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25 // 25 //
>> 26 //
>> 27 // $Id: G4SynchrotronRadiationInMat.cc 91871 2015-08-07 15:22:30Z gcosmo $
>> 28 //
26 // ------------------------------------------- 29 // --------------------------------------------------------------
27 // GEANT 4 class implementation file 30 // GEANT 4 class implementation file
>> 31 // CERN Geneva Switzerland
28 // 32 //
29 // History: first implementation, 33 // History: first implementation,
30 // 21-5-98 V.Grichine 34 // 21-5-98 V.Grichine
31 // 28-05-01, V.Ivanchenko minor changes t 35 // 28-05-01, V.Ivanchenko minor changes to provide ANSI -wall compilation
32 // 04.03.05, V.Grichine: get local field 36 // 04.03.05, V.Grichine: get local field interface
33 // 19-05-06, V.Ivanchenko rename from G4S 37 // 19-05-06, V.Ivanchenko rename from G4SynchrotronRadiation
34 // 38 //
>> 39 //
35 ////////////////////////////////////////////// 40 ///////////////////////////////////////////////////////////////////////////
36 41
37 #include "G4SynchrotronRadiationInMat.hh" 42 #include "G4SynchrotronRadiationInMat.hh"
38 <<
39 #include "G4EmProcessSubType.hh" <<
40 #include "G4Field.hh" <<
41 #include "G4FieldManager.hh" <<
42 #include "G4Integrator.hh" <<
43 #include "G4PhysicalConstants.hh" 43 #include "G4PhysicalConstants.hh"
44 #include "G4PropagatorInField.hh" <<
45 #include "G4SystemOfUnits.hh" 44 #include "G4SystemOfUnits.hh"
46 #include "G4PhysicsModelCatalog.hh" << 45 #include "G4Integrator.hh"
>> 46 #include "G4EmProcessSubType.hh"
47 47
48 const G4double G4SynchrotronRadiationInMat::fI << 48 ////////////////////////////////////////////////////////////////////
49 1.000000e+00, 9.428859e-01, 9.094095e-01, 8. << 49 //
50 8.337008e-01, 8.124961e-01, 7.925217e-01, 7. << 50 // Constant for calculation of mean free path
51 7.381233e-01, 7.214521e-01, 7.053634e-01, 6. << 51 //
52 6.600922e-01, 6.458793e-01, 6.320533e-01, 6. << 52
53 5.926459e-01, 5.801347e-01, 5.679103e-01, 5. << 53 const G4double
54 5.328395e-01, 5.216482e-01, 5.106904e-01, 4. << 54 G4SynchrotronRadiationInMat::fLambdaConst = std::sqrt(3.0)*electron_mass_c2/
55 4.791351e-01, 4.690316e-01, 4.591249e-01, 4. << 55 (2.5*fine_structure_const*eplus*c_light) ;
56 4.305320e-01, 4.213608e-01, 4.123623e-01, 4. << 56
57 3.863639e-01, 3.780179e-01, 3.698262e-01, 3. << 57 /////////////////////////////////////////////////////////////////////
58 3.461460e-01, 3.385411e-01, 3.310757e-01, 3. << 58 //
59 3.094921e-01, 3.025605e-01, 2.957566e-01, 2. << 59 // Constant for calculation of characterictic energy
60 2.760907e-01, 2.697773e-01, 2.635817e-01, 2. << 60 //
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 61
91 ////////////////////////////////////////////// << 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() ),
>> 131 GammaCutInKineticEnergy(0),
>> 132 ElectronCutInKineticEnergy(0),
>> 133 PositronCutInKineticEnergy(0),
>> 134 ParticleCutInKineticEnergy(0),
>> 135 fAlpha(0.0), fRootNumber(80),
>> 136 fVerboseLevel( verboseLevel )
103 { 137 {
104 G4TransportationManager* transportMgr = << 138 G4TransportationManager* transportMgr = G4TransportationManager::GetTransportationManager();
105 G4TransportationManager::GetTransportation <<
106 139
107 fFieldPropagator = transportMgr->GetPropagat 140 fFieldPropagator = transportMgr->GetPropagatorInField();
108 secID = G4PhysicsModelCatalog::GetModelID("m <<
109 SetProcessSubType(fSynchrotronRadiation); 141 SetProcessSubType(fSynchrotronRadiation);
110 CutInRange = GammaCutInKineticEnergyNow = El << 142 CutInRange = GammaCutInKineticEnergyNow = ElectronCutInKineticEnergyNow =
111 PositronCutInKineticEnergyNow = ParticleCu << 143 PositronCutInKineticEnergyNow = ParticleCutInKineticEnergyNow = fKsi =
112 fPsiGamma = fEta = fOrderAngleK = 0.0; << 144 fPsiGamma = fEta = fOrderAngleK = 0.0;
113 } 145 }
114 << 146
115 ////////////////////////////////////////////// 147 /////////////////////////////////////////////////////////////////////////
>> 148 //
116 // Destructor 149 // Destructor
117 G4SynchrotronRadiationInMat::~G4SynchrotronRad << 150 //
>> 151
>> 152 G4SynchrotronRadiationInMat::~G4SynchrotronRadiationInMat()
>> 153 {}
>> 154
118 155
119 G4bool G4SynchrotronRadiationInMat::IsApplicab << 156 G4bool
120 const G4ParticleDefinition& particle) << 157 G4SynchrotronRadiationInMat::IsApplicable( const G4ParticleDefinition& particle )
121 { 158 {
122 return ((&particle == (const G4ParticleDefin <<
123 (&particle == (const G4ParticleDefin <<
124 } <<
125 159
126 G4double G4SynchrotronRadiationInMat::GetLambd << 160 return ( ( &particle == (const G4ParticleDefinition *)theElectron ) ||
127 << 161 ( &particle == (const G4ParticleDefinition *)thePositron ) );
128 G4double G4SynchrotronRadiationInMat::GetEnerg <<
129 162
>> 163 }
>> 164
>> 165 /////////////////////////////// METHODS /////////////////////////////////
>> 166 //
>> 167 //
130 // Production of synchrotron X-ray photon 168 // Production of synchrotron X-ray photon
131 // Geant4 internal units. << 169 // GEANT4 internal units.
132 G4double G4SynchrotronRadiationInMat::GetMeanF << 170 //
133 const G4Track& trackData, G4double, G4ForceC << 171
>> 172
>> 173 G4double
>> 174 G4SynchrotronRadiationInMat::GetMeanFreePath( const G4Track& trackData,
>> 175 G4double,
>> 176 G4ForceCondition* condition)
134 { 177 {
135 // gives the MeanFreePath in GEANT4 internal 178 // gives the MeanFreePath in GEANT4 internal units
136 G4double MeanFreePath; 179 G4double MeanFreePath;
137 180
138 const G4DynamicParticle* aDynamicParticle = 181 const G4DynamicParticle* aDynamicParticle = trackData.GetDynamicParticle();
>> 182 // G4Material* aMaterial = trackData.GetMaterial();
139 183
140 *condition = NotForced; << 184 //G4bool isOutRange ;
>> 185
>> 186 *condition = NotForced ;
141 187
142 G4double gamma = << 188 G4double gamma = aDynamicParticle->GetTotalEnergy()/
143 aDynamicParticle->GetTotalEnergy() / aDyna << 189 aDynamicParticle->GetMass();
144 190
145 G4double particleCharge = aDynamicParticle-> 191 G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
146 192
147 G4double KineticEnergy = aDynamicParticle->G 193 G4double KineticEnergy = aDynamicParticle->GetKineticEnergy();
148 194
149 if(KineticEnergy < LowestKineticEnergy || ga << 195 if ( KineticEnergy < LowestKineticEnergy || gamma < 1.0e3 ) MeanFreePath = DBL_MAX;
150 MeanFreePath = DBL_MAX; <<
151 else 196 else
152 { 197 {
153 G4ThreeVector FieldValue; <<
154 const G4Field* pField = nullptr; <<
155 198
156 G4FieldManager* fieldMgr = nullptr; << 199 G4ThreeVector FieldValue;
157 G4bool fieldExertsForce = false; << 200 const G4Field* pField = 0;
>> 201
>> 202 G4FieldManager* fieldMgr=0;
>> 203 G4bool fieldExertsForce = false;
158 204
159 if((particleCharge != 0.0)) << 205 if( (particleCharge != 0.0) )
160 { 206 {
161 fieldMgr = << 207 fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
162 fFieldPropagator->FindAndSetFieldManag <<
163 208
164 if(fieldMgr != nullptr) << 209 if ( fieldMgr != 0 )
165 { 210 {
166 // If the field manager has no field, 211 // If the field manager has no field, there is no field !
167 fieldExertsForce = (fieldMgr->GetDetec << 212
>> 213 fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
168 } 214 }
169 } 215 }
170 if(fieldExertsForce) << 216 if ( fieldExertsForce )
171 { << 217 {
172 pField = fieldMgr->G << 218 pField = fieldMgr->GetDetectorField() ;
173 G4ThreeVector globPosition = trackData.G << 219 G4ThreeVector globPosition = trackData.GetPosition();
174 220
175 G4double globPosVec[4], FieldValueVec[6] << 221 G4double globPosVec[4], FieldValueVec[6];
176 222
177 globPosVec[0] = globPosition.x(); 223 globPosVec[0] = globPosition.x();
178 globPosVec[1] = globPosition.y(); 224 globPosVec[1] = globPosition.y();
179 globPosVec[2] = globPosition.z(); 225 globPosVec[2] = globPosition.z();
180 globPosVec[3] = trackData.GetGlobalTime( 226 globPosVec[3] = trackData.GetGlobalTime();
181 227
182 pField->GetFieldValue(globPosVec, FieldV << 228 pField->GetFieldValue( globPosVec, FieldValueVec );
183 229
184 FieldValue = << 230 FieldValue = G4ThreeVector( FieldValueVec[0],
185 G4ThreeVector(FieldValueVec[0], FieldV << 231 FieldValueVec[1],
>> 232 FieldValueVec[2] );
>> 233
>> 234
>> 235
>> 236 G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
>> 237 G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum) ;
>> 238 G4double perpB = unitMcrossB.mag() ;
>> 239 G4double beta = aDynamicParticle->GetTotalMomentum()/
>> 240 (aDynamicParticle->GetTotalEnergy() );
186 241
187 G4ThreeVector unitMomentum = aDynamicPar << 242 if( perpB > 0.0 ) MeanFreePath = fLambdaConst*beta/perpB;
188 G4ThreeVector unitMcrossB = FieldValue. << 243 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 } 244 }
198 else << 245 else MeanFreePath = DBL_MAX;
199 MeanFreePath = DBL_MAX; <<
200 } 246 }
201 if(fVerboseLevel > 0) 247 if(fVerboseLevel > 0)
202 { 248 {
203 G4cout << "G4SynchrotronRadiationInMat::Me << 249 G4cout<<"G4SynchrotronRadiationInMat::MeanFreePath = "<<MeanFreePath/m<<" m"<<G4endl;
204 << " m" << G4endl; <<
205 } 250 }
206 return MeanFreePath; << 251 return MeanFreePath;
207 } << 252 }
208 253
209 ////////////////////////////////////////////// 254 ////////////////////////////////////////////////////////////////////////////////
210 G4VParticleChange* G4SynchrotronRadiationInMat << 255 //
211 const G4Track& trackData, const G4Step& step << 256 //
>> 257
>> 258 G4VParticleChange*
>> 259 G4SynchrotronRadiationInMat::PostStepDoIt(const G4Track& trackData,
>> 260 const G4Step& stepData )
212 261
213 { 262 {
214 aParticleChange.Initialize(trackData); 263 aParticleChange.Initialize(trackData);
215 264
216 const G4DynamicParticle* aDynamicParticle = << 265 const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();
217 266
218 G4double gamma = << 267 G4double gamma = aDynamicParticle->GetTotalEnergy()/
219 aDynamicParticle->GetTotalEnergy() / (aDyn << 268 (aDynamicParticle->GetMass() );
220 269
221 if(gamma <= 1.0e3) << 270 if(gamma <= 1.0e3 )
222 { 271 {
223 return G4VDiscreteProcess::PostStepDoIt(tr << 272 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
224 } 273 }
225 G4double particleCharge = aDynamicParticle-> 274 G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
226 275
227 G4ThreeVector FieldValue; << 276 G4ThreeVector FieldValue;
228 const G4Field* pField = nullptr; << 277 const G4Field* pField = 0 ;
229 278
230 G4FieldManager* fieldMgr = nullptr; << 279 G4FieldManager* fieldMgr=0;
231 G4bool fieldExertsForce = false; << 280 G4bool fieldExertsForce = false;
232 281
233 if((particleCharge != 0.0)) << 282 if( (particleCharge != 0.0) )
234 { 283 {
235 fieldMgr = fFieldPropagator->FindAndSetFie << 284 fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
236 if(fieldMgr != nullptr) << 285 if ( fieldMgr != 0 )
237 { 286 {
238 // If the field manager has no field, th 287 // If the field manager has no field, there is no field !
239 fieldExertsForce = (fieldMgr->GetDetecto << 288
>> 289 fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
240 } 290 }
241 } 291 }
242 if(fieldExertsForce) << 292 if ( fieldExertsForce )
243 { 293 {
244 pField = fieldMgr->Get << 294 pField = fieldMgr->GetDetectorField() ;
245 G4ThreeVector globPosition = trackData.Get << 295 G4ThreeVector globPosition = trackData.GetPosition() ;
246 G4double globPosVec[4], FieldValueVec[6]; << 296 G4double globPosVec[4], FieldValueVec[6] ;
247 globPosVec[0] = globPosition.x(); << 297 globPosVec[0] = globPosition.x() ;
248 globPosVec[1] = globPosition.y(); << 298 globPosVec[1] = globPosition.y() ;
249 globPosVec[2] = globPosition.z(); << 299 globPosVec[2] = globPosition.z() ;
250 globPosVec[3] = trackData.GetGlobalTime(); 300 globPosVec[3] = trackData.GetGlobalTime();
251 301
252 pField->GetFieldValue(globPosVec, FieldVal << 302 pField->GetFieldValue( globPosVec, FieldValueVec ) ;
253 FieldValue = << 303 FieldValue = G4ThreeVector( FieldValueVec[0],
254 G4ThreeVector(FieldValueVec[0], FieldVal << 304 FieldValueVec[1],
255 << 305 FieldValueVec[2] );
256 G4ThreeVector unitMomentum = aDynamicParti << 306
257 G4ThreeVector unitMcrossB = FieldValue.cr << 307 G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
258 G4double perpB = unitMcrossB.m << 308 G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum);
>> 309 G4double perpB = unitMcrossB.mag() ;
259 if(perpB > 0.0) 310 if(perpB > 0.0)
260 { 311 {
261 // M-C of synchrotron photon energy 312 // M-C of synchrotron photon energy
262 G4double energyOfSR = GetRandomEnergySR( << 313
>> 314 G4double energyOfSR = GetRandomEnergySR(gamma,perpB);
263 315
264 if(fVerboseLevel > 0) 316 if(fVerboseLevel > 0)
265 { 317 {
266 G4cout << "SR photon energy = " << ene << 318 G4cout<<"SR photon energy = "<<energyOfSR/keV<<" keV"<<G4endl;
267 } 319 }
268 <<
269 // check against insufficient energy 320 // check against insufficient energy
270 if(energyOfSR <= 0.0) << 321
>> 322 if( energyOfSR <= 0.0 )
271 { 323 {
272 return G4VDiscreteProcess::PostStepDoI << 324 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
273 } 325 }
274 G4double kineticEnergy = aDynamicParticl 326 G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
275 G4ParticleMomentum particleDirection = << 327 G4ParticleMomentum
276 aDynamicParticle->GetMomentumDirection << 328 particleDirection = aDynamicParticle->GetMomentumDirection();
277 329
278 // M-C of its direction, simplified dipo 330 // M-C of its direction, simplified dipole busted approach
279 G4double cosTheta, sinTheta, fcos, beta; << 331
>> 332 // G4double Teta = G4UniformRand()/gamma ; // Very roughly
280 333
281 do << 334 G4double cosTheta, sinTheta, fcos, beta;
282 { <<
283 cosTheta = 1. - 2. * G4UniformRand(); <<
284 fcos = (1 + cosTheta * cosTheta) * <<
285 } <<
286 // Loop checking, 07-Aug-2015, Vladimir <<
287 while(fcos < G4UniformRand()); <<
288 335
289 beta = std::sqrt(1. - 1. / (gamma * gamm << 336 do
>> 337 {
>> 338 cosTheta = 1. - 2.*G4UniformRand();
>> 339 fcos = (1 + cosTheta*cosTheta)*0.5;
>> 340 }
>> 341 // Loop checking, 07-Aug-2015, Vladimir Ivanchenko
>> 342 while( fcos < G4UniformRand() );
290 343
291 cosTheta = (cosTheta + beta) / (1. + bet << 344 beta = std::sqrt(1. - 1./(gamma*gamma));
292 345
293 if(cosTheta > 1.) << 346 cosTheta = (cosTheta + beta)/(1. + beta*cosTheta);
294 cosTheta = 1.; <<
295 if(cosTheta < -1.) <<
296 cosTheta = -1.; <<
297 347
298 sinTheta = std::sqrt(1. - cosTheta * cos << 348 if( cosTheta > 1. ) cosTheta = 1.;
>> 349 if( cosTheta < -1. ) cosTheta = -1.;
299 350
300 G4double Phi = twopi * G4UniformRand(); << 351 sinTheta = std::sqrt(1. - cosTheta*cosTheta );
301 352
302 G4double dirx = sinTheta * std::cos(Phi) << 353 G4double Phi = twopi * G4UniformRand() ;
303 G4double diry = sinTheta * std::sin(Phi) <<
304 G4double dirz = cosTheta; <<
305 354
306 G4ThreeVector gammaDirection(dirx, diry, << 355 G4double dirx = sinTheta*std::cos(Phi) ,
307 gammaDirection.rotateUz(particleDirectio << 356 diry = sinTheta*std::sin(Phi) ,
>> 357 dirz = cosTheta;
308 358
>> 359 G4ThreeVector gammaDirection ( dirx, diry, dirz);
>> 360 gammaDirection.rotateUz(particleDirection);
>> 361
309 // polarization of new gamma 362 // polarization of new gamma
>> 363
>> 364 // G4double sx = std::cos(Teta)*std::cos(Phi);
>> 365 // G4double sy = std::cos(Teta)*std::sin(Phi);
>> 366 // G4double sz = -std::sin(Teta);
>> 367
310 G4ThreeVector gammaPolarization = FieldV 368 G4ThreeVector gammaPolarization = FieldValue.cross(gammaDirection);
311 gammaPolarization = gammaP << 369 gammaPolarization = gammaPolarization.unit();
>> 370
>> 371 // (sx, sy, sz);
>> 372 // gammaPolarization.rotateUz(particleDirection);
312 373
313 // create G4DynamicParticle object for t 374 // create G4DynamicParticle object for the SR photon
314 auto aGamma = << 375
315 new G4DynamicParticle(G4Gamma::Gamma() << 376 G4DynamicParticle* aGamma= new G4DynamicParticle ( G4Gamma::Gamma(),
316 aGamma->SetPolarization(gammaPolarizatio << 377 gammaDirection,
317 gammaPolarizatio << 378 energyOfSR );
>> 379 aGamma->SetPolarization( gammaPolarization.x(),
>> 380 gammaPolarization.y(),
>> 381 gammaPolarization.z() );
318 382
319 aParticleChange.SetNumberOfSecondaries(1 <<
320 383
321 // Update the incident particle << 384 aParticleChange.SetNumberOfSecondaries(1);
322 G4double newKinEnergy = kineticEnergy - << 385 aParticleChange.AddSecondary(aGamma);
323 386
324 if(newKinEnergy > 0.) << 387 // Update the incident particle
>> 388
>> 389 G4double newKinEnergy = kineticEnergy - energyOfSR ;
>> 390
>> 391 if (newKinEnergy > 0.)
325 { 392 {
326 aParticleChange.ProposeMomentumDirecti << 393 aParticleChange.ProposeMomentumDirection( particleDirection );
327 aParticleChange.ProposeEnergy(newKinEn << 394 aParticleChange.ProposeEnergy( newKinEnergy );
328 aParticleChange.ProposeLocalEnergyDepo << 395 aParticleChange.ProposeLocalEnergyDeposit (0.);
329 } << 396 }
330 else 397 else
331 { << 398 {
332 aParticleChange.ProposeEnergy(0.); << 399 aParticleChange.ProposeEnergy( 0. );
333 aParticleChange.ProposeLocalEnergyDepo << 400 aParticleChange.ProposeLocalEnergyDeposit (0.);
334 G4double charge = aDynamicParticle->Ge << 401 G4double charge = aDynamicParticle->GetDefinition()->GetPDGCharge();
335 if(charge < 0.) << 402 if (charge<0.)
336 { 403 {
337 aParticleChange.ProposeTrackStatus(f << 404 aParticleChange.ProposeTrackStatus(fStopAndKill) ;
338 } << 405 }
339 else << 406 else
340 { 407 {
341 aParticleChange.ProposeTrackStatus(f << 408 aParticleChange.ProposeTrackStatus(fStopButAlive) ;
342 } << 409 }
343 } << 410 }
344 << 411 }
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 412 else
353 { 413 {
354 return G4VDiscreteProcess::PostStepDoIt( << 414 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
355 } 415 }
356 } << 416 }
357 return G4VDiscreteProcess::PostStepDoIt(trac << 417 return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
358 } 418 }
359 419
360 G4double G4SynchrotronRadiationInMat::GetPhoto << 420
361 << 421 G4double
>> 422 G4SynchrotronRadiationInMat::GetPhotonEnergy( const G4Track& trackData,
>> 423 const G4Step& )
>> 424
362 { 425 {
363 G4int i; << 426 G4int i ;
364 G4double energyOfSR = -1.0; << 427 G4double energyOfSR = -1.0 ;
>> 428 //G4Material* aMaterial=trackData.GetMaterial() ;
365 429
366 const G4DynamicParticle* aDynamicParticle = << 430 const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();
367 431
368 G4double gamma = << 432 G4double gamma = aDynamicParticle->GetTotalEnergy()/
369 aDynamicParticle->GetTotalEnergy() / (aDyn << 433 (aDynamicParticle->GetMass() ) ;
370 434
371 G4double particleCharge = aDynamicParticle-> 435 G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
372 436
373 G4ThreeVector FieldValue; << 437 G4ThreeVector FieldValue;
374 const G4Field* pField = nullptr; << 438 const G4Field* pField = 0 ;
375 439
376 G4FieldManager* fieldMgr = nullptr; << 440 G4FieldManager* fieldMgr=0;
377 G4bool fieldExertsForce = false; << 441 G4bool fieldExertsForce = false;
378 442
379 if((particleCharge != 0.0)) << 443 if( (particleCharge != 0.0) )
380 { 444 {
381 fieldMgr = fFieldPropagator->FindAndSetFie << 445 fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
382 if(fieldMgr != nullptr) << 446 if ( fieldMgr != 0 )
383 { 447 {
384 // If the field manager has no field, th 448 // If the field manager has no field, there is no field !
385 fieldExertsForce = (fieldMgr->GetDetecto << 449
>> 450 fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
386 } 451 }
387 } 452 }
388 if(fieldExertsForce) << 453 if ( fieldExertsForce )
389 { << 454 {
390 pField = fieldMgr->Get << 455 pField = fieldMgr->GetDetectorField();
391 G4ThreeVector globPosition = trackData.Get << 456 G4ThreeVector globPosition = trackData.GetPosition();
392 G4double globPosVec[3], FieldValueVec[3]; << 457 G4double globPosVec[3], FieldValueVec[3];
393 458
394 globPosVec[0] = globPosition.x(); 459 globPosVec[0] = globPosition.x();
395 globPosVec[1] = globPosition.y(); 460 globPosVec[1] = globPosition.y();
396 globPosVec[2] = globPosition.z(); 461 globPosVec[2] = globPosition.z();
397 462
398 pField->GetFieldValue(globPosVec, FieldVal << 463 pField->GetFieldValue( globPosVec, FieldValueVec );
399 FieldValue = << 464 FieldValue = G4ThreeVector( FieldValueVec[0],
400 G4ThreeVector(FieldValueVec[0], FieldVal << 465 FieldValueVec[1],
401 << 466 FieldValueVec[2] );
402 G4ThreeVector unitMomentum = aDynamicParti << 467
403 G4ThreeVector unitMcrossB = FieldValue.cr << 468 G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
>> 469 G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum) ;
404 G4double perpB = unitMcrossB.m 470 G4double perpB = unitMcrossB.mag();
405 if(perpB > 0.0) << 471 if( perpB > 0.0 )
406 { 472 {
407 // M-C of synchrotron photon energy 473 // M-C of synchrotron photon energy
408 G4double random = G4UniformRand(); << 474
409 for(i = 0; i < 200; ++i) << 475 G4double random = G4UniformRand() ;
>> 476 for(i=0;i<200;i++)
410 { 477 {
411 if(random >= fIntegralProbabilityOfSR[ << 478 if(random >= fIntegralProbabilityOfSR[i]) break ;
412 break; <<
413 } 479 }
414 energyOfSR = 0.0001 * i * i * fEnergyCon << 480 energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;
415 481
416 // check against insufficient energy 482 // check against insufficient energy
>> 483
417 if(energyOfSR <= 0.0) 484 if(energyOfSR <= 0.0)
418 { 485 {
419 return -1.0; << 486 return -1.0 ;
420 } 487 }
421 } << 488 //G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
>> 489 //G4ParticleMomentum
>> 490 //particleDirection = aDynamicParticle->GetMomentumDirection();
>> 491
>> 492 // Gamma production cut in this material
>> 493 //G4double
>> 494 //gammaEnergyCut = (G4Gamma::GetCutsInEnergy())[aMaterial->GetIndex()];
>> 495
>> 496 // SR photon has energy more than the current material cut
>> 497 // M-C of its direction
>> 498
>> 499 //G4double Teta = G4UniformRand()/gamma ; // Very roughly
>> 500
>> 501 //G4double Phi = twopi * G4UniformRand() ;
>> 502 }
422 else 503 else
423 { 504 {
424 return -1.0; << 505 return -1.0 ;
425 } 506 }
426 } << 507 }
427 return energyOfSR; << 508 return energyOfSR ;
428 } 509 }
429 510
430 ////////////////////////////////////////////// 511 /////////////////////////////////////////////////////////////////////////////////
431 G4double G4SynchrotronRadiationInMat::GetRando << 512 //
432 << 513 //
>> 514
>> 515 G4double G4SynchrotronRadiationInMat::GetRandomEnergySR(G4double gamma, G4double perpB)
433 { 516 {
434 G4int i; << 517 G4int i, iMax;
435 static constexpr G4int iMax = 200; <<
436 G4double energySR, random, position; 518 G4double energySR, random, position;
437 519
>> 520 iMax = 200;
438 random = G4UniformRand(); 521 random = G4UniformRand();
439 522
440 for(i = 0; i < iMax; ++i) << 523 for( i = 0; i < iMax; i++ )
441 { 524 {
442 if(random >= fIntegralProbabilityOfSR[i]) << 525 if( random >= fIntegralProbabilityOfSR[i] ) break;
443 break; <<
444 } 526 }
445 if(i <= 0) << 527 if(i <= 0 ) position = G4UniformRand(); // 0.
446 position = G4UniformRand(); << 528 else if( i>= iMax) position = G4double(iMax);
447 else if(i >= iMax) << 529 else position = i + G4UniformRand(); // -1
448 position = G4double(iMax); << 530 //
449 else << 531 // it was in initial implementation:
450 position = i + G4UniformRand(); << 532 // energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;
451 533
452 energySR = << 534 energySR = 0.0001*position*position*fEnergyConst*gamma*gamma*perpB;
453 0.0001 * position * position * fEnergyCons <<
454 535
455 if(energySR < 0.) << 536 if( energySR < 0. ) energySR = 0.;
456 energySR = 0.; <<
457 537
458 return energySR; 538 return energySR;
459 } 539 }
460 540
461 ////////////////////////////////////////////// 541 /////////////////////////////////////////////////////////////////////////
462 G4double G4SynchrotronRadiationInMat::GetProbS << 542 //
>> 543 // return
>> 544
>> 545 G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt( G4double t)
463 { 546 {
464 G4double result, hypCos2, hypCos = std::cosh << 547 G4double result, hypCos2, hypCos=std::cosh(t);
465 548
466 hypCos2 = hypCos * hypCos; << 549 hypCos2 = hypCos*hypCos;
467 result = std::cosh(5. * t / 3.) * std::exp(t << 550 result = std::cosh(5.*t/3.)*std::exp(t-fKsi*hypCos); // fKsi > 0. !
468 result /= hypCos2; 551 result /= hypCos2;
469 return result; 552 return result;
470 } 553 }
471 554
472 ////////////////////////////////////////////// 555 ///////////////////////////////////////////////////////////////////////////
>> 556 //
473 // return the probability to emit SR photon wi 557 // return the probability to emit SR photon with relative energy
474 // energy/energy_c >= ksi 558 // energy/energy_c >= ksi
475 // for ksi <= 0. P = 1., however the method wo 559 // for ksi <= 0. P = 1., however the method works for ksi > 0 only!
476 G4double G4SynchrotronRadiationInMat::GetIntPr << 560
>> 561 G4double G4SynchrotronRadiationInMat::GetIntProbSR( G4double ksi)
477 { 562 {
478 if(ksi <= 0.) << 563 if (ksi <= 0.) return 1.0;
479 return 1.0; << 564 fKsi = ksi; // should be > 0. !
480 fKsi = ksi; // should be > 0. ! <<
481 G4int n; 565 G4int n;
482 G4double result, a; 566 G4double result, a;
483 567
484 a = fAlpha; // always = 0. << 568 a = fAlpha; // always = 0.
485 n = fRootNumber; // around default = 80 << 569 n = fRootNumber; // around default = 80
486 570
487 G4Integrator<G4SynchrotronRadiationInMat, << 571 G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
488 G4double (G4SynchrotronRadiatio <<
489 integral; <<
490 572
491 result = integral.Laguerre( << 573 result = integral.Laguerre(this,
492 this, &G4SynchrotronRadiationInMat::GetPro << 574 &G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt, a, n);
493 575
494 result *= 3. / 5. / pi; << 576 result *= 3./5./pi;
495 577
496 return result; 578 return result;
497 } 579 }
498 580
499 ////////////////////////////////////////////// 581 /////////////////////////////////////////////////////////////////////////
>> 582 //
500 // return an auxiliary function for K_5/3 inte 583 // return an auxiliary function for K_5/3 integral representation
501 G4double G4SynchrotronRadiationInMat::GetProbS <<
502 { <<
503 G4double result, hypCos = std::cosh(t); <<
504 584
505 result = std::cosh(5. * t / 3.) * std::exp(t << 585 G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy( G4double t)
>> 586 {
>> 587 G4double result, hypCos=std::cosh(t);
>> 588
>> 589 result = std::cosh(5.*t/3.)*std::exp(t - fKsi*hypCos); // fKsi > 0. !
506 result /= hypCos; 590 result /= hypCos;
507 return result; 591 return result;
508 } 592 }
509 593
510 ////////////////////////////////////////////// 594 ///////////////////////////////////////////////////////////////////////////
>> 595 //
511 // return the probability to emit SR photon en 596 // return the probability to emit SR photon energy with relative energy
512 // energy/energy_c >= ksi 597 // energy/energy_c >= ksi
513 // for ksi <= 0. P = 1., however the method wo 598 // for ksi <= 0. P = 1., however the method works for ksi > 0 only!
514 G4double G4SynchrotronRadiationInMat::GetEnerg << 599
>> 600 G4double G4SynchrotronRadiationInMat::GetEnergyProbSR( G4double ksi)
515 { 601 {
516 if(ksi <= 0.) << 602 if (ksi <= 0.) return 1.0;
517 return 1.0; << 603 fKsi = ksi; // should be > 0. !
518 fKsi = ksi; // should be > 0. ! <<
519 G4int n; 604 G4int n;
520 G4double result, a; 605 G4double result, a;
521 606
522 a = fAlpha; // always = 0. << 607 a = fAlpha; // always = 0.
523 n = fRootNumber; // around default = 80 << 608 n = fRootNumber; // around default = 80
524 609
525 G4Integrator<G4SynchrotronRadiationInMat, << 610 G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
526 G4double (G4SynchrotronRadiatio <<
527 integral; <<
528 611
529 result = integral.Laguerre( << 612 result = integral.Laguerre(this,
530 this, &G4SynchrotronRadiationInMat::GetPro << 613 &G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy, a, n);
531 614
532 result *= 9. * std::sqrt(3.) * ksi / 8. / pi << 615 result *= 9.*std::sqrt(3.)*ksi/8./pi;
533 616
534 return result; 617 return result;
535 } 618 }
536 619
537 ////////////////////////////////////////////// 620 /////////////////////////////////////////////////////////////////////////////
538 G4double G4SynchrotronRadiationInMat::GetInteg << 621 //
539 { << 622 //
540 G4double result, hypCos = std::cosh(t); <<
541 623
542 result = << 624 G4double G4SynchrotronRadiationInMat::GetIntegrandForAngleK( G4double t)
543 std::cosh(fOrderAngleK * t) * std::exp(t - << 625 {
>> 626 G4double result, hypCos=std::cosh(t);
>> 627
>> 628 result = std::cosh(fOrderAngleK*t)*std::exp(t - fEta*hypCos); // fEta > 0. !
544 result /= hypCos; 629 result /= hypCos;
545 return result; 630 return result;
546 } 631 }
547 632
548 ////////////////////////////////////////////// 633 //////////////////////////////////////////////////////////////////////////
>> 634 //
549 // Return K 1/3 or 2/3 for angular distributio 635 // Return K 1/3 or 2/3 for angular distribution
550 G4double G4SynchrotronRadiationInMat::GetAngle << 636
>> 637 G4double G4SynchrotronRadiationInMat::GetAngleK( G4double eta)
551 { 638 {
552 fEta = eta; // should be > 0. ! << 639 fEta = eta; // should be > 0. !
553 G4int n; 640 G4int n;
554 G4double result, a; 641 G4double result, a;
555 642
556 a = fAlpha; // always = 0. << 643 a = fAlpha; // always = 0.
557 n = fRootNumber; // around default = 80 << 644 n = fRootNumber; // around default = 80
558 645
559 G4Integrator<G4SynchrotronRadiationInMat, << 646 G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
560 G4double (G4SynchrotronRadiatio <<
561 integral; <<
562 647
563 result = integral.Laguerre( << 648 result = integral.Laguerre(this,
564 this, &G4SynchrotronRadiationInMat::GetInt << 649 &G4SynchrotronRadiationInMat::GetIntegrandForAngleK, a, n);
565 650
566 return result; 651 return result;
567 } 652 }
568 653
569 ////////////////////////////////////////////// 654 /////////////////////////////////////////////////////////////////////////
>> 655 //
570 // Relative angle diff distribution for given 656 // 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: <<
577 657
578 fOrderAngleK = 1. / 3.; << 658 G4double G4SynchrotronRadiationInMat::GetAngleNumberAtGammaKsi( G4double gpsi)
579 funK = GetAngleK(fEta); << 659 {
580 funK2 = funK * funK; << 660 G4double result, funK, funK2, gpsi2 = gpsi*gpsi;
581 661
582 result = gpsi2 * funK2 / (1. + gpsi2); << 662 fPsiGamma = gpsi;
>> 663 fEta = 0.5*fKsi*(1 + gpsi2)*std::sqrt(1 + gpsi2);
>> 664
>> 665 fOrderAngleK = 1./3.;
>> 666 funK = GetAngleK(fEta);
>> 667 funK2 = funK*funK;
>> 668
>> 669 result = gpsi2*funK2/(1 + gpsi2);
>> 670
>> 671 fOrderAngleK = 2./3.;
>> 672 funK = GetAngleK(fEta);
>> 673 funK2 = funK*funK;
>> 674
>> 675 result += funK2;
>> 676 result *= (1 + gpsi2)*fKsi;
>> 677
>> 678 return result;
>> 679 }
583 680
584 fOrderAngleK = 2. / 3.; <<
585 funK = GetAngleK(fEta); <<
586 funK2 = funK * funK; <<
587 681
588 result += funK2; << 682 ///////////////////// end of G4SynchrotronRadiationInMat.cc
589 result *= (1. + gpsi2) * fKsi; <<
590 683
591 return result; <<
592 } <<
593 684