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: G4VPreCompoundFragment.cc,v 1.12 2009/02/10 16:01:37 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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28 | // |
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29 | // J. M. Quesada (August 2008). |
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30 | // Based on previous work by V. Lara |
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31 | // |
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32 | |
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33 | #include "G4VPreCompoundFragment.hh" |
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34 | #include "G4PreCompoundParameters.hh" |
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35 | |
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36 | G4VPreCompoundFragment:: |
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37 | G4VPreCompoundFragment(const G4VPreCompoundFragment & right) |
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38 | { |
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39 | theA = right.theA; |
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40 | theZ = right.theZ; |
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41 | theRestNucleusA = right.theRestNucleusA; |
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42 | theRestNucleusZ = right.theRestNucleusZ; |
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43 | theCoulombBarrier = right.theCoulombBarrier; |
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44 | theCoulombBarrierPtr = right.theCoulombBarrierPtr; |
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45 | theMaximalKineticEnergy = right.theMaximalKineticEnergy; |
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46 | theEmissionProbability = right.theEmissionProbability; |
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47 | theMomentum = right.theMomentum; |
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48 | theFragmentName = right.theFragmentName; |
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49 | theStage = right.theStage; |
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50 | } |
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51 | |
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52 | G4VPreCompoundFragment:: |
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53 | G4VPreCompoundFragment(const G4double anA, |
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54 | const G4double aZ, |
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55 | G4VCoulombBarrier* aCoulombBarrier, |
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56 | const G4String & aName): |
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57 | theA(anA),theZ(aZ), |
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58 | theRestNucleusA(0.0),theRestNucleusZ(0.0),theCoulombBarrier(0.0), |
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59 | theCoulombBarrierPtr(aCoulombBarrier), |
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60 | theBindingEnergy(0.0), theMaximalKineticEnergy(-1.0), |
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61 | theEmissionProbability(0.0), theMomentum(0.0,0.0,0.0,0.0), |
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62 | theFragmentName(aName),theStage(0) |
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63 | {} |
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64 | |
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65 | |
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66 | |
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67 | G4VPreCompoundFragment::~G4VPreCompoundFragment() |
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68 | { |
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69 | } |
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70 | |
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71 | |
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72 | const G4VPreCompoundFragment & G4VPreCompoundFragment:: |
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73 | operator= (const G4VPreCompoundFragment & right) |
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74 | { |
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75 | if (this != &right) { |
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76 | theA = right.theA; |
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77 | theZ = right.theZ; |
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78 | theRestNucleusA = right.theRestNucleusA; |
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79 | theRestNucleusZ = right.theRestNucleusZ; |
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80 | theCoulombBarrier = right.theCoulombBarrier; |
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81 | theCoulombBarrierPtr = right.theCoulombBarrierPtr; |
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82 | theMaximalKineticEnergy = right.theMaximalKineticEnergy; |
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83 | theEmissionProbability = right.theEmissionProbability; |
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84 | theMomentum = right.theMomentum; |
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85 | theFragmentName = right.theFragmentName; |
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86 | theStage = right.theStage; |
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87 | } |
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88 | return *this; |
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89 | } |
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90 | |
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91 | G4int G4VPreCompoundFragment::operator==(const G4VPreCompoundFragment & right) const |
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92 | { |
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93 | return (this == (G4VPreCompoundFragment *) &right); |
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94 | } |
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95 | |
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96 | G4int G4VPreCompoundFragment::operator!=(const G4VPreCompoundFragment & right) const |
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97 | { |
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98 | return (this != (G4VPreCompoundFragment *) &right); |
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99 | } |
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100 | |
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101 | |
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102 | std::ostream& |
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103 | operator << (std::ostream &out, const G4VPreCompoundFragment &theFragment) |
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104 | { |
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105 | out << &theFragment; |
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106 | return out; |
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107 | } |
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108 | |
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109 | |
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110 | std::ostream& |
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111 | operator << (std::ostream &out, const G4VPreCompoundFragment *theFragment) |
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112 | { |
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113 | std::ios::fmtflags old_floatfield = out.flags(); |
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114 | out.setf(std::ios::floatfield); |
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115 | |
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116 | out |
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117 | << "PreCompound Model Emitted Fragment: A = " |
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118 | << std::setprecision(3) << theFragment->theA |
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119 | << ", Z = " << std::setprecision(3) << theFragment->theZ; |
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120 | out.setf(std::ios::scientific,std::ios::floatfield); |
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121 | // out |
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122 | // << ", U = " << theFragment->theExcitationEnergy/MeV |
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123 | // << " MeV" << endl |
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124 | // << " P = (" |
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125 | // << theFragment->theMomentum.x()/MeV << "," |
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126 | // << theFragment->theMomentum.y()/MeV << "," |
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127 | // << theFragment->theMomentum.z()/MeV |
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128 | // << ") MeV E = " |
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129 | // << theFragment->theMomentum.t()/MeV << " MeV"; |
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130 | |
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131 | out.setf(old_floatfield,std::ios::floatfield); |
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132 | |
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133 | return out; |
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134 | } |
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135 | |
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136 | |
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137 | void G4VPreCompoundFragment:: |
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138 | Initialize(const G4Fragment & aFragment) |
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139 | { |
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140 | theRestNucleusA = aFragment.GetA() - theA; |
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141 | theRestNucleusZ = aFragment.GetZ() - theZ; |
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142 | |
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143 | if ((theRestNucleusA < theRestNucleusZ) || |
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144 | (theRestNucleusA < theA) || |
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145 | (theRestNucleusZ < theZ)) |
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146 | { |
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147 | // In order to be sure that emission probability will be 0. |
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148 | theMaximalKineticEnergy = 0.0; |
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149 | return; |
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150 | } |
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151 | |
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152 | |
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153 | // Calculate Coulomb barrier |
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154 | theCoulombBarrier = theCoulombBarrierPtr-> |
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155 | GetCoulombBarrier(static_cast<G4int>(theRestNucleusA),static_cast<G4int>(theRestNucleusZ), |
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156 | aFragment.GetExcitationEnergy()); |
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157 | |
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158 | |
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159 | // Compute Binding Energies for fragments |
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160 | // (needed to separate a fragment from the nucleus) |
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161 | |
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162 | theBindingEnergy = G4NucleiProperties::GetMassExcess(static_cast<G4int>(theA),static_cast<G4int>(theZ)) + |
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163 | G4NucleiProperties::GetMassExcess(static_cast<G4int>(theRestNucleusA),static_cast<G4int>(theRestNucleusZ)) - |
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164 | G4NucleiProperties::GetMassExcess(static_cast<G4int>(aFragment.GetA()),static_cast<G4int>(aFragment.GetZ())); |
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165 | |
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166 | // Compute Maximal Kinetic Energy which can be carried by fragments after separation |
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167 | // This is the true (assimptotic) maximal kinetic energy |
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168 | G4double m = aFragment.GetMomentum().m(); |
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169 | G4double rm = GetRestNuclearMass(); |
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170 | G4double em = GetNuclearMass(); |
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171 | theMaximalKineticEnergy = ((m - rm)*(m + rm) + em*em)/(2.0*m) - em; |
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172 | |
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173 | |
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174 | return; |
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175 | } |
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176 | |
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177 | |
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178 | |
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179 | |
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