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: RunAction.cc,v 1.15 2010/05/10 13:45:49 maire Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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28 | // |
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29 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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31 | |
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32 | #include "RunAction.hh" |
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33 | #include "DetectorConstruction.hh" |
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34 | #include "PrimaryGeneratorAction.hh" |
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35 | |
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36 | #include "G4Run.hh" |
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37 | #include "G4ProcessManager.hh" |
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38 | #include "G4UnitsTable.hh" |
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39 | #include "G4EmCalculator.hh" |
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40 | #include "G4Electron.hh" |
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41 | |
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42 | #include <vector> |
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43 | |
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44 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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45 | |
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46 | RunAction::RunAction(DetectorConstruction* det, PrimaryGeneratorAction* kin) |
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47 | :detector(det), primary(kin) |
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48 | { } |
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49 | |
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50 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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51 | |
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52 | RunAction::~RunAction() |
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53 | { } |
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54 | |
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55 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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56 | |
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57 | void RunAction::BeginOfRunAction(const G4Run*) |
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58 | { |
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59 | //set precision for printing |
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60 | G4int prec = G4cout.precision(6); |
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61 | |
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62 | //instanciate EmCalculator |
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63 | G4EmCalculator emCal; |
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64 | // emCal.SetVerbose(2); |
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65 | |
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66 | // get particle |
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67 | G4ParticleDefinition* particle = primary->GetParticleGun() |
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68 | ->GetParticleDefinition(); |
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69 | G4String partName = particle->GetParticleName(); |
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70 | G4double charge = particle->GetPDGCharge(); |
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71 | G4double energy = primary->GetParticleGun()->GetParticleEnergy(); |
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72 | |
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73 | // get material |
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74 | G4Material* material = detector->GetMaterial(); |
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75 | G4String matName = material->GetName(); |
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76 | G4double density = material->GetDensity(); |
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77 | G4double radl = material->GetRadlen(); |
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78 | |
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79 | G4cout << "\n " << partName << " (" |
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80 | << G4BestUnit(energy,"Energy") << ") in " |
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81 | << material->GetName() << " (density: " |
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82 | << G4BestUnit(density,"Volumic Mass") << "; radiation length: " |
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83 | << G4BestUnit(radl, "Length") << ")" << G4endl; |
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84 | |
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85 | // get cuts |
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86 | GetCuts(); |
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87 | if (charge != 0.) { |
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88 | G4cout << "\n Range cuts : \t gamma " |
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89 | << std::setw(8) << G4BestUnit(rangeCut[0],"Length") |
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90 | << "\t e- " << std::setw(8) << G4BestUnit(rangeCut[1],"Length"); |
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91 | G4cout << "\n Energy cuts : \t gamma " |
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92 | << std::setw(8) << G4BestUnit(energyCut[0],"Energy") |
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93 | << "\t e- " << std::setw(8) << G4BestUnit(energyCut[1],"Energy") |
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94 | << G4endl; |
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95 | } |
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96 | |
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97 | // max energy transfert |
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98 | if (charge != 0.) { |
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99 | G4double Mass_c2 = particle->GetPDGMass(); |
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100 | G4double moverM = electron_mass_c2/Mass_c2; |
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101 | G4double gamM1 = energy/Mass_c2, gam = gamM1 + 1., gamP1 = gam + 1.; |
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102 | G4double Tmax = |
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103 | (2*electron_mass_c2*gamM1*gamP1)/(1.+2*gam*moverM+moverM*moverM); |
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104 | G4double range = emCal.GetCSDARange(Tmax,G4Electron::Electron(),material); |
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105 | |
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106 | G4cout << "\n Max_energy _transferable : " << G4BestUnit(Tmax,"Energy") |
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107 | << " (" << G4BestUnit(range,"Length") << ")" << G4endl; |
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108 | } |
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109 | |
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110 | // get processList and extract EM processes (but not MultipleScattering) |
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111 | G4ProcessVector* plist = particle->GetProcessManager()->GetProcessList(); |
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112 | G4String procName; |
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113 | G4double cut; |
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114 | std::vector<G4String> emName; |
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115 | std::vector<G4double> enerCut; |
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116 | size_t length = plist->size(); |
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117 | for (size_t j=0; j<length; j++) { |
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118 | procName = (*plist)[j]->GetProcessName(); |
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119 | cut = energyCut[1]; |
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120 | if ((procName == "eBrem")||(procName == "muBrems")) cut = energyCut[0]; |
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121 | if (((*plist)[j]->GetProcessType() == fElectromagnetic) && |
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122 | (procName != "msc")) { |
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123 | emName.push_back(procName); |
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124 | enerCut.push_back(cut); |
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125 | } |
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126 | } |
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127 | |
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128 | // print list of processes |
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129 | G4cout << "\n processes : "; |
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130 | for (size_t j=0; j<emName.size();j++) |
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131 | G4cout << "\t" << std::setw(13) << emName[j] << "\t"; |
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132 | G4cout << "\t" << std::setw(13) <<"total"; |
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133 | |
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134 | //compute cross section per atom (only for single material) |
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135 | if (material->GetNumberOfElements() == 1) { |
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136 | G4double Z = material->GetZ(); |
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137 | G4double A = material->GetA(); |
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138 | |
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139 | std::vector<G4double> sigma0; |
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140 | G4double sig, sigtot = 0.; |
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141 | |
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142 | for (size_t j=0; j<emName.size();j++) { |
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143 | sig = emCal.ComputeCrossSectionPerAtom |
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144 | (energy,particle,emName[j],Z,A,enerCut[j]); |
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145 | sigtot += sig; |
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146 | sigma0.push_back(sig); |
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147 | } |
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148 | sigma0.push_back(sigtot); |
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149 | |
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150 | G4cout << "\n \n cross section per atom : "; |
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151 | for (size_t j=0; j<sigma0.size();j++) { |
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152 | G4cout << "\t" << std::setw(13) << G4BestUnit(sigma0[j], "Surface"); |
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153 | } |
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154 | G4cout << G4endl; |
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155 | } |
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156 | |
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157 | //get cross section per volume |
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158 | std::vector<G4double> sigma0; |
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159 | std::vector<G4double> sigma1; |
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160 | std::vector<G4double> sigma2; |
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161 | G4double Sig, SigtotComp = 0., Sigtot = 0.; |
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162 | |
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163 | for (size_t j=0; j<emName.size();j++) { |
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164 | Sig = emCal.ComputeCrossSectionPerVolume |
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165 | (energy,particle,emName[j],material,enerCut[j]); |
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166 | SigtotComp += Sig; |
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167 | sigma0.push_back(Sig); |
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168 | Sig = emCal.GetCrossSectionPerVolume(energy,particle,emName[j],material); |
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169 | Sigtot += Sig; |
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170 | sigma1.push_back(Sig); |
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171 | sigma2.push_back(Sig/density); |
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172 | } |
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173 | sigma0.push_back(SigtotComp); |
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174 | sigma1.push_back(Sigtot); |
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175 | sigma2.push_back(Sigtot/density); |
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176 | |
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177 | //print cross sections |
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178 | G4cout << "\n \n compCrossSectionPerVolume : "; |
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179 | for (size_t j=0; j<sigma0.size();j++) { |
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180 | G4cout << "\t" << std::setw(13) << sigma0[j]*cm << " cm^-1"; |
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181 | } |
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182 | G4cout << "\n cross section per volume : "; |
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183 | for (size_t j=0; j<sigma1.size();j++) { |
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184 | G4cout << "\t" << std::setw(13) << sigma1[j]*cm << " cm^-1"; |
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185 | } |
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186 | |
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187 | G4cout << "\n cross section per mass : "; |
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188 | for (size_t j=0; j<sigma2.size();j++) { |
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189 | G4cout << "\t" << std::setw(13) |
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190 | << G4BestUnit(sigma2[j], "Surface/Mass"); |
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191 | } |
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192 | |
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193 | //print mean free path |
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194 | |
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195 | G4double lambda; |
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196 | |
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197 | G4cout << "\n \n mean free path : "; |
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198 | for (size_t j=0; j<sigma1.size();j++) { |
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199 | lambda = DBL_MAX; |
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200 | if (sigma1[j] > 0.) lambda = 1/sigma1[j]; |
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201 | G4cout << "\t" << std::setw(13) << G4BestUnit( lambda, "Length"); |
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202 | } |
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203 | |
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204 | //mean free path (g/cm2) |
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205 | G4cout << "\n (g/cm2) : "; |
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206 | for (size_t j=0; j<sigma2.size();j++) { |
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207 | lambda = DBL_MAX; |
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208 | if (sigma2[j] > 0.) lambda = 1/sigma2[j]; |
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209 | G4cout << "\t" << std::setw(13) << G4BestUnit( lambda, "Mass/Surface"); |
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210 | } |
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211 | G4cout << G4endl; |
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212 | |
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213 | if (charge == 0.) { |
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214 | G4cout.precision(prec); |
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215 | G4cout << "\n-------------------------------------------------------------\n" |
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216 | << G4endl; |
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217 | return; |
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218 | } |
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219 | |
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220 | //get stopping power |
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221 | std::vector<G4double> dedx1; |
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222 | std::vector<G4double> dedx2; |
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223 | G4double dedx, dedxtot = 0.; |
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224 | |
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225 | for (size_t j=0; j<emName.size();j++) { |
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226 | dedx = emCal.ComputeDEDX(energy,particle,emName[j],material,enerCut[j]); |
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227 | dedx1.push_back(dedx); |
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228 | dedx2.push_back(dedx/density); |
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229 | } |
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230 | dedxtot = emCal.GetDEDX(energy,particle,material); |
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231 | dedx1.push_back(dedxtot); |
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232 | dedx2.push_back(dedxtot/density); |
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233 | |
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234 | //print stopping power |
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235 | G4cout << "\n \n restricted dE/dx : "; |
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236 | for (size_t j=0; j<sigma1.size();j++) { |
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237 | G4cout << "\t" << std::setw(13) << G4BestUnit(dedx1[j],"Energy/Length"); |
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238 | } |
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239 | |
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240 | G4cout << "\n (MeV/g/cm2) : "; |
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241 | for (size_t j=0; j<sigma2.size();j++) { |
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242 | G4cout << "\t" << std::setw(13) << G4BestUnit(dedx2[j],"Energy*Surface/Mass"); |
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243 | } |
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244 | |
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245 | //get range from restricted dedx |
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246 | G4double range1 = emCal.GetRangeFromRestricteDEDX(energy,particle,material); |
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247 | G4double range2 = range1*density; |
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248 | |
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249 | //get range from full dedx |
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250 | G4double Range1 = emCal.GetCSDARange(energy,particle,material); |
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251 | G4double Range2 = Range1*density; |
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252 | |
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253 | //print range |
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254 | G4cout << "\n \n range from restrict dE/dx: " |
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255 | << "\t" << std::setw(8) << G4BestUnit(range1,"Length") |
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256 | << " (" << std::setw(8) << G4BestUnit(range2,"Mass/Surface") << ")"; |
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257 | |
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258 | G4cout << "\n range from full dE/dx : " |
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259 | << "\t" << std::setw(8) << G4BestUnit(Range1,"Length") |
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260 | << " (" << std::setw(8) << G4BestUnit(Range2,"Mass/Surface") << ")"; |
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261 | |
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262 | //get transport mean free path (for multiple scattering) |
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263 | G4double MSmfp1 = emCal.GetMeanFreePath(energy,particle,"msc",material); |
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264 | G4double MSmfp2 = MSmfp1*density; |
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265 | |
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266 | //print transport mean free path |
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267 | G4cout << "\n \n transport mean free path : " |
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268 | << "\t" << std::setw(8) << G4BestUnit(MSmfp1,"Length") |
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269 | << " (" << std::setw(8) << G4BestUnit(MSmfp2,"Mass/Surface") << ")"; |
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270 | |
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271 | if (particle == G4Electron::Electron()) CriticalEnergy(); |
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272 | |
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273 | G4cout << "\n-------------------------------------------------------------\n"; |
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274 | G4cout << G4endl; |
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275 | |
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276 | // reset default precision |
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277 | G4cout.precision(prec); |
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278 | } |
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279 | |
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280 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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281 | |
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282 | void RunAction::EndOfRunAction(const G4Run* ) |
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283 | { } |
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284 | |
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285 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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286 | |
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287 | #include "G4ProductionCutsTable.hh" |
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288 | |
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289 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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290 | |
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291 | void RunAction::GetCuts() |
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292 | { |
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293 | G4ProductionCutsTable* theCoupleTable = |
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294 | G4ProductionCutsTable::GetProductionCutsTable(); |
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295 | |
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296 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
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297 | const G4MaterialCutsCouple* couple = 0; |
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298 | G4int index = 0; |
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299 | for (size_t i=0; i<numOfCouples; i++) { |
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300 | couple = theCoupleTable->GetMaterialCutsCouple(i); |
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301 | if (couple->GetMaterial() == detector->GetMaterial()) {index = i; break;} |
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302 | } |
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303 | |
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304 | rangeCut[0] = |
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305 | (*(theCoupleTable->GetRangeCutsVector(idxG4GammaCut)))[index]; |
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306 | rangeCut[1] = |
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307 | (*(theCoupleTable->GetRangeCutsVector(idxG4ElectronCut)))[index]; |
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308 | rangeCut[2] = |
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309 | (*(theCoupleTable->GetRangeCutsVector(idxG4PositronCut)))[index]; |
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310 | |
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311 | energyCut[0] = |
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312 | (*(theCoupleTable->GetEnergyCutsVector(idxG4GammaCut)))[index]; |
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313 | energyCut[1] = |
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314 | (*(theCoupleTable->GetEnergyCutsVector(idxG4ElectronCut)))[index]; |
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315 | energyCut[2] = |
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316 | (*(theCoupleTable->GetEnergyCutsVector(idxG4PositronCut)))[index]; |
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317 | |
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318 | } |
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319 | |
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320 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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321 | |
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322 | void RunAction::CriticalEnergy() |
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323 | { |
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324 | // compute e- critical energy (Rossi definition) and Moliere radius. |
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325 | // Review of Particle Physics - Eur. Phys. J. C3 (1998) page 147 |
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326 | // |
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327 | G4EmCalculator emCal; |
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328 | |
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329 | const G4Material* material = detector->GetMaterial(); |
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330 | const G4double radl = material->GetRadlen(); |
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331 | G4double ekin = 5*MeV; |
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332 | G4double deioni; |
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333 | G4double err = 1., errmax = 0.001; |
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334 | G4int iter = 0 , itermax = 10; |
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335 | while (err > errmax && iter < itermax) { |
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336 | iter++; |
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337 | deioni = radl* |
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338 | emCal.ComputeDEDX(ekin,G4Electron::Electron(),"eIoni",material); |
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339 | err = std::abs(deioni - ekin)/ekin; |
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340 | ekin = deioni; |
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341 | } |
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342 | G4cout << "\n \n critical energy (Rossi) : " |
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343 | << "\t" << std::setw(8) << G4BestUnit(ekin,"Energy"); |
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344 | |
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345 | //Pdg formula (only for single material) |
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346 | G4double pdga[2] = { 610*MeV, 710*MeV }; |
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347 | G4double pdgb[2] = { 1.24, 0.92 }; |
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348 | G4double EcPdg = 0.; |
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349 | |
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350 | if (material->GetNumberOfElements() == 1) { |
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351 | G4int istat = 0; |
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352 | if (material->GetState() == kStateGas) istat = 1; |
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353 | G4double Zeff = material->GetZ() + pdgb[istat]; |
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354 | EcPdg = pdga[istat]/Zeff; |
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355 | G4cout << "\t\t\t (from Pdg formula : " |
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356 | << std::setw(8) << G4BestUnit(EcPdg,"Energy") << ")"; |
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357 | } |
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358 | |
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359 | const G4double Es = 21.2052*MeV; |
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360 | G4double rMolier1 = Es/ekin, rMolier2 = rMolier1*radl; |
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361 | G4cout << "\n Moliere radius : " |
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362 | << "\t" << std::setw(8) << rMolier1 << " X0 " |
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363 | << "= " << std::setw(8) << G4BestUnit(rMolier2,"Length"); |
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364 | |
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365 | if (material->GetNumberOfElements() == 1) { |
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366 | G4double rMPdg = radl*Es/EcPdg; |
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367 | G4cout << "\t (from Pdg formula : " |
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368 | << std::setw(8) << G4BestUnit(rMPdg,"Length") << ")"; |
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369 | } |
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370 | } |
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371 | |
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372 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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