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Wright (SLAC) 29 // Author: D.H. Wright (SLAC) // 30 // Date: 25 November 2014 30 // Date: 25 November 2014 // 31 // 31 // // 32 ////////////////////////////////////////////// 32 //////////////////////////////////////////////////////////////////////////////// 33 33 34 #include "G4ECDecay.hh" 34 #include "G4ECDecay.hh" 35 #include "G4IonTable.hh" 35 #include "G4IonTable.hh" 36 #include "Randomize.hh" 36 #include "Randomize.hh" 37 #include "G4ThreeVector.hh" 37 #include "G4ThreeVector.hh" 38 #include "G4DynamicParticle.hh" 38 #include "G4DynamicParticle.hh" 39 #include "G4DecayProducts.hh" 39 #include "G4DecayProducts.hh" 40 #include "G4VAtomDeexcitation.hh" 40 #include "G4VAtomDeexcitation.hh" 41 #include "G4AtomicShells.hh" 41 #include "G4AtomicShells.hh" 42 #include "G4Electron.hh" 42 #include "G4Electron.hh" 43 #include "G4LossTableManager.hh" 43 #include "G4LossTableManager.hh" 44 #include "G4PhysicalConstants.hh" 44 #include "G4PhysicalConstants.hh" 45 #include "G4SystemOfUnits.hh" 45 #include "G4SystemOfUnits.hh" 46 46 47 G4ECDecay::G4ECDecay(const G4ParticleDefinitio 47 G4ECDecay::G4ECDecay(const G4ParticleDefinition* theParentNucleus, 48 const G4double& branch, c 48 const G4double& branch, const G4double& Qvalue, 49 const G4double& excitatio 49 const G4double& excitationE, 50 const G4Ions::G4FloatLeve 50 const G4Ions::G4FloatLevelBase& flb, 51 const G4RadioactiveDecayM 51 const G4RadioactiveDecayMode& mode) 52 : G4NuclearDecay("electron capture", mode, ex 52 : G4NuclearDecay("electron capture", mode, excitationE, flb), transitionQ(Qvalue), 53 applyARM(true) 53 applyARM(true) 54 { 54 { 55 SetParent(theParentNucleus); // Store name 55 SetParent(theParentNucleus); // Store name of parent nucleus, delete G4MT_parent 56 SetBR(branch); 56 SetBR(branch); 57 57 58 SetNumberOfDaughters(2); 58 SetNumberOfDaughters(2); 59 G4IonTable* theIonTable = 59 G4IonTable* theIonTable = 60 (G4IonTable*)(G4ParticleTable::GetParticle 60 (G4IonTable*)(G4ParticleTable::GetParticleTable()->GetIonTable()); 61 G4int daughterZ = theParentNucleus->GetAtomi 61 G4int daughterZ = theParentNucleus->GetAtomicNumber() - 1; 62 G4int daughterA = theParentNucleus->GetAtomi 62 G4int daughterA = theParentNucleus->GetAtomicMass(); 63 SetDaughter(0, theIonTable->GetIon(daughterZ 63 SetDaughter(0, theIonTable->GetIon(daughterZ, daughterA, excitationE, flb) ); 64 SetDaughter(1, "nu_e"); 64 SetDaughter(1, "nu_e"); 65 DefineSubshellProbabilities(daughterZ, daugh << 66 } 65 } 67 66 68 67 69 G4ECDecay::~G4ECDecay() 68 G4ECDecay::~G4ECDecay() 70 {} 69 {} 71 70 72 71 73 G4DecayProducts* G4ECDecay::DecayIt(G4double) 72 G4DecayProducts* G4ECDecay::DecayIt(G4double) 74 { 73 { 75 // Fill G4MT_parent with theParentNucleus (s 74 // Fill G4MT_parent with theParentNucleus (stored by SetParent in ctor) 76 CheckAndFillParent(); 75 CheckAndFillParent(); 77 76 78 // Fill G4MT_daughters with alpha and residu 77 // Fill G4MT_daughters with alpha and residual nucleus (stored by SetDaughter) 79 CheckAndFillDaughters(); 78 CheckAndFillDaughters(); 80 79 81 // Get shell number of captured electron 80 // Get shell number of captured electron 82 G4int shellIndex = -1; 81 G4int shellIndex = -1; 83 G4double ran; << 84 switch (theMode) 82 switch (theMode) 85 { 83 { 86 case KshellEC: 84 case KshellEC: 87 shellIndex = 0; 85 shellIndex = 0; 88 break; 86 break; 89 case LshellEC: // PL1+PL2+PL3=1 << 87 case LshellEC: 90 ran=G4UniformRand(); << 88 shellIndex = G4int(G4UniformRand()*3) + 1; 91 if (ran <= PL1) shellIndex =1; << 92 else if (ran<= (PL1+PL2)) shellIndex =2; << 93 else shellIndex =3; << 94 break; 89 break; 95 case MshellEC: // PM1+PM2+PM3=1 << 90 case MshellEC: 96 ran=G4UniformRand(); << 91 shellIndex = G4int(G4UniformRand()*3) + 4; 97 if (ran < PM1) shellIndex =4; << 98 else if (ran< (PM1+PM2)) shellIndex =5; << 99 else shellIndex = 6; << 100 break; << 101 case NshellEC: // PN1+PN2+PN3=1 << 102 ran=G4UniformRand(); << 103 if (ran < PN1) shellIndex = 9; << 104 else if (ran<= (PN1+PN2)) shellIndex =2; << 105 else shellIndex =10; << 106 break; 92 break; 107 default: 93 default: 108 G4Exception("G4ECDecay::DecayIt()", "HAD 94 G4Exception("G4ECDecay::DecayIt()", "HAD_RDM_009", 109 FatalException, "Invalid ele 95 FatalException, "Invalid electron shell selected"); 110 } 96 } 111 97 112 // Initialize decay products with parent nuc 98 // Initialize decay products with parent nucleus at rest 113 G4DynamicParticle parentParticle(G4MT_parent 99 G4DynamicParticle parentParticle(G4MT_parent, G4ThreeVector(0,0,0), 0.0); 114 G4DecayProducts* products = new G4DecayProdu 100 G4DecayProducts* products = new G4DecayProducts(parentParticle); 115 G4double eBind = 0.0; 101 G4double eBind = 0.0; 116 102 117 // G4LossTableManager must already be initia 103 // G4LossTableManager must already be initialized with G4UAtomicDeexcitation 118 // This is currently done in G4RadioactiveDe 104 // This is currently done in G4RadioactiveDecay::BuildPhysicsTable 119 G4VAtomDeexcitation* atomDeex = 105 G4VAtomDeexcitation* atomDeex = 120 G4LossTableManager::Instance()->Atom 106 G4LossTableManager::Instance()->AtomDeexcitation(); 121 std::vector<G4DynamicParticle*> armProducts; 107 std::vector<G4DynamicParticle*> armProducts; 122 108 123 if (applyARM) { 109 if (applyARM) { 124 if (nullptr != atomDeex) { << 110 if (atomDeex) { 125 G4int aZ = G4MT_daughters[0]->GetAtomicN 111 G4int aZ = G4MT_daughters[0]->GetAtomicNumber(); 126 G4int nShells = G4AtomicShells::GetNumbe 112 G4int nShells = G4AtomicShells::GetNumberOfShells(aZ); 127 if (shellIndex >= nShells) shellIndex = 113 if (shellIndex >= nShells) shellIndex = nShells; 128 G4AtomicShellEnumerator as = G4AtomicShe 114 G4AtomicShellEnumerator as = G4AtomicShellEnumerator(shellIndex); 129 const G4AtomicShell* shell = atomDeex->G 115 const G4AtomicShell* shell = atomDeex->GetAtomicShell(aZ, as); 130 eBind = shell->BindingEnergy(); 116 eBind = shell->BindingEnergy(); 131 if (atomDeex->IsFluoActive() && aZ > 5 & << 117 if (atomDeex->IsFluoActive() && aZ > 5 && aZ < 100) { 132 // Do atomic relaxation 118 // Do atomic relaxation 133 // VI, SI << 119 // VI, SI 134 // Allows fixing of Bugzilla 1727 << 120 // Allows fixing of Bugzilla 1727 135 //const G4double deexLimit = 0.1*keV; << 121 //const G4double deexLimit = 0.1*keV; 136 G4double deexLimit = 0.1*keV; << 122 G4double deexLimit = 0.1*keV; 137 if (G4EmParameters::Instance()->Deexcitation << 123 if (G4EmParameters::Instance()->DeexcitationIgnoreCut()) deexLimit =0.; 138 << 124 // 139 atomDeex->GenerateParticles(&armProduc 125 atomDeex->GenerateParticles(&armProducts, shell, aZ, deexLimit, deexLimit); 140 } 126 } 141 127 142 G4double productEnergy = 0.; 128 G4double productEnergy = 0.; 143 for (std::size_t i = 0; i < armProducts. << 129 for (G4int i = 0; i < G4int(armProducts.size()); i++) 144 productEnergy += armProducts[i]->GetKi 130 productEnergy += armProducts[i]->GetKineticEnergy(); 145 } << 131 146 G4double deficit = shell->BindingEnergy( 132 G4double deficit = shell->BindingEnergy() - productEnergy; 147 if (deficit > 0.0) { 133 if (deficit > 0.0) { 148 // Add a dummy electron to make up ext 134 // Add a dummy electron to make up extra energy 149 G4double cosTh = 1.-2.*G4UniformRand() 135 G4double cosTh = 1.-2.*G4UniformRand(); 150 G4double sinTh = std::sqrt(1.- cosTh*c 136 G4double sinTh = std::sqrt(1.- cosTh*cosTh); 151 G4double phi = twopi*G4UniformRand(); 137 G4double phi = twopi*G4UniformRand(); 152 138 153 G4ThreeVector electronDirection(sinTh* 139 G4ThreeVector electronDirection(sinTh*std::sin(phi), 154 sinTh* 140 sinTh*std::cos(phi), cosTh); 155 G4DynamicParticle* extra = 141 G4DynamicParticle* extra = 156 new G4DynamicParticle(G4Electron::El 142 new G4DynamicParticle(G4Electron::Electron(), electronDirection, 157 deficit); 143 deficit); 158 armProducts.push_back(extra); 144 armProducts.push_back(extra); 159 } 145 } 160 } // atomDeex 146 } // atomDeex 161 } // applyARM 147 } // applyARM 162 148 163 G4double daughterMass = G4MT_daughters[0]->G 149 G4double daughterMass = G4MT_daughters[0]->GetPDGMass(); 164 150 165 // CM momentum using Q value corrected for b 151 // CM momentum using Q value corrected for binding energy of captured electron 166 G4double Q = transitionQ - eBind; << 152 G4double Q = transitionQ - eBind; 167 << 168 // Negative transitionQ values for some rare << 169 // Absolute values in these cases are small << 170 if (Q < 0.0) Q = 0.0; << 171 << 172 G4double cmMomentum = Q*(Q + 2.*daughterMass 153 G4double cmMomentum = Q*(Q + 2.*daughterMass)/(Q + daughterMass)/2.; 173 154 174 G4double costheta = 2.*G4UniformRand() - 1.0 155 G4double costheta = 2.*G4UniformRand() - 1.0; 175 G4double sintheta = std::sqrt(1.0 - costheta 156 G4double sintheta = std::sqrt(1.0 - costheta*costheta); 176 G4double phi = twopi*G4UniformRand()*rad; 157 G4double phi = twopi*G4UniformRand()*rad; 177 G4ThreeVector direction(sintheta*std::cos(ph 158 G4ThreeVector direction(sintheta*std::cos(phi),sintheta*std::sin(phi), 178 costheta); 159 costheta); 179 G4double KE = cmMomentum; 160 G4double KE = cmMomentum; 180 G4DynamicParticle* daughterParticle = 161 G4DynamicParticle* daughterParticle = 181 new G4DynamicParticle(G4MT_daughters[1], d 162 new G4DynamicParticle(G4MT_daughters[1], direction, KE, 0.0); 182 products->PushProducts(daughterParticle); 163 products->PushProducts(daughterParticle); 183 164 184 KE = std::sqrt(cmMomentum*cmMomentum + daugh 165 KE = std::sqrt(cmMomentum*cmMomentum + daughterMass*daughterMass) - daughterMass; 185 daughterParticle = 166 daughterParticle = 186 new G4DynamicParticle(G4MT_daughters[0], - 167 new G4DynamicParticle(G4MT_daughters[0], -1.0*direction, KE, daughterMass); 187 products->PushProducts(daughterParticle); 168 products->PushProducts(daughterParticle); 188 169 189 std::size_t nArm = armProducts.size(); << 170 G4int nArm = armProducts.size(); 190 if (nArm > 0) { 171 if (nArm > 0) { 191 G4ThreeVector bst = daughterParticle->Get4 172 G4ThreeVector bst = daughterParticle->Get4Momentum().boostVector(); 192 for (std::size_t i = 0; i < nArm; ++i) { << 173 for (G4int i = 0; i < nArm; ++i) { 193 G4DynamicParticle* dp = armProducts[i]; 174 G4DynamicParticle* dp = armProducts[i]; 194 G4LorentzVector lv = dp->Get4Momentum(). 175 G4LorentzVector lv = dp->Get4Momentum().boost(bst); 195 dp->Set4Momentum(lv); 176 dp->Set4Momentum(lv); 196 products->PushProducts(dp); 177 products->PushProducts(dp); 197 } 178 } 198 } 179 } 199 180 200 // Energy conservation check 181 // Energy conservation check 201 /* 182 /* 202 G4int newSize = products->entries(); 183 G4int newSize = products->entries(); 203 G4DynamicParticle* temp = 0; 184 G4DynamicParticle* temp = 0; 204 G4double KEsum = 0.0; 185 G4double KEsum = 0.0; 205 for (G4int i = 0; i < newSize; i++) { 186 for (G4int i = 0; i < newSize; i++) { 206 temp = products->operator[](i); 187 temp = products->operator[](i); 207 KEsum += temp->GetKineticEnergy(); 188 KEsum += temp->GetKineticEnergy(); 208 } 189 } 209 190 210 G4double eCons = (transitionQ - KEsum)/keV; 191 G4double eCons = (transitionQ - KEsum)/keV; 211 G4cout << " EC check: Ediff (keV) = " << eCo 192 G4cout << " EC check: Ediff (keV) = " << eCons << G4endl; 212 */ 193 */ 213 return products; 194 return products; 214 } 195 } 215 196 216 197 217 void G4ECDecay::DumpNuclearInfo() 198 void G4ECDecay::DumpNuclearInfo() 218 { 199 { 219 G4cout << " G4ECDecay of parent nucleus " << 200 G4cout << " G4ECDecay of parent nucleus " << GetParentName() << " from "; 220 if (theMode == 3) { 201 if (theMode == 3) { 221 G4cout << "K shell"; 202 G4cout << "K shell"; 222 } else if (theMode == 4) { 203 } else if (theMode == 4) { 223 G4cout << "L shell"; 204 G4cout << "L shell"; 224 } else if (theMode == 5) { 205 } else if (theMode == 5) { 225 G4cout << "M shell"; 206 G4cout << "M shell"; 226 } 207 } 227 else if (theMode == 6) { << 228 G4cout << "N shell"; << 229 } << 230 G4cout << G4endl; 208 G4cout << G4endl; 231 G4cout << " to " << GetDaughterName(0) << " 209 G4cout << " to " << GetDaughterName(0) << " + " << GetDaughterName(1) 232 << " with branching ratio " << GetBR( 210 << " with branching ratio " << GetBR() << "% and Q value " 233 << transitionQ << G4endl; 211 << transitionQ << G4endl; 234 } 212 } 235 void G4ECDecay::DefineSubshellProbabilities(G4 << 236 { //Implementation for the case of allowed tra << 237 //PL1+PL2=1. , PM1+PM2=1., PN1+PN2=1. << 238 PL1 = 1./(1+PL2overPL1[Z-1]); << 239 PL2 = PL1*PL2overPL1[Z-1]; << 240 PM1 = 1./(1+PM2overPM1[Z-1]); << 241 PM2 = PM1*PM2overPM1[Z-1]; << 242 PN1 = 1./(1+PN2overPN1[Z-1]); << 243 PN2 = PN1*PN2overPN1[Z-1]; << 244 } << 245 ////////////////////////////////////////////// << 246 // Table of subshell ratio probability PL2/PL1 << 247 // PL2/PL1 = (fL2/gL1)^2 << 248 // with gL1 and fL2 the bound electron radial << 249 // Bambynek et al., Rev. Modern Phy << 250 // For Z=18 interpolation between Z=17 and Z= << 251 ////////////////////////////////////////////// << 252 const G4double G4ECDecay::PL2overPL1[100] = { << 253 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 254 2.6438e-04, 3.5456e-04, 4.5790e-04, 6.15 << 255 1.4361e-03, 1.6886e-03, 1.9609e-03, 2.26 << 256 3.6338e-03, 4.0310e-03, 4.4541e-03, 4.89 << 257 6.9061e-03, 7.4607e-03, 8.0398e-03, 8.64 << 258 1.1284e-02, 1.2004e-02, 1.2744e-02, 1.35 << 259 1.6857e-02, 1.7764e-02, 1.8696e-02, 1.96 << 260 2.3788e-02, 2.4896e-02, 2.6036e-02, 2.72 << 261 3.2220e-02, 3.3561e-02, 3.4937e-02, 3.63 << 262 4.2399e-02, 4.4010e-02, 4.5668e-02, 4.73 << 263 5.4625e-02, 5.6565e-02, 5.8547e-02, 6.05 << 264 6.9336e-02, 7.1667e-02, 7.4075e-02, 7.65 << 265 8.7135e-02, 8.9995e-02, 9.2919e-02, 9.59 << 266 1.0899e-01, 1.1249e-01, 1.1613e-01, 1.19 << 267 1.3627e-01, 1.4071e-01}; << 268 ////////////////////////////////////////////// << 269 // Table of subshell ratio probability PM2/PM1 << 270 // PM2/PM1 = (fM2/gM1)^2 << 271 // with gM1 and fM2 the bound electron radial << 272 // Bambynek et al., Rev. Modern Phy << 273 ////////////////////////////////////////////// << 274 const G4double G4ECDecay::PM2overPM1[100] = { << 275 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 276 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 277 1.0210e-03, 1.2641e-03, 1.5231e-03, 1.79 << 278 3.3637e-03, 3.7909e-03, 4.2049e-03, 4.70 << 279 6.7045e-03, 7.2997e-03, 7.9438e-03, 8.62 << 280 1.1594e-02, 1.2408e-02, 1.3244e-02, 1.41 << 281 1.7910e-02, 1.8934e-02, 1.9986e-02, 2.10 << 282 2.5750e-02, 2.7006e-02, 2.8302e-02, 2.96 << 283 3.5328e-02, 3.6852e-02, 3.8414e-02, 4.00 << 284 4.6909e-02, 4.8767e-02, 5.0662e-02, 5.26 << 285 6.0930e-02, 6.3141e-02, 6.5413e-02, 6.77 << 286 7.7721e-02, 8.0408e-02, 8.3128e-02, 8.59 << 287 9.8025e-02, 1.0130e-01, 1.0463e-01, 1.08 << 288 1.2290e-01, 1.2688e-01, 1.3101e-01, 1.35 << 289 1.5384e-01, 1.5887e-01}; << 290 ////////////////////////////////////////////// << 291 // Table of subshell ratio probability PN2/PN1 << 292 // PN2/PN1 = (fN2/gN1)^2 << 293 // with gN1 and fN2 are the bound electron rad << 294 // Bambynek et al., Rev. Modern Phy << 295 // For Z=44 interpolation between Z=43 and Z= << 296 ////////////////////////////////////////////// << 297 const G4double G4ECDecay::PN2overPN1[100] = { << 298 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 299 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 300 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 301 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 302 0.0000e+00, 0.0000e+00, 0.0000e+00, 0.00 << 303 0.0000e+00, 9.6988e-03, 1.0797e-02, 1.17 << 304 1.5511e-02, 1.6579e-02, 1.7646e-02, 1.87 << 305 2.3710e-02, 2.5058e-02, 2.6438e-02, 2.78 << 306 3.3843e-02, 3.5377e-02, 3.6886e-02, 3.85 << 307 4.5470e-02, 4.7247e-02, 4.9138e-02, 5.10 << 308 5.9366e-02, 6.1800e-02, 6.3945e-02, 6.63 << 309 7.6538e-02, 7.9276e-02, 8.2070e-02, 8.49 << 310 9.7337e-02, 1.0069e-01, 1.0410e-01, 1.07 << 311 1.2282e-01, 1.2709e-01, 1.3114e-01, 1.35 << 312 1.5443e-01, 1.5954e-01}; << 313 213 314 214