1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4DNASancheExcitationModel.cc,v 1.4 2010/11/11 22:32:22 sincerti Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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28 | // |
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29 | |
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30 | // Created by Z. Francis |
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31 | |
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32 | #include "G4DNASancheExcitationModel.hh" |
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33 | |
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34 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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35 | |
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36 | using namespace std; |
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37 | |
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38 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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39 | |
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40 | G4DNASancheExcitationModel::G4DNASancheExcitationModel(const G4ParticleDefinition*, |
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41 | const G4String& nam) |
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42 | :G4VEmModel(nam),isInitialised(false) |
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43 | { |
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44 | |
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45 | lowEnergyLimit = 2 * eV; |
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46 | highEnergyLimit = 100 * eV; |
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47 | SetLowEnergyLimit(lowEnergyLimit); |
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48 | SetHighEnergyLimit(highEnergyLimit); |
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49 | nLevels = 9; |
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50 | |
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51 | verboseLevel= 0; |
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52 | // Verbosity scale: |
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53 | // 0 = nothing |
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54 | // 1 = warning for energy non-conservation |
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55 | // 2 = details of energy budget |
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56 | // 3 = calculation of cross sections, file openings, sampling of atoms |
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57 | // 4 = entering in methods |
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58 | |
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59 | if (verboseLevel > 0) |
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60 | { |
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61 | G4cout << "Sanche Excitation model is constructed " << G4endl |
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62 | << "Energy range: " |
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63 | << lowEnergyLimit / eV << " eV - " |
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64 | << highEnergyLimit / eV << " eV" |
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65 | << G4endl; |
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66 | } |
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67 | |
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68 | } |
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69 | |
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70 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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71 | |
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72 | G4DNASancheExcitationModel::~G4DNASancheExcitationModel() |
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73 | {} |
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74 | |
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75 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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76 | |
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77 | void G4DNASancheExcitationModel::Initialise(const G4ParticleDefinition* /*particle*/, |
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78 | const G4DataVector& /*cuts*/) |
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79 | { |
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80 | |
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81 | |
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82 | if (verboseLevel > 3) |
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83 | G4cout << "Calling G4DNASancheExcitationModel::Initialise()" << G4endl; |
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84 | |
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85 | // Energy limits |
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86 | |
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87 | if (LowEnergyLimit() < lowEnergyLimit) |
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88 | { |
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89 | G4cout << "G4DNASancheExcitationModel: low energy limit increased from " << |
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90 | LowEnergyLimit()/eV << " eV to " << lowEnergyLimit/eV << " eV" << G4endl; |
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91 | SetLowEnergyLimit(lowEnergyLimit); |
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92 | } |
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93 | |
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94 | if (HighEnergyLimit() > highEnergyLimit) |
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95 | { |
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96 | G4cout << "G4DNASancheExcitationModel: high energy limit decreased from " << |
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97 | HighEnergyLimit()/eV << " eV to " << highEnergyLimit/eV << " eV" << G4endl; |
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98 | SetHighEnergyLimit(highEnergyLimit); |
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99 | } |
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100 | |
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101 | // |
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102 | |
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103 | if (verboseLevel > 0) |
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104 | |
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105 | G4cout << "Sanche Excitation model is initialized " << G4endl |
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106 | << "Energy range: " |
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107 | << LowEnergyLimit() / eV << " eV - " |
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108 | << HighEnergyLimit() / eV << " eV" |
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109 | << G4endl; |
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110 | |
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111 | if(!isInitialised) |
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112 | { |
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113 | isInitialised = true; |
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114 | |
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115 | if(pParticleChange) |
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116 | fParticleChangeForGamma = reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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117 | else |
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118 | fParticleChangeForGamma = new G4ParticleChangeForGamma(); |
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119 | } |
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120 | |
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121 | // InitialiseElementSelectors(particle,cuts); |
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122 | |
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123 | char *path = getenv("G4LEDATA"); |
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124 | std::ostringstream eFullFileName; |
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125 | eFullFileName << path << "/dna/sigma_excitationvib_e_sanche.dat"; |
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126 | std::ifstream input(eFullFileName.str().c_str()); |
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127 | |
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128 | if (!input) |
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129 | { |
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130 | G4Exception("G4DNASancheExcitationModel:::ERROR OPENING XS DATA FILE"); |
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131 | } |
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132 | |
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133 | while(!input.eof()) |
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134 | { |
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135 | double t; |
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136 | input>>t; |
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137 | tdummyVec.push_back(t); |
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138 | input>>map1[t][0]>>map1[t][1]>>map1[t][2]>>map1[t][3]>>map1[t][4]>>map1[t][5]>>map1[t][6]>>map1[t][7]>>map1[t][8]; |
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139 | //G4cout<<t<<" "<<map1[t][0]<<map1[t][1]<<map1[t][2]<<map1[t][3]<<map1[t][4]<<map1[t][5]<<map1[t][6]<<map1[t][7]<<map1[t][8]<<G4endl; |
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140 | } |
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141 | |
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142 | } |
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143 | |
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144 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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145 | |
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146 | G4double G4DNASancheExcitationModel::CrossSectionPerVolume(const G4Material* material, |
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147 | const G4ParticleDefinition* particleDefinition, |
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148 | G4double ekin, |
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149 | G4double, |
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150 | G4double) |
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151 | { |
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152 | if (verboseLevel > 3) |
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153 | G4cout << "Calling CrossSectionPerVolume() of G4DNASancheExcitationModel" << G4endl; |
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154 | |
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155 | // Calculate total cross section for model |
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156 | |
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157 | G4double sigma=0; |
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158 | |
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159 | if (material->GetName() == "G4_WATER") |
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160 | { |
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161 | |
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162 | if (particleDefinition == G4Electron::ElectronDefinition()) |
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163 | { |
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164 | if (ekin >= lowEnergyLimit && ekin < highEnergyLimit) |
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165 | { |
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166 | sigma = Sum(ekin); |
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167 | } |
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168 | } |
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169 | |
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170 | if (verboseLevel > 3) |
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171 | { |
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172 | G4cout << "---> Kinetic energy(eV)=" << ekin/eV << G4endl; |
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173 | G4cout << " - Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl; |
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174 | G4cout << " - Cross section per water molecule (cm^-1)=" << sigma*material->GetAtomicNumDensityVector()[1]/(1./cm) << G4endl; |
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175 | } |
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176 | |
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177 | } // if water |
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178 | |
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179 | |
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180 | return sigma*2*material->GetAtomicNumDensityVector()[1]; |
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181 | // see papers for factor 2 description |
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182 | |
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183 | } |
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184 | |
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185 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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186 | |
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187 | void G4DNASancheExcitationModel::SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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188 | const G4MaterialCutsCouple*, |
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189 | const G4DynamicParticle* aDynamicElectron, |
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190 | G4double, |
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191 | G4double) |
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192 | { |
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193 | |
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194 | if (verboseLevel > 3) |
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195 | G4cout << "Calling SampleSecondaries() of G4DNASancheExcitationModel" << G4endl; |
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196 | |
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197 | G4double electronEnergy0 = aDynamicElectron->GetKineticEnergy(); |
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198 | G4int level = RandomSelect(electronEnergy0); |
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199 | G4double excitationEnergy = VibrationEnergy(level); // levels go from 0 to 8 |
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200 | G4double newEnergy = electronEnergy0 - excitationEnergy; |
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201 | |
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202 | /* |
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203 | if (electronEnergy0 < highEnergyLimit) |
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204 | { |
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205 | if (newEnergy >= lowEnergyLimit) |
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206 | { |
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207 | fParticleChangeForGamma->ProposeMomentumDirection(aDynamicElectron->GetMomentumDirection()); |
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208 | fParticleChangeForGamma->SetProposedKineticEnergy(newEnergy); |
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209 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(excitationEnergy); |
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210 | } |
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211 | |
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212 | else |
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213 | { |
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214 | fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill); |
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215 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(electronEnergy0); |
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216 | } |
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217 | } |
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218 | */ |
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219 | |
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220 | if (electronEnergy0 < highEnergyLimit && newEnergy>0.) |
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221 | { |
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222 | fParticleChangeForGamma->ProposeMomentumDirection(aDynamicElectron->GetMomentumDirection()); |
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223 | fParticleChangeForGamma->SetProposedKineticEnergy(newEnergy); |
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224 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(excitationEnergy); |
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225 | } |
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226 | |
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227 | // |
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228 | } |
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229 | |
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230 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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231 | |
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232 | G4double G4DNASancheExcitationModel::PartialCrossSection(G4double t, G4int level) |
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233 | { |
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234 | std::vector<double>::iterator t2 = std::upper_bound(tdummyVec.begin(),tdummyVec.end(), t/eV); |
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235 | std::vector<double>::iterator t1 = t2-1; |
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236 | |
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237 | double sigma = LinInterpolate((*t1), (*t2), t/eV, map1[*t1][level], map1[*t2][level]); |
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238 | sigma*=1e-16*cm*cm; |
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239 | if(sigma==0.)sigma=1e-30; |
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240 | return (sigma); |
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241 | } |
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242 | |
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243 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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244 | |
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245 | G4double G4DNASancheExcitationModel::VibrationEnergy(G4int level) |
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246 | { |
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247 | G4double energies[9] = {0.01, 0.024, 0.061, 0.092, 0.204, 0.417, 0.460, 0.500, 0.835}; |
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248 | return(energies[level]*eV); |
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249 | } |
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250 | |
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251 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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252 | |
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253 | G4int G4DNASancheExcitationModel::RandomSelect(G4double k) |
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254 | { |
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255 | |
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256 | // Level Selection Counting can be done here ! |
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257 | |
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258 | G4int i = nLevels; |
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259 | G4double value = 0.; |
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260 | std::deque<double> values; |
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261 | |
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262 | while (i > 0) |
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263 | { |
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264 | i--; |
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265 | G4double partial = PartialCrossSection(k,i); |
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266 | values.push_front(partial); |
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267 | value += partial; |
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268 | } |
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269 | |
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270 | value *= G4UniformRand(); |
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271 | |
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272 | i = nLevels; |
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273 | |
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274 | while (i > 0) |
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275 | { |
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276 | i--; |
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277 | if (values[i] > value) |
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278 | { |
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279 | //outcount<<i<<" "<<VibrationEnergy(i)<<G4endl; |
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280 | return i; |
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281 | } |
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282 | value -= values[i]; |
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283 | } |
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284 | |
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285 | //outcount<<0<<" "<<VibrationEnergy(0)<<G4endl; |
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286 | |
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287 | return 0; |
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288 | } |
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289 | |
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290 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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291 | |
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292 | G4double G4DNASancheExcitationModel::Sum(G4double k) |
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293 | { |
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294 | G4double totalCrossSection = 0.; |
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295 | |
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296 | for (G4int i=0; i<nLevels; i++) |
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297 | { |
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298 | totalCrossSection += PartialCrossSection(k,i); |
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299 | } |
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300 | return totalCrossSection; |
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301 | } |
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302 | |
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303 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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304 | |
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305 | G4double G4DNASancheExcitationModel::LinInterpolate(G4double e1, |
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306 | G4double e2, |
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307 | G4double e, |
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308 | G4double xs1, |
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309 | G4double xs2) |
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310 | { |
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311 | G4double a = (xs2 - xs1) / (e2 - e1); |
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312 | G4double b = xs2 - a*e2; |
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313 | G4double value = a*e + b; |
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314 | // G4cout<<"interP >> "<<e1<<" "<<e2<<" "<<e<<" "<<xs1<<" "<<xs2<<" "<<a<<" "<<b<<" "<<value<<G4endl; |
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315 | |
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316 | return value; |
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317 | } |
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318 | |
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