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2 | // ******************************************************************** |
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24 | // ******************************************************************** |
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25 | // |
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26 | // neutron_hp -- source file |
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27 | // J.P. Wellisch, Nov-1996 |
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28 | // A prototype of the low energy neutron transport model. |
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29 | // |
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30 | // 070523 bug fix for G4FPE_DEBUG on by A. Howard ( and T. Koi) |
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31 | // 070606 bug fix and migrate to enable to Partial cases by T. Koi |
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32 | // 080603 bug fix for Hadron Hyper News #932 by T. Koi |
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33 | // 080612 bug fix contribution from Benoit Pirard and Laurent Desorgher (Univ. Bern) #4,6 |
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34 | // 080717 bug fix of calculation of residual momentum by T. Koi |
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35 | // 080801 protect negative avalable energy by T. Koi |
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36 | // introduce theNDLDataA,Z which has A and Z of NDL data by T. Koi |
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37 | // 081024 G4NucleiPropertiesTable:: to G4NucleiProperties:: |
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38 | // 090514 Fix bug in IC electron emission case |
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39 | // Contribution from Chao Zhang (Chao.Zhang@usd.edu) and Dongming Mei(Dongming.Mei@usd.edu) |
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40 | // |
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41 | #include "G4NeutronHPInelasticCompFS.hh" |
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42 | #include "G4Nucleus.hh" |
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43 | #include "G4NucleiProperties.hh" |
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44 | #include "G4He3.hh" |
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45 | #include "G4Alpha.hh" |
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46 | #include "G4Electron.hh" |
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47 | #include "G4NeutronHPDataUsed.hh" |
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48 | #include "G4ParticleTable.hh" |
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49 | |
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50 | void G4NeutronHPInelasticCompFS::InitGammas(G4double AR, G4double ZR) |
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51 | { |
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52 | // char the[100] = {""}; |
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53 | // std::ostrstream ost(the, 100, std::ios::out); |
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54 | // ost <<gammaPath<<"z"<<ZR<<".a"<<AR; |
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55 | // G4String * aName = new G4String(the); |
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56 | // std::ifstream from(*aName, std::ios::in); |
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57 | |
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58 | std::ostringstream ost; |
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59 | ost <<gammaPath<<"z"<<ZR<<".a"<<AR; |
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60 | G4String aName = ost.str(); |
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61 | std::ifstream from(aName, std::ios::in); |
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62 | |
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63 | if(!from) return; // no data found for this isotope |
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64 | // std::ifstream theGammaData(*aName, std::ios::in); |
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65 | std::ifstream theGammaData(aName, std::ios::in); |
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66 | |
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67 | theGammas.Init(theGammaData); |
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68 | // delete aName; |
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69 | } |
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70 | |
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71 | void G4NeutronHPInelasticCompFS::Init (G4double A, G4double Z, G4String & dirName, G4String & aFSType) |
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72 | { |
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73 | |
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74 | gammaPath = "/Inelastic/Gammas/"; |
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75 | if(!getenv("G4NEUTRONHPDATA")) |
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76 | throw G4HadronicException(__FILE__, __LINE__, "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files."); |
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77 | G4String tBase = getenv("G4NEUTRONHPDATA"); |
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78 | gammaPath = tBase+gammaPath; |
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79 | G4String tString = dirName; |
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80 | G4bool dbool; |
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81 | G4NeutronHPDataUsed aFile = theNames.GetName(static_cast<G4int>(A), static_cast<G4int>(Z), tString, aFSType, dbool); |
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82 | G4String filename = aFile.GetName(); |
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83 | theBaseA = aFile.GetA(); |
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84 | theBaseZ = aFile.GetZ(); |
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85 | theNDLDataA = (int)aFile.GetA(); |
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86 | theNDLDataZ = aFile.GetZ(); |
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87 | if(!dbool || ( Z<2.5 && ( std::abs(theBaseZ - Z)>0.0001 || std::abs(theBaseA - A)>0.0001))) |
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88 | { |
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89 | if(getenv("NeutronHPNamesLogging")) G4cout << "Skipped = "<< filename <<" "<<A<<" "<<Z<<G4endl; |
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90 | hasAnyData = false; |
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91 | hasFSData = false; |
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92 | hasXsec = false; |
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93 | return; |
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94 | } |
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95 | theBaseA = A; |
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96 | theBaseZ = G4int(Z+.5); |
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97 | std::ifstream theData(filename, std::ios::in); |
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98 | if(!theData) |
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99 | { |
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100 | hasAnyData = false; |
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101 | hasFSData = false; |
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102 | hasXsec = false; |
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103 | theData.close(); |
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104 | return; |
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105 | } |
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106 | // here we go |
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107 | G4int infoType, dataType, dummy; |
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108 | G4int sfType, it; |
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109 | hasFSData = false; |
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110 | while (theData >> infoType) |
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111 | { |
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112 | hasFSData = true; |
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113 | theData >> dataType; |
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114 | theData >> sfType >> dummy; |
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115 | it = 50; |
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116 | if(sfType>=600||(sfType<100&&sfType>=50)) it = sfType%50; |
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117 | if(dataType==3) |
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118 | { |
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119 | theData >> dummy >> dummy; |
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120 | theXsection[it] = new G4NeutronHPVector; |
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121 | G4int total; |
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122 | theData >> total; |
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123 | theXsection[it]->Init(theData, total, eV); |
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124 | //std::cout << theXsection[it]->GetXsec(1*MeV) << std::endl; |
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125 | } |
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126 | else if(dataType==4) |
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127 | { |
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128 | theAngularDistribution[it] = new G4NeutronHPAngular; |
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129 | theAngularDistribution[it]->Init(theData); |
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130 | } |
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131 | else if(dataType==5) |
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132 | { |
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133 | theEnergyDistribution[it] = new G4NeutronHPEnergyDistribution; |
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134 | theEnergyDistribution[it]->Init(theData); |
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135 | } |
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136 | else if(dataType==6) |
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137 | { |
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138 | theEnergyAngData[it] = new G4NeutronHPEnAngCorrelation; |
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139 | theEnergyAngData[it]->Init(theData); |
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140 | } |
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141 | else if(dataType==12) |
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142 | { |
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143 | theFinalStatePhotons[it] = new G4NeutronHPPhotonDist; |
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144 | theFinalStatePhotons[it]->InitMean(theData); |
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145 | } |
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146 | else if(dataType==13) |
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147 | { |
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148 | theFinalStatePhotons[it] = new G4NeutronHPPhotonDist; |
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149 | theFinalStatePhotons[it]->InitPartials(theData); |
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150 | } |
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151 | else if(dataType==14) |
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152 | { |
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153 | theFinalStatePhotons[it]->InitAngular(theData); |
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154 | } |
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155 | else if(dataType==15) |
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156 | { |
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157 | theFinalStatePhotons[it]->InitEnergies(theData); |
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158 | } |
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159 | else |
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160 | { |
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161 | throw G4HadronicException(__FILE__, __LINE__, "Data-type unknown to G4NeutronHPInelasticCompFS"); |
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162 | } |
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163 | } |
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164 | theData.close(); |
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165 | } |
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166 | |
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167 | G4int G4NeutronHPInelasticCompFS::SelectExitChannel(G4double eKinetic) |
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168 | { |
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169 | |
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170 | // it = 0 has without Photon |
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171 | G4double running[50]; |
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172 | running[0] = 0; |
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173 | unsigned int i; |
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174 | for(i=0; i<50; i++) |
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175 | { |
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176 | if(i!=0) running[i]=running[i-1]; |
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177 | if(theXsection[i] != 0) |
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178 | { |
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179 | running[i] += std::max(0., theXsection[i]->GetXsec(eKinetic)); |
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180 | } |
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181 | } |
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182 | G4double random = G4UniformRand(); |
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183 | G4double sum = running[49]; |
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184 | G4int it = 50; |
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185 | if(0!=sum) |
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186 | { |
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187 | G4int i0; |
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188 | for(i0=0; i0<50; i0++) |
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189 | { |
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190 | it = i0; |
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191 | if(random < running[i0]/sum) break; |
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192 | } |
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193 | } |
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194 | //debug: it = 1; |
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195 | return it; |
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196 | } |
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197 | |
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198 | |
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199 | //n,p,d,t,he3,a |
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200 | void G4NeutronHPInelasticCompFS::CompositeApply(const G4HadProjectile & theTrack, G4ParticleDefinition * aDefinition) |
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201 | { |
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202 | |
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203 | // prepare neutron |
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204 | theResult.Clear(); |
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205 | G4double eKinetic = theTrack.GetKineticEnergy(); |
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206 | const G4HadProjectile *incidentParticle = &theTrack; |
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207 | G4ReactionProduct theNeutron( const_cast<G4ParticleDefinition *>(incidentParticle->GetDefinition()) ); |
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208 | theNeutron.SetMomentum( incidentParticle->Get4Momentum().vect() ); |
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209 | theNeutron.SetKineticEnergy( eKinetic ); |
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210 | |
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211 | // prepare target |
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212 | G4int i; |
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213 | for(i=0; i<50; i++) |
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214 | { if(theXsection[i] != 0) { break; } } |
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215 | |
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216 | G4double targetMass=0; |
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217 | G4double eps = 0.0001; |
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218 | targetMass = ( G4NucleiProperties::GetNuclearMass(static_cast<G4int>(theBaseA+eps), static_cast<G4int>(theBaseZ+eps))) / |
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219 | G4Neutron::Neutron()->GetPDGMass(); |
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220 | // if(theEnergyAngData[i]!=0) |
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221 | // targetMass = theEnergyAngData[i]->GetTargetMass(); |
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222 | // else if(theAngularDistribution[i]!=0) |
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223 | // targetMass = theAngularDistribution[i]->GetTargetMass(); |
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224 | // else if(theFinalStatePhotons[50]!=0) |
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225 | // targetMass = theFinalStatePhotons[50]->GetTargetMass(); |
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226 | G4Nucleus aNucleus; |
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227 | G4ReactionProduct theTarget; |
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228 | G4ThreeVector neuVelo = (1./incidentParticle->GetDefinition()->GetPDGMass())*theNeutron.GetMomentum(); |
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229 | theTarget = aNucleus.GetBiasedThermalNucleus( targetMass, neuVelo, theTrack.GetMaterial()->GetTemperature()); |
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230 | |
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231 | // prepare the residual mass |
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232 | G4double residualMass=0; |
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233 | G4double residualZ = theBaseZ - aDefinition->GetPDGCharge(); |
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234 | G4double residualA = theBaseA - aDefinition->GetBaryonNumber()+1; |
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235 | residualMass = ( G4NucleiProperties::GetNuclearMass(static_cast<G4int>(residualA+eps), static_cast<G4int>(residualZ+eps)) ) / |
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236 | G4Neutron::Neutron()->GetPDGMass(); |
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237 | |
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238 | // prepare energy in target rest frame |
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239 | G4ReactionProduct boosted; |
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240 | boosted.Lorentz(theNeutron, theTarget); |
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241 | eKinetic = boosted.GetKineticEnergy(); |
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242 | // G4double momentumInCMS = boosted.GetTotalMomentum(); |
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243 | |
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244 | // select exit channel for composite FS class. |
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245 | G4int it = SelectExitChannel( eKinetic ); |
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246 | |
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247 | // set target and neutron in the relevant exit channel |
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248 | InitDistributionInitialState(theNeutron, theTarget, it); |
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249 | |
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250 | G4ReactionProductVector * thePhotons = 0; |
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251 | G4ReactionProductVector * theParticles = 0; |
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252 | G4ReactionProduct aHadron; |
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253 | aHadron.SetDefinition(aDefinition); // what if only cross-sections exist ==> Na 23 11 @@@@ |
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254 | G4double availableEnergy = theNeutron.GetKineticEnergy() + theNeutron.GetMass() - aHadron.GetMass() + |
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255 | (targetMass - residualMass)*G4Neutron::Neutron()->GetPDGMass(); |
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256 | //080730c |
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257 | if ( availableEnergy < 0 ) |
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258 | { |
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259 | //G4cout << "080730c Adjust availavleEnergy " << G4endl; |
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260 | availableEnergy = 0; |
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261 | } |
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262 | G4int nothingWasKnownOnHadron = 0; |
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263 | G4int dummy; |
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264 | G4double eGamm = 0; |
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265 | G4int iLevel=it-1; |
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266 | |
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267 | // TK without photon has it = 0 |
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268 | if( 50 == it ) |
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269 | { |
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270 | |
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271 | // TK Excitation level is not determined |
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272 | iLevel=-1; |
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273 | aHadron.SetKineticEnergy(availableEnergy*residualMass*G4Neutron::Neutron()->GetPDGMass()/ |
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274 | (aHadron.GetMass()+residualMass*G4Neutron::Neutron()->GetPDGMass())); |
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275 | |
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276 | aHadron.SetMomentum(theNeutron.GetMomentum()*(1./theNeutron.GetTotalMomentum())* |
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277 | std::sqrt(aHadron.GetTotalEnergy()*aHadron.GetTotalEnergy()- |
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278 | aHadron.GetMass()*aHadron.GetMass())); |
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279 | |
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280 | /* |
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281 | G4double p2 = ( aHadron.GetTotalEnergy()*aHadron.GetTotalEnergy()-aHadron.GetMass()*aHadron.GetMass() ); |
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282 | G4double p = 0.0; |
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283 | if ( p2 > 0.0 ) |
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284 | { |
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285 | p = std::sqrt( p ); |
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286 | } |
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287 | aHadron.SetMomentum(theNeutron.GetMomentum()*(1./theNeutron.GetTotalMomentum())*p ); |
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288 | */ |
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289 | |
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290 | } |
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291 | else |
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292 | { |
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293 | while( iLevel!=-1 && theGammas.GetLevel(iLevel)==0 ) { iLevel--; } |
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294 | } |
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295 | |
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296 | |
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297 | if ( theAngularDistribution[it] != 0 ) // MF4 |
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298 | { |
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299 | if(theEnergyDistribution[it]!=0) // MF5 |
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300 | { |
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301 | aHadron.SetKineticEnergy(theEnergyDistribution[it]->Sample(eKinetic, dummy)); |
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302 | G4double eSecN = aHadron.GetKineticEnergy(); |
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303 | eGamm = eKinetic-eSecN; |
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304 | for(iLevel=theGammas.GetNumberOfLevels()-1; iLevel>=0; iLevel--) |
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305 | { |
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306 | if(theGammas.GetLevelEnergy(iLevel)<eGamm) break; |
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307 | } |
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308 | G4double random = 2*G4UniformRand(); |
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309 | iLevel+=G4int(random); |
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310 | if(iLevel>theGammas.GetNumberOfLevels()-1)iLevel = theGammas.GetNumberOfLevels()-1; |
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311 | } |
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312 | else |
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313 | { |
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314 | G4double eExcitation = 0; |
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315 | if(iLevel>=0) eExcitation = theGammas.GetLevel(iLevel)->GetLevelEnergy(); |
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316 | while (eKinetic-eExcitation < 0 && iLevel>0) |
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317 | { |
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318 | iLevel--; |
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319 | eExcitation = theGammas.GetLevel(iLevel)->GetLevelEnergy(); |
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320 | } |
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321 | |
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322 | if(getenv("InelasticCompFSLogging") && eKinetic-eExcitation < 0) |
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323 | { |
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324 | throw G4HadronicException(__FILE__, __LINE__, "SEVERE: InelasticCompFS: Consistency of data not good enough, please file report"); |
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325 | } |
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326 | if(eKinetic-eExcitation < 0) eExcitation = 0; |
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327 | if(iLevel!= -1) aHadron.SetKineticEnergy(eKinetic - eExcitation); |
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328 | |
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329 | } |
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330 | theAngularDistribution[it]->SampleAndUpdate(aHadron); |
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331 | |
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332 | if( theFinalStatePhotons[it] == 0 ) |
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333 | { |
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334 | // TK comment Most n,n* eneter to this |
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335 | thePhotons = theGammas.GetDecayGammas(iLevel); |
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336 | eGamm -= theGammas.GetLevelEnergy(iLevel); |
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337 | if(eGamm>0) // @ ok for now, but really needs an efficient way of correllated sampling @ |
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338 | { |
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339 | G4ReactionProduct * theRestEnergy = new G4ReactionProduct; |
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340 | theRestEnergy->SetDefinition(G4Gamma::Gamma()); |
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341 | theRestEnergy->SetKineticEnergy(eGamm); |
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342 | G4double costh = 2.*G4UniformRand()-1.; |
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343 | G4double phi = twopi*G4UniformRand(); |
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344 | theRestEnergy->SetMomentum(eGamm*std::sin(std::acos(costh))*std::cos(phi), |
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345 | eGamm*std::sin(std::acos(costh))*std::sin(phi), |
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346 | eGamm*costh); |
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347 | if(thePhotons == 0) { thePhotons = new G4ReactionProductVector; } |
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348 | thePhotons->push_back(theRestEnergy); |
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349 | } |
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350 | } |
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351 | } |
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352 | else if(theEnergyAngData[it] != 0) // MF6 |
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353 | { |
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354 | theParticles = theEnergyAngData[it]->Sample(eKinetic); |
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355 | } |
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356 | else |
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357 | { |
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358 | // @@@ what to do, if we have photon data, but no info on the hadron itself |
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359 | nothingWasKnownOnHadron = 1; |
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360 | } |
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361 | |
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362 | //G4cout << "theFinalStatePhotons it " << it << G4endl; |
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363 | //G4cout << "theFinalStatePhotons[it] " << theFinalStatePhotons[it] << G4endl; |
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364 | //G4cout << "theFinalStatePhotons it " << it << G4endl; |
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365 | //G4cout << "theFinalStatePhotons[it] " << theFinalStatePhotons[it] << G4endl; |
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366 | //G4cout << "thePhotons " << thePhotons << G4endl; |
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367 | |
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368 | if ( theFinalStatePhotons[it] != 0 ) |
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369 | { |
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370 | // the photon distributions are in the Nucleus rest frame. |
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371 | // TK residual rest frame |
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372 | G4ReactionProduct boosted; |
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373 | boosted.Lorentz(theNeutron, theTarget); |
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374 | G4double anEnergy = boosted.GetKineticEnergy(); |
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375 | thePhotons = theFinalStatePhotons[it]->GetPhotons(anEnergy); |
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376 | G4double aBaseEnergy = theFinalStatePhotons[it]->GetLevelEnergy(); |
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377 | G4double testEnergy = 0; |
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378 | if(thePhotons!=0 && thePhotons->size()!=0) |
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379 | { aBaseEnergy-=thePhotons->operator[](0)->GetTotalEnergy(); } |
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380 | if(theFinalStatePhotons[it]->NeedsCascade()) |
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381 | { |
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382 | while(aBaseEnergy>0.01*keV) |
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383 | { |
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384 | // cascade down the levels |
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385 | G4bool foundMatchingLevel = false; |
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386 | G4int closest = 2; |
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387 | G4double deltaEold = -1; |
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388 | for(G4int i=1; i<it; i++) |
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389 | { |
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390 | if(theFinalStatePhotons[i]!=0) |
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391 | { |
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392 | testEnergy = theFinalStatePhotons[i]->GetLevelEnergy(); |
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393 | } |
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394 | else |
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395 | { |
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396 | testEnergy = 0; |
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397 | } |
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398 | G4double deltaE = std::abs(testEnergy-aBaseEnergy); |
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399 | if(deltaE<0.1*keV) |
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400 | { |
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401 | G4ReactionProductVector * theNext = |
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402 | theFinalStatePhotons[i]->GetPhotons(anEnergy); |
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403 | thePhotons->push_back(theNext->operator[](0)); |
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404 | aBaseEnergy = testEnergy-theNext->operator[](0)->GetTotalEnergy(); |
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405 | delete theNext; |
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406 | foundMatchingLevel = true; |
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407 | break; // ===> |
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408 | } |
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409 | if(theFinalStatePhotons[i]!=0 && ( deltaE<deltaEold||deltaEold<0.) ) |
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410 | { |
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411 | closest = i; |
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412 | deltaEold = deltaE; |
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413 | } |
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414 | } // <=== the break goes here. |
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415 | if(!foundMatchingLevel) |
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416 | { |
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417 | G4ReactionProductVector * theNext = |
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418 | theFinalStatePhotons[closest]->GetPhotons(anEnergy); |
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419 | thePhotons->push_back(theNext->operator[](0)); |
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420 | aBaseEnergy = aBaseEnergy-theNext->operator[](0)->GetTotalEnergy(); |
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421 | delete theNext; |
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422 | } |
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423 | } |
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424 | } |
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425 | } |
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426 | unsigned int i0; |
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427 | if(thePhotons!=0) |
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428 | { |
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429 | for(i0=0; i0<thePhotons->size(); i0++) |
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430 | { |
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431 | // back to lab |
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432 | thePhotons->operator[](i0)->Lorentz(*(thePhotons->operator[](i0)), -1.*theTarget); |
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433 | } |
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434 | } |
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435 | //G4cout << "nothingWasKnownOnHadron " << nothingWasKnownOnHadron << G4endl; |
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436 | if(nothingWasKnownOnHadron) |
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437 | { |
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438 | G4double totalPhotonEnergy = 0; |
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439 | if(thePhotons!=0) |
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440 | { |
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441 | unsigned int nPhotons = thePhotons->size(); |
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442 | unsigned int i0; |
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443 | for(i0=0; i0<nPhotons; i0++) |
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444 | { |
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445 | totalPhotonEnergy += thePhotons->operator[](i0)->GetTotalEnergy(); |
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446 | } |
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447 | } |
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448 | availableEnergy -= totalPhotonEnergy; |
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449 | residualMass += totalPhotonEnergy/G4Neutron::Neutron()->GetPDGMass(); |
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450 | aHadron.SetKineticEnergy(availableEnergy*residualMass*G4Neutron::Neutron()->GetPDGMass()/ |
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451 | (aHadron.GetMass()+residualMass*G4Neutron::Neutron()->GetPDGMass())); |
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452 | G4double CosTheta = 1.0 - 2.0*G4UniformRand(); |
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453 | G4double SinTheta = std::sqrt(1.0 - CosTheta*CosTheta); |
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454 | G4double Phi = twopi*G4UniformRand(); |
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455 | G4ThreeVector Vector(std::cos(Phi)*SinTheta, std::sin(Phi)*SinTheta, CosTheta); |
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456 | //aHadron.SetMomentum(Vector* std::sqrt(aHadron.GetTotalEnergy()*aHadron.GetTotalEnergy()- |
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457 | // aHadron.GetMass()*aHadron.GetMass())); |
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458 | G4double p2 = aHadron.GetTotalEnergy()*aHadron.GetTotalEnergy()- aHadron.GetMass()*aHadron.GetMass(); |
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459 | |
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460 | G4double p = 0.0; |
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461 | if ( p2 > 0.0 ) |
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462 | p = std::sqrt ( p2 ); |
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463 | |
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464 | aHadron.SetMomentum( Vector*p ); |
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465 | |
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466 | } |
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467 | |
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468 | // fill the result |
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469 | // Beware - the recoil is not necessarily in the particles... |
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470 | // Can be calculated from momentum conservation? |
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471 | // The idea is that the particles ar emitted forst, and the gammas only once the |
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472 | // recoil is on the residual; assumption is that gammas do not contribute to |
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473 | // the recoil. |
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474 | // This needs more design @@@ |
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475 | |
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476 | G4int nSecondaries = 2; // the hadron and the recoil |
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477 | G4bool needsSeparateRecoil = false; |
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478 | G4int totalBaryonNumber = 0; |
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479 | G4int totalCharge = 0; |
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480 | G4ThreeVector totalMomentum(0); |
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481 | if(theParticles != 0) |
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482 | { |
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483 | nSecondaries = theParticles->size(); |
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484 | G4ParticleDefinition * aDef; |
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485 | unsigned int i0; |
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486 | for(i0=0; i0<theParticles->size(); i0++) |
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487 | { |
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488 | aDef = theParticles->operator[](i0)->GetDefinition(); |
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489 | totalBaryonNumber+=aDef->GetBaryonNumber(); |
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490 | totalCharge+=G4int(aDef->GetPDGCharge()+eps); |
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491 | totalMomentum += theParticles->operator[](i0)->GetMomentum(); |
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492 | } |
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493 | if(totalBaryonNumber!=G4int(theBaseA+eps+incidentParticle->GetDefinition()->GetBaryonNumber())) |
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494 | { |
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495 | needsSeparateRecoil = true; |
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496 | nSecondaries++; |
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497 | residualA = G4int(theBaseA+eps+incidentParticle->GetDefinition()->GetBaryonNumber() |
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498 | -totalBaryonNumber); |
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499 | residualZ = G4int(theBaseZ+eps+incidentParticle->GetDefinition()->GetPDGCharge() |
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500 | -totalCharge); |
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501 | } |
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502 | } |
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503 | |
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504 | G4int nPhotons = 0; |
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505 | if(thePhotons!=0) { nPhotons = thePhotons->size(); } |
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506 | nSecondaries += nPhotons; |
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507 | |
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508 | G4DynamicParticle * theSec; |
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509 | |
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510 | if( theParticles==0 ) |
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511 | { |
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512 | theSec = new G4DynamicParticle; |
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513 | theSec->SetDefinition(aHadron.GetDefinition()); |
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514 | theSec->SetMomentum(aHadron.GetMomentum()); |
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515 | theResult.AddSecondary(theSec); |
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516 | |
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517 | aHadron.Lorentz(aHadron, theTarget); |
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518 | G4ReactionProduct theResidual; |
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519 | theResidual.SetDefinition(G4ParticleTable::GetParticleTable() |
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520 | ->GetIon(static_cast<G4int>(residualZ), static_cast<G4int>(residualA), 0)); |
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521 | theResidual.SetKineticEnergy(aHadron.GetKineticEnergy()*aHadron.GetMass()/theResidual.GetMass()); |
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522 | |
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523 | //080612TK contribution from Benoit Pirard and Laurent Desorgher (Univ. Bern) #6 |
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524 | //theResidual.SetMomentum(-1.*aHadron.GetMomentum()); |
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525 | G4ThreeVector incidentNeutronMomentum = theNeutron.GetMomentum(); |
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526 | theResidual.SetMomentum(incidentNeutronMomentum - aHadron.GetMomentum()); |
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527 | |
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528 | theResidual.Lorentz(theResidual, -1.*theTarget); |
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529 | G4ThreeVector totalPhotonMomentum(0,0,0); |
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530 | if(thePhotons!=0) |
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531 | { |
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532 | for(i=0; i<nPhotons; i++) |
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533 | { |
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534 | totalPhotonMomentum += thePhotons->operator[](i)->GetMomentum(); |
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535 | } |
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536 | } |
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537 | theSec = new G4DynamicParticle; |
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538 | theSec->SetDefinition(theResidual.GetDefinition()); |
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539 | theSec->SetMomentum(theResidual.GetMomentum()-totalPhotonMomentum); |
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540 | theResult.AddSecondary(theSec); |
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541 | } |
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542 | else |
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543 | { |
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544 | for(i0=0; i0<theParticles->size(); i0++) |
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545 | { |
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546 | theSec = new G4DynamicParticle; |
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547 | theSec->SetDefinition(theParticles->operator[](i0)->GetDefinition()); |
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548 | theSec->SetMomentum(theParticles->operator[](i0)->GetMomentum()); |
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549 | theResult.AddSecondary(theSec); |
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550 | delete theParticles->operator[](i0); |
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551 | } |
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552 | delete theParticles; |
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553 | if(needsSeparateRecoil && residualZ!=0) |
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554 | { |
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555 | G4ReactionProduct theResidual; |
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556 | theResidual.SetDefinition(G4ParticleTable::GetParticleTable() |
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557 | ->GetIon(static_cast<G4int>(residualZ), static_cast<G4int>(residualA), 0)); |
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558 | G4double resiualKineticEnergy = theResidual.GetMass()*theResidual.GetMass(); |
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559 | resiualKineticEnergy += totalMomentum*totalMomentum; |
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560 | resiualKineticEnergy = std::sqrt(resiualKineticEnergy) - theResidual.GetMass(); |
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561 | // cout << "Kinetic energy of the residual = "<<resiualKineticEnergy<<endl; |
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562 | theResidual.SetKineticEnergy(resiualKineticEnergy); |
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563 | |
---|
564 | //080612TK contribution from Benoit Pirard and Laurent Desorgher (Univ. Bern) #4 |
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565 | //theResidual.SetMomentum(-1.*totalMomentum); |
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566 | //G4ThreeVector incidentNeutronMomentum = theNeutron.GetMomentum(); |
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567 | //theResidual.SetMomentum(incidentNeutronMomentum - aHadron.GetMomentum()); |
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568 | //080717 TK Comment still do NOT include photon's mometum which produce by thePhotons |
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569 | theResidual.SetMomentum( theNeutron.GetMomentum() + theTarget.GetMomentum() - totalMomentum ); |
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570 | |
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571 | theSec = new G4DynamicParticle; |
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572 | theSec->SetDefinition(theResidual.GetDefinition()); |
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573 | theSec->SetMomentum(theResidual.GetMomentum()); |
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574 | theResult.AddSecondary(theSec); |
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575 | } |
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576 | } |
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577 | if(thePhotons!=0) |
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578 | { |
---|
579 | for(i=0; i<nPhotons; i++) |
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580 | { |
---|
581 | theSec = new G4DynamicParticle; |
---|
582 | //Bug reported Chao Zhang (Chao.Zhang@usd.edu), Dongming Mei(Dongming.Mei@usd.edu) Feb. 25, 2009 |
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583 | //theSec->SetDefinition(G4Gamma::Gamma()); |
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584 | theSec->SetDefinition( thePhotons->operator[](i)->GetDefinition() ); |
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585 | //But never cause real effect at least with G4NDL3.13 TK |
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586 | theSec->SetMomentum(thePhotons->operator[](i)->GetMomentum()); |
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587 | theResult.AddSecondary(theSec); |
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588 | delete thePhotons->operator[](i); |
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589 | } |
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590 | // some garbage collection |
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591 | delete thePhotons; |
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592 | } |
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593 | |
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594 | //080721 |
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595 | G4ParticleDefinition* targ_pd = G4ParticleTable::GetParticleTable()->GetIon ( (G4int)theBaseZ , (G4int)theBaseA , 0.0 ); |
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596 | G4LorentzVector targ_4p_lab ( theTarget.GetMomentum() , std::sqrt( targ_pd->GetPDGMass()*targ_pd->GetPDGMass() + theTarget.GetMomentum().mag2() ) ); |
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597 | G4LorentzVector proj_4p_lab = theTrack.Get4Momentum(); |
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598 | G4LorentzVector init_4p_lab = proj_4p_lab + targ_4p_lab; |
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599 | adjust_final_state ( init_4p_lab ); |
---|
600 | |
---|
601 | // clean up the primary neutron |
---|
602 | theResult.SetStatusChange(stopAndKill); |
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603 | } |
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