1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4AdjointPrimaryGeneratorAction.cc,v 1.2 2009/11/18 18:02:06 gcosmo Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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28 | // |
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29 | ///////////////////////////////////////////////////////////////////////////// |
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30 | // Class Name: G4AdjointCrossSurfChecker |
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31 | // Author: L. Desorgher |
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32 | // Organisation: SpaceIT GmbH |
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33 | // Contract: ESA contract 21435/08/NL/AT |
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34 | // Customer: ESA/ESTEC |
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35 | ///////////////////////////////////////////////////////////////////////////// |
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36 | |
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37 | #include "G4AdjointPrimaryGeneratorAction.hh" |
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38 | #include "G4Event.hh" |
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39 | #include "G4ParticleTable.hh" |
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40 | #include "G4ParticleDefinition.hh" |
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41 | #include "G4ParticleTable.hh" |
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42 | #include "G4AdjointSimManager.hh" |
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43 | #include "G4AdjointPrimaryGenerator.hh" |
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44 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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45 | // |
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46 | G4AdjointPrimaryGeneratorAction::G4AdjointPrimaryGeneratorAction() |
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47 | { |
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48 | theAdjointPrimaryGenerator= new G4AdjointPrimaryGenerator(); |
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49 | |
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50 | PrimariesConsideredInAdjointSim[G4String("e-")]=false; |
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51 | PrimariesConsideredInAdjointSim[G4String("gamma")]=false; |
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52 | PrimariesConsideredInAdjointSim[G4String("proton")]=false; |
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53 | PrimariesConsideredInAdjointSim[G4String("ion")]=false; |
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54 | |
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55 | ListOfPrimaryFwdParticles.clear(); |
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56 | ListOfPrimaryAdjParticles.clear(); |
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57 | |
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58 | last_generated_part_was_adjoint=false; |
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59 | index_particle=100000; |
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60 | |
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61 | ion_name="not_defined"; |
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62 | fwd_ion = 0; |
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63 | adj_ion = 0; |
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64 | } |
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65 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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66 | // |
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67 | G4AdjointPrimaryGeneratorAction::~G4AdjointPrimaryGeneratorAction() |
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68 | { |
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69 | delete theAdjointPrimaryGenerator; |
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70 | } |
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71 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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72 | // |
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73 | void G4AdjointPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
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74 | { |
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75 | if ( !last_generated_part_was_adjoint ) { |
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76 | |
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77 | index_particle++; |
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78 | if (index_particle >= ListOfPrimaryAdjParticles.size()) index_particle =0; |
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79 | |
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80 | |
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81 | G4double E1=Emin; |
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82 | G4double E2=Emax; |
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83 | if (!ListOfPrimaryAdjParticles[index_particle]) UpdateListOfPrimaryParticles();//ion has not been created yet |
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84 | |
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85 | if (ListOfPrimaryAdjParticles[index_particle]->GetParticleName() == "adj_proton") { |
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86 | E1=EminIon; |
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87 | E2=EmaxIon; |
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88 | } |
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89 | if (ListOfPrimaryAdjParticles[index_particle]->GetParticleType() == "adjoint_nucleus") { |
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90 | G4int A= ListOfPrimaryAdjParticles[index_particle]->GetAtomicMass(); |
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91 | E1=EminIon*A; |
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92 | E2=EmaxIon*A; |
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93 | } |
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94 | theAdjointPrimaryGenerator->GenerateAdjointPrimaryVertex(anEvent, |
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95 | ListOfPrimaryAdjParticles[index_particle], |
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96 | E1,E2); |
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97 | G4PrimaryVertex* aPrimVertex = anEvent->GetPrimaryVertex(); |
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98 | |
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99 | |
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100 | p=aPrimVertex->GetPrimary()->GetMomentum(); |
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101 | pos=aPrimVertex->GetPosition(); |
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102 | G4double pmag=p.mag(); |
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103 | |
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104 | G4double m0=ListOfPrimaryAdjParticles[index_particle]->GetPDGMass(); |
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105 | G4double ekin=std::sqrt( m0*m0 + pmag*pmag) -m0; |
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106 | |
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107 | |
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108 | //The factor pi is to normalise the weight to the directional flux |
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109 | G4double adjoint_source_area = G4AdjointSimManager::GetInstance()->GetAdjointSourceArea(); |
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110 | G4double adjoint_weight = ComputeEnergyDistWeight(ekin,E1,E2)*adjoint_source_area*pi; |
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111 | |
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112 | aPrimVertex->SetWeight(adjoint_weight); |
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113 | |
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114 | last_generated_part_was_adjoint =true; |
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115 | G4AdjointSimManager::GetInstance()->SetAdjointTrackingMode(true); |
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116 | G4AdjointSimManager::GetInstance()->RegisterAdjointPrimaryWeight(adjoint_weight); |
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117 | } |
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118 | else { |
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119 | //fwd particle equivalent to the last generated adjoint particle ios generated |
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120 | G4PrimaryVertex* aPrimVertex = new G4PrimaryVertex(); |
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121 | aPrimVertex->SetPosition(pos.x(),pos.y(),pos.z()); |
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122 | aPrimVertex->SetT0(0.); |
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123 | G4PrimaryParticle* aPrimParticle = new G4PrimaryParticle(ListOfPrimaryFwdParticles[index_particle], |
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124 | -p.x(),-p.y(),-p.z()); |
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125 | |
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126 | aPrimVertex->SetPrimary(aPrimParticle); |
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127 | anEvent->AddPrimaryVertex(aPrimVertex); |
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128 | last_generated_part_was_adjoint =false; |
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129 | G4AdjointSimManager::GetInstance()->SetAdjointTrackingMode(false); |
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130 | } |
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131 | } |
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132 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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133 | // |
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134 | void G4AdjointPrimaryGeneratorAction::SetEmin(G4double val) |
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135 | { |
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136 | Emin=val; |
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137 | EminIon=val; |
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138 | } |
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139 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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140 | // |
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141 | void G4AdjointPrimaryGeneratorAction::SetEmax(G4double val) |
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142 | { |
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143 | Emax=val; |
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144 | EmaxIon=val; |
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145 | } |
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146 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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147 | // |
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148 | void G4AdjointPrimaryGeneratorAction::SetEminIon(G4double val) |
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149 | { |
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150 | EminIon=val; |
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151 | } |
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152 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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153 | // |
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154 | void G4AdjointPrimaryGeneratorAction::SetEmaxIon(G4double val) |
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155 | { |
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156 | EmaxIon=val; |
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157 | } |
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158 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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159 | // |
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160 | G4double G4AdjointPrimaryGeneratorAction::ComputeEnergyDistWeight(G4double E ,G4double E1, G4double E2) |
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161 | { |
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162 | // We generate N numbers of primaries with a 1/E energy law distribution. |
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163 | // We have therefore an energy distribution function |
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164 | // f(E)=C/E (1) |
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165 | // with C a constant that is such that |
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166 | // N=Integral(f(E),E1,E2)=C.std::log(E2/E1) (2) |
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167 | // Therefore from (2) we get |
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168 | // C=N/ std::log(E2/E1) (3) |
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169 | // and |
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170 | // f(E)=N/ std::log(E2/E1)/E (4) |
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171 | //For the adjoint simulation we need a energy distribution f'(E)=1.. |
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172 | //To get that we need therefore to apply a weight to the primary |
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173 | // W=1/f(E)=E*std::log(E2/E1)/N |
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174 | // |
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175 | return std::log(E2/E1)*E/G4AdjointSimManager::GetInstance()->GetNbEvtOfLastRun(); |
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176 | |
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177 | } |
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178 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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179 | // |
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180 | void G4AdjointPrimaryGeneratorAction::SetSphericalAdjointPrimarySource(G4double radius, G4ThreeVector center_pos) |
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181 | { |
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182 | radius_spherical_source = radius; |
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183 | center_spherical_source = center_pos; |
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184 | type_of_adjoint_source ="Spherical"; |
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185 | theAdjointPrimaryGenerator->SetSphericalAdjointPrimarySource(radius,center_pos); |
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186 | } |
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187 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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188 | // |
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189 | void G4AdjointPrimaryGeneratorAction::SetAdjointPrimarySourceOnAnExtSurfaceOfAVolume(const G4String& volume_name) |
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190 | { |
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191 | type_of_adjoint_source ="ExternalSurfaceOfAVolume"; |
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192 | theAdjointPrimaryGenerator->SetAdjointPrimarySourceOnAnExtSurfaceOfAVolume(volume_name); |
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193 | } |
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194 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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195 | // |
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196 | void G4AdjointPrimaryGeneratorAction::ConsiderParticleAsPrimary(const G4String& particle_name) |
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197 | { |
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198 | if (PrimariesConsideredInAdjointSim.find(particle_name) != PrimariesConsideredInAdjointSim.end()){ |
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199 | PrimariesConsideredInAdjointSim[particle_name]=true; |
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200 | } |
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201 | UpdateListOfPrimaryParticles(); |
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202 | } |
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203 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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204 | // |
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205 | void G4AdjointPrimaryGeneratorAction::NeglectParticleAsPrimary(const G4String& particle_name) |
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206 | { |
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207 | if (PrimariesConsideredInAdjointSim.find(particle_name) != PrimariesConsideredInAdjointSim.end()){ |
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208 | PrimariesConsideredInAdjointSim[particle_name]= false; |
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209 | } |
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210 | UpdateListOfPrimaryParticles(); |
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211 | } |
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212 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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213 | // |
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214 | void G4AdjointPrimaryGeneratorAction::UpdateListOfPrimaryParticles() |
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215 | { |
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216 | G4ParticleTable* theParticleTable = G4ParticleTable::GetParticleTable(); |
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217 | ListOfPrimaryFwdParticles.clear(); |
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218 | ListOfPrimaryAdjParticles.clear(); |
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219 | std::map<G4String, G4bool>::iterator iter; |
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220 | for( iter = PrimariesConsideredInAdjointSim.begin(); iter != PrimariesConsideredInAdjointSim.end(); ++iter ) { |
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221 | if(iter->second) { |
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222 | G4String fwd_particle_name = iter->first; |
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223 | if ( fwd_particle_name != "ion") { |
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224 | G4String adj_particle_name = G4String("adj_") + fwd_particle_name; |
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225 | ListOfPrimaryFwdParticles.push_back(theParticleTable->FindParticle(fwd_particle_name)); |
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226 | ListOfPrimaryAdjParticles.push_back(theParticleTable->FindParticle(adj_particle_name)); |
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227 | } |
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228 | else { |
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229 | if (fwd_ion ){ |
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230 | ion_name=fwd_ion->GetParticleName(); |
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231 | G4String adj_ion_name=G4String("adj_") +ion_name; |
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232 | ListOfPrimaryFwdParticles.push_back(fwd_ion); |
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233 | ListOfPrimaryAdjParticles.push_back(adj_ion); |
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234 | } |
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235 | else { |
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236 | ListOfPrimaryFwdParticles.push_back(0); |
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237 | ListOfPrimaryAdjParticles.push_back(0); |
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238 | |
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239 | } |
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240 | } |
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241 | } |
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242 | } |
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243 | } |
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244 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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245 | // |
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246 | void G4AdjointPrimaryGeneratorAction::SetPrimaryIon(G4ParticleDefinition* adjointIon, G4ParticleDefinition* fwdIon) |
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247 | { |
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248 | fwd_ion = fwdIon; |
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249 | adj_ion = adjointIon; |
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250 | UpdateListOfPrimaryParticles(); |
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251 | } |
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252 | |
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