[819] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // neutron_hp -- source file |
---|
| 27 | // J.P. Wellisch, Nov-1996 |
---|
| 28 | // A prototype of the low energy neutron transport model. |
---|
| 29 | // |
---|
| 30 | // 070523 bug fix for G4FPE_DEBUG on by A. Howard ( and T. Koi) |
---|
| 31 | // 071031 bug fix T. Koi on behalf of A. Howard |
---|
| 32 | // |
---|
| 33 | #include "G4NeutronHPChannel.hh" |
---|
| 34 | #include "G4NeutronHPFinalState.hh" |
---|
| 35 | #include "globals.hh" |
---|
| 36 | #include "G4HadTmpUtil.hh" |
---|
| 37 | |
---|
| 38 | G4double G4NeutronHPChannel::GetXsec(G4double energy) |
---|
| 39 | { |
---|
| 40 | return std::max(0., theChannelData->GetXsec(energy)); |
---|
| 41 | } |
---|
| 42 | |
---|
| 43 | G4double G4NeutronHPChannel::GetWeightedXsec(G4double energy, G4int isoNumber) |
---|
| 44 | { |
---|
| 45 | return theIsotopeWiseData[isoNumber].GetXsec(energy); |
---|
| 46 | } |
---|
| 47 | |
---|
| 48 | G4double G4NeutronHPChannel::GetFSCrossSection(G4double energy, G4int isoNumber) |
---|
| 49 | { |
---|
| 50 | return theFinalStates[isoNumber]->GetXsec(energy); |
---|
| 51 | } |
---|
| 52 | |
---|
| 53 | void G4NeutronHPChannel:: |
---|
| 54 | Init(G4Element * anElement, const G4String dirName, const G4String aFSType) |
---|
| 55 | { |
---|
| 56 | theFSType = aFSType; |
---|
| 57 | Init(anElement, dirName); |
---|
| 58 | } |
---|
| 59 | |
---|
| 60 | void G4NeutronHPChannel::Init(G4Element * anElement, const G4String dirName) |
---|
| 61 | { |
---|
| 62 | theDir = dirName; |
---|
| 63 | theElement = anElement; |
---|
| 64 | } |
---|
| 65 | |
---|
| 66 | G4bool G4NeutronHPChannel::Register(G4NeutronHPFinalState *theFS) |
---|
| 67 | { |
---|
| 68 | registerCount++; |
---|
| 69 | G4int Z = G4lrint(theElement->GetZ()); |
---|
| 70 | if(registerCount<5) |
---|
| 71 | { |
---|
| 72 | Z = Z-registerCount; |
---|
| 73 | } |
---|
| 74 | //if(Z=theElement->GetZ()-5) throw G4HadronicException(__FILE__, __LINE__, "Channel: Do not know what to do with this material"); |
---|
| 75 | // Bug fix by TK on behalf of AH |
---|
| 76 | if ( Z <=theElement->GetZ()-5 ) throw G4HadronicException(__FILE__, __LINE__, "Channel: Do not know what to do with this material"); |
---|
| 77 | G4int count = 0; |
---|
| 78 | if(registerCount==0) count = theElement->GetNumberOfIsotopes(); |
---|
| 79 | if(count == 0||registerCount!=0) count += |
---|
| 80 | theStableOnes.GetNumberOfIsotopes(Z); |
---|
| 81 | niso = count; |
---|
| 82 | delete [] theIsotopeWiseData; |
---|
| 83 | theIsotopeWiseData = new G4NeutronHPIsoData [niso]; |
---|
| 84 | delete [] active; |
---|
| 85 | active = new G4bool[niso]; |
---|
| 86 | delete [] theFinalStates; |
---|
| 87 | theFinalStates = new G4NeutronHPFinalState * [niso]; |
---|
| 88 | delete theChannelData; |
---|
| 89 | theChannelData = new G4NeutronHPVector; |
---|
| 90 | for(G4int i=0; i<niso; i++) |
---|
| 91 | { |
---|
| 92 | theFinalStates[i] = theFS->New(); |
---|
| 93 | } |
---|
| 94 | count = 0; |
---|
| 95 | G4int nIsos = niso; |
---|
| 96 | if(theElement->GetNumberOfIsotopes()!=0&®isterCount==0) |
---|
| 97 | { |
---|
| 98 | for (G4int i1=0; i1<nIsos; i1++) |
---|
| 99 | { |
---|
| 100 | // G4cout <<" Init: normal case"<<G4endl; |
---|
| 101 | G4int A = theElement->GetIsotope(i1)->GetN(); |
---|
| 102 | G4double frac = theElement->GetRelativeAbundanceVector()[i1]/perCent; |
---|
| 103 | theFinalStates[i1]->SetA_Z(A, Z); |
---|
| 104 | UpdateData(A, Z, count++, frac); |
---|
| 105 | } |
---|
| 106 | } else { |
---|
| 107 | //G4cout <<" Init: mean case: " |
---|
| 108 | // <<theStableOnes.GetNumberOfIsotopes(Z)<<" " |
---|
| 109 | // <<Z<<" "<<theElement |
---|
| 110 | // << G4endl; |
---|
| 111 | G4int first = theStableOnes.GetFirstIsotope(Z); |
---|
| 112 | for(G4int i1=0; |
---|
| 113 | i1<theStableOnes.GetNumberOfIsotopes(Z); |
---|
| 114 | i1++) |
---|
| 115 | { |
---|
| 116 | G4int A = theStableOnes.GetIsotopeNucleonCount(first+i1); |
---|
| 117 | G4double frac = theStableOnes.GetAbundance(first+i1); |
---|
| 118 | theFinalStates[i1]->SetA_Z(A, Z); |
---|
| 119 | UpdateData(A, Z, count++, frac); |
---|
| 120 | } |
---|
| 121 | } |
---|
| 122 | G4bool result = HasDataInAnyFinalState(); |
---|
| 123 | return result; |
---|
| 124 | } |
---|
| 125 | |
---|
| 126 | void G4NeutronHPChannel::UpdateData(G4int A, G4int Z, G4int index, G4double abundance) |
---|
| 127 | { |
---|
| 128 | theFinalStates[index]->Init(A, Z, theDir, theFSType); |
---|
| 129 | if(!theFinalStates[index]->HasAnyData()) return; // nothing there for exactly this isotope. |
---|
| 130 | |
---|
| 131 | // the above has put the X-sec into the FS |
---|
| 132 | theBuffer = 0; |
---|
| 133 | if(theFinalStates[index]->HasXsec()) |
---|
| 134 | { |
---|
| 135 | theBuffer = theFinalStates[index]->GetXsec(); |
---|
| 136 | theBuffer->Times(abundance/100.); |
---|
| 137 | theIsotopeWiseData[index].FillChannelData(theBuffer); |
---|
| 138 | } |
---|
| 139 | else // get data from CrossSection directory |
---|
| 140 | { |
---|
| 141 | G4String tString = "/CrossSection/"; |
---|
| 142 | active[index] = theIsotopeWiseData[index].Init(A, Z, abundance, theDir, tString); |
---|
| 143 | if(active[index]) theBuffer = theIsotopeWiseData[index].MakeChannelData(); |
---|
| 144 | } |
---|
| 145 | if(theBuffer != 0) Harmonise(theChannelData, theBuffer); |
---|
| 146 | } |
---|
| 147 | |
---|
| 148 | void G4NeutronHPChannel::Harmonise(G4NeutronHPVector *& theStore, G4NeutronHPVector * theNew) |
---|
| 149 | { |
---|
| 150 | G4int s = 0, n=0, m=0; |
---|
| 151 | G4NeutronHPVector * theMerge = new G4NeutronHPVector; |
---|
| 152 | G4NeutronHPVector * anActive = theStore; |
---|
| 153 | G4NeutronHPVector * aPassive = theNew; |
---|
| 154 | G4NeutronHPVector * tmp; |
---|
| 155 | G4int a = s, p = n, t; |
---|
| 156 | while (a<anActive->GetVectorLength()&&p<aPassive->GetVectorLength()) |
---|
| 157 | { |
---|
| 158 | if(anActive->GetEnergy(a) <= aPassive->GetEnergy(p)) |
---|
| 159 | { |
---|
| 160 | G4double xa = anActive->GetEnergy(a); |
---|
| 161 | theMerge->SetData(m, xa, anActive->GetXsec(a)+std::max(0., aPassive->GetXsec(xa)) ); |
---|
| 162 | m++; |
---|
| 163 | a++; |
---|
| 164 | G4double xp = aPassive->GetEnergy(p); |
---|
| 165 | if( std::abs(std::abs(xp-xa)/xa)<0.001 ) |
---|
| 166 | { |
---|
| 167 | p++; |
---|
| 168 | } |
---|
| 169 | } else { |
---|
| 170 | tmp = anActive; t=a; |
---|
| 171 | anActive = aPassive; a=p; |
---|
| 172 | aPassive = tmp; p=t; |
---|
| 173 | } |
---|
| 174 | } |
---|
| 175 | while (a!=anActive->GetVectorLength()) |
---|
| 176 | { |
---|
| 177 | theMerge->SetData(m++, anActive->GetEnergy(a), anActive->GetXsec(a)); |
---|
| 178 | a++; |
---|
| 179 | } |
---|
| 180 | while (p!=aPassive->GetVectorLength()) |
---|
| 181 | { |
---|
| 182 | if(std::abs(theMerge->GetEnergy(std::max(0,m-1))-aPassive->GetEnergy(p))/aPassive->GetEnergy(p)>0.001) |
---|
| 183 | theMerge->SetData(m++, aPassive->GetEnergy(p), aPassive->GetXsec(p)); |
---|
| 184 | p++; |
---|
| 185 | } |
---|
| 186 | delete theStore; |
---|
| 187 | theStore = theMerge; |
---|
| 188 | } |
---|
| 189 | |
---|
| 190 | #include "G4NeutronHPThermalBoost.hh" |
---|
| 191 | |
---|
| 192 | G4HadFinalState * G4NeutronHPChannel:: |
---|
| 193 | ApplyYourself(const G4HadProjectile & theTrack, G4int anIsotope) |
---|
| 194 | { |
---|
| 195 | // G4cout << "G4NeutronHPChannel::ApplyYourself+"<<niso<<G4endl; |
---|
| 196 | if(anIsotope != -1) return theFinalStates[anIsotope]->ApplyYourself(theTrack); |
---|
| 197 | G4double sum=0; |
---|
| 198 | G4int it=0; |
---|
| 199 | G4double * xsec = new G4double[niso]; |
---|
| 200 | G4NeutronHPThermalBoost aThermalE; |
---|
| 201 | for (G4int i=0; i<niso; i++) |
---|
| 202 | { |
---|
| 203 | if(theFinalStates[i]->HasAnyData()) |
---|
| 204 | { |
---|
| 205 | xsec[i] = theIsotopeWiseData[i].GetXsec(aThermalE.GetThermalEnergy(theTrack, |
---|
| 206 | theFinalStates[i]->GetN(), |
---|
| 207 | theFinalStates[i]->GetZ(), |
---|
| 208 | theTrack.GetMaterial()->GetTemperature())); |
---|
| 209 | sum += xsec[i]; |
---|
| 210 | } |
---|
| 211 | else |
---|
| 212 | { |
---|
| 213 | xsec[i]=0; |
---|
| 214 | } |
---|
| 215 | } |
---|
| 216 | if(sum == 0) |
---|
| 217 | { |
---|
| 218 | // G4cout << "G4NeutronHPChannel::ApplyYourself theFinalState->Initialize+"<<G4endl; |
---|
| 219 | // G4cout << "G4NeutronHPChannel::ApplyYourself theFinalState->Initialize-"<<G4endl; |
---|
| 220 | it = static_cast<G4int>(niso*G4UniformRand()); |
---|
| 221 | } |
---|
| 222 | else |
---|
| 223 | { |
---|
| 224 | // G4cout << "Are we still here? "<<sum<<G4endl; |
---|
| 225 | // G4cout << "TESTHP 23 NISO="<<niso<<G4endl; |
---|
| 226 | G4double random = G4UniformRand(); |
---|
| 227 | G4double running=0; |
---|
| 228 | // G4cout << "G4NeutronHPChannel::ApplyYourself Done the sum"<<niso<<G4endl; |
---|
| 229 | // G4cout << "TESTHP 24 NISO="<<niso<<G4endl; |
---|
| 230 | for (G4int ix=0; ix<niso; ix++) |
---|
| 231 | { |
---|
| 232 | running += xsec[ix]; |
---|
| 233 | //if(random<=running/sum) |
---|
| 234 | if( sum == 0 || random <= running/sum ) |
---|
| 235 | { |
---|
| 236 | it = ix; |
---|
| 237 | break; |
---|
| 238 | } |
---|
| 239 | } |
---|
| 240 | if(it==niso) it--; |
---|
| 241 | } |
---|
| 242 | delete [] xsec; |
---|
| 243 | G4HadFinalState * theFinalState=0; |
---|
| 244 | while(theFinalState==0) |
---|
| 245 | { |
---|
| 246 | // G4cout << "TESTHP 24 it="<<it<<G4endl; |
---|
| 247 | theFinalState = theFinalStates[it]->ApplyYourself(theTrack); |
---|
| 248 | } |
---|
| 249 | // G4cout <<"THE IMPORTANT RETURN"<<G4endl; |
---|
| 250 | return theFinalState; |
---|
| 251 | } |
---|
| 252 | |
---|