1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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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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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 | // |
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27 | // $Id: G4TheoFSGenerator.cc,v 1.9 2007/11/13 16:01:36 gunter Exp $ |
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28 | // GEANT4 tag $Name: $ |
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29 | // |
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30 | // G4TheoFSGenerator |
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31 | |
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32 | #include "G4DynamicParticle.hh" |
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33 | #include "G4TheoFSGenerator.hh" |
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34 | #include "G4ReactionProductVector.hh" |
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35 | #include "G4ReactionProduct.hh" |
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36 | |
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37 | G4TheoFSGenerator::G4TheoFSGenerator(const G4String& name) |
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38 | : G4HadronicInteraction(name) |
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39 | , theQuasielastic(0), theProjectileDiffraction(0) |
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40 | { |
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41 | theParticleChange = new G4HadFinalState; |
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42 | } |
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43 | |
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44 | G4TheoFSGenerator::G4TheoFSGenerator(const G4TheoFSGenerator &) |
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45 | : G4HadronicInteraction("TheoFSGenerator") |
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46 | , theQuasielastic(0), theProjectileDiffraction(0) |
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47 | { |
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48 | } |
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49 | |
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50 | |
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51 | G4TheoFSGenerator::~G4TheoFSGenerator() |
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52 | { |
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53 | delete theParticleChange; |
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54 | } |
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55 | |
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56 | |
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57 | const G4TheoFSGenerator & G4TheoFSGenerator::operator=(const G4TheoFSGenerator &) |
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58 | { |
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59 | G4String text = "G4CrossSectionBase::operator= meant to not be accessable"; |
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60 | throw G4HadronicException(__FILE__, __LINE__, text); |
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61 | return *this; |
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62 | } |
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63 | |
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64 | |
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65 | int G4TheoFSGenerator::operator==(const G4TheoFSGenerator &) const |
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66 | { |
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67 | return 0; |
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68 | } |
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69 | |
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70 | int G4TheoFSGenerator::operator!=(const G4TheoFSGenerator &) const |
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71 | { |
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72 | return 1; |
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73 | } |
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74 | |
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75 | |
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76 | G4HadFinalState * G4TheoFSGenerator::ApplyYourself(const G4HadProjectile & thePrimary, G4Nucleus &theNucleus) |
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77 | { |
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78 | // init particle change |
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79 | theParticleChange->Clear(); |
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80 | theParticleChange->SetStatusChange(stopAndKill); |
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81 | |
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82 | // check if models have been registered, and use default, in case this is not true @@ |
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83 | |
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84 | // get result from high energy model |
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85 | G4DynamicParticle aTemp(const_cast<G4ParticleDefinition *>(thePrimary.GetDefinition()), |
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86 | thePrimary.Get4Momentum().vect()); |
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87 | const G4DynamicParticle * aPart = &aTemp; |
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88 | |
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89 | if ( theQuasielastic ) { |
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90 | |
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91 | if ( theQuasielastic->GetFraction(theNucleus, *aPart) > G4UniformRand() ) |
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92 | { |
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93 | G4KineticTrackVector *result= theQuasielastic->Scatter(theNucleus, *aPart); |
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94 | if (result) |
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95 | { |
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96 | for(unsigned int i=0; i<result->size(); i++) |
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97 | { |
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98 | G4DynamicParticle * aNew = |
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99 | new G4DynamicParticle(result->operator[](i)->GetDefinition(), |
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100 | result->operator[](i)->Get4Momentum().e(), |
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101 | result->operator[](i)->Get4Momentum().vect()); |
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102 | theParticleChange->AddSecondary(aNew); |
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103 | delete result->operator[](i); |
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104 | } |
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105 | delete result; |
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106 | |
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107 | } else |
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108 | { |
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109 | theParticleChange->SetStatusChange(isAlive); |
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110 | theParticleChange->SetEnergyChange(thePrimary.GetKineticEnergy()); |
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111 | theParticleChange->SetMomentumChange(thePrimary.Get4Momentum().vect().unit()); |
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112 | |
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113 | } |
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114 | return theParticleChange; |
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115 | } |
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116 | } |
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117 | if ( theProjectileDiffraction) { |
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118 | |
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119 | if ( theProjectileDiffraction->GetFraction(theNucleus, *aPart) > G4UniformRand() ) |
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120 | // strictly, this returns fraction on inelastic, so quasielastic should |
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121 | // already be substracted, ie. quasielastic should always be used |
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122 | // before diffractive |
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123 | { |
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124 | G4KineticTrackVector *result= theProjectileDiffraction->Scatter(theNucleus, *aPart); |
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125 | if (result) |
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126 | { |
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127 | for(unsigned int i=0; i<result->size(); i++) |
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128 | { |
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129 | G4DynamicParticle * aNew = |
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130 | new G4DynamicParticle(result->operator[](i)->GetDefinition(), |
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131 | result->operator[](i)->Get4Momentum().e(), |
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132 | result->operator[](i)->Get4Momentum().vect()); |
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133 | theParticleChange->AddSecondary(aNew); |
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134 | delete result->operator[](i); |
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135 | } |
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136 | delete result; |
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137 | |
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138 | } else |
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139 | { |
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140 | theParticleChange->SetStatusChange(isAlive); |
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141 | theParticleChange->SetEnergyChange(thePrimary.GetKineticEnergy()); |
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142 | theParticleChange->SetMomentumChange(thePrimary.Get4Momentum().vect().unit()); |
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143 | |
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144 | } |
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145 | return theParticleChange; |
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146 | } |
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147 | } |
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148 | |
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149 | G4KineticTrackVector * theInitialResult = |
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150 | theHighEnergyGenerator->Scatter(theNucleus, *aPart); |
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151 | |
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152 | |
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153 | G4ReactionProductVector * theTransportResult = NULL; |
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154 | G4int hitCount = 0; |
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155 | const std::vector<G4Nucleon *> & they = theHighEnergyGenerator->GetWoundedNucleus()->GetNucleons(); |
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156 | for(size_t them=0; them<they.size(); them++) |
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157 | { |
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158 | if(they[them]->AreYouHit()) hitCount ++; |
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159 | } |
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160 | if(hitCount != theHighEnergyGenerator->GetWoundedNucleus()->GetMassNumber() ) |
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161 | { |
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162 | theTransportResult = |
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163 | theTransport->Propagate(theInitialResult, theHighEnergyGenerator->GetWoundedNucleus()); |
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164 | if ( !theTransportResult ) { |
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165 | G4cout << "G4TheoFSGenerator: null ptr from transport propagate " << G4endl; |
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166 | throw G4HadronicException(__FILE__, __LINE__, "Null ptr from transport propagate"); |
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167 | } |
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168 | } |
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169 | else |
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170 | { |
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171 | theTransportResult = theDecay.Propagate(theInitialResult, theHighEnergyGenerator->GetWoundedNucleus()); |
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172 | if ( !theTransportResult ) { |
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173 | G4cout << "G4TheoFSGenerator: null ptr from decay propagate " << G4endl; |
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174 | throw G4HadronicException(__FILE__, __LINE__, "Null ptr from decay propagate"); |
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175 | } |
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176 | } |
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177 | |
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178 | // Fill particle change |
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179 | unsigned int i; |
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180 | for(i=0; i<theTransportResult->size(); i++) |
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181 | { |
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182 | G4DynamicParticle * aNew = |
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183 | new G4DynamicParticle(theTransportResult->operator[](i)->GetDefinition(), |
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184 | theTransportResult->operator[](i)->GetTotalEnergy(), |
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185 | theTransportResult->operator[](i)->GetMomentum()); |
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186 | // @@@ - overkill? G4double newTime = theParticleChange->GetGlobalTime(theTransportResult->operator[](i)->GetFormationTime()); |
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187 | theParticleChange->AddSecondary(aNew); |
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188 | delete theTransportResult->operator[](i); |
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189 | } |
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190 | |
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191 | // some garbage collection |
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192 | delete theTransportResult; |
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193 | |
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194 | // Done |
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195 | return theParticleChange; |
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196 | } |
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197 | |
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