1 | // |
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2 | // ******************************************************************** |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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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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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: G4DNABornExcitationModel.cc,v 1.10 2010/08/24 13:51:06 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 | #include "G4DNABornExcitationModel.hh" |
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31 | |
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32 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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33 | |
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34 | using namespace std; |
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35 | |
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36 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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37 | |
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38 | G4DNABornExcitationModel::G4DNABornExcitationModel(const G4ParticleDefinition*, |
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39 | const G4String& nam) |
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40 | :G4VEmModel(nam),isInitialised(false) |
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41 | { |
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42 | verboseLevel= 0; |
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43 | // Verbosity scale: |
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44 | // 0 = nothing |
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45 | // 1 = warning for energy non-conservation |
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46 | // 2 = details of energy budget |
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47 | // 3 = calculation of cross sections, file openings, sampling of atoms |
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48 | // 4 = entering in methods |
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49 | |
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50 | if( verboseLevel>0 ) |
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51 | { |
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52 | G4cout << "Born excitation model is constructed " << G4endl; |
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53 | } |
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54 | |
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55 | } |
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56 | |
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57 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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58 | |
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59 | G4DNABornExcitationModel::~G4DNABornExcitationModel() |
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60 | { |
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61 | // Cross section |
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62 | |
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63 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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64 | for (pos = tableData.begin(); pos != tableData.end(); ++pos) |
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65 | { |
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66 | G4DNACrossSectionDataSet* table = pos->second; |
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67 | delete table; |
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68 | } |
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69 | |
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70 | } |
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71 | |
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72 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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73 | |
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74 | void G4DNABornExcitationModel::Initialise(const G4ParticleDefinition* particle, |
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75 | const G4DataVector& /*cuts*/) |
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76 | { |
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77 | |
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78 | if (verboseLevel > 3) |
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79 | G4cout << "Calling G4DNABornExcitationModel::Initialise()" << G4endl; |
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80 | |
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81 | G4String fileElectron("dna/sigma_excitation_e_born"); |
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82 | G4String fileProton("dna/sigma_excitation_p_born"); |
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83 | |
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84 | G4ParticleDefinition* electronDef = G4Electron::ElectronDefinition(); |
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85 | G4ParticleDefinition* protonDef = G4Proton::ProtonDefinition(); |
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86 | |
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87 | G4String electron; |
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88 | G4String proton; |
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89 | |
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90 | G4double scaleFactor = (1.e-22 / 3.343) * m*m; |
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91 | |
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92 | if (electronDef != 0) |
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93 | { |
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94 | electron = electronDef->GetParticleName(); |
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95 | |
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96 | tableFile[electron] = fileElectron; |
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97 | |
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98 | lowEnergyLimit[electron] = 9. * eV; |
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99 | highEnergyLimit[electron] = 1. * MeV; |
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100 | |
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101 | // Cross section |
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102 | |
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103 | G4DNACrossSectionDataSet* tableE = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor ); |
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104 | tableE->LoadData(fileElectron); |
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105 | |
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106 | tableData[electron] = tableE; |
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107 | |
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108 | } |
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109 | else |
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110 | { |
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111 | G4Exception("G4DNABornExcitationModel::Initialise(): electron is not defined"); |
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112 | } |
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113 | |
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114 | if (protonDef != 0) |
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115 | { |
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116 | proton = protonDef->GetParticleName(); |
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117 | |
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118 | tableFile[proton] = fileProton; |
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119 | |
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120 | lowEnergyLimit[proton] = 500. * keV; |
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121 | highEnergyLimit[proton] = 100. * MeV; |
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122 | |
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123 | // Cross section |
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124 | |
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125 | G4DNACrossSectionDataSet* tableP = new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor ); |
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126 | tableP->LoadData(fileProton); |
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127 | |
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128 | tableData[proton] = tableP; |
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129 | |
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130 | } |
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131 | else |
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132 | { |
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133 | G4Exception("G4DNABornExcitationModel::Initialise(): proton is not defined"); |
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134 | } |
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135 | |
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136 | if (particle==electronDef) |
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137 | { |
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138 | SetLowEnergyLimit(lowEnergyLimit[electron]); |
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139 | SetHighEnergyLimit(highEnergyLimit[electron]); |
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140 | } |
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141 | |
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142 | if (particle==protonDef) |
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143 | { |
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144 | SetLowEnergyLimit(lowEnergyLimit[proton]); |
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145 | SetHighEnergyLimit(highEnergyLimit[proton]); |
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146 | } |
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147 | |
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148 | if( verboseLevel>0 ) |
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149 | { |
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150 | G4cout << "Born excitation model is initialized " << G4endl |
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151 | << "Energy range: " |
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152 | << LowEnergyLimit() / eV << " eV - " |
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153 | << HighEnergyLimit() / keV << " keV for " |
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154 | << particle->GetParticleName() |
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155 | << G4endl; |
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156 | } |
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157 | |
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158 | |
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159 | if(!isInitialised) |
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160 | { |
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161 | isInitialised = true; |
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162 | |
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163 | if(pParticleChange) |
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164 | fParticleChangeForGamma = reinterpret_cast<G4ParticleChangeForGamma*>(pParticleChange); |
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165 | else |
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166 | fParticleChangeForGamma = new G4ParticleChangeForGamma(); |
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167 | } |
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168 | |
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169 | // InitialiseElementSelectors(particle,cuts); |
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170 | |
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171 | } |
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172 | |
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173 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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174 | |
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175 | G4double G4DNABornExcitationModel::CrossSectionPerVolume(const G4Material* material, |
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176 | const G4ParticleDefinition* particleDefinition, |
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177 | G4double ekin, |
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178 | G4double, |
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179 | G4double) |
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180 | { |
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181 | if (verboseLevel > 3) |
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182 | G4cout << "Calling CrossSectionPerVolume() of G4DNABornExcitationModel" << G4endl; |
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183 | |
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184 | if ( |
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185 | particleDefinition != G4Proton::ProtonDefinition() |
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186 | && |
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187 | particleDefinition != G4Electron::ElectronDefinition() |
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188 | ) |
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189 | |
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190 | return 0; |
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191 | |
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192 | // Calculate total cross section for model |
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193 | |
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194 | G4double lowLim = 0; |
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195 | G4double highLim = 0; |
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196 | G4double sigma=0; |
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197 | |
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198 | if (material->GetName() == "G4_WATER") |
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199 | { |
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200 | const G4String& particleName = particleDefinition->GetParticleName(); |
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201 | |
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202 | std::map< G4String,G4double,std::less<G4String> >::iterator pos1; |
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203 | pos1 = lowEnergyLimit.find(particleName); |
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204 | if (pos1 != lowEnergyLimit.end()) |
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205 | { |
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206 | lowLim = pos1->second; |
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207 | } |
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208 | |
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209 | std::map< G4String,G4double,std::less<G4String> >::iterator pos2; |
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210 | pos2 = highEnergyLimit.find(particleName); |
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211 | if (pos2 != highEnergyLimit.end()) |
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212 | { |
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213 | highLim = pos2->second; |
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214 | } |
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215 | |
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216 | if (ekin >= lowLim && ekin < highLim) |
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217 | { |
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218 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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219 | pos = tableData.find(particleName); |
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220 | |
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221 | if (pos != tableData.end()) |
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222 | { |
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223 | G4DNACrossSectionDataSet* table = pos->second; |
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224 | if (table != 0) |
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225 | { |
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226 | sigma = table->FindValue(ekin); |
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227 | } |
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228 | } |
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229 | else |
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230 | { |
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231 | G4Exception("G4DNABornExcitationModel::CrossSectionPerVolume: attempting to calculate cross section for wrong particle"); |
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232 | } |
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233 | } |
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234 | |
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235 | if (verboseLevel > 3) |
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236 | { |
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237 | G4cout << "---> Kinetic energy(eV)=" << ekin/eV << G4endl; |
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238 | G4cout << " - Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl; |
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239 | G4cout << " - Cross section per water molecule (cm^-1)=" << sigma*material->GetAtomicNumDensityVector()[1]/(1./cm) << G4endl; |
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240 | } |
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241 | |
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242 | } // if (waterMaterial) |
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243 | |
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244 | return sigma*material->GetAtomicNumDensityVector()[1]; |
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245 | |
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246 | |
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247 | } |
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248 | |
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249 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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250 | |
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251 | void G4DNABornExcitationModel::SampleSecondaries(std::vector<G4DynamicParticle*>* /*fvect*/, |
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252 | const G4MaterialCutsCouple* /*couple*/, |
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253 | const G4DynamicParticle* aDynamicParticle, |
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254 | G4double, |
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255 | G4double) |
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256 | { |
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257 | |
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258 | if (verboseLevel > 3) |
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259 | G4cout << "Calling SampleSecondaries() of G4DNABornExcitationModel" << G4endl; |
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260 | |
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261 | G4double k = aDynamicParticle->GetKineticEnergy(); |
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262 | |
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263 | const G4String& particleName = aDynamicParticle->GetDefinition()->GetParticleName(); |
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264 | |
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265 | G4int level = RandomSelect(k,particleName); |
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266 | G4double excitationEnergy = waterStructure.ExcitationEnergy(level); |
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267 | G4double newEnergy = k - excitationEnergy; |
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268 | |
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269 | if (newEnergy > 0) |
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270 | { |
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271 | fParticleChangeForGamma->ProposeMomentumDirection(aDynamicParticle->GetMomentumDirection()); |
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272 | fParticleChangeForGamma->SetProposedKineticEnergy(newEnergy); |
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273 | fParticleChangeForGamma->ProposeLocalEnergyDeposit(excitationEnergy); |
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274 | } |
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275 | |
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276 | } |
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277 | |
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278 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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279 | |
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280 | G4int G4DNABornExcitationModel::RandomSelect(G4double k, const G4String& particle) |
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281 | { |
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282 | G4int level = 0; |
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283 | |
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284 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
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285 | pos = tableData.find(particle); |
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286 | |
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287 | if (pos != tableData.end()) |
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288 | { |
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289 | G4DNACrossSectionDataSet* table = pos->second; |
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290 | |
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291 | if (table != 0) |
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292 | { |
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293 | G4double* valuesBuffer = new G4double[table->NumberOfComponents()]; |
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294 | const size_t n(table->NumberOfComponents()); |
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295 | size_t i(n); |
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296 | G4double value = 0.; |
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297 | |
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298 | while (i>0) |
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299 | { |
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300 | i--; |
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301 | valuesBuffer[i] = table->GetComponent(i)->FindValue(k); |
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302 | value += valuesBuffer[i]; |
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303 | } |
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304 | |
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305 | value *= G4UniformRand(); |
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306 | |
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307 | i = n; |
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308 | |
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309 | while (i > 0) |
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310 | { |
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311 | i--; |
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312 | |
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313 | if (valuesBuffer[i] > value) |
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314 | { |
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315 | delete[] valuesBuffer; |
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316 | return i; |
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317 | } |
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318 | value -= valuesBuffer[i]; |
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319 | } |
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320 | |
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321 | if (valuesBuffer) delete[] valuesBuffer; |
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322 | |
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323 | } |
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324 | } |
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325 | else |
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326 | { |
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327 | G4Exception("G4DNABornExcitationModel::RandomSelect attempting to calculate cross section for wrong particle"); |
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328 | } |
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329 | return level; |
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330 | } |
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331 | |
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332 | |
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