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25 // 25 //
>> 26 //
>> 27 // $Id$
>> 28 //
>> 29 //
26 // File name: G4PolarizedCompton 30 // File name: G4PolarizedCompton
27 // 31 //
28 // Author: Andreas Schaelicke 32 // Author: Andreas Schaelicke
29 // based on code by Michel Mair 33 // based on code by Michel Maire / Vladimir IVANTCHENKO
30 // <<
31 // Class description 34 // Class description
32 // modified version respecting media and bea << 35 //
33 // using the stokes formalism << 36 // modified version respecting media and beam polarization
>> 37 // using the stokes formalism
>> 38 //
>> 39 // Creation date: 01.05.2005
>> 40 //
>> 41 // Modifications:
>> 42 //
>> 43 // 01-01-05, include polarization description (A.Stahl)
>> 44 // 01-01-05, create asymmetry table and determine interactionlength (A.Stahl)
>> 45 // 01-05-05, update handling of media polarization (A.Schalicke)
>> 46 // 01-05-05, update polarized differential cross section (A.Schalicke)
>> 47 // 20-05-05, added polarization transfer (A.Schalicke)
>> 48 // 10-06-05, transformation between different reference frames (A.Schalicke)
>> 49 // 17-10-05, correct reference frame dependence in GetMeanFreePath (A.Schalicke)
>> 50 // 26-07-06, cross section recalculated (P.Starovoitov)
>> 51 // 09-08-06, make it work under current geant4 release (A.Schalicke)
>> 52 // 11-06-07, add PostStepGetPhysicalInteractionLength (A.Schalicke)
>> 53 // -----------------------------------------------------------------------------
34 54
35 #include "G4PolarizedCompton.hh" <<
36 55
>> 56 #include "G4PolarizedCompton.hh"
>> 57 #include "G4SystemOfUnits.hh"
37 #include "G4Electron.hh" 58 #include "G4Electron.hh"
38 #include "G4EmParameters.hh" << 59
39 #include "G4KleinNishinaCompton.hh" << 60 #include "G4StokesVector.hh"
40 #include "G4PhysicsTableHelper.hh" <<
41 #include "G4PolarizationManager.hh" 61 #include "G4PolarizationManager.hh"
42 #include "G4PolarizedComptonModel.hh" 62 #include "G4PolarizedComptonModel.hh"
43 #include "G4ProductionCutsTable.hh" 63 #include "G4ProductionCutsTable.hh"
44 #include "G4StokesVector.hh" << 64 #include "G4PhysicsTableHelper.hh"
45 #include "G4SystemOfUnits.hh" << 65 #include "G4KleinNishinaCompton.hh"
>> 66 #include "G4PolarizedComptonModel.hh"
46 67
47 //....oooOO0OOooo........oooOO0OOooo........oo 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48 G4PhysicsTable* G4PolarizedCompton::theAsymmet <<
49 69
50 G4PolarizedCompton::G4PolarizedCompton(const G 70 G4PolarizedCompton::G4PolarizedCompton(const G4String& processName,
51 G4Proce << 71 G4ProcessType type):
52 : G4VEmProcess(processName, type) << 72 G4VEmProcess (processName, type),
53 , fType(10) << 73 buildAsymmetryTable(true),
54 , fBuildAsymmetryTable(true) << 74 useAsymmetryTable(true),
55 , fUseAsymmetryTable(true) << 75 isInitialised(false),
56 , fIsInitialised(false) << 76 selectedModel(0),
57 { << 77 mType(10),
58 SetStartFromNullFlag(true); << 78 theAsymmetryTable(NULL)
59 SetBuildTableFlag(true); << 79 {
60 SetSecondaryParticle(G4Electron::Electron()) << 80 SetLambdaBinning(90);
>> 81 SetMinKinEnergy(0.1*keV);
>> 82 SetMaxKinEnergy(100.0*GeV);
61 SetProcessSubType(fComptonScattering); 83 SetProcessSubType(fComptonScattering);
62 SetMinKinEnergyPrim(1. * MeV); << 84 emModel = 0;
63 SetSplineFlag(true); <<
64 fEmModel = nullptr; <<
65 } <<
66 <<
67 //....oooOO0OOooo........oooOO0OOooo........oo <<
68 G4PolarizedCompton::~G4PolarizedCompton() { Cl <<
69 <<
70 //....oooOO0OOooo........oooOO0OOooo........oo <<
71 void G4PolarizedCompton::ProcessDescription(st <<
72 { <<
73 out << "Polarized model for Compton scatteri <<
74 <<
75 G4VEmProcess::ProcessDescription(out); <<
76 } 85 }
77 86
78 //....oooOO0OOooo........oooOO0OOooo........oo 87 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
79 void G4PolarizedCompton::CleanTable() << 88
>> 89 G4PolarizedCompton::~G4PolarizedCompton()
80 { 90 {
81 if(theAsymmetryTable) << 91 if (theAsymmetryTable) {
82 { <<
83 theAsymmetryTable->clearAndDestroy(); 92 theAsymmetryTable->clearAndDestroy();
84 delete theAsymmetryTable; 93 delete theAsymmetryTable;
85 theAsymmetryTable = nullptr; <<
86 } 94 }
87 } 95 }
88 96
89 //....oooOO0OOooo........oooOO0OOooo........oo 97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
90 G4bool G4PolarizedCompton::IsApplicable(const <<
91 { <<
92 return (&p == G4Gamma::Gamma()); <<
93 } <<
94 98
95 //....oooOO0OOooo........oooOO0OOooo........oo <<
96 void G4PolarizedCompton::InitialiseProcess(con 99 void G4PolarizedCompton::InitialiseProcess(const G4ParticleDefinition*)
97 { 100 {
98 if(!fIsInitialised) << 101 if(!isInitialised) {
99 { << 102 isInitialised = true;
100 fIsInitialised = true; << 103 SetBuildTableFlag(true);
101 if(0 == fType) << 104 SetSecondaryParticle(G4Electron::Electron());
102 { << 105 G4double emin = MinKinEnergy();
103 if(nullptr == EmModel(0)) << 106 G4double emax = MaxKinEnergy();
104 { << 107 emModel = new G4PolarizedComptonModel();
105 SetEmModel(new G4KleinNishinaCompton() << 108 if(0 == mType) selectedModel = new G4KleinNishinaCompton();
106 } << 109 else if(10 == mType) selectedModel = emModel;
107 } << 110 selectedModel->SetLowEnergyLimit(emin);
108 else << 111 selectedModel->SetHighEnergyLimit(emax);
109 { << 112 AddEmModel(1, selectedModel);
110 fEmModel = new G4PolarizedComptonModel() << 113 }
111 SetEmModel(fEmModel); <<
112 } <<
113 G4EmParameters* param = G4EmParameters::In <<
114 EmModel(0)->SetLowEnergyLimit(param->MinKi <<
115 EmModel(0)->SetHighEnergyLimit(param->MaxK <<
116 AddEmModel(1, EmModel(0)); <<
117 } <<
118 } 114 }
119 115
120 //....oooOO0OOooo........oooOO0OOooo........oo 116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 117
>> 118 void G4PolarizedCompton::PrintInfo()
>> 119 {
>> 120 G4cout << " Total cross sections has a good parametrisation"
>> 121 << " from 10 KeV to (100/Z) GeV"
>> 122 << "\n Sampling according " << selectedModel->GetName() << " model"
>> 123 << G4endl;
>> 124 }
>> 125
>> 126 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 127
121 void G4PolarizedCompton::SetModel(const G4Stri 128 void G4PolarizedCompton::SetModel(const G4String& ss)
122 { 129 {
123 if(ss == "Klein-Nishina") << 130 if(ss == "Klein-Nishina") mType = 0;
124 { << 131 if(ss == "Polarized-Compton") mType = 10;
125 fType = 0; <<
126 } <<
127 if(ss == "Polarized-Compton") <<
128 { <<
129 fType = 10; <<
130 } <<
131 } 132 }
132 133
>> 134
>> 135 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
133 //....oooOO0OOooo........oooOO0OOooo........oo 136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
134 G4double G4PolarizedCompton::GetMeanFreePath(c << 137
135 G << 138
136 G << 139
>> 140 G4double G4PolarizedCompton::GetMeanFreePath(
>> 141 const G4Track& aTrack,
>> 142 G4double previousStepSize,
>> 143 G4ForceCondition* condition)
137 { 144 {
138 // *** get unploarised mean free path from l 145 // *** get unploarised mean free path from lambda table ***
139 G4double mfp = << 146 G4double mfp = G4VEmProcess::GetMeanFreePath(aTrack, previousStepSize, condition);
140 G4VEmProcess::GetMeanFreePath(aTrack, prev <<
141 147
142 if(theAsymmetryTable && fUseAsymmetryTable & << 148
143 { << 149 if (theAsymmetryTable && useAsymmetryTable) {
144 mfp *= ComputeSaturationFactor(aTrack); << 150 // *** get asymmetry, if target is polarized ***
145 } << 151 const G4DynamicParticle* aDynamicGamma = aTrack.GetDynamicParticle();
146 if(verboseLevel >= 2) << 152 const G4double GammaEnergy = aDynamicGamma->GetKineticEnergy();
147 { << 153 const G4StokesVector GammaPolarization = aTrack.GetPolarization();
148 G4cout << "G4PolarizedCompton::MeanFreePat << 154 const G4ParticleMomentum GammaDirection0 = aDynamicGamma->GetMomentumDirection();
149 << G4endl; << 155
150 } << 156 G4Material* aMaterial = aTrack.GetMaterial();
151 return mfp; << 157 G4VPhysicalVolume* aPVolume = aTrack.GetVolume();
>> 158 G4LogicalVolume* aLVolume = aPVolume->GetLogicalVolume();
>> 159
>> 160 // G4Material* bMaterial = aLVolume->GetMaterial();
>> 161 G4PolarizationManager * polarizationManger = G4PolarizationManager::GetInstance();
>> 162
>> 163 const G4bool VolumeIsPolarized = polarizationManger->IsPolarized(aLVolume);
>> 164 G4StokesVector ElectronPolarization = polarizationManger->GetVolumePolarization(aLVolume);
>> 165
>> 166 if (!VolumeIsPolarized || mfp == DBL_MAX) return mfp;
>> 167
>> 168 if (verboseLevel>=2) {
>> 169
>> 170 G4cout << " Mom " << GammaDirection0 << G4endl;
>> 171 G4cout << " Polarization " << GammaPolarization << G4endl;
>> 172 G4cout << " MaterialPol. " << ElectronPolarization << G4endl;
>> 173 G4cout << " Phys. Volume " << aPVolume->GetName() << G4endl;
>> 174 G4cout << " Log. Volume " << aLVolume->GetName() << G4endl;
>> 175 G4cout << " Material " << aMaterial << G4endl;
>> 176 }
>> 177
>> 178 G4int midx= CurrentMaterialCutsCoupleIndex();
>> 179 G4PhysicsVector * aVector=(*theAsymmetryTable)(midx);
>> 180
>> 181 G4double asymmetry=0;
>> 182 if (aVector) {
>> 183 G4bool isOutRange;
>> 184 asymmetry = aVector->GetValue(GammaEnergy, isOutRange);
>> 185 } else {
>> 186 G4cout << " MaterialIndex " << midx << " is out of range \n";
>> 187 asymmetry=0;
>> 188 }
>> 189
>> 190 // we have to determine angle between particle motion
>> 191 // and target polarisation here
>> 192 // circ pol * Vec(ElectronPol)*Vec(PhotonMomentum)
>> 193 // both vectors in global reference frame
>> 194
>> 195 G4double pol=ElectronPolarization*GammaDirection0;
>> 196
>> 197 G4double polProduct = GammaPolarization.p3() * pol;
>> 198 mfp *= 1. / ( 1. + polProduct * asymmetry );
>> 199
>> 200 if (verboseLevel>=2) {
>> 201 G4cout << " MeanFreePath: " << mfp / mm << " mm " << G4endl;
>> 202 G4cout << " Asymmetry: " << asymmetry << G4endl;
>> 203 G4cout << " PolProduct: " << polProduct << G4endl;
>> 204 }
>> 205 }
>> 206
>> 207 return mfp;
152 } 208 }
153 209
154 //....oooOO0OOooo........oooOO0OOooo........oo <<
155 G4double G4PolarizedCompton::PostStepGetPhysic 210 G4double G4PolarizedCompton::PostStepGetPhysicalInteractionLength(
156 const G4Track& aTrack, G4double previousStep << 211 const G4Track& aTrack,
>> 212 G4double previousStepSize,
>> 213 G4ForceCondition* condition)
157 { 214 {
158 // save previous values << 215 // *** get unploarised mean free path from lambda table ***
159 G4double nLength = theNumberOfInteractionLen << 216 G4double mfp = G4VEmProcess::PostStepGetPhysicalInteractionLength(aTrack, previousStepSize, condition);
160 G4double iLength = currentInteractionLength; << 217
161 << 218
162 // *** compute unpolarized step limit *** << 219 if (theAsymmetryTable && useAsymmetryTable) {
163 // this changes theNumberOfInteractionLength << 220 // *** get asymmetry, if target is polarized ***
164 G4double x = G4VEmProcess::PostStepGetPhysic << 221 const G4DynamicParticle* aDynamicGamma = aTrack.GetDynamicParticle();
165 aTrack, previousStepSize, condition); << 222 const G4double GammaEnergy = aDynamicGamma->GetKineticEnergy();
166 G4double x0 = x; << 223 const G4StokesVector GammaPolarization = aTrack.GetPolarization();
167 G4double satFact = 1.0; << 224 const G4ParticleMomentum GammaDirection0 = aDynamicGamma->GetMomentumDirection();
168 << 225
169 // *** add corrections on polarisation *** << 226 G4Material* aMaterial = aTrack.GetMaterial();
170 if(theAsymmetryTable && fUseAsymmetryTable & << 227 G4VPhysicalVolume* aPVolume = aTrack.GetVolume();
171 { << 228 G4LogicalVolume* aLVolume = aPVolume->GetLogicalVolume();
172 satFact = ComputeSaturationFact << 229
173 G4double curLength = currentInteractionLen << 230 // G4Material* bMaterial = aLVolume->GetMaterial();
174 G4double prvLength = iLength * satFact; << 231 G4PolarizationManager * polarizationManger = G4PolarizationManager::GetInstance();
175 if(nLength > 0.0) << 232
176 { << 233 const G4bool VolumeIsPolarized = polarizationManger->IsPolarized(aLVolume);
177 theNumberOfInteractionLengthLeft = << 234 G4StokesVector ElectronPolarization = polarizationManger->GetVolumePolarization(aLVolume);
178 std::max(nLength - previousStepSize / << 235
179 } << 236 if (!VolumeIsPolarized || mfp == DBL_MAX) return mfp;
180 x = theNumberOfInteractionLengthLeft * cur << 237
181 } << 238 if (verboseLevel>=2) {
182 if(verboseLevel >= 2) << 239
183 { << 240 G4cout << " Mom " << GammaDirection0 << G4endl;
184 G4cout << "G4PolarizedCompton::PostStepGPI << 241 G4cout << " Polarization " << GammaPolarization << G4endl;
185 << x / mm << " mm;" << G4endl << 242 G4cout << " MaterialPol. " << ElectronPolarization << G4endl;
186 << " unpolarized valu << 243 G4cout << " Phys. Volume " << aPVolume->GetName() << G4endl;
187 << x0 / mm << " mm." << G4endl; << 244 G4cout << " Log. Volume " << aLVolume->GetName() << G4endl;
188 } << 245 G4cout << " Material " << aMaterial << G4endl;
189 return x; << 246 }
>> 247
>> 248 G4int midx= CurrentMaterialCutsCoupleIndex();
>> 249 G4PhysicsVector * aVector=(*theAsymmetryTable)(midx);
>> 250
>> 251 G4double asymmetry=0;
>> 252 if (aVector) {
>> 253 G4bool isOutRange;
>> 254 asymmetry = aVector->GetValue(GammaEnergy, isOutRange);
>> 255 } else {
>> 256 G4cout << " MaterialIndex " << midx << " is out of range \n";
>> 257 asymmetry=0;
>> 258 }
>> 259
>> 260 // we have to determine angle between particle motion
>> 261 // and target polarisation here
>> 262 // circ pol * Vec(ElectronPol)*Vec(PhotonMomentum)
>> 263 // both vectors in global reference frame
>> 264
>> 265 G4double pol=ElectronPolarization*GammaDirection0;
>> 266
>> 267 G4double polProduct = GammaPolarization.p3() * pol;
>> 268 mfp *= 1. / ( 1. + polProduct * asymmetry );
>> 269
>> 270 if (verboseLevel>=2) {
>> 271 G4cout << " MeanFreePath: " << mfp / mm << " mm " << G4endl;
>> 272 G4cout << " Asymmetry: " << asymmetry << G4endl;
>> 273 G4cout << " PolProduct: " << polProduct << G4endl;
>> 274 }
>> 275 }
>> 276
>> 277 return mfp;
190 } 278 }
191 279
192 //....oooOO0OOooo........oooOO0OOooo........oo 280 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
193 G4double G4PolarizedCompton::ComputeSaturation <<
194 { <<
195 G4double factor = 1.0; <<
196 281
197 // *** get asymmetry, if target is polarized << 282 void G4PolarizedCompton::PreparePhysicsTable(const G4ParticleDefinition& part)
198 const G4DynamicParticle* aDynamicGamma = aTr << 283 {
199 const G4double GammaEnergy = aDy << 284 G4VEmProcess::PreparePhysicsTable(part);
200 const G4StokesVector GammaPolarization = << 285 if(buildAsymmetryTable)
201 G4StokesVector(aTrack.GetPolarization()); << 286 theAsymmetryTable = G4PhysicsTableHelper::PreparePhysicsTable(theAsymmetryTable);
202 const G4ParticleMomentum GammaDirection0 = <<
203 aDynamicGamma->GetMomentumDirection(); <<
204 <<
205 const G4Material* aMaterial = aTrack.GetMate <<
206 G4VPhysicalVolume* aPVolume = aTrack.GetVolu <<
207 G4LogicalVolume* aLVolume = aPVolume->GetL <<
208 <<
209 G4PolarizationManager* polarizationManager = <<
210 G4PolarizationManager::GetInstance(); <<
211 <<
212 const G4bool VolumeIsPolarized = polarizatio <<
213 G4StokesVector ElectronPolarization = <<
214 polarizationManager->GetVolumePolarization <<
215 <<
216 if(VolumeIsPolarized) <<
217 { <<
218 if(verboseLevel >= 2) <<
219 { <<
220 G4cout << "G4PolarizedCompton::ComputeSa <<
221 G4cout << " Mom " << GammaDirection0 << <<
222 G4cout << " Polarization " << GammaPolar <<
223 G4cout << " MaterialPol. " << ElectronPo <<
224 G4cout << " Phys. Volume " << aPVolume-> <<
225 G4cout << " Log. Volume " << aLVolume-> <<
226 G4cout << " Material " << aMaterial <<
227 } <<
228 <<
229 std::size_t midx = CurrentMa <<
230 const G4PhysicsVector* aVector = nullptr; <<
231 if(midx < theAsymmetryTable->size()) <<
232 { <<
233 aVector = (*theAsymmetryTable)(midx); <<
234 } <<
235 if(aVector) <<
236 { <<
237 G4double asymmetry = aVector->Value(Gamm <<
238 <<
239 // we have to determine angle between p <<
240 // and target polarisation here <<
241 // circ pol * Vec(ElectronPol)*Vec( <<
242 // both vectors in global reference fra <<
243 <<
244 G4double pol = ElectronPolarizati <<
245 G4double polProduct = GammaPolarization. <<
246 factor /= (1. + polProduct * asymmetry); <<
247 if(verboseLevel >= 2) <<
248 { <<
249 G4cout << " Asymmetry: " << asymme <<
250 G4cout << " PolProduct: " << polPro <<
251 G4cout << " Factor: " << factor <<
252 } <<
253 } <<
254 else <<
255 { <<
256 G4ExceptionDescription ed; <<
257 ed << "Problem with asymmetry table: mat <<
258 << " is out of range or the table is <<
259 G4Exception("G4PolarizedComptonModel::Co <<
260 JustWarning, ed, ""); <<
261 } <<
262 } <<
263 return factor; <<
264 } 287 }
265 288
266 //....oooOO0OOooo........oooOO0OOooo........oo 289 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 290
>> 291
267 void G4PolarizedCompton::BuildPhysicsTable(con 292 void G4PolarizedCompton::BuildPhysicsTable(const G4ParticleDefinition& part)
268 { 293 {
269 // *** build (unpolarized) cross section tab 294 // *** build (unpolarized) cross section tables (Lambda)
270 G4VEmProcess::BuildPhysicsTable(part); 295 G4VEmProcess::BuildPhysicsTable(part);
271 if(fBuildAsymmetryTable && fEmModel) << 296 if(buildAsymmetryTable)
272 { << 297 BuildAsymmetryTable(part);
273 G4bool isMaster = true; <<
274 const G4PolarizedCompton* masterProcess = <<
275 static_cast<const G4PolarizedCompton*>(G <<
276 if(masterProcess && masterProcess != this) <<
277 { <<
278 isMaster = false; <<
279 } <<
280 if(isMaster) <<
281 { <<
282 BuildAsymmetryTable(part); <<
283 } <<
284 } <<
285 } 298 }
286 299
287 //....oooOO0OOooo........oooOO0OOooo........oo 300 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 301
>> 302
288 void G4PolarizedCompton::BuildAsymmetryTable(c 303 void G4PolarizedCompton::BuildAsymmetryTable(const G4ParticleDefinition& part)
289 { 304 {
290 // cleanup old, initialise new table <<
291 CleanTable(); <<
292 theAsymmetryTable = <<
293 G4PhysicsTableHelper::PreparePhysicsTable( <<
294 <<
295 // Access to materials 305 // Access to materials
296 const G4ProductionCutsTable* theCoupleTable << 306 const G4ProductionCutsTable* theCoupleTable=
297 G4ProductionCutsTable::GetProductionCutsTa << 307 G4ProductionCutsTable::GetProductionCutsTable();
298 G4int numOfCouples = (G4int)theCoupleTable-> << 308 size_t numOfCouples = theCoupleTable->GetTableSize();
299 if(!theAsymmetryTable) << 309 for(size_t i=0; i<numOfCouples; ++i) {
300 { << 310 if (!theAsymmetryTable) break;
301 return; << 311 if (theAsymmetryTable->GetFlag(i)) {
302 } << 312
303 G4int nbins = LambdaBinning( <<
304 G4double emin = MinKinEnergy() <<
305 G4double emax = MaxKinEnergy() <<
306 G4PhysicsLogVector* aVector = nullptr; <<
307 G4PhysicsLogVector* bVector = nullptr; <<
308 <<
309 for(G4int i = 0; i < numOfCouples; ++i) <<
310 { <<
311 if(theAsymmetryTable->GetFlag(i)) <<
312 { <<
313 // create physics vector and fill it 313 // create physics vector and fill it
314 const G4MaterialCutsCouple* couple = << 314 const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(i);
315 theCoupleTable->GetMaterialCutsCouple( <<
316 // use same parameters as for lambda 315 // use same parameters as for lambda
317 if(!aVector) << 316 G4PhysicsVector* aVector = LambdaPhysicsVector(couple);
318 { << 317 // modelManager->FillLambdaVector(aVector, couple, startFromNull);
319 aVector = new G4PhysicsLogVector(emin, <<
320 bVector = aVector; <<
321 } <<
322 else <<
323 { <<
324 bVector = new G4PhysicsLogVector(*aVec <<
325 } <<
326 318
327 for(G4int j = 0; j <= nbins; ++j) << 319 for (G4int j = 0 ; j < LambdaBinning() ; ++j ) {
328 { << 320 G4double lowEdgeEnergy = aVector->GetLowEdgeEnergy(j);
329 G4double energy = bVector->Energy(j); << 321 G4double tasm=0.;
330 G4double tasm = 0.; << 322 G4double asym = ComputeAsymmetry(lowEdgeEnergy, couple, part, 0., tasm);
331 G4double asym = ComputeAsymmetry(ene << 323 aVector->PutValue(j,asym);
332 bVector->PutValue(j, asym); <<
333 } 324 }
334 bVector->FillSecondDerivatives(); << 325
335 G4PhysicsTableHelper::SetPhysicsVector(t << 326 G4PhysicsTableHelper::SetPhysicsVector(theAsymmetryTable, i, aVector);
336 } 327 }
337 } 328 }
>> 329
338 } 330 }
339 331
340 //....oooOO0OOooo........oooOO0OOooo........oo 332 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
341 G4double G4PolarizedCompton::ComputeAsymmetry( << 333
342 G4double energy, const G4MaterialCutsCouple* << 334
343 const G4ParticleDefinition& aParticle, G4dou << 335 G4double G4PolarizedCompton::ComputeAsymmetry(G4double energy,
>> 336 const G4MaterialCutsCouple* couple,
>> 337 const G4ParticleDefinition& aParticle,
>> 338 G4double cut,
>> 339 G4double & tAsymmetry)
344 { 340 {
345 G4double lAsymmetry = 0.0; 341 G4double lAsymmetry = 0.0;
346 tAsymmetry = 0; << 342 tAsymmetry=0;
347 343
>> 344 //
348 // calculate polarized cross section 345 // calculate polarized cross section
349 G4ThreeVector thePolarization = G4ThreeVecto << 346 //
350 fEmModel->SetTargetPolarization(thePolarizat << 347 G4ThreeVector thePolarization=G4ThreeVector(0.,0.,1.);
351 fEmModel->SetBeamPolarization(thePolarizatio << 348 emModel->SetTargetPolarization(thePolarization);
352 G4double sigma2 = << 349 emModel->SetBeamPolarization(thePolarization);
353 fEmModel->CrossSection(couple, &aParticle, << 350 G4double sigma2=emModel->CrossSection(couple,&aParticle,energy,cut,energy);
354 351
>> 352 //
355 // calculate unpolarized cross section 353 // calculate unpolarized cross section
356 thePolarization = G4ThreeVector(); << 354 //
357 fEmModel->SetTargetPolarization(thePolarizat << 355 thePolarization=G4ThreeVector();
358 fEmModel->SetBeamPolarization(thePolarizatio << 356 emModel->SetTargetPolarization(thePolarization);
359 G4double sigma0 = << 357 emModel->SetBeamPolarization(thePolarization);
360 fEmModel->CrossSection(couple, &aParticle, << 358 G4double sigma0=emModel->CrossSection(couple,&aParticle,energy,cut,energy);
361 << 359
362 // determine asymmetries << 360 // determine assymmetries
363 if(sigma0 > 0.) << 361 if (sigma0>0.) {
364 { << 362 lAsymmetry=sigma2/sigma0-1.;
365 lAsymmetry = sigma2 / sigma0 - 1.; <<
366 } 363 }
367 return lAsymmetry; 364 return lAsymmetry;
368 } 365 }
>> 366
>> 367 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
369 368