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25 // 25 //
>> 26 //
>> 27 // $Id: G4SynchrotronRadiationInMat.cc,v 1.2 2006/06/29 19:56:17 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-03-patch-01 $
>> 29 //
26 // ------------------------------------------- 30 // --------------------------------------------------------------
27 // GEANT 4 class implementation file 31 // GEANT 4 class implementation file
>> 32 // CERN Geneva Switzerland
28 // 33 //
29 // History: first implementation, 34 // History: first implementation,
30 // 21-5-98 V.Grichine 35 // 21-5-98 V.Grichine
31 // 28-05-01, V.Ivanchenko minor changes t 36 // 28-05-01, V.Ivanchenko minor changes to provide ANSI -wall compilation
32 // 04.03.05, V.Grichine: get local field 37 // 04.03.05, V.Grichine: get local field interface
33 // 19-05-06, V.Ivanchenko rename from G4S 38 // 19-05-06, V.Ivanchenko rename from G4SynchrotronRadiation
34 // 39 //
>> 40 //
35 ////////////////////////////////////////////// 41 ///////////////////////////////////////////////////////////////////////////
36 42
37 #include "G4SynchrotronRadiationInMat.hh" 43 #include "G4SynchrotronRadiationInMat.hh"
38 <<
39 #include "G4EmProcessSubType.hh" <<
40 #include "G4Field.hh" <<
41 #include "G4FieldManager.hh" <<
42 #include "G4Integrator.hh" 44 #include "G4Integrator.hh"
43 #include "G4PhysicalConstants.hh" <<
44 #include "G4PropagatorInField.hh" <<
45 #include "G4SystemOfUnits.hh" <<
46 #include "G4PhysicsModelCatalog.hh" <<
47 <<
48 const G4double G4SynchrotronRadiationInMat::fI <<
49 1.000000e+00, 9.428859e-01, 9.094095e-01, 8. <<
50 8.337008e-01, 8.124961e-01, 7.925217e-01, 7. <<
51 7.381233e-01, 7.214521e-01, 7.053634e-01, 6. <<
52 6.600922e-01, 6.458793e-01, 6.320533e-01, 6. <<
53 5.926459e-01, 5.801347e-01, 5.679103e-01, 5. <<
54 5.328395e-01, 5.216482e-01, 5.106904e-01, 4. <<
55 4.791351e-01, 4.690316e-01, 4.591249e-01, 4. <<
56 4.305320e-01, 4.213608e-01, 4.123623e-01, 4. <<
57 3.863639e-01, 3.780179e-01, 3.698262e-01, 3. <<
58 3.461460e-01, 3.385411e-01, 3.310757e-01, 3. <<
59 3.094921e-01, 3.025605e-01, 2.957566e-01, 2. <<
60 2.760907e-01, 2.697773e-01, 2.635817e-01, 2. <<
61 2.456834e-01, 2.399409e-01, 2.343074e-01, 2. <<
62 2.180442e-01, 2.128303e-01, 2.077174e-01, 2. <<
63 1.929696e-01, 1.882457e-01, 1.836155e-01, 1. <<
64 1.702730e-01, 1.660036e-01, 1.618212e-01, 1. <<
65 1.497822e-01, 1.459344e-01, 1.421671e-01, 1. <<
66 1.313360e-01, 1.278785e-01, 1.244956e-01, 1. <<
67 1.147818e-01, 1.116850e-01, 1.086570e-01, 1. <<
68 9.997405e-02, 9.720975e-02, 9.450865e-02, 9. <<
69 8.677391e-02, 8.431501e-02, 8.191406e-02, 7. <<
70 7.504872e-02, 7.286944e-02, 7.074311e-02, 6. <<
71 6.467208e-02, 6.274790e-02, 6.087191e-02, 5. <<
72 5.552387e-02, 5.383150e-02, 5.218282e-02, 5. <<
73 4.749020e-02, 4.600763e-02, 4.456450e-02, 4. <<
74 4.046353e-02, 3.917002e-02, 3.791195e-02, 3. <<
75 3.434274e-02, 3.321884e-02, 3.212665e-02, 3. <<
76 2.903319e-02, 2.806076e-02, 2.711656e-02, 2. <<
77 2.444677e-02, 2.360897e-02, 2.279620e-02, 2. <<
78 2.050194e-02, 1.978324e-02, 1.908662e-02, 1. <<
79 1.712363e-02, 1.650979e-02, 1.591533e-02, 1. <<
80 1.424314e-02, 1.372117e-02, 1.321613e-02, 1. <<
81 1.179798e-02, 1.135611e-02, 1.092896e-02, 1. <<
82 9.731635e-03, 9.359254e-03, 8.999595e-03, 8. <<
83 7.993280e-03, 7.680879e-03, 7.379426e-03, 7. <<
84 6.537491e-03, 6.276605e-03, 6.025092e-03, 5. <<
85 5.323912e-03, 5.107045e-03, 4.898164e-03, 4. <<
86 4.316896e-03, 4.137454e-03, 3.964780e-03, 3. <<
87 3.485150e-03, 3.337364e-03, 3.195284e-03, 3. <<
88 2.801361e-03, 2.680213e-03, 2.563852e-03, 2. <<
89 }; <<
90 45
91 ////////////////////////////////////////////// << 46 using namespace std;
>> 47
>> 48 ////////////////////////////////////////////////////////////////////
>> 49 //
>> 50 // Constant for calculation of mean free path
>> 51 //
>> 52
>> 53 const G4double
>> 54 G4SynchrotronRadiationInMat::fLambdaConst = sqrt(3.0)*electron_mass_c2/
>> 55 (2.5*fine_structure_const*eplus*c_light) ;
>> 56
>> 57 /////////////////////////////////////////////////////////////////////
>> 58 //
>> 59 // Constant for calculation of characterictic energy
>> 60 //
>> 61
>> 62 const G4double
>> 63 G4SynchrotronRadiationInMat::fEnergyConst = 1.5*c_light*c_light*eplus*hbar_Planck/
>> 64 electron_mass_c2 ;
>> 65
>> 66 ////////////////////////////////////////////////////////////////////
>> 67 //
>> 68 // Array of integral probability of synchrotron photons:
>> 69 //
>> 70 // the corresponding energy = 0.0001*i*i*(characteristic energy)
>> 71 //
>> 72
>> 73 const G4double
>> 74 G4SynchrotronRadiationInMat::fIntegralProbabilityOfSR[200] =
>> 75 {
>> 76 1.000000e+00, 9.428859e-01, 9.094095e-01, 8.813971e-01, 8.565154e-01,
>> 77 8.337008e-01, 8.124961e-01, 7.925217e-01, 7.735517e-01, 7.554561e-01,
>> 78 7.381233e-01, 7.214521e-01, 7.053634e-01, 6.898006e-01, 6.747219e-01,
>> 79 6.600922e-01, 6.458793e-01, 6.320533e-01, 6.185872e-01, 6.054579e-01,
>> 80 5.926459e-01, 5.801347e-01, 5.679103e-01, 5.559604e-01, 5.442736e-01,
>> 81 5.328395e-01, 5.216482e-01, 5.106904e-01, 4.999575e-01, 4.894415e-01,
>> 82 4.791351e-01, 4.690316e-01, 4.591249e-01, 4.494094e-01, 4.398800e-01,
>> 83 4.305320e-01, 4.213608e-01, 4.123623e-01, 4.035325e-01, 3.948676e-01,
>> 84 3.863639e-01, 3.780179e-01, 3.698262e-01, 3.617858e-01, 3.538933e-01,
>> 85 3.461460e-01, 3.385411e-01, 3.310757e-01, 3.237474e-01, 3.165536e-01,
>> 86 3.094921e-01, 3.025605e-01, 2.957566e-01, 2.890784e-01, 2.825237e-01,
>> 87 2.760907e-01, 2.697773e-01, 2.635817e-01, 2.575020e-01, 2.515365e-01,
>> 88 2.456834e-01, 2.399409e-01, 2.343074e-01, 2.287812e-01, 2.233607e-01,
>> 89 2.180442e-01, 2.128303e-01, 2.077174e-01, 2.027040e-01, 1.977885e-01,
>> 90 1.929696e-01, 1.882457e-01, 1.836155e-01, 1.790775e-01, 1.746305e-01,
>> 91 1.702730e-01, 1.660036e-01, 1.618212e-01, 1.577243e-01, 1.537117e-01,
>> 92 1.497822e-01, 1.459344e-01, 1.421671e-01, 1.384791e-01, 1.348691e-01,
>> 93 1.313360e-01, 1.278785e-01, 1.244956e-01, 1.211859e-01, 1.179483e-01,
>> 94 1.147818e-01, 1.116850e-01, 1.086570e-01, 1.056966e-01, 1.028026e-01,
>> 95 9.997405e-02, 9.720975e-02, 9.450865e-02, 9.186969e-02, 8.929179e-02,
>> 96 8.677391e-02, 8.431501e-02, 8.191406e-02, 7.957003e-02, 7.728192e-02,
>> 97 7.504872e-02, 7.286944e-02, 7.074311e-02, 6.866874e-02, 6.664538e-02,
>> 98 6.467208e-02, 6.274790e-02, 6.087191e-02, 5.904317e-02, 5.726079e-02,
>> 99 5.552387e-02, 5.383150e-02, 5.218282e-02, 5.057695e-02, 4.901302e-02,
>> 100 4.749020e-02, 4.600763e-02, 4.456450e-02, 4.315997e-02, 4.179325e-02,
>> 101 4.046353e-02, 3.917002e-02, 3.791195e-02, 3.668855e-02, 3.549906e-02,
>> 102 3.434274e-02, 3.321884e-02, 3.212665e-02, 3.106544e-02, 3.003452e-02,
>> 103 2.903319e-02, 2.806076e-02, 2.711656e-02, 2.619993e-02, 2.531021e-02,
>> 104 2.444677e-02, 2.360897e-02, 2.279620e-02, 2.200783e-02, 2.124327e-02,
>> 105 2.050194e-02, 1.978324e-02, 1.908662e-02, 1.841151e-02, 1.775735e-02,
>> 106 1.712363e-02, 1.650979e-02, 1.591533e-02, 1.533973e-02, 1.478250e-02,
>> 107 1.424314e-02, 1.372117e-02, 1.321613e-02, 1.272755e-02, 1.225498e-02,
>> 108 1.179798e-02, 1.135611e-02, 1.092896e-02, 1.051609e-02, 1.011712e-02,
>> 109 9.731635e-03, 9.359254e-03, 8.999595e-03, 8.652287e-03, 8.316967e-03,
>> 110 7.993280e-03, 7.680879e-03, 7.379426e-03, 7.088591e-03, 6.808051e-03,
>> 111 6.537491e-03, 6.276605e-03, 6.025092e-03, 5.782661e-03, 5.549027e-03,
>> 112 5.323912e-03, 5.107045e-03, 4.898164e-03, 4.697011e-03, 4.503336e-03,
>> 113 4.316896e-03, 4.137454e-03, 3.964780e-03, 3.798649e-03, 3.638843e-03,
>> 114 3.485150e-03, 3.337364e-03, 3.195284e-03, 3.058715e-03, 2.927469e-03,
>> 115 2.801361e-03, 2.680213e-03, 2.563852e-03, 2.452110e-03, 2.344824e-03
>> 116 };
>> 117
>> 118 ///////////////////////////////////////////////////////////////////////
>> 119 //
92 // Constructor 120 // Constructor
93 G4SynchrotronRadiationInMat::G4SynchrotronRadi << 121 //
94 const G4String& processName, G4ProcessType t << 122
95 : G4VDiscreteProcess(processName, type) << 123 G4SynchrotronRadiationInMat::G4SynchrotronRadiationInMat(const G4String& processName,
96 , theGamma(G4Gamma::Gamma()) << 124 G4ProcessType type):G4VDiscreteProcess (processName, type),
97 , theElectron(G4Electron::Electron()) << 125 LowestKineticEnergy (10.*keV),
98 , thePositron(G4Positron::Positron()) << 126 HighestKineticEnergy (100.*TeV),
99 , LowestKineticEnergy(10. * keV) << 127 TotBin(200),
100 , fAlpha(0.0) << 128 theGamma (G4Gamma::Gamma() ),
101 , fRootNumber(80) << 129 theElectron ( G4Electron::Electron() ),
102 , fVerboseLevel(verboseLevel) << 130 thePositron ( G4Positron::Positron() ), fAlpha(0.0), fRootNumber(80),
>> 131 fVerboseLevel( verboseLevel )
103 { 132 {
104 G4TransportationManager* transportMgr = << 133 G4TransportationManager* transportMgr = G4TransportationManager::GetTransportationManager();
105 G4TransportationManager::GetTransportation <<
106 134
107 fFieldPropagator = transportMgr->GetPropagat 135 fFieldPropagator = transportMgr->GetPropagatorInField();
108 secID = G4PhysicsModelCatalog::GetModelID("m <<
109 SetProcessSubType(fSynchrotronRadiation); <<
110 CutInRange = GammaCutInKineticEnergyNow = El <<
111 PositronCutInKineticEnergyNow = ParticleCu <<
112 fPsiGamma = fEta = fOrderAngleK = 0.0; <<
113 } <<
114 136
>> 137 }
>> 138
115 ////////////////////////////////////////////// 139 /////////////////////////////////////////////////////////////////////////
>> 140 //
116 // Destructor 141 // Destructor
117 G4SynchrotronRadiationInMat::~G4SynchrotronRad << 142 //
118 << 143
119 G4bool G4SynchrotronRadiationInMat::IsApplicab << 144 G4SynchrotronRadiationInMat::~G4SynchrotronRadiationInMat()
120 const G4ParticleDefinition& particle) <<
121 { 145 {
122 return ((&particle == (const G4ParticleDefin << 146 ;
123 (&particle == (const G4ParticleDefin <<
124 } 147 }
>> 148
>> 149
>> 150 /////////////////////////////// METHODS /////////////////////////////////
>> 151 //
>> 152 //
>> 153 // Production of synchrotron X-ray photon
>> 154 // GEANT4 internal units.
>> 155 //
125 156
126 G4double G4SynchrotronRadiationInMat::GetLambd <<
127 <<
128 G4double G4SynchrotronRadiationInMat::GetEnerg <<
129 157
130 // Production of synchrotron X-ray photon << 158 G4double
131 // Geant4 internal units. << 159 G4SynchrotronRadiationInMat::GetMeanFreePath( const G4Track& trackData,
132 G4double G4SynchrotronRadiationInMat::GetMeanF << 160 G4double,
133 const G4Track& trackData, G4double, G4ForceC << 161 G4ForceCondition* condition)
134 { 162 {
135 // gives the MeanFreePath in GEANT4 internal 163 // gives the MeanFreePath in GEANT4 internal units
136 G4double MeanFreePath; 164 G4double MeanFreePath;
137 165
138 const G4DynamicParticle* aDynamicParticle = 166 const G4DynamicParticle* aDynamicParticle = trackData.GetDynamicParticle();
>> 167 // G4Material* aMaterial = trackData.GetMaterial();
139 168
140 *condition = NotForced; << 169 //G4bool isOutRange ;
>> 170
>> 171 *condition = NotForced ;
141 172
142 G4double gamma = << 173 G4double gamma = aDynamicParticle->GetTotalEnergy()/
143 aDynamicParticle->GetTotalEnergy() / aDyna << 174 aDynamicParticle->GetMass();
144 175
145 G4double particleCharge = aDynamicParticle-> 176 G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
146 177
147 G4double KineticEnergy = aDynamicParticle->G 178 G4double KineticEnergy = aDynamicParticle->GetKineticEnergy();
148 179
149 if(KineticEnergy < LowestKineticEnergy || ga << 180 if ( KineticEnergy < LowestKineticEnergy || gamma < 1.0e3 ) MeanFreePath = DBL_MAX;
150 MeanFreePath = DBL_MAX; <<
151 else 181 else
152 { 182 {
153 G4ThreeVector FieldValue; <<
154 const G4Field* pField = nullptr; <<
155 183
156 G4FieldManager* fieldMgr = nullptr; << 184 G4ThreeVector FieldValue;
157 G4bool fieldExertsForce = false; << 185 const G4Field* pField = 0;
>> 186
>> 187 G4FieldManager* fieldMgr=0;
>> 188 G4bool fieldExertsForce = false;
158 189
159 if((particleCharge != 0.0)) << 190 if( (particleCharge != 0.0) )
160 { 191 {
161 fieldMgr = << 192 fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
162 fFieldPropagator->FindAndSetFieldManag <<
163 193
164 if(fieldMgr != nullptr) << 194 if ( fieldMgr != 0 )
165 { 195 {
166 // If the field manager has no field, 196 // If the field manager has no field, there is no field !
167 fieldExertsForce = (fieldMgr->GetDetec << 197
>> 198 fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
168 } 199 }
169 } 200 }
170 if(fieldExertsForce) << 201 if ( fieldExertsForce )
171 { << 202 {
172 pField = fieldMgr->G << 203 pField = fieldMgr->GetDetectorField() ;
173 G4ThreeVector globPosition = trackData.G << 204 G4ThreeVector globPosition = trackData.GetPosition();
174 205
175 G4double globPosVec[4], FieldValueVec[6] << 206 G4double globPosVec[3], FieldValueVec[3];
176 207
177 globPosVec[0] = globPosition.x(); 208 globPosVec[0] = globPosition.x();
178 globPosVec[1] = globPosition.y(); 209 globPosVec[1] = globPosition.y();
179 globPosVec[2] = globPosition.z(); 210 globPosVec[2] = globPosition.z();
180 globPosVec[3] = trackData.GetGlobalTime( <<
181 211
182 pField->GetFieldValue(globPosVec, FieldV << 212 pField->GetFieldValue( globPosVec, FieldValueVec );
183 213
184 FieldValue = << 214 FieldValue = G4ThreeVector( FieldValueVec[0],
185 G4ThreeVector(FieldValueVec[0], FieldV << 215 FieldValueVec[1],
>> 216 FieldValueVec[2] );
>> 217
>> 218
>> 219
>> 220 G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
>> 221 G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum) ;
>> 222 G4double perpB = unitMcrossB.mag() ;
>> 223 G4double beta = aDynamicParticle->GetTotalMomentum()/
>> 224 (aDynamicParticle->GetTotalEnergy() );
186 225
187 G4ThreeVector unitMomentum = aDynamicPar << 226 if( perpB > 0.0 ) MeanFreePath = fLambdaConst*beta/perpB;
188 G4ThreeVector unitMcrossB = FieldValue. << 227 else MeanFreePath = DBL_MAX;
189 G4double perpB = unitMcrossB <<
190 G4double beta = aDynamicPar <<
191 (aDynamicParticle->GetTo <<
192 <<
193 if(perpB > 0.0) <<
194 MeanFreePath = fLambdaConst * beta / p <<
195 else <<
196 MeanFreePath = DBL_MAX; <<
197 } 228 }
198 else << 229 else MeanFreePath = DBL_MAX;
199 MeanFreePath = DBL_MAX; <<
200 } 230 }
201 if(fVerboseLevel > 0) 231 if(fVerboseLevel > 0)
202 { 232 {
203 G4cout << "G4SynchrotronRadiationInMat::Me << 233 G4cout<<"G4SynchrotronRadiationInMat::MeanFreePath = "<<MeanFreePath/m<<" m"<<G4endl;
204 << " m" << G4endl; <<
205 } 234 }
206 return MeanFreePath; << 235 return MeanFreePath;
207 } << 236 }
208 237
209 ////////////////////////////////////////////// 238 ////////////////////////////////////////////////////////////////////////////////
210 G4VParticleChange* G4SynchrotronRadiationInMat << 239 //
211 const G4Track& trackData, const G4Step& step << 240 //
>> 241
>> 242 G4VParticleChange*
>> 243 G4SynchrotronRadiationInMat::PostStepDoIt(const G4Track& trackData,
>> 244 const G4Step& stepData )
212 245
213 { 246 {
214 aParticleChange.Initialize(trackData); 247 aParticleChange.Initialize(trackData);
215 248
216 const G4DynamicParticle* aDynamicParticle = << 249 const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();
217 250
218 G4double gamma = << 251 G4double gamma = aDynamicParticle->GetTotalEnergy()/
219 aDynamicParticle->GetTotalEnergy() / (aDyn << 252 (aDynamicParticle->GetMass() );
220 253
221 if(gamma <= 1.0e3) << 254 if(gamma <= 1.0e3 )
222 { 255 {
223 return G4VDiscreteProcess::PostStepDoIt(tr << 256 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
224 } 257 }
225 G4double particleCharge = aDynamicParticle-> 258 G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
226 259
227 G4ThreeVector FieldValue; << 260 G4ThreeVector FieldValue;
228 const G4Field* pField = nullptr; << 261 const G4Field* pField = 0 ;
229 262
230 G4FieldManager* fieldMgr = nullptr; << 263 G4FieldManager* fieldMgr=0;
231 G4bool fieldExertsForce = false; << 264 G4bool fieldExertsForce = false;
232 265
233 if((particleCharge != 0.0)) << 266 if( (particleCharge != 0.0) )
234 { 267 {
235 fieldMgr = fFieldPropagator->FindAndSetFie << 268 fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
236 if(fieldMgr != nullptr) << 269 if ( fieldMgr != 0 )
237 { 270 {
238 // If the field manager has no field, th 271 // If the field manager has no field, there is no field !
239 fieldExertsForce = (fieldMgr->GetDetecto << 272
>> 273 fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
240 } 274 }
241 } 275 }
242 if(fieldExertsForce) << 276 if ( fieldExertsForce )
243 { 277 {
244 pField = fieldMgr->Get << 278 pField = fieldMgr->GetDetectorField() ;
245 G4ThreeVector globPosition = trackData.Get << 279 G4ThreeVector globPosition = trackData.GetPosition() ;
246 G4double globPosVec[4], FieldValueVec[6]; << 280 G4double globPosVec[3], FieldValueVec[3] ;
247 globPosVec[0] = globPosition.x(); << 281 globPosVec[0] = globPosition.x() ;
248 globPosVec[1] = globPosition.y(); << 282 globPosVec[1] = globPosition.y() ;
249 globPosVec[2] = globPosition.z(); << 283 globPosVec[2] = globPosition.z() ;
250 globPosVec[3] = trackData.GetGlobalTime(); << 284
251 << 285 pField->GetFieldValue( globPosVec, FieldValueVec ) ;
252 pField->GetFieldValue(globPosVec, FieldVal << 286 FieldValue = G4ThreeVector( FieldValueVec[0],
253 FieldValue = << 287 FieldValueVec[1],
254 G4ThreeVector(FieldValueVec[0], FieldVal << 288 FieldValueVec[2] );
255 << 289
256 G4ThreeVector unitMomentum = aDynamicParti << 290 G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
257 G4ThreeVector unitMcrossB = FieldValue.cr << 291 G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum);
258 G4double perpB = unitMcrossB.m << 292 G4double perpB = unitMcrossB.mag() ;
259 if(perpB > 0.0) 293 if(perpB > 0.0)
260 { 294 {
261 // M-C of synchrotron photon energy 295 // M-C of synchrotron photon energy
262 G4double energyOfSR = GetRandomEnergySR( << 296
>> 297 G4double energyOfSR = GetRandomEnergySR(gamma,perpB);
263 298
264 if(fVerboseLevel > 0) 299 if(fVerboseLevel > 0)
265 { 300 {
266 G4cout << "SR photon energy = " << ene << 301 G4cout<<"SR photon energy = "<<energyOfSR/keV<<" keV"<<G4endl;
267 } 302 }
268 <<
269 // check against insufficient energy 303 // check against insufficient energy
270 if(energyOfSR <= 0.0) <<
271 { <<
272 return G4VDiscreteProcess::PostStepDoI <<
273 } <<
274 G4double kineticEnergy = aDynamicParticl <<
275 G4ParticleMomentum particleDirection = <<
276 aDynamicParticle->GetMomentumDirection <<
277 304
278 // M-C of its direction, simplified dipo << 305 if( energyOfSR <= 0.0 )
279 G4double cosTheta, sinTheta, fcos, beta; <<
280 <<
281 do <<
282 { 306 {
283 cosTheta = 1. - 2. * G4UniformRand(); << 307 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
284 fcos = (1 + cosTheta * cosTheta) * <<
285 } 308 }
286 // Loop checking, 07-Aug-2015, Vladimir << 309 G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
287 while(fcos < G4UniformRand()); << 310 G4ParticleMomentum
288 << 311 particleDirection = aDynamicParticle->GetMomentumDirection();
289 beta = std::sqrt(1. - 1. / (gamma * gamm <<
290 <<
291 cosTheta = (cosTheta + beta) / (1. + bet <<
292 312
293 if(cosTheta > 1.) << 313 // M-C of its direction
294 cosTheta = 1.; << 314
295 if(cosTheta < -1.) << 315 G4double Teta = G4UniformRand()/gamma ; // Very roughly
296 cosTheta = -1.; <<
297 316
298 sinTheta = std::sqrt(1. - cosTheta * cos << 317 G4double Phi = twopi * G4UniformRand() ;
299 318
300 G4double Phi = twopi * G4UniformRand(); << 319 G4double dirx = sin(Teta)*cos(Phi) ,
>> 320 diry = sin(Teta)*sin(Phi) ,
>> 321 dirz = cos(Teta) ;
301 322
302 G4double dirx = sinTheta * std::cos(Phi) << 323 G4ThreeVector gammaDirection ( dirx, diry, dirz);
303 G4double diry = sinTheta * std::sin(Phi) << 324 gammaDirection.rotateUz(particleDirection);
304 G4double dirz = cosTheta; << 325
>> 326 // polarization of new gamma
305 327
306 G4ThreeVector gammaDirection(dirx, diry, << 328 // G4double sx = cos(Teta)*cos(Phi);
307 gammaDirection.rotateUz(particleDirectio << 329 // G4double sy = cos(Teta)*sin(Phi);
>> 330 // G4double sz = -sin(Teta);
308 331
309 // polarization of new gamma <<
310 G4ThreeVector gammaPolarization = FieldV 332 G4ThreeVector gammaPolarization = FieldValue.cross(gammaDirection);
311 gammaPolarization = gammaP << 333 gammaPolarization = gammaPolarization.unit();
>> 334
>> 335 // (sx, sy, sz);
>> 336 // gammaPolarization.rotateUz(particleDirection);
312 337
313 // create G4DynamicParticle object for t 338 // create G4DynamicParticle object for the SR photon
314 auto aGamma = << 339
315 new G4DynamicParticle(G4Gamma::Gamma() << 340 G4DynamicParticle* aGamma= new G4DynamicParticle ( G4Gamma::Gamma(),
316 aGamma->SetPolarization(gammaPolarizatio << 341 gammaDirection,
317 gammaPolarizatio << 342 energyOfSR );
>> 343 aGamma->SetPolarization( gammaPolarization.x(),
>> 344 gammaPolarization.y(),
>> 345 gammaPolarization.z() );
318 346
319 aParticleChange.SetNumberOfSecondaries(1 <<
320 347
321 // Update the incident particle << 348 aParticleChange.SetNumberOfSecondaries(1);
322 G4double newKinEnergy = kineticEnergy - << 349 aParticleChange.AddSecondary(aGamma);
323 350
324 if(newKinEnergy > 0.) << 351 // Update the incident particle
>> 352
>> 353 G4double newKinEnergy = kineticEnergy - energyOfSR ;
>> 354
>> 355 if (newKinEnergy > 0.)
325 { 356 {
326 aParticleChange.ProposeMomentumDirecti << 357 aParticleChange.ProposeMomentumDirection( particleDirection );
327 aParticleChange.ProposeEnergy(newKinEn << 358 aParticleChange.ProposeEnergy( newKinEnergy );
328 aParticleChange.ProposeLocalEnergyDepo << 359 aParticleChange.ProposeLocalEnergyDeposit (0.);
329 } << 360 }
330 else 361 else
331 { << 362 {
332 aParticleChange.ProposeEnergy(0.); << 363 aParticleChange.ProposeEnergy( 0. );
333 aParticleChange.ProposeLocalEnergyDepo << 364 aParticleChange.ProposeLocalEnergyDeposit (0.);
334 G4double charge = aDynamicParticle->Ge << 365 G4double charge = aDynamicParticle->GetDefinition()->GetPDGCharge();
335 if(charge < 0.) << 366 if (charge<0.)
336 { 367 {
337 aParticleChange.ProposeTrackStatus(f << 368 aParticleChange.ProposeTrackStatus(fStopAndKill) ;
338 } << 369 }
339 else << 370 else
340 { 371 {
341 aParticleChange.ProposeTrackStatus(f << 372 aParticleChange.ProposeTrackStatus(fStopButAlive) ;
342 } << 373 }
343 } << 374 }
344 << 375 }
345 // Create the G4Track <<
346 G4Track* aSecondaryTrack = new G4Track(a <<
347 aSecondaryTrack->SetTouchableHandle(step <<
348 aSecondaryTrack->SetParentID(trackData.G <<
349 aSecondaryTrack->SetCreatorModelID(secID <<
350 aParticleChange.AddSecondary(aSecondaryT <<
351 } <<
352 else 376 else
353 { 377 {
354 return G4VDiscreteProcess::PostStepDoIt( << 378 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
355 } 379 }
356 } << 380 }
357 return G4VDiscreteProcess::PostStepDoIt(trac << 381 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
358 } 382 }
359 383
360 G4double G4SynchrotronRadiationInMat::GetPhoto << 384
361 << 385 G4double
>> 386 G4SynchrotronRadiationInMat::GetPhotonEnergy( const G4Track& trackData,
>> 387 const G4Step& )
>> 388
362 { 389 {
363 G4int i; << 390 G4int i ;
364 G4double energyOfSR = -1.0; << 391 G4double energyOfSR = -1.0 ;
>> 392 //G4Material* aMaterial=trackData.GetMaterial() ;
365 393
366 const G4DynamicParticle* aDynamicParticle = << 394 const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();
367 395
368 G4double gamma = << 396 G4double gamma = aDynamicParticle->GetTotalEnergy()/
369 aDynamicParticle->GetTotalEnergy() / (aDyn << 397 (aDynamicParticle->GetMass() ) ;
370 398
371 G4double particleCharge = aDynamicParticle-> 399 G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
372 400
373 G4ThreeVector FieldValue; << 401 G4ThreeVector FieldValue;
374 const G4Field* pField = nullptr; << 402 const G4Field* pField = 0 ;
375 403
376 G4FieldManager* fieldMgr = nullptr; << 404 G4FieldManager* fieldMgr=0;
377 G4bool fieldExertsForce = false; << 405 G4bool fieldExertsForce = false;
378 406
379 if((particleCharge != 0.0)) << 407 if( (particleCharge != 0.0) )
380 { 408 {
381 fieldMgr = fFieldPropagator->FindAndSetFie << 409 fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
382 if(fieldMgr != nullptr) << 410 if ( fieldMgr != 0 )
383 { 411 {
384 // If the field manager has no field, th 412 // If the field manager has no field, there is no field !
385 fieldExertsForce = (fieldMgr->GetDetecto << 413
>> 414 fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
386 } 415 }
387 } 416 }
388 if(fieldExertsForce) << 417 if ( fieldExertsForce )
389 { << 418 {
390 pField = fieldMgr->Get << 419 pField = fieldMgr->GetDetectorField();
391 G4ThreeVector globPosition = trackData.Get << 420 G4ThreeVector globPosition = trackData.GetPosition();
392 G4double globPosVec[3], FieldValueVec[3]; << 421 G4double globPosVec[3], FieldValueVec[3];
393 422
394 globPosVec[0] = globPosition.x(); 423 globPosVec[0] = globPosition.x();
395 globPosVec[1] = globPosition.y(); 424 globPosVec[1] = globPosition.y();
396 globPosVec[2] = globPosition.z(); 425 globPosVec[2] = globPosition.z();
397 426
398 pField->GetFieldValue(globPosVec, FieldVal << 427 pField->GetFieldValue( globPosVec, FieldValueVec );
399 FieldValue = << 428 FieldValue = G4ThreeVector( FieldValueVec[0],
400 G4ThreeVector(FieldValueVec[0], FieldVal << 429 FieldValueVec[1],
401 << 430 FieldValueVec[2] );
402 G4ThreeVector unitMomentum = aDynamicParti << 431
403 G4ThreeVector unitMcrossB = FieldValue.cr << 432 G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
>> 433 G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum) ;
404 G4double perpB = unitMcrossB.m 434 G4double perpB = unitMcrossB.mag();
405 if(perpB > 0.0) << 435 if( perpB > 0.0 )
406 { 436 {
407 // M-C of synchrotron photon energy 437 // M-C of synchrotron photon energy
408 G4double random = G4UniformRand(); << 438
409 for(i = 0; i < 200; ++i) << 439 G4double random = G4UniformRand() ;
>> 440 for(i=0;i<200;i++)
410 { 441 {
411 if(random >= fIntegralProbabilityOfSR[ << 442 if(random >= fIntegralProbabilityOfSR[i]) break ;
412 break; <<
413 } 443 }
414 energyOfSR = 0.0001 * i * i * fEnergyCon << 444 energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;
415 445
416 // check against insufficient energy 446 // check against insufficient energy
>> 447
417 if(energyOfSR <= 0.0) 448 if(energyOfSR <= 0.0)
418 { 449 {
419 return -1.0; << 450 return -1.0 ;
420 } 451 }
421 } << 452 //G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
>> 453 //G4ParticleMomentum
>> 454 //particleDirection = aDynamicParticle->GetMomentumDirection();
>> 455
>> 456 // Gamma production cut in this material
>> 457 //G4double
>> 458 //gammaEnergyCut = (G4Gamma::GetCutsInEnergy())[aMaterial->GetIndex()];
>> 459
>> 460 // SR photon has energy more than the current material cut
>> 461 // M-C of its direction
>> 462
>> 463 //G4double Teta = G4UniformRand()/gamma ; // Very roughly
>> 464
>> 465 //G4double Phi = twopi * G4UniformRand() ;
>> 466 }
422 else 467 else
423 { 468 {
424 return -1.0; << 469 return -1.0 ;
425 } 470 }
426 } << 471 }
427 return energyOfSR; << 472 return energyOfSR ;
428 } 473 }
429 474
430 ////////////////////////////////////////////// 475 /////////////////////////////////////////////////////////////////////////////////
431 G4double G4SynchrotronRadiationInMat::GetRando << 476 //
432 << 477 //
>> 478
>> 479 G4double G4SynchrotronRadiationInMat::GetRandomEnergySR(G4double gamma, G4double perpB)
433 { 480 {
434 G4int i; << 481 G4int i, iMax;
435 static constexpr G4int iMax = 200; <<
436 G4double energySR, random, position; 482 G4double energySR, random, position;
437 483
>> 484 iMax = 200;
438 random = G4UniformRand(); 485 random = G4UniformRand();
439 486
440 for(i = 0; i < iMax; ++i) << 487 for( i = 0; i < iMax; i++ )
441 { 488 {
442 if(random >= fIntegralProbabilityOfSR[i]) << 489 if( random >= fIntegralProbabilityOfSR[i] ) break;
443 break; <<
444 } 490 }
445 if(i <= 0) << 491 if(i <= 0 ) position = G4UniformRand(); // 0.
446 position = G4UniformRand(); << 492 else if( i>= iMax) position = G4double(iMax);
447 else if(i >= iMax) << 493 else position = i + G4UniformRand(); // -1
448 position = G4double(iMax); << 494 //
449 else << 495 // it was in initial implementation:
450 position = i + G4UniformRand(); << 496 // energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;
451 497
452 energySR = << 498 energySR = 0.0001*position*position*fEnergyConst*gamma*gamma*perpB;
453 0.0001 * position * position * fEnergyCons <<
454 499
455 if(energySR < 0.) << 500 if( energySR < 0. ) energySR = 0.;
456 energySR = 0.; <<
457 501
458 return energySR; 502 return energySR;
459 } 503 }
460 504
461 ////////////////////////////////////////////// 505 /////////////////////////////////////////////////////////////////////////
462 G4double G4SynchrotronRadiationInMat::GetProbS << 506 //
>> 507 // return
>> 508
>> 509 G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt( G4double t)
463 { 510 {
464 G4double result, hypCos2, hypCos = std::cosh << 511 G4double result, hypCos2, hypCos=std::cosh(t);
465 512
466 hypCos2 = hypCos * hypCos; << 513 hypCos2 = hypCos*hypCos;
467 result = std::cosh(5. * t / 3.) * std::exp(t << 514 result = std::cosh(5.*t/3.)*std::exp(t-fKsi*hypCos); // fKsi > 0. !
468 result /= hypCos2; 515 result /= hypCos2;
469 return result; 516 return result;
470 } 517 }
471 518
472 ////////////////////////////////////////////// 519 ///////////////////////////////////////////////////////////////////////////
>> 520 //
473 // return the probability to emit SR photon wi 521 // return the probability to emit SR photon with relative energy
474 // energy/energy_c >= ksi 522 // energy/energy_c >= ksi
475 // for ksi <= 0. P = 1., however the method wo 523 // for ksi <= 0. P = 1., however the method works for ksi > 0 only!
476 G4double G4SynchrotronRadiationInMat::GetIntPr << 524
>> 525 G4double G4SynchrotronRadiationInMat::GetIntProbSR( G4double ksi)
477 { 526 {
478 if(ksi <= 0.) << 527 if (ksi <= 0.) return 1.0;
479 return 1.0; << 528 fKsi = ksi; // should be > 0. !
480 fKsi = ksi; // should be > 0. ! <<
481 G4int n; 529 G4int n;
482 G4double result, a; 530 G4double result, a;
483 531
484 a = fAlpha; // always = 0. << 532 a = fAlpha; // always = 0.
485 n = fRootNumber; // around default = 80 << 533 n = fRootNumber; // around default = 80
486 534
487 G4Integrator<G4SynchrotronRadiationInMat, << 535 G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
488 G4double (G4SynchrotronRadiatio <<
489 integral; <<
490 536
491 result = integral.Laguerre( << 537 result = integral.Laguerre(this,
492 this, &G4SynchrotronRadiationInMat::GetPro << 538 &G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt, a, n);
493 539
494 result *= 3. / 5. / pi; << 540 result *= 3./5./pi;
495 541
496 return result; 542 return result;
497 } 543 }
498 544
499 ////////////////////////////////////////////// 545 /////////////////////////////////////////////////////////////////////////
>> 546 //
500 // return an auxiliary function for K_5/3 inte 547 // return an auxiliary function for K_5/3 integral representation
501 G4double G4SynchrotronRadiationInMat::GetProbS <<
502 { <<
503 G4double result, hypCos = std::cosh(t); <<
504 548
505 result = std::cosh(5. * t / 3.) * std::exp(t << 549 G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy( G4double t)
>> 550 {
>> 551 G4double result, hypCos=std::cosh(t);
>> 552
>> 553 result = std::cosh(5.*t/3.)*std::exp(t - fKsi*hypCos); // fKsi > 0. !
506 result /= hypCos; 554 result /= hypCos;
507 return result; 555 return result;
508 } 556 }
509 557
510 ////////////////////////////////////////////// 558 ///////////////////////////////////////////////////////////////////////////
>> 559 //
511 // return the probability to emit SR photon en 560 // return the probability to emit SR photon energy with relative energy
512 // energy/energy_c >= ksi 561 // energy/energy_c >= ksi
513 // for ksi <= 0. P = 1., however the method wo 562 // for ksi <= 0. P = 1., however the method works for ksi > 0 only!
514 G4double G4SynchrotronRadiationInMat::GetEnerg << 563
>> 564 G4double G4SynchrotronRadiationInMat::GetEnergyProbSR( G4double ksi)
515 { 565 {
516 if(ksi <= 0.) << 566 if (ksi <= 0.) return 1.0;
517 return 1.0; << 567 fKsi = ksi; // should be > 0. !
518 fKsi = ksi; // should be > 0. ! <<
519 G4int n; 568 G4int n;
520 G4double result, a; 569 G4double result, a;
521 570
522 a = fAlpha; // always = 0. << 571 a = fAlpha; // always = 0.
523 n = fRootNumber; // around default = 80 << 572 n = fRootNumber; // around default = 80
524 573
525 G4Integrator<G4SynchrotronRadiationInMat, << 574 G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
526 G4double (G4SynchrotronRadiatio <<
527 integral; <<
528 575
529 result = integral.Laguerre( << 576 result = integral.Laguerre(this,
530 this, &G4SynchrotronRadiationInMat::GetPro << 577 &G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy, a, n);
531 578
532 result *= 9. * std::sqrt(3.) * ksi / 8. / pi << 579 result *= 9.*std::sqrt(3.)*ksi/8./pi;
533 580
534 return result; 581 return result;
535 } 582 }
536 583
537 ////////////////////////////////////////////// 584 /////////////////////////////////////////////////////////////////////////////
538 G4double G4SynchrotronRadiationInMat::GetInteg << 585 //
539 { << 586 //
540 G4double result, hypCos = std::cosh(t); <<
541 587
542 result = << 588 G4double G4SynchrotronRadiationInMat::GetIntegrandForAngleK( G4double t)
543 std::cosh(fOrderAngleK * t) * std::exp(t - << 589 {
>> 590 G4double result, hypCos=std::cosh(t);
>> 591
>> 592 result = std::cosh(fOrderAngleK*t)*std::exp(t - fEta*hypCos); // fEta > 0. !
544 result /= hypCos; 593 result /= hypCos;
545 return result; 594 return result;
546 } 595 }
547 596
548 ////////////////////////////////////////////// 597 //////////////////////////////////////////////////////////////////////////
>> 598 //
549 // Return K 1/3 or 2/3 for angular distributio 599 // Return K 1/3 or 2/3 for angular distribution
550 G4double G4SynchrotronRadiationInMat::GetAngle << 600
>> 601 G4double G4SynchrotronRadiationInMat::GetAngleK( G4double eta)
551 { 602 {
552 fEta = eta; // should be > 0. ! << 603 fEta = eta; // should be > 0. !
553 G4int n; 604 G4int n;
554 G4double result, a; 605 G4double result, a;
555 606
556 a = fAlpha; // always = 0. << 607 a = fAlpha; // always = 0.
557 n = fRootNumber; // around default = 80 << 608 n = fRootNumber; // around default = 80
558 609
559 G4Integrator<G4SynchrotronRadiationInMat, << 610 G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
560 G4double (G4SynchrotronRadiatio <<
561 integral; <<
562 611
563 result = integral.Laguerre( << 612 result = integral.Laguerre(this,
564 this, &G4SynchrotronRadiationInMat::GetInt << 613 &G4SynchrotronRadiationInMat::GetIntegrandForAngleK, a, n);
565 614
566 return result; 615 return result;
567 } 616 }
568 617
569 ////////////////////////////////////////////// 618 /////////////////////////////////////////////////////////////////////////
>> 619 //
570 // Relative angle diff distribution for given 620 // Relative angle diff distribution for given fKsi, which is set externally
571 G4double G4SynchrotronRadiationInMat::GetAngle <<
572 { <<
573 G4double result, funK, funK2, gpsi2 = gpsi * <<
574 <<
575 fPsiGamma = gpsi; <<
576 fEta = 0.5 * fKsi * (1. + gpsi2) * std: <<
577 621
578 fOrderAngleK = 1. / 3.; << 622 G4double G4SynchrotronRadiationInMat::GetAngleNumberAtGammaKsi( G4double gpsi)
579 funK = GetAngleK(fEta); << 623 {
580 funK2 = funK * funK; << 624 G4double result, funK, funK2, gpsi2 = gpsi*gpsi;
581 625
582 result = gpsi2 * funK2 / (1. + gpsi2); << 626 fPsiGamma = gpsi;
>> 627 fEta = 0.5*fKsi*(1 + gpsi2)*std::sqrt(1 + gpsi2);
>> 628
>> 629 fOrderAngleK = 1./3.;
>> 630 funK = GetAngleK(fEta);
>> 631 funK2 = funK*funK;
>> 632
>> 633 result = gpsi2*funK2/(1 + gpsi2);
>> 634
>> 635 fOrderAngleK = 2./3.;
>> 636 funK = GetAngleK(fEta);
>> 637 funK2 = funK*funK;
>> 638
>> 639 result += funK2;
>> 640 result *= (1 + gpsi2)*fKsi;
>> 641
>> 642 return result;
>> 643 }
583 644
584 fOrderAngleK = 2. / 3.; <<
585 funK = GetAngleK(fEta); <<
586 funK2 = funK * funK; <<
587 645
588 result += funK2; << 646 ///////////////////// end of G4SynchrotronRadiationInMat.cc
589 result *= (1. + gpsi2) * fKsi; <<
590 647
591 return result; <<
592 } <<
593 648