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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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: G4EmMultiModel.cc,v 1.8 2010/08/17 17:36:59 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: emutils-V09-03-23 $ |
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28 | // |
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29 | // ------------------------------------------------------------------- |
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30 | // |
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31 | // GEANT4 Class file |
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32 | // |
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33 | // |
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34 | // File name: G4EmMultiModel |
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35 | // |
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36 | // Author: Vladimir Ivanchenko |
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37 | // |
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38 | // Creation date: 03.05.2004 |
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39 | // |
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40 | // Modifications: |
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41 | // 15-04-05 optimize internal interface (V.Ivanchenko) |
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42 | // 04-07-10 updated interfaces according to g4 9.4 (V.Ivanchenko) |
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43 | // |
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44 | |
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45 | |
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46 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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47 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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48 | |
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49 | #include "G4EmMultiModel.hh" |
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50 | #include "Randomize.hh" |
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51 | |
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52 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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53 | |
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54 | G4EmMultiModel::G4EmMultiModel(const G4String& nam) |
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55 | : G4VEmModel(nam), nModels(0) |
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56 | { |
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57 | model.clear(); |
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58 | cross_section.clear(); |
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59 | } |
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60 | |
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61 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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62 | |
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63 | G4EmMultiModel::~G4EmMultiModel() |
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64 | {} |
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65 | |
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66 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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67 | |
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68 | void G4EmMultiModel::AddModel(G4VEmModel* p) |
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69 | { |
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70 | cross_section.push_back(0.0); |
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71 | model.push_back(p); |
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72 | ++nModels; |
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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 G4EmMultiModel::Initialise(const G4ParticleDefinition* p, |
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78 | const G4DataVector& cuts) |
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79 | { |
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80 | if(nModels > 0) { |
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81 | G4cout << "### Initialisation of EM MultiModel " << GetName() |
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82 | << " including following list of models:" << G4endl; |
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83 | for(G4int i=0; i<nModels; ++i) { |
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84 | G4cout << " " << (model[i])->GetName(); |
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85 | (model[i])->SetParticleChange(pParticleChange, GetModelOfFluctuations()); |
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86 | (model[i])->Initialise(p, cuts); |
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87 | } |
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88 | G4cout << G4endl; |
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89 | } |
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90 | } |
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91 | |
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92 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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93 | |
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94 | G4double G4EmMultiModel::ComputeDEDX(const G4MaterialCutsCouple* couple, |
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95 | const G4ParticleDefinition* p, |
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96 | G4double kineticEnergy, |
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97 | G4double cutEnergy) |
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98 | { |
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99 | SetCurrentCouple(couple); |
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100 | G4double dedx = 0.0; |
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101 | |
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102 | if(nModels > 0) { |
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103 | for(G4int i=0; i<nModels; i++) { |
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104 | dedx += (model[i])->ComputeDEDX(couple, p, cutEnergy, kineticEnergy); |
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105 | } |
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106 | } |
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107 | |
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108 | return dedx; |
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109 | } |
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110 | |
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111 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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112 | |
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113 | G4double G4EmMultiModel::ComputeCrossSectionPerAtom(const G4ParticleDefinition* p, |
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114 | G4double kinEnergy, |
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115 | G4double Z, |
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116 | G4double A, |
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117 | G4double cutEnergy, |
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118 | G4double maxEnergy) |
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119 | { |
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120 | G4double cross = 0.0; |
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121 | if(nModels>0) { |
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122 | for(G4int i=0; i<nModels; ++i) { |
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123 | (model[i])->SetCurrentCouple(CurrentCouple()); |
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124 | cross += (model[i])->ComputeCrossSectionPerAtom(p, kinEnergy, Z, A, |
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125 | cutEnergy, maxEnergy); |
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126 | } |
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127 | } |
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128 | return cross; |
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129 | } |
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130 | |
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131 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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132 | |
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133 | void G4EmMultiModel::SampleSecondaries(std::vector<G4DynamicParticle*>* vdp, |
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134 | const G4MaterialCutsCouple* couple, |
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135 | const G4DynamicParticle* dp, |
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136 | G4double minEnergy, |
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137 | G4double maxEnergy) |
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138 | { |
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139 | SetCurrentCouple(couple); |
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140 | if(nModels > 0) { |
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141 | G4int i; |
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142 | G4double cross = 0.0; |
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143 | for(i=0; i<nModels; ++i) { |
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144 | cross += (model[i])->CrossSection(couple, dp->GetParticleDefinition(), |
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145 | dp->GetKineticEnergy(), minEnergy, maxEnergy); |
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146 | cross_section[i] = cross; |
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147 | } |
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148 | |
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149 | cross *= G4UniformRand(); |
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150 | |
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151 | for(i=0; i<nModels; ++i) { |
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152 | if(cross <= cross_section[i]) { |
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153 | (model[i])->SampleSecondaries(vdp, couple, dp, minEnergy, maxEnergy); |
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154 | return; |
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155 | } |
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156 | } |
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157 | } |
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158 | } |
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159 | |
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160 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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161 | |
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