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>> 26 // $Id: G4DiffuseElastic.cc 93440 2015-10-22 14:11:41Z gcosmo $
26 // 27 //
27 // 28 //
28 // Physics model class G4DiffuseElastic 29 // Physics model class G4DiffuseElastic
29 // 30 //
30 // 31 //
31 // G4 Model: optical diffuse elastic scatterin 32 // G4 Model: optical diffuse elastic scattering with 4-momentum balance
32 // 33 //
33 // 24-May-07 V. Grichine 34 // 24-May-07 V. Grichine
34 // 35 //
35 // 21.10.15 V. Grichine 36 // 21.10.15 V. Grichine
36 // Bug fixed in BuildAngleTable, i 37 // Bug fixed in BuildAngleTable, improving accuracy for
37 // angle bins at high energies > 5 38 // angle bins at high energies > 50 GeV for pions.
38 // 39 //
39 40
40 #include "G4DiffuseElastic.hh" 41 #include "G4DiffuseElastic.hh"
41 #include "G4ParticleTable.hh" 42 #include "G4ParticleTable.hh"
42 #include "G4ParticleDefinition.hh" 43 #include "G4ParticleDefinition.hh"
43 #include "G4IonTable.hh" 44 #include "G4IonTable.hh"
44 #include "G4NucleiProperties.hh" 45 #include "G4NucleiProperties.hh"
45 46
46 #include "Randomize.hh" 47 #include "Randomize.hh"
47 #include "G4Integrator.hh" 48 #include "G4Integrator.hh"
48 #include "globals.hh" 49 #include "globals.hh"
49 #include "G4PhysicalConstants.hh" 50 #include "G4PhysicalConstants.hh"
50 #include "G4SystemOfUnits.hh" 51 #include "G4SystemOfUnits.hh"
51 52
52 #include "G4Proton.hh" 53 #include "G4Proton.hh"
53 #include "G4Neutron.hh" 54 #include "G4Neutron.hh"
54 #include "G4Deuteron.hh" 55 #include "G4Deuteron.hh"
55 #include "G4Alpha.hh" 56 #include "G4Alpha.hh"
56 #include "G4PionPlus.hh" 57 #include "G4PionPlus.hh"
57 #include "G4PionMinus.hh" 58 #include "G4PionMinus.hh"
58 59
59 #include "G4Element.hh" 60 #include "G4Element.hh"
60 #include "G4ElementTable.hh" 61 #include "G4ElementTable.hh"
61 #include "G4NistManager.hh" 62 #include "G4NistManager.hh"
62 #include "G4PhysicsTable.hh" 63 #include "G4PhysicsTable.hh"
63 #include "G4PhysicsLogVector.hh" 64 #include "G4PhysicsLogVector.hh"
64 #include "G4PhysicsFreeVector.hh" 65 #include "G4PhysicsFreeVector.hh"
65 66
66 #include "G4Exp.hh" 67 #include "G4Exp.hh"
67 68
68 #include "G4HadronicParameters.hh" <<
69 <<
70 ////////////////////////////////////////////// 69 /////////////////////////////////////////////////////////////////////////
71 // 70 //
72 // Test Constructor. Just to check xsc 71 // Test Constructor. Just to check xsc
73 72
74 73
75 G4DiffuseElastic::G4DiffuseElastic() 74 G4DiffuseElastic::G4DiffuseElastic()
76 : G4HadronElastic("DiffuseElastic"), fPartic 75 : G4HadronElastic("DiffuseElastic"), fParticle(0)
77 { 76 {
78 SetMinEnergy( 0.01*MeV ); << 77 SetMinEnergy( 0.01*MeV ); // 0.01*GeV );
79 SetMaxEnergy( G4HadronicParameters::Instance << 78 SetMaxEnergy( 1.*TeV );
80 79
81 verboseLevel = 0; 80 verboseLevel = 0;
82 lowEnergyRecoilLimit = 100.*keV; 81 lowEnergyRecoilLimit = 100.*keV;
83 lowEnergyLimitQ = 0.0*GeV; 82 lowEnergyLimitQ = 0.0*GeV;
84 lowEnergyLimitHE = 0.0*GeV; 83 lowEnergyLimitHE = 0.0*GeV;
85 lowestEnergyLimit = 0.0*keV; 84 lowestEnergyLimit = 0.0*keV;
86 plabLowLimit = 20.0*MeV; 85 plabLowLimit = 20.0*MeV;
87 86
88 theProton = G4Proton::Proton(); 87 theProton = G4Proton::Proton();
89 theNeutron = G4Neutron::Neutron(); 88 theNeutron = G4Neutron::Neutron();
90 theDeuteron = G4Deuteron::Deuteron(); 89 theDeuteron = G4Deuteron::Deuteron();
91 theAlpha = G4Alpha::Alpha(); 90 theAlpha = G4Alpha::Alpha();
92 thePionPlus = G4PionPlus::PionPlus(); 91 thePionPlus = G4PionPlus::PionPlus();
93 thePionMinus = G4PionMinus::PionMinus(); 92 thePionMinus = G4PionMinus::PionMinus();
94 93
95 fEnergyBin = 300; // Increased from the ori << 94 fEnergyBin = 200;
96 fAngleBin = 200; 95 fAngleBin = 200;
97 96
98 fEnergyVector = new G4PhysicsLogVector( the 97 fEnergyVector = new G4PhysicsLogVector( theMinEnergy, theMaxEnergy, fEnergyBin );
99 98
100 fAngleTable = 0; 99 fAngleTable = 0;
101 100
102 fParticle = 0; 101 fParticle = 0;
103 fWaveVector = 0.; 102 fWaveVector = 0.;
104 fAtomicWeight = 0.; 103 fAtomicWeight = 0.;
105 fAtomicNumber = 0.; 104 fAtomicNumber = 0.;
106 fNuclearRadius = 0.; 105 fNuclearRadius = 0.;
107 fBeta = 0.; 106 fBeta = 0.;
108 fZommerfeld = 0.; 107 fZommerfeld = 0.;
109 fAm = 0.; 108 fAm = 0.;
110 fAddCoulomb = false; 109 fAddCoulomb = false;
111 } 110 }
112 111
113 ////////////////////////////////////////////// 112 //////////////////////////////////////////////////////////////////////////////
114 // 113 //
115 // Destructor 114 // Destructor
116 115
117 G4DiffuseElastic::~G4DiffuseElastic() 116 G4DiffuseElastic::~G4DiffuseElastic()
118 { 117 {
119 if ( fEnergyVector ) 118 if ( fEnergyVector )
120 { 119 {
121 delete fEnergyVector; 120 delete fEnergyVector;
122 fEnergyVector = 0; 121 fEnergyVector = 0;
123 } 122 }
124 for ( std::vector<G4PhysicsTable*>::iterator 123 for ( std::vector<G4PhysicsTable*>::iterator it = fAngleBank.begin();
125 it != fAngleBank.end(); ++it ) 124 it != fAngleBank.end(); ++it )
126 { 125 {
127 if ( (*it) ) (*it)->clearAndDestroy(); 126 if ( (*it) ) (*it)->clearAndDestroy();
128 127
129 delete *it; 128 delete *it;
130 *it = 0; 129 *it = 0;
131 } 130 }
132 fAngleTable = 0; 131 fAngleTable = 0;
133 } 132 }
134 133
135 ////////////////////////////////////////////// 134 //////////////////////////////////////////////////////////////////////////////
136 // 135 //
137 // Initialisation for given particle using ele 136 // Initialisation for given particle using element table of application
138 137
139 void G4DiffuseElastic::Initialise() 138 void G4DiffuseElastic::Initialise()
140 { 139 {
141 140
142 // fEnergyVector = new G4PhysicsLogVector( t 141 // fEnergyVector = new G4PhysicsLogVector( theMinEnergy, theMaxEnergy, fEnergyBin );
143 142
144 const G4ElementTable* theElementTable = G4El 143 const G4ElementTable* theElementTable = G4Element::GetElementTable();
145 144
146 std::size_t jEl, numOfEl = G4Element::GetNum << 145 size_t jEl, numOfEl = G4Element::GetNumberOfElements();
147 146
148 for( jEl = 0; jEl < numOfEl; ++jEl) // appli 147 for( jEl = 0; jEl < numOfEl; ++jEl) // application element loop
149 { 148 {
150 fAtomicNumber = (*theElementTable)[jEl]->G 149 fAtomicNumber = (*theElementTable)[jEl]->GetZ(); // atomic number
151 fAtomicWeight = G4NistManager::Instance()- 150 fAtomicWeight = G4NistManager::Instance()->GetAtomicMassAmu( static_cast< G4int >( fAtomicNumber ) );
152 fNuclearRadius = CalculateNuclearRad(fAtom 151 fNuclearRadius = CalculateNuclearRad(fAtomicWeight);
153 152
154 if( verboseLevel > 0 ) 153 if( verboseLevel > 0 )
155 { 154 {
156 G4cout<<"G4DiffuseElastic::Initialise() 155 G4cout<<"G4DiffuseElastic::Initialise() the element: "
157 <<(*theElementTable)[jEl]->GetName()<<G4 156 <<(*theElementTable)[jEl]->GetName()<<G4endl;
158 } 157 }
159 fElementNumberVector.push_back(fAtomicNumb 158 fElementNumberVector.push_back(fAtomicNumber);
160 fElementNameVector.push_back((*theElementT 159 fElementNameVector.push_back((*theElementTable)[jEl]->GetName());
161 160
162 BuildAngleTable(); 161 BuildAngleTable();
163 fAngleBank.push_back(fAngleTable); 162 fAngleBank.push_back(fAngleTable);
164 } 163 }
165 return; 164 return;
166 } 165 }
167 166
168 ////////////////////////////////////////////// 167 ////////////////////////////////////////////////////////////////////////////
169 // 168 //
170 // return differential elastic cross section d 169 // return differential elastic cross section d(sigma)/d(omega)
171 170
172 G4double 171 G4double
173 G4DiffuseElastic::GetDiffuseElasticXsc( const 172 G4DiffuseElastic::GetDiffuseElasticXsc( const G4ParticleDefinition* particle,
174 G4doub 173 G4double theta,
175 G4double momentum, 174 G4double momentum,
176 G4doub 175 G4double A )
177 { 176 {
178 fParticle = particle; 177 fParticle = particle;
179 fWaveVector = momentum/hbarc; 178 fWaveVector = momentum/hbarc;
180 fAtomicWeight = A; 179 fAtomicWeight = A;
181 fAddCoulomb = false; 180 fAddCoulomb = false;
182 fNuclearRadius = CalculateNuclearRad(A); 181 fNuclearRadius = CalculateNuclearRad(A);
183 182
184 G4double sigma = fNuclearRadius*fNuclearRadi 183 G4double sigma = fNuclearRadius*fNuclearRadius*GetDiffElasticProb(theta);
185 184
186 return sigma; 185 return sigma;
187 } 186 }
188 187
189 ////////////////////////////////////////////// 188 ////////////////////////////////////////////////////////////////////////////
190 // 189 //
191 // return invariant differential elastic cross 190 // return invariant differential elastic cross section d(sigma)/d(tMand)
192 191
193 G4double 192 G4double
194 G4DiffuseElastic::GetInvElasticXsc( const G4Pa 193 G4DiffuseElastic::GetInvElasticXsc( const G4ParticleDefinition* particle,
195 G4doub 194 G4double tMand,
196 G4double plab, 195 G4double plab,
197 G4doub 196 G4double A, G4double Z )
198 { 197 {
199 G4double m1 = particle->GetPDGMass(); 198 G4double m1 = particle->GetPDGMass();
200 G4LorentzVector lv1(0.,0.,plab,std::sqrt(pla 199 G4LorentzVector lv1(0.,0.,plab,std::sqrt(plab*plab+m1*m1));
201 200
202 G4int iZ = static_cast<G4int>(Z+0.5); 201 G4int iZ = static_cast<G4int>(Z+0.5);
203 G4int iA = static_cast<G4int>(A+0.5); 202 G4int iA = static_cast<G4int>(A+0.5);
204 G4ParticleDefinition * theDef = 0; 203 G4ParticleDefinition * theDef = 0;
205 204
206 if (iZ == 1 && iA == 1) theDef = thePro 205 if (iZ == 1 && iA == 1) theDef = theProton;
207 else if (iZ == 1 && iA == 2) theDef = theDeu 206 else if (iZ == 1 && iA == 2) theDef = theDeuteron;
208 else if (iZ == 1 && iA == 3) theDef = G4Trit 207 else if (iZ == 1 && iA == 3) theDef = G4Triton::Triton();
209 else if (iZ == 2 && iA == 3) theDef = G4He3: 208 else if (iZ == 2 && iA == 3) theDef = G4He3::He3();
210 else if (iZ == 2 && iA == 4) theDef = theAlp 209 else if (iZ == 2 && iA == 4) theDef = theAlpha;
211 else theDef = G4ParticleTable::GetParticleTa 210 else theDef = G4ParticleTable::GetParticleTable()->GetIonTable()->GetIon(iZ,iA,0);
212 211
213 G4double tmass = theDef->GetPDGMass(); 212 G4double tmass = theDef->GetPDGMass();
214 213
215 G4LorentzVector lv(0.0,0.0,0.0,tmass); 214 G4LorentzVector lv(0.0,0.0,0.0,tmass);
216 lv += lv1; 215 lv += lv1;
217 216
218 G4ThreeVector bst = lv.boostVector(); 217 G4ThreeVector bst = lv.boostVector();
219 lv1.boost(-bst); 218 lv1.boost(-bst);
220 219
221 G4ThreeVector p1 = lv1.vect(); 220 G4ThreeVector p1 = lv1.vect();
222 G4double ptot = p1.mag(); 221 G4double ptot = p1.mag();
223 G4double ptot2 = ptot*ptot; 222 G4double ptot2 = ptot*ptot;
224 G4double cost = 1 - 0.5*std::fabs(tMand)/pto 223 G4double cost = 1 - 0.5*std::fabs(tMand)/ptot2;
225 224
226 if( cost >= 1.0 ) cost = 1.0; 225 if( cost >= 1.0 ) cost = 1.0;
227 else if( cost <= -1.0) cost = -1.0; 226 else if( cost <= -1.0) cost = -1.0;
228 227
229 G4double thetaCMS = std::acos(cost); 228 G4double thetaCMS = std::acos(cost);
230 229
231 G4double sigma = GetDiffuseElasticXsc( parti 230 G4double sigma = GetDiffuseElasticXsc( particle, thetaCMS, ptot, A);
232 231
233 sigma *= pi/ptot2; 232 sigma *= pi/ptot2;
234 233
235 return sigma; 234 return sigma;
236 } 235 }
237 236
238 ////////////////////////////////////////////// 237 ////////////////////////////////////////////////////////////////////////////
239 // 238 //
240 // return differential elastic cross section d 239 // return differential elastic cross section d(sigma)/d(omega) with Coulomb
241 // correction 240 // correction
242 241
243 G4double 242 G4double
244 G4DiffuseElastic::GetDiffuseElasticSumXsc( con 243 G4DiffuseElastic::GetDiffuseElasticSumXsc( const G4ParticleDefinition* particle,
245 G4doub 244 G4double theta,
246 G4double momentum, 245 G4double momentum,
247 G4doub 246 G4double A, G4double Z )
248 { 247 {
249 fParticle = particle; 248 fParticle = particle;
250 fWaveVector = momentum/hbarc; 249 fWaveVector = momentum/hbarc;
251 fAtomicWeight = A; 250 fAtomicWeight = A;
252 fAtomicNumber = Z; 251 fAtomicNumber = Z;
253 fNuclearRadius = CalculateNuclearRad(A); 252 fNuclearRadius = CalculateNuclearRad(A);
254 fAddCoulomb = false; 253 fAddCoulomb = false;
255 254
256 G4double z = particle->GetPDGCharge(); 255 G4double z = particle->GetPDGCharge();
257 256
258 G4double kRt = fWaveVector*fNuclearRadius* 257 G4double kRt = fWaveVector*fNuclearRadius*theta;
259 G4double kRtC = 1.9; 258 G4double kRtC = 1.9;
260 259
261 if( z && (kRt > kRtC) ) 260 if( z && (kRt > kRtC) )
262 { 261 {
263 fAddCoulomb = true; 262 fAddCoulomb = true;
264 fBeta = CalculateParticleBeta( parti 263 fBeta = CalculateParticleBeta( particle, momentum);
265 fZommerfeld = CalculateZommerfeld( fBeta, 264 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
266 fAm = CalculateAm( momentum, fZomm 265 fAm = CalculateAm( momentum, fZommerfeld, fAtomicNumber);
267 } 266 }
268 G4double sigma = fNuclearRadius*fNuclearRadi 267 G4double sigma = fNuclearRadius*fNuclearRadius*GetDiffElasticSumProb(theta);
269 268
270 return sigma; 269 return sigma;
271 } 270 }
272 271
273 ////////////////////////////////////////////// 272 ////////////////////////////////////////////////////////////////////////////
274 // 273 //
275 // return invariant differential elastic cross 274 // return invariant differential elastic cross section d(sigma)/d(tMand) with Coulomb
276 // correction 275 // correction
277 276
278 G4double 277 G4double
279 G4DiffuseElastic::GetInvElasticSumXsc( const G 278 G4DiffuseElastic::GetInvElasticSumXsc( const G4ParticleDefinition* particle,
280 G4doub 279 G4double tMand,
281 G4double plab, 280 G4double plab,
282 G4doub 281 G4double A, G4double Z )
283 { 282 {
284 G4double m1 = particle->GetPDGMass(); 283 G4double m1 = particle->GetPDGMass();
285 284
286 G4LorentzVector lv1(0.,0.,plab,std::sqrt(pla 285 G4LorentzVector lv1(0.,0.,plab,std::sqrt(plab*plab+m1*m1));
287 286
288 G4int iZ = static_cast<G4int>(Z+0.5); 287 G4int iZ = static_cast<G4int>(Z+0.5);
289 G4int iA = static_cast<G4int>(A+0.5); 288 G4int iA = static_cast<G4int>(A+0.5);
290 289
291 G4ParticleDefinition* theDef = 0; 290 G4ParticleDefinition* theDef = 0;
292 291
293 if (iZ == 1 && iA == 1) theDef = thePro 292 if (iZ == 1 && iA == 1) theDef = theProton;
294 else if (iZ == 1 && iA == 2) theDef = theDeu 293 else if (iZ == 1 && iA == 2) theDef = theDeuteron;
295 else if (iZ == 1 && iA == 3) theDef = G4Trit 294 else if (iZ == 1 && iA == 3) theDef = G4Triton::Triton();
296 else if (iZ == 2 && iA == 3) theDef = G4He3: 295 else if (iZ == 2 && iA == 3) theDef = G4He3::He3();
297 else if (iZ == 2 && iA == 4) theDef = theAlp 296 else if (iZ == 2 && iA == 4) theDef = theAlpha;
298 else theDef = G4ParticleTable::GetParticleTa 297 else theDef = G4ParticleTable::GetParticleTable()->GetIonTable()->GetIon(iZ,iA,0);
299 298
300 G4double tmass = theDef->GetPDGMass(); 299 G4double tmass = theDef->GetPDGMass();
301 300
302 G4LorentzVector lv(0.0,0.0,0.0,tmass); 301 G4LorentzVector lv(0.0,0.0,0.0,tmass);
303 lv += lv1; 302 lv += lv1;
304 303
305 G4ThreeVector bst = lv.boostVector(); 304 G4ThreeVector bst = lv.boostVector();
306 lv1.boost(-bst); 305 lv1.boost(-bst);
307 306
308 G4ThreeVector p1 = lv1.vect(); 307 G4ThreeVector p1 = lv1.vect();
309 G4double ptot = p1.mag(); 308 G4double ptot = p1.mag();
310 G4double ptot2 = ptot*ptot; 309 G4double ptot2 = ptot*ptot;
311 G4double cost = 1 - 0.5*std::fabs(tMand)/ 310 G4double cost = 1 - 0.5*std::fabs(tMand)/ptot2;
312 311
313 if( cost >= 1.0 ) cost = 1.0; 312 if( cost >= 1.0 ) cost = 1.0;
314 else if( cost <= -1.0) cost = -1.0; 313 else if( cost <= -1.0) cost = -1.0;
315 314
316 G4double thetaCMS = std::acos(cost); 315 G4double thetaCMS = std::acos(cost);
317 316
318 G4double sigma = GetDiffuseElasticSumXsc( pa 317 G4double sigma = GetDiffuseElasticSumXsc( particle, thetaCMS, ptot, A, Z );
319 318
320 sigma *= pi/ptot2; 319 sigma *= pi/ptot2;
321 320
322 return sigma; 321 return sigma;
323 } 322 }
324 323
325 ////////////////////////////////////////////// 324 ////////////////////////////////////////////////////////////////////////////
326 // 325 //
327 // return invariant differential elastic cross 326 // return invariant differential elastic cross section d(sigma)/d(tMand) with Coulomb
328 // correction 327 // correction
329 328
330 G4double 329 G4double
331 G4DiffuseElastic::GetInvCoulombElasticXsc( con 330 G4DiffuseElastic::GetInvCoulombElasticXsc( const G4ParticleDefinition* particle,
332 G4doub 331 G4double tMand,
333 G4double plab, 332 G4double plab,
334 G4doub 333 G4double A, G4double Z )
335 { 334 {
336 G4double m1 = particle->GetPDGMass(); 335 G4double m1 = particle->GetPDGMass();
337 G4LorentzVector lv1(0.,0.,plab,std::sqrt(pla 336 G4LorentzVector lv1(0.,0.,plab,std::sqrt(plab*plab+m1*m1));
338 337
339 G4int iZ = static_cast<G4int>(Z+0.5); 338 G4int iZ = static_cast<G4int>(Z+0.5);
340 G4int iA = static_cast<G4int>(A+0.5); 339 G4int iA = static_cast<G4int>(A+0.5);
341 G4ParticleDefinition * theDef = 0; 340 G4ParticleDefinition * theDef = 0;
342 341
343 if (iZ == 1 && iA == 1) theDef = thePro 342 if (iZ == 1 && iA == 1) theDef = theProton;
344 else if (iZ == 1 && iA == 2) theDef = theDeu 343 else if (iZ == 1 && iA == 2) theDef = theDeuteron;
345 else if (iZ == 1 && iA == 3) theDef = G4Trit 344 else if (iZ == 1 && iA == 3) theDef = G4Triton::Triton();
346 else if (iZ == 2 && iA == 3) theDef = G4He3: 345 else if (iZ == 2 && iA == 3) theDef = G4He3::He3();
347 else if (iZ == 2 && iA == 4) theDef = theAlp 346 else if (iZ == 2 && iA == 4) theDef = theAlpha;
348 else theDef = G4ParticleTable::GetParticleTa 347 else theDef = G4ParticleTable::GetParticleTable()->GetIonTable()->GetIon(iZ,iA,0);
349 348
350 G4double tmass = theDef->GetPDGMass(); 349 G4double tmass = theDef->GetPDGMass();
351 350
352 G4LorentzVector lv(0.0,0.0,0.0,tmass); 351 G4LorentzVector lv(0.0,0.0,0.0,tmass);
353 lv += lv1; 352 lv += lv1;
354 353
355 G4ThreeVector bst = lv.boostVector(); 354 G4ThreeVector bst = lv.boostVector();
356 lv1.boost(-bst); 355 lv1.boost(-bst);
357 356
358 G4ThreeVector p1 = lv1.vect(); 357 G4ThreeVector p1 = lv1.vect();
359 G4double ptot = p1.mag(); 358 G4double ptot = p1.mag();
360 G4double ptot2 = ptot*ptot; 359 G4double ptot2 = ptot*ptot;
361 G4double cost = 1 - 0.5*std::fabs(tMand)/pto 360 G4double cost = 1 - 0.5*std::fabs(tMand)/ptot2;
362 361
363 if( cost >= 1.0 ) cost = 1.0; 362 if( cost >= 1.0 ) cost = 1.0;
364 else if( cost <= -1.0) cost = -1.0; 363 else if( cost <= -1.0) cost = -1.0;
365 364
366 G4double thetaCMS = std::acos(cost); 365 G4double thetaCMS = std::acos(cost);
367 366
368 G4double sigma = GetCoulombElasticXsc( parti 367 G4double sigma = GetCoulombElasticXsc( particle, thetaCMS, ptot, Z );
369 368
370 sigma *= pi/ptot2; 369 sigma *= pi/ptot2;
371 370
372 return sigma; 371 return sigma;
373 } 372 }
374 373
375 ////////////////////////////////////////////// 374 ////////////////////////////////////////////////////////////////////////////
376 // 375 //
377 // return differential elastic probability d(p 376 // return differential elastic probability d(probability)/d(omega)
378 377
379 G4double 378 G4double
380 G4DiffuseElastic::GetDiffElasticProb( // G4Par 379 G4DiffuseElastic::GetDiffElasticProb( // G4ParticleDefinition* particle,
381 G4doub 380 G4double theta
382 // G4double momentum, 381 // G4double momentum,
383 // G4double A 382 // G4double A
384 ) 383 )
385 { 384 {
386 G4double sigma, bzero, bzero2, bonebyarg, bo 385 G4double sigma, bzero, bzero2, bonebyarg, bonebyarg2, damp, damp2;
387 G4double delta, diffuse, gamma; 386 G4double delta, diffuse, gamma;
388 G4double e1, e2, bone, bone2; 387 G4double e1, e2, bone, bone2;
389 388
390 // G4double wavek = momentum/hbarc; // wave 389 // G4double wavek = momentum/hbarc; // wave vector
391 // G4double r0 = 1.08*fermi; 390 // G4double r0 = 1.08*fermi;
392 // G4double rad = r0*G4Pow::GetInstance()- 391 // G4double rad = r0*G4Pow::GetInstance()->A13(A);
393 392
394 if (fParticle == theProton) 393 if (fParticle == theProton)
395 { 394 {
396 diffuse = 0.63*fermi; 395 diffuse = 0.63*fermi;
397 gamma = 0.3*fermi; 396 gamma = 0.3*fermi;
398 delta = 0.1*fermi*fermi; 397 delta = 0.1*fermi*fermi;
399 e1 = 0.3*fermi; 398 e1 = 0.3*fermi;
400 e2 = 0.35*fermi; 399 e2 = 0.35*fermi;
401 } 400 }
402 else if (fParticle == theNeutron) 401 else if (fParticle == theNeutron)
403 { 402 {
404 diffuse = 0.63*fermi; // 1.63*fermi; // 403 diffuse = 0.63*fermi; // 1.63*fermi; //
405 G4double k0 = 1*GeV/hbarc; 404 G4double k0 = 1*GeV/hbarc;
406 diffuse *= k0/fWaveVector; 405 diffuse *= k0/fWaveVector;
407 406
408 gamma = 0.3*fermi; 407 gamma = 0.3*fermi;
409 delta = 0.1*fermi*fermi; 408 delta = 0.1*fermi*fermi;
410 e1 = 0.3*fermi; 409 e1 = 0.3*fermi;
411 e2 = 0.35*fermi; 410 e2 = 0.35*fermi;
412 } 411 }
413 else // as proton, if were not defined 412 else // as proton, if were not defined
414 { 413 {
415 diffuse = 0.63*fermi; 414 diffuse = 0.63*fermi;
416 gamma = 0.3*fermi; 415 gamma = 0.3*fermi;
417 delta = 0.1*fermi*fermi; 416 delta = 0.1*fermi*fermi;
418 e1 = 0.3*fermi; 417 e1 = 0.3*fermi;
419 e2 = 0.35*fermi; 418 e2 = 0.35*fermi;
420 } 419 }
421 G4double kr = fWaveVector*fNuclearRadius; 420 G4double kr = fWaveVector*fNuclearRadius; // wavek*rad;
422 G4double kr2 = kr*kr; 421 G4double kr2 = kr*kr;
423 G4double krt = kr*theta; 422 G4double krt = kr*theta;
424 423
425 bzero = BesselJzero(krt); 424 bzero = BesselJzero(krt);
426 bzero2 = bzero*bzero; 425 bzero2 = bzero*bzero;
427 bone = BesselJone(krt); 426 bone = BesselJone(krt);
428 bone2 = bone*bone; 427 bone2 = bone*bone;
429 bonebyarg = BesselOneByArg(krt); 428 bonebyarg = BesselOneByArg(krt);
430 bonebyarg2 = bonebyarg*bonebyarg; 429 bonebyarg2 = bonebyarg*bonebyarg;
431 430
432 G4double lambda = 15.; // 15 ok 431 G4double lambda = 15.; // 15 ok
433 432
434 // G4double kgamma = fWaveVector*gamma; 433 // G4double kgamma = fWaveVector*gamma; // wavek*delta;
435 434
436 G4double kgamma = lambda*(1.-G4Exp(-fWave 435 G4double kgamma = lambda*(1.-G4Exp(-fWaveVector*gamma/lambda)); // wavek*delta;
437 G4double kgamma2 = kgamma*kgamma; 436 G4double kgamma2 = kgamma*kgamma;
438 437
439 // G4double dk2t = delta*fWaveVector*fWaveV 438 // G4double dk2t = delta*fWaveVector*fWaveVector*theta; // delta*wavek*wavek*theta;
440 // G4double dk2t2 = dk2t*dk2t; 439 // G4double dk2t2 = dk2t*dk2t;
441 // G4double pikdt = pi*fWaveVector*diffuse*t 440 // G4double pikdt = pi*fWaveVector*diffuse*theta;// pi*wavek*diffuse*theta;
442 441
443 G4double pikdt = lambda*(1.-G4Exp(-pi*fWa 442 G4double pikdt = lambda*(1.-G4Exp(-pi*fWaveVector*diffuse*theta/lambda)); // wavek*delta;
444 443
445 damp = DampFactor(pikdt); 444 damp = DampFactor(pikdt);
446 damp2 = damp*damp; 445 damp2 = damp*damp;
447 446
448 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector 447 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector*fWaveVector;
449 G4double e2dk3t = -2.*e2*delta*fWaveVector* 448 G4double e2dk3t = -2.*e2*delta*fWaveVector*fWaveVector*fWaveVector*theta;
450 449
451 450
452 sigma = kgamma2; 451 sigma = kgamma2;
453 // sigma += dk2t2; 452 // sigma += dk2t2;
454 sigma *= bzero2; 453 sigma *= bzero2;
455 sigma += mode2k2*bone2 + e2dk3t*bzero*bone; 454 sigma += mode2k2*bone2 + e2dk3t*bzero*bone;
456 sigma += kr2*bonebyarg2; 455 sigma += kr2*bonebyarg2;
457 sigma *= damp2; // *rad*rad; 456 sigma *= damp2; // *rad*rad;
458 457
459 return sigma; 458 return sigma;
460 } 459 }
461 460
462 ////////////////////////////////////////////// 461 ////////////////////////////////////////////////////////////////////////////
463 // 462 //
464 // return differential elastic probability d(p 463 // return differential elastic probability d(probability)/d(omega) with
465 // Coulomb correction 464 // Coulomb correction
466 465
467 G4double 466 G4double
468 G4DiffuseElastic::GetDiffElasticSumProb( // G4 467 G4DiffuseElastic::GetDiffElasticSumProb( // G4ParticleDefinition* particle,
469 G4doub 468 G4double theta
470 // G4double momentum, 469 // G4double momentum,
471 // G4double A 470 // G4double A
472 ) 471 )
473 { 472 {
474 G4double sigma, bzero, bzero2, bonebyarg, bo 473 G4double sigma, bzero, bzero2, bonebyarg, bonebyarg2, damp, damp2;
475 G4double delta, diffuse, gamma; 474 G4double delta, diffuse, gamma;
476 G4double e1, e2, bone, bone2; 475 G4double e1, e2, bone, bone2;
477 476
478 // G4double wavek = momentum/hbarc; // wave 477 // G4double wavek = momentum/hbarc; // wave vector
479 // G4double r0 = 1.08*fermi; 478 // G4double r0 = 1.08*fermi;
480 // G4double rad = r0*G4Pow::GetInstance()- 479 // G4double rad = r0*G4Pow::GetInstance()->A13(A);
481 480
482 G4double kr = fWaveVector*fNuclearRadius; 481 G4double kr = fWaveVector*fNuclearRadius; // wavek*rad;
483 G4double kr2 = kr*kr; 482 G4double kr2 = kr*kr;
484 G4double krt = kr*theta; 483 G4double krt = kr*theta;
485 484
486 bzero = BesselJzero(krt); 485 bzero = BesselJzero(krt);
487 bzero2 = bzero*bzero; 486 bzero2 = bzero*bzero;
488 bone = BesselJone(krt); 487 bone = BesselJone(krt);
489 bone2 = bone*bone; 488 bone2 = bone*bone;
490 bonebyarg = BesselOneByArg(krt); 489 bonebyarg = BesselOneByArg(krt);
491 bonebyarg2 = bonebyarg*bonebyarg; 490 bonebyarg2 = bonebyarg*bonebyarg;
492 491
493 if (fParticle == theProton) 492 if (fParticle == theProton)
494 { 493 {
495 diffuse = 0.63*fermi; 494 diffuse = 0.63*fermi;
496 // diffuse = 0.6*fermi; 495 // diffuse = 0.6*fermi;
497 gamma = 0.3*fermi; 496 gamma = 0.3*fermi;
498 delta = 0.1*fermi*fermi; 497 delta = 0.1*fermi*fermi;
499 e1 = 0.3*fermi; 498 e1 = 0.3*fermi;
500 e2 = 0.35*fermi; 499 e2 = 0.35*fermi;
501 } 500 }
502 else if (fParticle == theNeutron) 501 else if (fParticle == theNeutron)
503 { 502 {
504 diffuse = 0.63*fermi; 503 diffuse = 0.63*fermi;
505 // diffuse = 0.6*fermi; 504 // diffuse = 0.6*fermi;
506 G4double k0 = 1*GeV/hbarc; 505 G4double k0 = 1*GeV/hbarc;
507 diffuse *= k0/fWaveVector; 506 diffuse *= k0/fWaveVector;
508 gamma = 0.3*fermi; 507 gamma = 0.3*fermi;
509 delta = 0.1*fermi*fermi; 508 delta = 0.1*fermi*fermi;
510 e1 = 0.3*fermi; 509 e1 = 0.3*fermi;
511 e2 = 0.35*fermi; 510 e2 = 0.35*fermi;
512 } 511 }
513 else // as proton, if were not defined 512 else // as proton, if were not defined
514 { 513 {
515 diffuse = 0.63*fermi; 514 diffuse = 0.63*fermi;
516 gamma = 0.3*fermi; 515 gamma = 0.3*fermi;
517 delta = 0.1*fermi*fermi; 516 delta = 0.1*fermi*fermi;
518 e1 = 0.3*fermi; 517 e1 = 0.3*fermi;
519 e2 = 0.35*fermi; 518 e2 = 0.35*fermi;
520 } 519 }
521 G4double lambda = 15.; // 15 ok 520 G4double lambda = 15.; // 15 ok
522 // G4double kgamma = fWaveVector*gamma; 521 // G4double kgamma = fWaveVector*gamma; // wavek*delta;
523 G4double kgamma = lambda*(1.-G4Exp(-fWave 522 G4double kgamma = lambda*(1.-G4Exp(-fWaveVector*gamma/lambda)); // wavek*delta;
524 523
525 // G4cout<<"kgamma = "<<kgamma<<G4endl; 524 // G4cout<<"kgamma = "<<kgamma<<G4endl;
526 525
527 if(fAddCoulomb) // add Coulomb correction 526 if(fAddCoulomb) // add Coulomb correction
528 { 527 {
529 G4double sinHalfTheta = std::sin(0.5*thet 528 G4double sinHalfTheta = std::sin(0.5*theta);
530 G4double sinHalfTheta2 = sinHalfTheta*sinH 529 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
531 530
532 kgamma += 0.5*fZommerfeld/kr/(sinHalfTheta 531 kgamma += 0.5*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
533 // kgamma += 0.65*fZommerfeld/kr/(sinHalfThe 532 // kgamma += 0.65*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
534 } 533 }
535 534
536 G4double kgamma2 = kgamma*kgamma; 535 G4double kgamma2 = kgamma*kgamma;
537 536
538 // G4double dk2t = delta*fWaveVector*fWaveV 537 // G4double dk2t = delta*fWaveVector*fWaveVector*theta; // delta*wavek*wavek*theta;
539 // G4cout<<"dk2t = "<<dk2t<<G4endl; 538 // G4cout<<"dk2t = "<<dk2t<<G4endl;
540 // G4double dk2t2 = dk2t*dk2t; 539 // G4double dk2t2 = dk2t*dk2t;
541 // G4double pikdt = pi*fWaveVector*diffuse*t 540 // G4double pikdt = pi*fWaveVector*diffuse*theta;// pi*wavek*diffuse*theta;
542 541
543 G4double pikdt = lambda*(1.-G4Exp(-pi*fWa 542 G4double pikdt = lambda*(1.-G4Exp(-pi*fWaveVector*diffuse*theta/lambda)); // wavek*delta;
544 543
545 // G4cout<<"pikdt = "<<pikdt<<G4endl; 544 // G4cout<<"pikdt = "<<pikdt<<G4endl;
546 545
547 damp = DampFactor(pikdt); 546 damp = DampFactor(pikdt);
548 damp2 = damp*damp; 547 damp2 = damp*damp;
549 548
550 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector 549 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector*fWaveVector;
551 G4double e2dk3t = -2.*e2*delta*fWaveVector* 550 G4double e2dk3t = -2.*e2*delta*fWaveVector*fWaveVector*fWaveVector*theta;
552 551
553 sigma = kgamma2; 552 sigma = kgamma2;
554 // sigma += dk2t2; 553 // sigma += dk2t2;
555 sigma *= bzero2; 554 sigma *= bzero2;
556 sigma += mode2k2*bone2; 555 sigma += mode2k2*bone2;
557 sigma += e2dk3t*bzero*bone; 556 sigma += e2dk3t*bzero*bone;
558 557
559 // sigma += kr2*(1 + 8.*fZommerfeld*fZommerf 558 // sigma += kr2*(1 + 8.*fZommerfeld*fZommerfeld/kr2)*bonebyarg2; // correction at J1()/()
560 sigma += kr2*bonebyarg2; // correction at J 559 sigma += kr2*bonebyarg2; // correction at J1()/()
561 560
562 sigma *= damp2; // *rad*rad; 561 sigma *= damp2; // *rad*rad;
563 562
564 return sigma; 563 return sigma;
565 } 564 }
566 565
567 566
568 ////////////////////////////////////////////// 567 ////////////////////////////////////////////////////////////////////////////
569 // 568 //
570 // return differential elastic probability d(p 569 // return differential elastic probability d(probability)/d(t) with
571 // Coulomb correction. It is called from Build 570 // Coulomb correction. It is called from BuildAngleTable()
572 571
573 G4double 572 G4double
574 G4DiffuseElastic::GetDiffElasticSumProbA( G4do 573 G4DiffuseElastic::GetDiffElasticSumProbA( G4double alpha )
575 { 574 {
576 G4double theta; 575 G4double theta;
577 576
578 theta = std::sqrt(alpha); 577 theta = std::sqrt(alpha);
579 578
580 // theta = std::acos( 1 - alpha/2. ); 579 // theta = std::acos( 1 - alpha/2. );
581 580
582 G4double sigma, bzero, bzero2, bonebyarg, bo 581 G4double sigma, bzero, bzero2, bonebyarg, bonebyarg2, damp, damp2;
583 G4double delta, diffuse, gamma; 582 G4double delta, diffuse, gamma;
584 G4double e1, e2, bone, bone2; 583 G4double e1, e2, bone, bone2;
585 584
586 // G4double wavek = momentum/hbarc; // wave 585 // G4double wavek = momentum/hbarc; // wave vector
587 // G4double r0 = 1.08*fermi; 586 // G4double r0 = 1.08*fermi;
588 // G4double rad = r0*G4Pow::GetInstance()- 587 // G4double rad = r0*G4Pow::GetInstance()->A13(A);
589 588
590 G4double kr = fWaveVector*fNuclearRadius; 589 G4double kr = fWaveVector*fNuclearRadius; // wavek*rad;
591 G4double kr2 = kr*kr; 590 G4double kr2 = kr*kr;
592 G4double krt = kr*theta; 591 G4double krt = kr*theta;
593 592
594 bzero = BesselJzero(krt); 593 bzero = BesselJzero(krt);
595 bzero2 = bzero*bzero; 594 bzero2 = bzero*bzero;
596 bone = BesselJone(krt); 595 bone = BesselJone(krt);
597 bone2 = bone*bone; 596 bone2 = bone*bone;
598 bonebyarg = BesselOneByArg(krt); 597 bonebyarg = BesselOneByArg(krt);
599 bonebyarg2 = bonebyarg*bonebyarg; 598 bonebyarg2 = bonebyarg*bonebyarg;
600 599
601 if ( fParticle == theProton ) 600 if ( fParticle == theProton )
602 { 601 {
603 diffuse = 0.63*fermi; 602 diffuse = 0.63*fermi;
604 // diffuse = 0.6*fermi; 603 // diffuse = 0.6*fermi;
605 gamma = 0.3*fermi; 604 gamma = 0.3*fermi;
606 delta = 0.1*fermi*fermi; 605 delta = 0.1*fermi*fermi;
607 e1 = 0.3*fermi; 606 e1 = 0.3*fermi;
608 e2 = 0.35*fermi; 607 e2 = 0.35*fermi;
609 } 608 }
610 else if ( fParticle == theNeutron ) 609 else if ( fParticle == theNeutron )
611 { 610 {
612 diffuse = 0.63*fermi; 611 diffuse = 0.63*fermi;
613 // diffuse = 0.6*fermi; 612 // diffuse = 0.6*fermi;
614 // G4double k0 = 0.8*GeV/hbarc; 613 // G4double k0 = 0.8*GeV/hbarc;
615 // diffuse *= k0/fWaveVector; 614 // diffuse *= k0/fWaveVector;
616 gamma = 0.3*fermi; 615 gamma = 0.3*fermi;
617 delta = 0.1*fermi*fermi; 616 delta = 0.1*fermi*fermi;
618 e1 = 0.3*fermi; 617 e1 = 0.3*fermi;
619 e2 = 0.35*fermi; 618 e2 = 0.35*fermi;
620 } 619 }
621 else // as proton, if were not defined 620 else // as proton, if were not defined
622 { 621 {
623 diffuse = 0.63*fermi; 622 diffuse = 0.63*fermi;
624 gamma = 0.3*fermi; 623 gamma = 0.3*fermi;
625 delta = 0.1*fermi*fermi; 624 delta = 0.1*fermi*fermi;
626 e1 = 0.3*fermi; 625 e1 = 0.3*fermi;
627 e2 = 0.35*fermi; 626 e2 = 0.35*fermi;
628 } 627 }
629 G4double lambda = 15.; // 15 ok 628 G4double lambda = 15.; // 15 ok
630 // G4double kgamma = fWaveVector*gamma; 629 // G4double kgamma = fWaveVector*gamma; // wavek*delta;
631 G4double kgamma = lambda*(1.-G4Exp(-fWave 630 G4double kgamma = lambda*(1.-G4Exp(-fWaveVector*gamma/lambda)); // wavek*delta;
632 631
633 // G4cout<<"kgamma = "<<kgamma<<G4endl; 632 // G4cout<<"kgamma = "<<kgamma<<G4endl;
634 633
635 if( fAddCoulomb ) // add Coulomb correction 634 if( fAddCoulomb ) // add Coulomb correction
636 { 635 {
637 G4double sinHalfTheta = theta*0.5; // std 636 G4double sinHalfTheta = theta*0.5; // std::sin(0.5*theta);
638 G4double sinHalfTheta2 = sinHalfTheta*sinH 637 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
639 638
640 kgamma += 0.5*fZommerfeld/kr/(sinHalfTheta 639 kgamma += 0.5*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
641 // kgamma += 0.65*fZommerfeld/kr/(sinHalfThe 640 // kgamma += 0.65*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
642 } 641 }
643 G4double kgamma2 = kgamma*kgamma; 642 G4double kgamma2 = kgamma*kgamma;
644 643
645 // G4double dk2t = delta*fWaveVector*fWaveV 644 // G4double dk2t = delta*fWaveVector*fWaveVector*theta; // delta*wavek*wavek*theta;
646 // G4cout<<"dk2t = "<<dk2t<<G4endl; 645 // G4cout<<"dk2t = "<<dk2t<<G4endl;
647 // G4double dk2t2 = dk2t*dk2t; 646 // G4double dk2t2 = dk2t*dk2t;
648 // G4double pikdt = pi*fWaveVector*diffuse*t 647 // G4double pikdt = pi*fWaveVector*diffuse*theta;// pi*wavek*diffuse*theta;
649 648
650 G4double pikdt = lambda*(1. - G4Exp( -pi* 649 G4double pikdt = lambda*(1. - G4Exp( -pi*fWaveVector*diffuse*theta/lambda ) ); // wavek*delta;
651 650
652 // G4cout<<"pikdt = "<<pikdt<<G4endl; 651 // G4cout<<"pikdt = "<<pikdt<<G4endl;
653 652
654 damp = DampFactor( pikdt ); 653 damp = DampFactor( pikdt );
655 damp2 = damp*damp; 654 damp2 = damp*damp;
656 655
657 G4double mode2k2 = ( e1*e1 + e2*e2 )*fWaveVe 656 G4double mode2k2 = ( e1*e1 + e2*e2 )*fWaveVector*fWaveVector;
658 G4double e2dk3t = -2.*e2*delta*fWaveVector* 657 G4double e2dk3t = -2.*e2*delta*fWaveVector*fWaveVector*fWaveVector*theta;
659 658
660 sigma = kgamma2; 659 sigma = kgamma2;
661 // sigma += dk2t2; 660 // sigma += dk2t2;
662 sigma *= bzero2; 661 sigma *= bzero2;
663 sigma += mode2k2*bone2; 662 sigma += mode2k2*bone2;
664 sigma += e2dk3t*bzero*bone; 663 sigma += e2dk3t*bzero*bone;
665 664
666 // sigma += kr2*(1 + 8.*fZommerfeld*fZommerf 665 // sigma += kr2*(1 + 8.*fZommerfeld*fZommerfeld/kr2)*bonebyarg2; // correction at J1()/()
667 sigma += kr2*bonebyarg2; // correction at J 666 sigma += kr2*bonebyarg2; // correction at J1()/()
668 667
669 sigma *= damp2; // *rad*rad; 668 sigma *= damp2; // *rad*rad;
670 669
671 return sigma; 670 return sigma;
672 } 671 }
673 672
674 673
675 ////////////////////////////////////////////// 674 ////////////////////////////////////////////////////////////////////////////
676 // 675 //
677 // return differential elastic probability 2*p 676 // return differential elastic probability 2*pi*sin(theta)*d(probability)/d(omega)
678 677
679 G4double 678 G4double
680 G4DiffuseElastic::GetIntegrandFunction( G4doub 679 G4DiffuseElastic::GetIntegrandFunction( G4double alpha )
681 { 680 {
682 G4double result; 681 G4double result;
683 682
684 result = GetDiffElasticSumProbA(alpha); 683 result = GetDiffElasticSumProbA(alpha);
685 684
686 // result *= 2*pi*std::sin(theta); 685 // result *= 2*pi*std::sin(theta);
687 686
688 return result; 687 return result;
689 } 688 }
690 689
691 ////////////////////////////////////////////// 690 ////////////////////////////////////////////////////////////////////////////
692 // 691 //
693 // return integral elastic cross section d(sig 692 // return integral elastic cross section d(sigma)/d(omega) integrated 0 - theta
694 693
695 G4double 694 G4double
696 G4DiffuseElastic::IntegralElasticProb( const 695 G4DiffuseElastic::IntegralElasticProb( const G4ParticleDefinition* particle,
697 G4doub 696 G4double theta,
698 G4double momentum, 697 G4double momentum,
699 G4doub 698 G4double A )
700 { 699 {
701 G4double result; 700 G4double result;
702 fParticle = particle; 701 fParticle = particle;
703 fWaveVector = momentum/hbarc; 702 fWaveVector = momentum/hbarc;
704 fAtomicWeight = A; 703 fAtomicWeight = A;
705 704
706 fNuclearRadius = CalculateNuclearRad(A); 705 fNuclearRadius = CalculateNuclearRad(A);
707 706
708 707
709 G4Integrator<G4DiffuseElastic,G4double(G4Dif 708 G4Integrator<G4DiffuseElastic,G4double(G4DiffuseElastic::*)(G4double)> integral;
710 709
711 // result = integral.Legendre10(this,&G4Diff 710 // result = integral.Legendre10(this,&G4DiffuseElastic::GetIntegrandFunction, 0., theta );
712 result = integral.Legendre96(this,&G4Diffuse 711 result = integral.Legendre96(this,&G4DiffuseElastic::GetIntegrandFunction, 0., theta );
713 712
714 return result; 713 return result;
715 } 714 }
716 715
717 ////////////////////////////////////////////// 716 ////////////////////////////////////////////////////////////////////////////
718 // 717 //
719 // Return inv momentum transfer -t > 0 718 // Return inv momentum transfer -t > 0
720 719
721 G4double G4DiffuseElastic::SampleT( const G4Pa 720 G4double G4DiffuseElastic::SampleT( const G4ParticleDefinition* aParticle, G4double p, G4double A)
722 { 721 {
723 G4double theta = SampleThetaCMS( aParticle, 722 G4double theta = SampleThetaCMS( aParticle, p, A); // sample theta in cms
724 G4double t = 2*p*p*( 1 - std::cos(theta) 723 G4double t = 2*p*p*( 1 - std::cos(theta) ); // -t !!!
725 return t; 724 return t;
726 } 725 }
727 726
728 ////////////////////////////////////////////// 727 ////////////////////////////////////////////////////////////////////////////
729 // 728 //
730 // Return scattering angle sampled in cms 729 // Return scattering angle sampled in cms
731 730
732 731
733 G4double 732 G4double
734 G4DiffuseElastic::SampleThetaCMS(const G4Parti 733 G4DiffuseElastic::SampleThetaCMS(const G4ParticleDefinition* particle,
735 G4doubl 734 G4double momentum, G4double A)
736 { 735 {
737 G4int i, iMax = 100; 736 G4int i, iMax = 100;
738 G4double norm, theta1, theta2, thetaMax; << 737 G4double norm, result, theta1, theta2, thetaMax, sum = 0.;
739 G4double result = 0., sum = 0.; <<
740 738
741 fParticle = particle; 739 fParticle = particle;
742 fWaveVector = momentum/hbarc; 740 fWaveVector = momentum/hbarc;
743 fAtomicWeight = A; 741 fAtomicWeight = A;
744 742
745 fNuclearRadius = CalculateNuclearRad(A); 743 fNuclearRadius = CalculateNuclearRad(A);
746 744
747 thetaMax = 10.174/fWaveVector/fNuclearRadius 745 thetaMax = 10.174/fWaveVector/fNuclearRadius;
748 746
749 if (thetaMax > pi) thetaMax = pi; 747 if (thetaMax > pi) thetaMax = pi;
750 748
751 G4Integrator<G4DiffuseElastic,G4double(G4Dif 749 G4Integrator<G4DiffuseElastic,G4double(G4DiffuseElastic::*)(G4double)> integral;
752 750
753 // result = integral.Legendre10(this,&G4Diff 751 // result = integral.Legendre10(this,&G4DiffuseElastic::GetIntegrandFunction, 0., theta );
754 norm = integral.Legendre96(this,&G4DiffuseEl 752 norm = integral.Legendre96(this,&G4DiffuseElastic::GetIntegrandFunction, 0., thetaMax );
755 753
756 norm *= G4UniformRand(); 754 norm *= G4UniformRand();
757 755
758 for(i = 1; i <= iMax; i++) 756 for(i = 1; i <= iMax; i++)
759 { 757 {
760 theta1 = (i-1)*thetaMax/iMax; 758 theta1 = (i-1)*thetaMax/iMax;
761 theta2 = i*thetaMax/iMax; 759 theta2 = i*thetaMax/iMax;
762 sum += integral.Legendre10(this,&G4Diffu 760 sum += integral.Legendre10(this,&G4DiffuseElastic::GetIntegrandFunction, theta1, theta2);
763 761
764 if ( sum >= norm ) 762 if ( sum >= norm )
765 { 763 {
766 result = 0.5*(theta1 + theta2); 764 result = 0.5*(theta1 + theta2);
767 break; 765 break;
768 } 766 }
769 } 767 }
770 if (i > iMax ) result = 0.5*(theta1 + theta2 768 if (i > iMax ) result = 0.5*(theta1 + theta2);
771 769
772 G4double sigma = pi*thetaMax/iMax; 770 G4double sigma = pi*thetaMax/iMax;
773 771
774 result += G4RandGauss::shoot(0.,sigma); 772 result += G4RandGauss::shoot(0.,sigma);
775 773
776 if(result < 0.) result = 0.; 774 if(result < 0.) result = 0.;
777 if(result > thetaMax) result = thetaMax; 775 if(result > thetaMax) result = thetaMax;
778 776
779 return result; 777 return result;
780 } 778 }
781 779
782 ////////////////////////////////////////////// 780 /////////////////////////////////////////////////////////////////////////////
783 ///////////////////// Table preparation and r 781 ///////////////////// Table preparation and reading ////////////////////////
784 ////////////////////////////////////////////// 782 ////////////////////////////////////////////////////////////////////////////
785 // 783 //
786 // Return inv momentum transfer -t > 0 from in 784 // Return inv momentum transfer -t > 0 from initialisation table
787 785
788 G4double G4DiffuseElastic::SampleInvariantT( c 786 G4double G4DiffuseElastic::SampleInvariantT( const G4ParticleDefinition* aParticle, G4double p,
789 787 G4int Z, G4int A)
790 { 788 {
791 fParticle = aParticle; 789 fParticle = aParticle;
792 G4double m1 = fParticle->GetPDGMass(), t; 790 G4double m1 = fParticle->GetPDGMass(), t;
793 G4double totElab = std::sqrt(m1*m1+p*p); 791 G4double totElab = std::sqrt(m1*m1+p*p);
794 G4double mass2 = G4NucleiProperties::GetNucl 792 G4double mass2 = G4NucleiProperties::GetNuclearMass(A, Z);
795 G4LorentzVector lv1(p,0.0,0.0,totElab); 793 G4LorentzVector lv1(p,0.0,0.0,totElab);
796 G4LorentzVector lv(0.0,0.0,0.0,mass2); 794 G4LorentzVector lv(0.0,0.0,0.0,mass2);
797 lv += lv1; 795 lv += lv1;
798 796
799 G4ThreeVector bst = lv.boostVector(); 797 G4ThreeVector bst = lv.boostVector();
800 lv1.boost(-bst); 798 lv1.boost(-bst);
801 799
802 G4ThreeVector p1 = lv1.vect(); 800 G4ThreeVector p1 = lv1.vect();
803 G4double momentumCMS = p1.mag(); 801 G4double momentumCMS = p1.mag();
804 802
805 if( aParticle == theNeutron) 803 if( aParticle == theNeutron)
806 { 804 {
807 G4double Tmax = NeutronTuniform( Z ); 805 G4double Tmax = NeutronTuniform( Z );
808 G4double pCMS2 = momentumCMS*momentumCMS; 806 G4double pCMS2 = momentumCMS*momentumCMS;
809 G4double Tkin = std::sqrt(pCMS2+m1*m1)-m1; 807 G4double Tkin = std::sqrt(pCMS2+m1*m1)-m1;
810 808
811 if( Tkin <= Tmax ) 809 if( Tkin <= Tmax )
812 { 810 {
813 t = 4.*pCMS2*G4UniformRand(); 811 t = 4.*pCMS2*G4UniformRand();
814 // G4cout<<Tkin<<", "<<Tmax<<", "<<std:: 812 // G4cout<<Tkin<<", "<<Tmax<<", "<<std::sqrt(t)<<"; ";
815 return t; 813 return t;
816 } 814 }
817 } 815 }
818 816
819 t = SampleTableT( aParticle, momentumCMS, G 817 t = SampleTableT( aParticle, momentumCMS, G4double(Z), G4double(A) ); // sample theta2 in cms
820 818
821 return t; 819 return t;
822 } 820 }
823 821
824 ////////////////////////////////////////////// 822 ///////////////////////////////////////////////////////
825 823
826 G4double G4DiffuseElastic::NeutronTuniform(G4i 824 G4double G4DiffuseElastic::NeutronTuniform(G4int Z)
827 { 825 {
828 G4double elZ = G4double(Z); 826 G4double elZ = G4double(Z);
829 elZ -= 1.; 827 elZ -= 1.;
830 // G4double Tkin = 20.*G4Exp(-elZ/10.) + 1.; 828 // G4double Tkin = 20.*G4Exp(-elZ/10.) + 1.;
831 G4double Tkin = 12.*G4Exp(-elZ/10.) + 1.; 829 G4double Tkin = 12.*G4Exp(-elZ/10.) + 1.;
832 return Tkin; 830 return Tkin;
833 } 831 }
834 832
835 833
836 ////////////////////////////////////////////// 834 ////////////////////////////////////////////////////////////////////////////
837 // 835 //
838 // Return inv momentum transfer -t > 0 from in 836 // Return inv momentum transfer -t > 0 from initialisation table
839 837
840 G4double G4DiffuseElastic::SampleTableT( const 838 G4double G4DiffuseElastic::SampleTableT( const G4ParticleDefinition* aParticle, G4double p,
841 839 G4double Z, G4double A)
842 { 840 {
843 G4double alpha = SampleTableThetaCMS( aParti 841 G4double alpha = SampleTableThetaCMS( aParticle, p, Z, A); // sample theta2 in cms
844 G4double t = 2*p*p*( 1 - std::cos(std::s 842 G4double t = 2*p*p*( 1 - std::cos(std::sqrt(alpha)) ); // -t !!!
845 // G4double t = p*p*alpha; / 843 // G4double t = p*p*alpha; // -t !!!
846 return t; 844 return t;
847 } 845 }
848 846
849 ////////////////////////////////////////////// 847 ////////////////////////////////////////////////////////////////////////////
850 // 848 //
851 // Return scattering angle2 sampled in cms acc 849 // Return scattering angle2 sampled in cms according to precalculated table.
852 850
853 851
854 G4double 852 G4double
855 G4DiffuseElastic::SampleTableThetaCMS(const G4 853 G4DiffuseElastic::SampleTableThetaCMS(const G4ParticleDefinition* particle,
856 G4doubl 854 G4double momentum, G4double Z, G4double A)
857 { 855 {
858 std::size_t iElement; << 856 size_t iElement;
859 G4int iMomentum, iAngle; 857 G4int iMomentum, iAngle;
860 G4double randAngle, position, theta1, theta2 858 G4double randAngle, position, theta1, theta2, E1, E2, W1, W2, W;
861 G4double m1 = particle->GetPDGMass(); 859 G4double m1 = particle->GetPDGMass();
862 860
863 for(iElement = 0; iElement < fElementNumberV 861 for(iElement = 0; iElement < fElementNumberVector.size(); iElement++)
864 { 862 {
865 if( std::fabs(Z - fElementNumberVector[iEl 863 if( std::fabs(Z - fElementNumberVector[iElement]) < 0.5) break;
866 } 864 }
867 if ( iElement == fElementNumberVector.size() 865 if ( iElement == fElementNumberVector.size() )
868 { 866 {
869 InitialiseOnFly(Z,A); // table preparation 867 InitialiseOnFly(Z,A); // table preparation, if needed
870 868
871 // iElement--; 869 // iElement--;
872 870
873 // G4cout << "G4DiffuseElastic: Element wi 871 // G4cout << "G4DiffuseElastic: Element with atomic number " << Z
874 // << " is not found, return zero angle" < 872 // << " is not found, return zero angle" << G4endl;
875 // return 0.; // no table for this element 873 // return 0.; // no table for this element
876 } 874 }
877 // G4cout<<"iElement = "<<iElement<<G4endl; 875 // G4cout<<"iElement = "<<iElement<<G4endl;
878 876
879 fAngleTable = fAngleBank[iElement]; 877 fAngleTable = fAngleBank[iElement];
880 878
881 G4double kinE = std::sqrt(momentum*momentum 879 G4double kinE = std::sqrt(momentum*momentum + m1*m1) - m1;
882 880
883 for( iMomentum = 0; iMomentum < fEnergyBin; 881 for( iMomentum = 0; iMomentum < fEnergyBin; iMomentum++)
884 { 882 {
885 if( kinE < fEnergyVector->GetLowEdgeEnergy 883 if( kinE < fEnergyVector->GetLowEdgeEnergy(iMomentum) ) break;
886 } 884 }
887 if ( iMomentum >= fEnergyBin ) iMomentum = f 885 if ( iMomentum >= fEnergyBin ) iMomentum = fEnergyBin-1; // kinE is more then theMaxEnergy
888 if ( iMomentum < 0 ) iMomentum = 0 886 if ( iMomentum < 0 ) iMomentum = 0; // against negative index, kinE < theMinEnergy
889 887
890 // G4cout<<"iMomentum = "<<iMomentum<<G4endl 888 // G4cout<<"iMomentum = "<<iMomentum<<G4endl;
891 889
892 if (iMomentum == fEnergyBin -1 || iMomentum 890 if (iMomentum == fEnergyBin -1 || iMomentum == 0 ) // the table edges
893 { 891 {
894 position = (*(*fAngleTable)(iMomentum))(fA 892 position = (*(*fAngleTable)(iMomentum))(fAngleBin-2)*G4UniformRand();
895 893
896 // G4cout<<"position = "<<position<<G4endl 894 // G4cout<<"position = "<<position<<G4endl;
897 895
898 for(iAngle = 0; iAngle < fAngleBin-1; iAng 896 for(iAngle = 0; iAngle < fAngleBin-1; iAngle++)
899 { 897 {
900 if( position > (*(*fAngleTable)(iMomentu 898 if( position > (*(*fAngleTable)(iMomentum))(iAngle) ) break;
901 } 899 }
902 if (iAngle >= fAngleBin-1) iAngle = fAngle 900 if (iAngle >= fAngleBin-1) iAngle = fAngleBin-2;
903 901
904 // G4cout<<"iAngle = "<<iAngle<<G4endl; 902 // G4cout<<"iAngle = "<<iAngle<<G4endl;
905 903
906 randAngle = GetScatteringAngle(iMomentum, 904 randAngle = GetScatteringAngle(iMomentum, iAngle, position);
907 905
908 // G4cout<<"randAngle = "<<randAngle<<G4en 906 // G4cout<<"randAngle = "<<randAngle<<G4endl;
909 } 907 }
910 else // kinE inside between energy table ed 908 else // kinE inside between energy table edges
911 { 909 {
912 // position = (*(*fAngleTable)(iMomentum)) 910 // position = (*(*fAngleTable)(iMomentum))(fAngleBin-2)*G4UniformRand();
913 position = (*(*fAngleTable)(iMomentum))(0) 911 position = (*(*fAngleTable)(iMomentum))(0)*G4UniformRand();
914 912
915 // G4cout<<"position = "<<position<<G4endl 913 // G4cout<<"position = "<<position<<G4endl;
916 914
917 for(iAngle = 0; iAngle < fAngleBin-1; iAng 915 for(iAngle = 0; iAngle < fAngleBin-1; iAngle++)
918 { 916 {
919 // if( position < (*(*fAngleTable)(iMome 917 // if( position < (*(*fAngleTable)(iMomentum))(iAngle) ) break;
920 if( position > (*(*fAngleTable)(iMomentu 918 if( position > (*(*fAngleTable)(iMomentum))(iAngle) ) break;
921 } 919 }
922 if (iAngle >= fAngleBin-1) iAngle = fAngle 920 if (iAngle >= fAngleBin-1) iAngle = fAngleBin-2;
923 921
924 // G4cout<<"iAngle = "<<iAngle<<G4endl; 922 // G4cout<<"iAngle = "<<iAngle<<G4endl;
925 923
926 theta2 = GetScatteringAngle(iMomentum, iA 924 theta2 = GetScatteringAngle(iMomentum, iAngle, position);
927 925
928 // G4cout<<"theta2 = "<<theta2<<G4endl; 926 // G4cout<<"theta2 = "<<theta2<<G4endl;
929 E2 = fEnergyVector->GetLowEdgeEnergy(iMome 927 E2 = fEnergyVector->GetLowEdgeEnergy(iMomentum);
930 928
931 // G4cout<<"E2 = "<<E2<<G4endl; 929 // G4cout<<"E2 = "<<E2<<G4endl;
932 930
933 iMomentum--; 931 iMomentum--;
934 932
935 // position = (*(*fAngleTable)(iMomentum)) 933 // position = (*(*fAngleTable)(iMomentum))(fAngleBin-2)*G4UniformRand();
936 934
937 // G4cout<<"position = "<<position<<G4endl 935 // G4cout<<"position = "<<position<<G4endl;
938 936
939 for(iAngle = 0; iAngle < fAngleBin-1; iAng 937 for(iAngle = 0; iAngle < fAngleBin-1; iAngle++)
940 { 938 {
941 // if( position < (*(*fAngleTable)(iMome 939 // if( position < (*(*fAngleTable)(iMomentum))(iAngle) ) break;
942 if( position > (*(*fAngleTable)(iMomentu 940 if( position > (*(*fAngleTable)(iMomentum))(iAngle) ) break;
943 } 941 }
944 if (iAngle >= fAngleBin-1) iAngle = fAngle 942 if (iAngle >= fAngleBin-1) iAngle = fAngleBin-2;
945 943
946 theta1 = GetScatteringAngle(iMomentum, iA 944 theta1 = GetScatteringAngle(iMomentum, iAngle, position);
947 945
948 // G4cout<<"theta1 = "<<theta1<<G4endl; 946 // G4cout<<"theta1 = "<<theta1<<G4endl;
949 947
950 E1 = fEnergyVector->GetLowEdgeEnergy(iMome 948 E1 = fEnergyVector->GetLowEdgeEnergy(iMomentum);
951 949
952 // G4cout<<"E1 = "<<E1<<G4endl; 950 // G4cout<<"E1 = "<<E1<<G4endl;
953 951
954 W = 1.0/(E2 - E1); 952 W = 1.0/(E2 - E1);
955 W1 = (E2 - kinE)*W; 953 W1 = (E2 - kinE)*W;
956 W2 = (kinE - E1)*W; 954 W2 = (kinE - E1)*W;
957 955
958 randAngle = W1*theta1 + W2*theta2; 956 randAngle = W1*theta1 + W2*theta2;
959 957
960 // randAngle = theta2; 958 // randAngle = theta2;
961 // G4cout<<"randAngle = "<<randAngle<<G4en 959 // G4cout<<"randAngle = "<<randAngle<<G4endl;
962 } 960 }
963 // G4double angle = randAngle; 961 // G4double angle = randAngle;
964 // if (randAngle > 0.) randAngle /= 2*pi*std 962 // if (randAngle > 0.) randAngle /= 2*pi*std::sin(angle);
965 963
966 if(randAngle < 0.) randAngle = 0.; 964 if(randAngle < 0.) randAngle = 0.;
967 965
968 return randAngle; 966 return randAngle;
969 } 967 }
970 968
971 ////////////////////////////////////////////// 969 //////////////////////////////////////////////////////////////////////////////
972 // 970 //
973 // Initialisation for given particle on fly us 971 // Initialisation for given particle on fly using new element number
974 972
975 void G4DiffuseElastic::InitialiseOnFly(G4doubl 973 void G4DiffuseElastic::InitialiseOnFly(G4double Z, G4double A)
976 { 974 {
977 fAtomicNumber = Z; // atomic number 975 fAtomicNumber = Z; // atomic number
978 fAtomicWeight = G4NistManager::Instance()-> 976 fAtomicWeight = G4NistManager::Instance()->GetAtomicMassAmu( static_cast< G4int >( Z ) );
979 977
980 fNuclearRadius = CalculateNuclearRad(fAtomic 978 fNuclearRadius = CalculateNuclearRad(fAtomicWeight);
981 979
982 if( verboseLevel > 0 ) 980 if( verboseLevel > 0 )
983 { 981 {
984 G4cout<<"G4DiffuseElastic::InitialiseOnFly 982 G4cout<<"G4DiffuseElastic::InitialiseOnFly() the element with Z = "
985 <<Z<<"; and A = "<<A<<G4endl; 983 <<Z<<"; and A = "<<A<<G4endl;
986 } 984 }
987 fElementNumberVector.push_back(fAtomicNumber 985 fElementNumberVector.push_back(fAtomicNumber);
988 986
989 BuildAngleTable(); 987 BuildAngleTable();
990 988
991 fAngleBank.push_back(fAngleTable); 989 fAngleBank.push_back(fAngleTable);
992 990
993 return; 991 return;
994 } 992 }
995 993
996 ////////////////////////////////////////////// 994 ///////////////////////////////////////////////////////////////////////////////
997 // 995 //
998 // Build for given particle and element table 996 // Build for given particle and element table of momentum, angle probability.
999 // For the moment in lab system. 997 // For the moment in lab system.
1000 998
1001 void G4DiffuseElastic::BuildAngleTable() 999 void G4DiffuseElastic::BuildAngleTable()
1002 { 1000 {
1003 G4int i, j; 1001 G4int i, j;
1004 G4double partMom, kinE, a = 0., z = fPartic 1002 G4double partMom, kinE, a = 0., z = fParticle->GetPDGCharge(), m1 = fParticle->GetPDGMass();
1005 G4double alpha1, alpha2, alphaMax, alphaCou 1003 G4double alpha1, alpha2, alphaMax, alphaCoulomb, delta = 0., sum = 0.;
1006 1004
1007 G4Integrator<G4DiffuseElastic,G4double(G4Di 1005 G4Integrator<G4DiffuseElastic,G4double(G4DiffuseElastic::*)(G4double)> integral;
1008 1006
1009 fAngleTable = new G4PhysicsTable( fEnergyBi 1007 fAngleTable = new G4PhysicsTable( fEnergyBin );
1010 1008
1011 for( i = 0; i < fEnergyBin; i++) 1009 for( i = 0; i < fEnergyBin; i++)
1012 { 1010 {
1013 kinE = fEnergyVector->GetLowEdgeEn 1011 kinE = fEnergyVector->GetLowEdgeEnergy(i);
1014 partMom = std::sqrt( kinE*(kinE + 2*m 1012 partMom = std::sqrt( kinE*(kinE + 2*m1) );
1015 1013
1016 fWaveVector = partMom/hbarc; 1014 fWaveVector = partMom/hbarc;
1017 1015
1018 G4double kR = fWaveVector*fNuclearRad 1016 G4double kR = fWaveVector*fNuclearRadius;
1019 G4double kR2 = kR*kR; 1017 G4double kR2 = kR*kR;
1020 G4double kRmax = 18.6; // 10.6; 10.6, 18 1018 G4double kRmax = 18.6; // 10.6; 10.6, 18, 10.174; ~ 3 maxima of J1 or 15., 25.
1021 G4double kRcoul = 1.9; // 1.2; 1.4, 2.5; 1019 G4double kRcoul = 1.9; // 1.2; 1.4, 2.5; // on the first slope of J1
1022 // G4double kRlim = 1.2; 1020 // G4double kRlim = 1.2;
1023 // G4double kRlim2 = kRlim*kRlim/kR2; 1021 // G4double kRlim2 = kRlim*kRlim/kR2;
1024 1022
1025 alphaMax = kRmax*kRmax/kR2; 1023 alphaMax = kRmax*kRmax/kR2;
1026 1024
1027 1025
1028 // if (alphaMax > 4.) alphaMax = 4.; // 1026 // if (alphaMax > 4.) alphaMax = 4.; // vmg05-02-09: was pi2
1029 // if ( alphaMax > 4. || alphaMax < 1. ) 1027 // if ( alphaMax > 4. || alphaMax < 1. ) alphaMax = 15.; // vmg27.11.14
1030 1028
1031 // if ( alphaMax > 4. || alphaMax < 1. ) 1029 // if ( alphaMax > 4. || alphaMax < 1. ) alphaMax = CLHEP::pi*CLHEP::pi; // vmg06.01.15
1032 1030
1033 // G4cout<<"alphaMax = "<<alphaMax<<", "; 1031 // G4cout<<"alphaMax = "<<alphaMax<<", ";
1034 1032
1035 if ( alphaMax >= CLHEP::pi*CLHEP::pi ) al 1033 if ( alphaMax >= CLHEP::pi*CLHEP::pi ) alphaMax = CLHEP::pi*CLHEP::pi; // vmg21.10.15
1036 1034
1037 alphaCoulomb = kRcoul*kRcoul/kR2; 1035 alphaCoulomb = kRcoul*kRcoul/kR2;
1038 1036
1039 if( z ) 1037 if( z )
1040 { 1038 {
1041 a = partMom/m1; // be 1039 a = partMom/m1; // beta*gamma for m1
1042 fBeta = a/std::sqrt(1+a*a); 1040 fBeta = a/std::sqrt(1+a*a);
1043 fZommerfeld = CalculateZommerfeld( fBet 1041 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
1044 fAm = CalculateAm( partMom, fZo 1042 fAm = CalculateAm( partMom, fZommerfeld, fAtomicNumber);
1045 } 1043 }
1046 G4PhysicsFreeVector* angleVector = new G4 1044 G4PhysicsFreeVector* angleVector = new G4PhysicsFreeVector(fAngleBin-1);
1047 1045
1048 // G4PhysicsLogVector* angleBins = new G 1046 // G4PhysicsLogVector* angleBins = new G4PhysicsLogVector( 0.001*alphaMax, alphaMax, fAngleBin );
1049 1047
1050 G4double delth = alphaMax/fAngleBin; 1048 G4double delth = alphaMax/fAngleBin;
1051 1049
1052 sum = 0.; 1050 sum = 0.;
1053 1051
1054 // fAddCoulomb = false; 1052 // fAddCoulomb = false;
1055 fAddCoulomb = true; 1053 fAddCoulomb = true;
1056 1054
1057 // for(j = 1; j < fAngleBin; j++) 1055 // for(j = 1; j < fAngleBin; j++)
1058 for(j = fAngleBin-1; j >= 1; j--) 1056 for(j = fAngleBin-1; j >= 1; j--)
1059 { 1057 {
1060 // alpha1 = angleBins->GetLowEdgeEnergy 1058 // alpha1 = angleBins->GetLowEdgeEnergy(j-1);
1061 // alpha2 = angleBins->GetLowEdgeEnergy 1059 // alpha2 = angleBins->GetLowEdgeEnergy(j);
1062 1060
1063 // alpha1 = alphaMax*(j-1)/fAngleBin; 1061 // alpha1 = alphaMax*(j-1)/fAngleBin;
1064 // alpha2 = alphaMax*( j )/fAngleBin; 1062 // alpha2 = alphaMax*( j )/fAngleBin;
1065 1063
1066 alpha1 = delth*(j-1); 1064 alpha1 = delth*(j-1);
1067 // if(alpha1 < kRlim2) alpha1 = kRlim2; 1065 // if(alpha1 < kRlim2) alpha1 = kRlim2;
1068 alpha2 = alpha1 + delth; 1066 alpha2 = alpha1 + delth;
1069 1067
1070 // if( ( alpha2 > alphaCoulomb ) && z ) 1068 // if( ( alpha2 > alphaCoulomb ) && z ) fAddCoulomb = true;
1071 if( ( alpha1 < alphaCoulomb ) && z ) fA 1069 if( ( alpha1 < alphaCoulomb ) && z ) fAddCoulomb = false;
1072 1070
1073 delta = integral.Legendre10(this, &G4Di 1071 delta = integral.Legendre10(this, &G4DiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1074 // delta = integral.Legendre96(this, &G 1072 // delta = integral.Legendre96(this, &G4DiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1075 1073
1076 sum += delta; 1074 sum += delta;
1077 1075
1078 angleVector->PutValue( j-1 , alpha1, su 1076 angleVector->PutValue( j-1 , alpha1, sum ); // alpha2
1079 // G4cout<<"j-1 = "<<j-1<<"; alpha << 1077 // G4cout<<"j-1 = "<<j-1<<"; alpha2 = "<<alpha2<<"; sum = "<<sum<<G4endl;
1080 } 1078 }
1081 fAngleTable->insertAt(i, angleVector); 1079 fAngleTable->insertAt(i, angleVector);
1082 1080
1083 // delete[] angleVector; 1081 // delete[] angleVector;
1084 // delete[] angleBins; 1082 // delete[] angleBins;
1085 } 1083 }
1086 return; 1084 return;
1087 } 1085 }
1088 1086
1089 ///////////////////////////////////////////// 1087 /////////////////////////////////////////////////////////////////////////////////
1090 // 1088 //
1091 // 1089 //
1092 1090
1093 G4double 1091 G4double
1094 G4DiffuseElastic:: GetScatteringAngle( G4int 1092 G4DiffuseElastic:: GetScatteringAngle( G4int iMomentum, G4int iAngle, G4double position )
1095 { 1093 {
1096 G4double x1, x2, y1, y2, randAngle; 1094 G4double x1, x2, y1, y2, randAngle;
1097 1095
1098 if( iAngle == 0 ) 1096 if( iAngle == 0 )
1099 { 1097 {
1100 randAngle = (*fAngleTable)(iMomentum)->Ge 1098 randAngle = (*fAngleTable)(iMomentum)->GetLowEdgeEnergy(iAngle);
1101 // iAngle++; 1099 // iAngle++;
1102 } 1100 }
1103 else 1101 else
1104 { 1102 {
1105 if ( iAngle >= G4int((*fAngleTable)(iMome 1103 if ( iAngle >= G4int((*fAngleTable)(iMomentum)->GetVectorLength()) )
1106 { 1104 {
1107 iAngle = G4int((*fAngleTable)(iMomentum << 1105 iAngle = (*fAngleTable)(iMomentum)->GetVectorLength() - 1;
1108 } 1106 }
1109 y1 = (*(*fAngleTable)(iMomentum))(iAngle- 1107 y1 = (*(*fAngleTable)(iMomentum))(iAngle-1);
1110 y2 = (*(*fAngleTable)(iMomentum))(iAngle) 1108 y2 = (*(*fAngleTable)(iMomentum))(iAngle);
1111 1109
1112 x1 = (*fAngleTable)(iMomentum)->GetLowEdg 1110 x1 = (*fAngleTable)(iMomentum)->GetLowEdgeEnergy(iAngle-1);
1113 x2 = (*fAngleTable)(iMomentum)->GetLowEdg 1111 x2 = (*fAngleTable)(iMomentum)->GetLowEdgeEnergy(iAngle);
1114 1112
1115 if ( x1 == x2 ) randAngle = x2; 1113 if ( x1 == x2 ) randAngle = x2;
1116 else 1114 else
1117 { 1115 {
1118 if ( y1 == y2 ) randAngle = x1 + ( x2 - 1116 if ( y1 == y2 ) randAngle = x1 + ( x2 - x1 )*G4UniformRand();
1119 else 1117 else
1120 { 1118 {
1121 randAngle = x1 + ( position - y1 )*( 1119 randAngle = x1 + ( position - y1 )*( x2 - x1 )/( y2 - y1 );
1122 } 1120 }
1123 } 1121 }
1124 } 1122 }
1125 return randAngle; 1123 return randAngle;
1126 } 1124 }
1127 1125
1128 1126
1129 1127
1130 ///////////////////////////////////////////// 1128 ////////////////////////////////////////////////////////////////////////////
1131 // 1129 //
1132 // Return scattering angle sampled in lab sys 1130 // Return scattering angle sampled in lab system (target at rest)
1133 1131
1134 1132
1135 1133
1136 G4double 1134 G4double
1137 G4DiffuseElastic::SampleThetaLab( const G4Had 1135 G4DiffuseElastic::SampleThetaLab( const G4HadProjectile* aParticle,
1138 G4dou 1136 G4double tmass, G4double A)
1139 { 1137 {
1140 const G4ParticleDefinition* theParticle = a 1138 const G4ParticleDefinition* theParticle = aParticle->GetDefinition();
1141 G4double m1 = theParticle->GetPDGMass(); 1139 G4double m1 = theParticle->GetPDGMass();
1142 G4double plab = aParticle->GetTotalMomentum 1140 G4double plab = aParticle->GetTotalMomentum();
1143 G4LorentzVector lv1 = aParticle->Get4Moment 1141 G4LorentzVector lv1 = aParticle->Get4Momentum();
1144 G4LorentzVector lv(0.0,0.0,0.0,tmass); 1142 G4LorentzVector lv(0.0,0.0,0.0,tmass);
1145 lv += lv1; 1143 lv += lv1;
1146 1144
1147 G4ThreeVector bst = lv.boostVector(); 1145 G4ThreeVector bst = lv.boostVector();
1148 lv1.boost(-bst); 1146 lv1.boost(-bst);
1149 1147
1150 G4ThreeVector p1 = lv1.vect(); 1148 G4ThreeVector p1 = lv1.vect();
1151 G4double ptot = p1.mag(); 1149 G4double ptot = p1.mag();
1152 G4double tmax = 4.0*ptot*ptot; 1150 G4double tmax = 4.0*ptot*ptot;
1153 G4double t = 0.0; 1151 G4double t = 0.0;
1154 1152
1155 1153
1156 // 1154 //
1157 // Sample t 1155 // Sample t
1158 // 1156 //
1159 1157
1160 t = SampleT( theParticle, ptot, A); 1158 t = SampleT( theParticle, ptot, A);
1161 1159
1162 // NaN finder 1160 // NaN finder
1163 if(!(t < 0.0 || t >= 0.0)) 1161 if(!(t < 0.0 || t >= 0.0))
1164 { 1162 {
1165 if (verboseLevel > 0) 1163 if (verboseLevel > 0)
1166 { 1164 {
1167 G4cout << "G4DiffuseElastic:WARNING: A 1165 G4cout << "G4DiffuseElastic:WARNING: A = " << A
1168 << " mom(GeV)= " << plab/GeV 1166 << " mom(GeV)= " << plab/GeV
1169 << " S-wave will be sampled" 1167 << " S-wave will be sampled"
1170 << G4endl; 1168 << G4endl;
1171 } 1169 }
1172 t = G4UniformRand()*tmax; 1170 t = G4UniformRand()*tmax;
1173 } 1171 }
1174 if(verboseLevel>1) 1172 if(verboseLevel>1)
1175 { 1173 {
1176 G4cout <<" t= " << t << " tmax= " << tmax 1174 G4cout <<" t= " << t << " tmax= " << tmax
1177 << " ptot= " << ptot << G4endl; 1175 << " ptot= " << ptot << G4endl;
1178 } 1176 }
1179 // Sampling of angles in CM system 1177 // Sampling of angles in CM system
1180 1178
1181 G4double phi = G4UniformRand()*twopi; 1179 G4double phi = G4UniformRand()*twopi;
1182 G4double cost = 1. - 2.0*t/tmax; 1180 G4double cost = 1. - 2.0*t/tmax;
1183 G4double sint; 1181 G4double sint;
1184 1182
1185 if( cost >= 1.0 ) 1183 if( cost >= 1.0 )
1186 { 1184 {
1187 cost = 1.0; 1185 cost = 1.0;
1188 sint = 0.0; 1186 sint = 0.0;
1189 } 1187 }
1190 else if( cost <= -1.0) 1188 else if( cost <= -1.0)
1191 { 1189 {
1192 cost = -1.0; 1190 cost = -1.0;
1193 sint = 0.0; 1191 sint = 0.0;
1194 } 1192 }
1195 else 1193 else
1196 { 1194 {
1197 sint = std::sqrt((1.0-cost)*(1.0+cost)); 1195 sint = std::sqrt((1.0-cost)*(1.0+cost));
1198 } 1196 }
1199 if (verboseLevel>1) 1197 if (verboseLevel>1)
1200 { 1198 {
1201 G4cout << "cos(t)=" << cost << " std::sin 1199 G4cout << "cos(t)=" << cost << " std::sin(t)=" << sint << G4endl;
1202 } 1200 }
1203 G4ThreeVector v1(sint*std::cos(phi),sint*st 1201 G4ThreeVector v1(sint*std::cos(phi),sint*std::sin(phi),cost);
1204 v1 *= ptot; 1202 v1 *= ptot;
1205 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),s 1203 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),std::sqrt(ptot*ptot + m1*m1));
1206 1204
1207 nlv1.boost(bst); 1205 nlv1.boost(bst);
1208 1206
1209 G4ThreeVector np1 = nlv1.vect(); 1207 G4ThreeVector np1 = nlv1.vect();
1210 1208
1211 // G4double theta = std::acos( np1.z()/np 1209 // G4double theta = std::acos( np1.z()/np1.mag() ); // degree;
1212 1210
1213 G4double theta = np1.theta(); 1211 G4double theta = np1.theta();
1214 1212
1215 return theta; 1213 return theta;
1216 } 1214 }
1217 1215
1218 ///////////////////////////////////////////// 1216 ////////////////////////////////////////////////////////////////////////////
1219 // 1217 //
1220 // Return scattering angle in lab system (tar 1218 // Return scattering angle in lab system (target at rest) knowing theta in CMS
1221 1219
1222 1220
1223 1221
1224 G4double 1222 G4double
1225 G4DiffuseElastic::ThetaCMStoThetaLab( const G 1223 G4DiffuseElastic::ThetaCMStoThetaLab( const G4DynamicParticle* aParticle,
1226 G4dou 1224 G4double tmass, G4double thetaCMS)
1227 { 1225 {
1228 const G4ParticleDefinition* theParticle = a 1226 const G4ParticleDefinition* theParticle = aParticle->GetDefinition();
1229 G4double m1 = theParticle->GetPDGMass(); 1227 G4double m1 = theParticle->GetPDGMass();
1230 // G4double plab = aParticle->GetTotalMomen 1228 // G4double plab = aParticle->GetTotalMomentum();
1231 G4LorentzVector lv1 = aParticle->Get4Moment 1229 G4LorentzVector lv1 = aParticle->Get4Momentum();
1232 G4LorentzVector lv(0.0,0.0,0.0,tmass); 1230 G4LorentzVector lv(0.0,0.0,0.0,tmass);
1233 1231
1234 lv += lv1; 1232 lv += lv1;
1235 1233
1236 G4ThreeVector bst = lv.boostVector(); 1234 G4ThreeVector bst = lv.boostVector();
1237 1235
1238 lv1.boost(-bst); 1236 lv1.boost(-bst);
1239 1237
1240 G4ThreeVector p1 = lv1.vect(); 1238 G4ThreeVector p1 = lv1.vect();
1241 G4double ptot = p1.mag(); 1239 G4double ptot = p1.mag();
1242 1240
1243 G4double phi = G4UniformRand()*twopi; 1241 G4double phi = G4UniformRand()*twopi;
1244 G4double cost = std::cos(thetaCMS); 1242 G4double cost = std::cos(thetaCMS);
1245 G4double sint; 1243 G4double sint;
1246 1244
1247 if( cost >= 1.0 ) 1245 if( cost >= 1.0 )
1248 { 1246 {
1249 cost = 1.0; 1247 cost = 1.0;
1250 sint = 0.0; 1248 sint = 0.0;
1251 } 1249 }
1252 else if( cost <= -1.0) 1250 else if( cost <= -1.0)
1253 { 1251 {
1254 cost = -1.0; 1252 cost = -1.0;
1255 sint = 0.0; 1253 sint = 0.0;
1256 } 1254 }
1257 else 1255 else
1258 { 1256 {
1259 sint = std::sqrt((1.0-cost)*(1.0+cost)); 1257 sint = std::sqrt((1.0-cost)*(1.0+cost));
1260 } 1258 }
1261 if (verboseLevel>1) 1259 if (verboseLevel>1)
1262 { 1260 {
1263 G4cout << "cos(tcms)=" << cost << " std:: 1261 G4cout << "cos(tcms)=" << cost << " std::sin(tcms)=" << sint << G4endl;
1264 } 1262 }
1265 G4ThreeVector v1(sint*std::cos(phi),sint*st 1263 G4ThreeVector v1(sint*std::cos(phi),sint*std::sin(phi),cost);
1266 v1 *= ptot; 1264 v1 *= ptot;
1267 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),s 1265 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),std::sqrt(ptot*ptot + m1*m1));
1268 1266
1269 nlv1.boost(bst); 1267 nlv1.boost(bst);
1270 1268
1271 G4ThreeVector np1 = nlv1.vect(); 1269 G4ThreeVector np1 = nlv1.vect();
1272 1270
1273 1271
1274 G4double thetaLab = np1.theta(); 1272 G4double thetaLab = np1.theta();
1275 1273
1276 return thetaLab; 1274 return thetaLab;
1277 } 1275 }
1278 ///////////////////////////////////////////// 1276 ////////////////////////////////////////////////////////////////////////////
1279 // 1277 //
1280 // Return scattering angle in CMS system (tar 1278 // Return scattering angle in CMS system (target at rest) knowing theta in Lab
1281 1279
1282 1280
1283 1281
1284 G4double 1282 G4double
1285 G4DiffuseElastic::ThetaLabToThetaCMS( const G 1283 G4DiffuseElastic::ThetaLabToThetaCMS( const G4DynamicParticle* aParticle,
1286 G4dou 1284 G4double tmass, G4double thetaLab)
1287 { 1285 {
1288 const G4ParticleDefinition* theParticle = a 1286 const G4ParticleDefinition* theParticle = aParticle->GetDefinition();
1289 G4double m1 = theParticle->GetPDGMass(); 1287 G4double m1 = theParticle->GetPDGMass();
1290 G4double plab = aParticle->GetTotalMomentum 1288 G4double plab = aParticle->GetTotalMomentum();
1291 G4LorentzVector lv1 = aParticle->Get4Moment 1289 G4LorentzVector lv1 = aParticle->Get4Momentum();
1292 G4LorentzVector lv(0.0,0.0,0.0,tmass); 1290 G4LorentzVector lv(0.0,0.0,0.0,tmass);
1293 1291
1294 lv += lv1; 1292 lv += lv1;
1295 1293
1296 G4ThreeVector bst = lv.boostVector(); 1294 G4ThreeVector bst = lv.boostVector();
1297 1295
1298 // lv1.boost(-bst); 1296 // lv1.boost(-bst);
1299 1297
1300 // G4ThreeVector p1 = lv1.vect(); 1298 // G4ThreeVector p1 = lv1.vect();
1301 // G4double ptot = p1.mag(); 1299 // G4double ptot = p1.mag();
1302 1300
1303 G4double phi = G4UniformRand()*twopi; 1301 G4double phi = G4UniformRand()*twopi;
1304 G4double cost = std::cos(thetaLab); 1302 G4double cost = std::cos(thetaLab);
1305 G4double sint; 1303 G4double sint;
1306 1304
1307 if( cost >= 1.0 ) 1305 if( cost >= 1.0 )
1308 { 1306 {
1309 cost = 1.0; 1307 cost = 1.0;
1310 sint = 0.0; 1308 sint = 0.0;
1311 } 1309 }
1312 else if( cost <= -1.0) 1310 else if( cost <= -1.0)
1313 { 1311 {
1314 cost = -1.0; 1312 cost = -1.0;
1315 sint = 0.0; 1313 sint = 0.0;
1316 } 1314 }
1317 else 1315 else
1318 { 1316 {
1319 sint = std::sqrt((1.0-cost)*(1.0+cost)); 1317 sint = std::sqrt((1.0-cost)*(1.0+cost));
1320 } 1318 }
1321 if (verboseLevel>1) 1319 if (verboseLevel>1)
1322 { 1320 {
1323 G4cout << "cos(tlab)=" << cost << " std:: 1321 G4cout << "cos(tlab)=" << cost << " std::sin(tlab)=" << sint << G4endl;
1324 } 1322 }
1325 G4ThreeVector v1(sint*std::cos(phi),sint*st 1323 G4ThreeVector v1(sint*std::cos(phi),sint*std::sin(phi),cost);
1326 v1 *= plab; 1324 v1 *= plab;
1327 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),s 1325 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),std::sqrt(plab*plab + m1*m1));
1328 1326
1329 nlv1.boost(-bst); 1327 nlv1.boost(-bst);
1330 1328
1331 G4ThreeVector np1 = nlv1.vect(); 1329 G4ThreeVector np1 = nlv1.vect();
1332 1330
1333 1331
1334 G4double thetaCMS = np1.theta(); 1332 G4double thetaCMS = np1.theta();
1335 1333
1336 return thetaCMS; 1334 return thetaCMS;
1337 } 1335 }
1338 1336
1339 ///////////////////////////////////////////// 1337 ///////////////////////////////////////////////////////////////////////////////
1340 // 1338 //
1341 // Test for given particle and element table 1339 // Test for given particle and element table of momentum, angle probability.
1342 // For the moment in lab system. 1340 // For the moment in lab system.
1343 1341
1344 void G4DiffuseElastic::TestAngleTable(const G 1342 void G4DiffuseElastic::TestAngleTable(const G4ParticleDefinition* theParticle, G4double partMom,
1345 G 1343 G4double Z, G4double A)
1346 { 1344 {
1347 fAtomicNumber = Z; // atomic number 1345 fAtomicNumber = Z; // atomic number
1348 fAtomicWeight = A; // number of nucleo 1346 fAtomicWeight = A; // number of nucleons
1349 fNuclearRadius = CalculateNuclearRad(fAtomi 1347 fNuclearRadius = CalculateNuclearRad(fAtomicWeight);
1350 1348
1351 1349
1352 1350
1353 G4cout<<"G4DiffuseElastic::TestAngleTable() 1351 G4cout<<"G4DiffuseElastic::TestAngleTable() init the element with Z = "
1354 <<Z<<"; and A = "<<A<<G4endl; 1352 <<Z<<"; and A = "<<A<<G4endl;
1355 1353
1356 fElementNumberVector.push_back(fAtomicNumbe 1354 fElementNumberVector.push_back(fAtomicNumber);
1357 1355
1358 1356
1359 1357
1360 1358
1361 G4int i=0, j; 1359 G4int i=0, j;
1362 G4double a = 0., z = theParticle->GetPDGCha 1360 G4double a = 0., z = theParticle->GetPDGCharge(), m1 = fParticle->GetPDGMass();
1363 G4double alpha1=0., alpha2=0., alphaMax=0., 1361 G4double alpha1=0., alpha2=0., alphaMax=0., alphaCoulomb=0.;
1364 G4double deltaL10 = 0., deltaL96 = 0., delt 1362 G4double deltaL10 = 0., deltaL96 = 0., deltaAG = 0.;
1365 G4double sumL10 = 0.,sumL96 = 0.,sumAG = 0. 1363 G4double sumL10 = 0.,sumL96 = 0.,sumAG = 0.;
1366 G4double epsilon = 0.001; 1364 G4double epsilon = 0.001;
1367 1365
1368 G4Integrator<G4DiffuseElastic,G4double(G4Di 1366 G4Integrator<G4DiffuseElastic,G4double(G4DiffuseElastic::*)(G4double)> integral;
1369 1367
1370 fAngleTable = new G4PhysicsTable(fEnergyBin 1368 fAngleTable = new G4PhysicsTable(fEnergyBin);
1371 1369
1372 fWaveVector = partMom/hbarc; 1370 fWaveVector = partMom/hbarc;
1373 1371
1374 G4double kR = fWaveVector*fNuclearRadiu 1372 G4double kR = fWaveVector*fNuclearRadius;
1375 G4double kR2 = kR*kR; 1373 G4double kR2 = kR*kR;
1376 G4double kRmax = 10.6; // 10.6, 18, 10.174 1374 G4double kRmax = 10.6; // 10.6, 18, 10.174; ~ 3 maxima of J1 or 15., 25.
1377 G4double kRcoul = 1.2; // 1.4, 2.5; // on t 1375 G4double kRcoul = 1.2; // 1.4, 2.5; // on the first slope of J1
1378 1376
1379 alphaMax = kRmax*kRmax/kR2; 1377 alphaMax = kRmax*kRmax/kR2;
1380 1378
1381 if (alphaMax > 4.) alphaMax = 4.; // vmg05 1379 if (alphaMax > 4.) alphaMax = 4.; // vmg05-02-09: was pi2
1382 1380
1383 alphaCoulomb = kRcoul*kRcoul/kR2; 1381 alphaCoulomb = kRcoul*kRcoul/kR2;
1384 1382
1385 if( z ) 1383 if( z )
1386 { 1384 {
1387 a = partMom/m1; // beta*gamma 1385 a = partMom/m1; // beta*gamma for m1
1388 fBeta = a/std::sqrt(1+a*a); 1386 fBeta = a/std::sqrt(1+a*a);
1389 fZommerfeld = CalculateZommerfeld( fBet 1387 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
1390 fAm = CalculateAm( partMom, fZo 1388 fAm = CalculateAm( partMom, fZommerfeld, fAtomicNumber);
1391 } 1389 }
1392 G4PhysicsFreeVector* angleVector = new G4Ph 1390 G4PhysicsFreeVector* angleVector = new G4PhysicsFreeVector(fAngleBin-1);
1393 1391
1394 // G4PhysicsLogVector* angleBins = new G4P 1392 // G4PhysicsLogVector* angleBins = new G4PhysicsLogVector( 0.001*alphaMax, alphaMax, fAngleBin );
1395 1393
1396 1394
1397 fAddCoulomb = false; 1395 fAddCoulomb = false;
1398 1396
1399 for(j = 1; j < fAngleBin; j++) 1397 for(j = 1; j < fAngleBin; j++)
1400 { 1398 {
1401 // alpha1 = angleBins->GetLowEdgeEnergy 1399 // alpha1 = angleBins->GetLowEdgeEnergy(j-1);
1402 // alpha2 = angleBins->GetLowEdgeEnergy 1400 // alpha2 = angleBins->GetLowEdgeEnergy(j);
1403 1401
1404 alpha1 = alphaMax*(j-1)/fAngleBin; 1402 alpha1 = alphaMax*(j-1)/fAngleBin;
1405 alpha2 = alphaMax*( j )/fAngleBin; 1403 alpha2 = alphaMax*( j )/fAngleBin;
1406 1404
1407 if( ( alpha2 > alphaCoulomb ) && z ) fAdd 1405 if( ( alpha2 > alphaCoulomb ) && z ) fAddCoulomb = true;
1408 1406
1409 deltaL10 = integral.Legendre10(this, &G4D 1407 deltaL10 = integral.Legendre10(this, &G4DiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1410 deltaL96 = integral.Legendre96(this, &G4D 1408 deltaL96 = integral.Legendre96(this, &G4DiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1411 deltaAG = integral.AdaptiveGauss(this, & 1409 deltaAG = integral.AdaptiveGauss(this, &G4DiffuseElastic::GetIntegrandFunction,
1412 alpha1 1410 alpha1, alpha2,epsilon);
1413 1411
1414 // G4cout<<alpha1<<"\t"<<std::sqrt(alph 1412 // G4cout<<alpha1<<"\t"<<std::sqrt(alpha1)/degree<<"\t"
1415 // <<deltaL10<<"\t"<<deltaL96<<"\t" 1413 // <<deltaL10<<"\t"<<deltaL96<<"\t"<<deltaAG<<G4endl;
1416 1414
1417 sumL10 += deltaL10; 1415 sumL10 += deltaL10;
1418 sumL96 += deltaL96; 1416 sumL96 += deltaL96;
1419 sumAG += deltaAG; 1417 sumAG += deltaAG;
1420 1418
1421 G4cout<<alpha1<<"\t"<<std::sqrt(alpha1)/d 1419 G4cout<<alpha1<<"\t"<<std::sqrt(alpha1)/degree<<"\t"
1422 <<sumL10<<"\t"<<sumL96<<"\t"<<sum 1420 <<sumL10<<"\t"<<sumL96<<"\t"<<sumAG<<G4endl;
1423 1421
1424 angleVector->PutValue( j-1 , alpha1, sumL 1422 angleVector->PutValue( j-1 , alpha1, sumL10 ); // alpha2
1425 } 1423 }
1426 fAngleTable->insertAt(i,angleVector); 1424 fAngleTable->insertAt(i,angleVector);
1427 fAngleBank.push_back(fAngleTable); 1425 fAngleBank.push_back(fAngleTable);
1428 1426
1429 /* 1427 /*
1430 // Integral over all angle range - Bad accu 1428 // Integral over all angle range - Bad accuracy !!!
1431 1429
1432 sumL10 = integral.Legendre10(this, &G4Diffu 1430 sumL10 = integral.Legendre10(this, &G4DiffuseElastic::GetIntegrandFunction, 0., alpha2);
1433 sumL96 = integral.Legendre96(this, &G4Diffu 1431 sumL96 = integral.Legendre96(this, &G4DiffuseElastic::GetIntegrandFunction, 0., alpha2);
1434 sumAG = integral.AdaptiveGauss(this, &G4Di 1432 sumAG = integral.AdaptiveGauss(this, &G4DiffuseElastic::GetIntegrandFunction,
1435 0., al 1433 0., alpha2,epsilon);
1436 G4cout<<G4endl; 1434 G4cout<<G4endl;
1437 G4cout<<alpha2<<"\t"<<std::sqrt(alpha2)/deg 1435 G4cout<<alpha2<<"\t"<<std::sqrt(alpha2)/degree<<"\t"
1438 <<sumL10<<"\t"<<sumL96<<"\t"<<sum 1436 <<sumL10<<"\t"<<sumL96<<"\t"<<sumAG<<G4endl;
1439 */ 1437 */
1440 return; 1438 return;
1441 } 1439 }
1442 1440
1443 // 1441 //
1444 // 1442 //
1445 ///////////////////////////////////////////// 1443 /////////////////////////////////////////////////////////////////////////////////
1446 1444