gs with Mott-correction
272 // (Mott-correction is set through G4EmParameters)
273 msc1 = new G4GoudsmitSaundersonMscModel();
274 msc2 = new G4WentzelVIModel();
275 msc1->SetHighEnergyLimit(highEnergyLimit);
276 msc2->SetLowEnergyLimit(highEnergyLimit);
277 msc->SetEmModel(msc1);
278 msc->SetEmModel(msc2);
279
280 ssm = new G4eCoulombScatteringModel();
281 ss = new G4CoulombScattering();
282 ss->SetEmModel(ssm);
283 ss->SetMinKinEnergy(highEnergyLimit);
284 ssm->SetLowEnergyLimit(highEnergyLimit);
285 ssm->SetActivationLowEnergyLimit(highEnergyLimit);
286
287 // ionisation
288 eioni = new G4eIonisation();
289 eioni->SetFluctModel(new G4UrbanFluctuation());
290 auto *pen = new G4PenelopeIonisationModel();
291 pen->SetHighEnergyLimit(0.1*CLHEP::MeV);
292 eioni->AddEmModel(0, pen, new G4UniversalFluctuation());
293
294 // bremsstrahlung
295 brem = new G4eBremsstrahlung();
296 br1 = new G4SeltzerBergerModel();
297 br2 = new G4eBremsstrahlungRelModel();
298 br1->SetAngularDistribution(new G4Generator2BS());
299 br2->SetAngularDistribution(new G4Generator2BS());
300 brem->SetEmModel(br1);
301 brem->SetEmModel(br2);
302 br1->SetHighEnergyLimit(CLHEP::GeV);
303
304 // register processes
305 ph->RegisterProcess(msc, particle);
306 ph->RegisterProcess(eioni, particle);
307 ph->RegisterProcess(brem, particle);
308 ph->RegisterProcess(ee, particle);
309 ph->RegisterProcess(new G4eplusAnnihilation(), particle);
310 ph->RegisterProcess(ss, particle);
311
312 // generic ion
313 particle = G4GenericIon::GenericIon();
314 auto *ionIoni = new G4ionIonisation();
315 ionIoni->SetEmModel(new G4IonParametrisedLossModel());
316 ph->RegisterProcess(hmsc, particle);
317 ph->RegisterProcess(ionIoni, particle);
318 if(nullptr != pnuc) { ph->RegisterProcess(pnuc, particle); }
319
320 // muons, hadrons, ions
321 G4EmBuilder::ConstructCharged(hmsc, pnuc);
322
323 // extra configuration
324 G4EmModelActivator mact(GetPhysicsName());
325 }
326
327 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
328