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 | // |
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27 | // This software was developed by Lawrence Livermore National Laboratory. |
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28 | // |
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29 | // Redistribution and use in source and binary forms, with or without |
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30 | // modification, are permitted provided that the following conditions are met: |
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31 | // |
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32 | // 1. Redistributions of source code must retain the above copyright notice, |
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33 | // this list of conditions and the following disclaimer. |
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34 | // 2. Redistributions in binary form must reproduce the above copyright notice, |
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35 | // this list of conditions and the following disclaimer in the documentation |
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36 | // and/or other materials provided with the distribution. |
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37 | // 3. The name of the author may not be used to endorse or promote products |
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38 | // derived from this software without specific prior written permission. |
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39 | // |
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40 | // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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41 | // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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42 | // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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43 | // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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45 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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46 | // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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47 | // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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48 | // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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49 | // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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50 | // |
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51 | // Copyright (c) 2006 The Regents of the University of California. |
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52 | // All rights reserved. |
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53 | // UCRL-CODE-224807 |
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54 | // |
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55 | // |
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56 | // $Id: G4FissionLibrary.cc,v 1.4 2007/06/01 14:02:08 gcosmo Exp $ |
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57 | // |
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58 | // neutron_hp -- source file |
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59 | // J.M. Verbeke, Jan-2007 |
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60 | // A low energy neutron-induced fission model. |
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61 | // |
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62 | |
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63 | #include "G4FissionLibrary.hh" |
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64 | |
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65 | G4FissionLibrary::G4FissionLibrary() |
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66 | : G4NeutronHPFinalState() |
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67 | { |
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68 | hasXsec = false; |
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69 | } |
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70 | |
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71 | G4FissionLibrary::~G4FissionLibrary() |
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72 | { |
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73 | } |
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74 | |
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75 | G4NeutronHPFinalState * G4FissionLibrary::New() |
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76 | { |
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77 | G4FissionLibrary * theNew = new G4FissionLibrary; |
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78 | return theNew; |
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79 | } |
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80 | |
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81 | void G4FissionLibrary::Init (G4double A, G4double Z, G4String & dirName, G4String &) |
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82 | { |
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83 | G4String tString = "/FS/"; |
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84 | G4bool dbool; |
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85 | theIsotope = static_cast<G4int>(1000*Z+A); |
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86 | G4NeutronHPDataUsed aFile = theNames.GetName(static_cast<G4int>(A), static_cast<G4int>(Z), dirName, tString, dbool); |
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87 | G4String filename = aFile.GetName(); |
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88 | |
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89 | if(!dbool) |
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90 | { |
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91 | hasAnyData = false; |
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92 | hasFSData = false; |
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93 | hasXsec = false; |
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94 | return; |
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95 | } |
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96 | std::ifstream theData(filename, std::ios::in); |
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97 | |
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98 | // here it comes |
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99 | G4int infoType, dataType; |
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100 | hasFSData = false; |
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101 | while (theData >> infoType) |
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102 | { |
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103 | hasFSData = true; |
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104 | theData >> dataType; |
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105 | switch(infoType) |
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106 | { |
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107 | case 1: |
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108 | if(dataType==4) theNeutronAngularDis.Init(theData); |
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109 | if(dataType==5) thePromptNeutronEnDis.Init(theData); |
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110 | if(dataType==12) theFinalStatePhotons.InitMean(theData); |
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111 | if(dataType==14) theFinalStatePhotons.InitAngular(theData); |
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112 | if(dataType==15) theFinalStatePhotons.InitEnergies(theData); |
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113 | break; |
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114 | case 2: |
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115 | if(dataType==1) theFinalStateNeutrons.InitMean(theData); |
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116 | break; |
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117 | case 3: |
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118 | if(dataType==1) theFinalStateNeutrons.InitDelayed(theData); |
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119 | if(dataType==5) theDelayedNeutronEnDis.Init(theData); |
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120 | break; |
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121 | case 4: |
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122 | if(dataType==1) theFinalStateNeutrons.InitPrompt(theData); |
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123 | break; |
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124 | case 5: |
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125 | if(dataType==1) theEnergyRelease.Init(theData); |
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126 | break; |
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127 | default: |
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128 | G4cout << "G4FissionLibrary::Init: unknown data type"<<dataType<<G4endl; |
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129 | throw G4HadronicException(__FILE__, __LINE__, "G4FissionLibrary::Init: unknown data type"); |
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130 | break; |
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131 | } |
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132 | } |
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133 | targetMass = theFinalStateNeutrons.GetTargetMass(); |
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134 | theData.close(); |
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135 | } |
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136 | |
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137 | G4HadFinalState * G4FissionLibrary::ApplyYourself(const G4HadProjectile & theTrack) |
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138 | { |
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139 | theResult.Clear(); |
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140 | |
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141 | // prepare neutron |
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142 | G4double eKinetic = theTrack.GetKineticEnergy(); |
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143 | const G4HadProjectile *incidentParticle = &theTrack; |
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144 | G4ReactionProduct theNeutron( const_cast<G4ParticleDefinition *>(incidentParticle->GetDefinition()) ); |
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145 | theNeutron.SetMomentum( incidentParticle->Get4Momentum().vect() ); |
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146 | theNeutron.SetKineticEnergy( eKinetic ); |
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147 | |
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148 | // prepare target |
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149 | G4Nucleus aNucleus; |
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150 | G4ReactionProduct theTarget; |
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151 | G4ThreeVector neuVelo = (1./incidentParticle->GetDefinition()->GetPDGMass())*theNeutron.GetMomentum(); |
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152 | theTarget = aNucleus.GetBiasedThermalNucleus( targetMass, neuVelo, theTrack.GetMaterial()->GetTemperature()); |
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153 | |
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154 | // set neutron and target in the FS classes |
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155 | theNeutronAngularDis.SetNeutron(theNeutron); |
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156 | theNeutronAngularDis.SetTarget(theTarget); |
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157 | |
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158 | // boost to target rest system |
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159 | theNeutron.Lorentz(theNeutron, -1*theTarget); |
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160 | |
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161 | eKinetic = theNeutron.GetKineticEnergy(); |
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162 | |
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163 | // dice neutron and gamma multiplicities, energies and momenta in Lab. @@ |
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164 | // no energy conservation on an event-to-event basis. we rely on the data to be ok. @@ |
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165 | // also for mean, we rely on the consistency of the data. @@ |
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166 | |
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167 | G4int nPrompt=0, gPrompt=0; |
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168 | SampleMult(theTrack, &nPrompt, &gPrompt, eKinetic); |
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169 | |
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170 | // Build neutrons and add them to dynamic particle vector |
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171 | G4double momentum; |
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172 | for(G4int i=0; i<nPrompt; i++) |
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173 | { |
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174 | G4DynamicParticle * it = new G4DynamicParticle; |
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175 | it->SetDefinition(G4Neutron::Neutron()); |
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176 | it->SetKineticEnergy(getneng_(&i)*MeV); |
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177 | momentum = it->GetTotalMomentum(); |
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178 | G4ThreeVector temp(momentum*getndircosu_(&i), |
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179 | momentum*getndircosv_(&i), |
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180 | momentum*getndircosw_(&i)); |
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181 | it->SetMomentum( temp ); |
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182 | // it->SetGlobalTime(getnage_(&i)*second); |
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183 | theResult.AddSecondary(it); |
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184 | // G4cout <<"G4FissionLibrary::ApplyYourself: energy of prompt neutron " << i << " = " << it->GetKineticEnergy()<<G4endl; |
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185 | } |
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186 | |
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187 | // Build gammas, lorentz transform them, and add them to dynamic particle vector |
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188 | for(G4int i=0; i<gPrompt; i++) |
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189 | { |
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190 | G4ReactionProduct * thePhoton = new G4ReactionProduct; |
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191 | thePhoton->SetDefinition(G4Gamma::Gamma()); |
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192 | thePhoton->SetKineticEnergy(getpeng_(&i)*MeV); |
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193 | momentum = thePhoton->GetTotalMomentum(); |
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194 | G4ThreeVector temp(momentum*getpdircosu_(&i), |
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195 | momentum*getpdircosv_(&i), |
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196 | momentum*getpdircosw_(&i)); |
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197 | thePhoton->SetMomentum( temp ); |
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198 | thePhoton->Lorentz(*thePhoton, -1.*theTarget); |
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199 | |
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200 | G4DynamicParticle * it = new G4DynamicParticle; |
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201 | it->SetDefinition(thePhoton->GetDefinition()); |
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202 | it->SetMomentum(thePhoton->GetMomentum()); |
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203 | // it->SetGlobalTime(getpage_(&i)*second); |
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204 | // G4cout <<"G4FissionLibrary::ApplyYourself: energy of prompt photon " << i << " = " << it->GetKineticEnergy()<<G4endl; |
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205 | theResult.AddSecondary(it); |
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206 | delete thePhoton; |
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207 | } |
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208 | // G4cout <<"G4FissionLibrary::ApplyYourself: Number of secondaries = "<<theResult.GetNumberOfSecondaries()<< G4endl; |
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209 | // G4cout <<"G4FissionLibrary::ApplyYourself: Number of induced prompt neutron = "<<nPrompt<<G4endl; |
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210 | // G4cout <<"G4FissionLibrary::ApplyYourself: Number of induced prompt photons = "<<gPrompt<<G4endl; |
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211 | |
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212 | // finally deal with local energy depositions. |
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213 | G4double eDepByFragments = theEnergyRelease.GetFragmentKinetic(); |
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214 | theResult.SetLocalEnergyDeposit(eDepByFragments); |
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215 | // G4cout << "G4FissionLibrary::local energy deposit" << eDepByFragments<<G4endl; |
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216 | // clean up the primary neutron |
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217 | theResult.SetStatusChange(stopAndKill); |
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218 | return &theResult; |
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219 | } |
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220 | |
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221 | void G4FissionLibrary::SampleMult(const G4HadProjectile & theTrack, G4int* nPrompt, |
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222 | G4int* gPrompt, G4double eKinetic) |
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223 | { |
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224 | G4double promptNeutronMulti = 0; |
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225 | promptNeutronMulti = theFinalStateNeutrons.GetPrompt(eKinetic); // prompt nubar from Geant |
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226 | G4double delayedNeutronMulti = 0; |
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227 | delayedNeutronMulti = theFinalStateNeutrons.GetDelayed(eKinetic); // delayed nubar from Geant |
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228 | |
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229 | G4double time = theTrack.GetGlobalTime()/second; |
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230 | if(delayedNeutronMulti==0&&promptNeutronMulti==0) { |
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231 | // no data for prompt and delayed neutrons in Geant |
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232 | // but there is perhaps data for the total neutron multiplicity, in which case |
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233 | // we use it for prompt neutron emission |
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234 | G4double totalNeutronMulti = theFinalStateNeutrons.GetMean(eKinetic); |
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235 | genfissevt_(&theIsotope, &time, &totalNeutronMulti, &eKinetic); |
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236 | } else { |
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237 | // prompt nubar != 0 || delayed nubar != 0 |
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238 | genfissevt_(&theIsotope, &time, &promptNeutronMulti, &eKinetic); |
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239 | } |
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240 | *nPrompt = getnnu_(); |
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241 | if (*nPrompt == -1) *nPrompt = 0; // the fission library libFission.a has no data for neutrons |
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242 | *gPrompt = getpnu_(); |
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243 | if (*gPrompt == -1) *gPrompt = 0; // the fission library libFission.a has no data for gammas |
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244 | } |
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245 | |
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