1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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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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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 | // |
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27 | // $Id: G4VTransitionRadiation.cc,v 1.5 2006/06/29 19:56:23 gunter Exp $ |
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28 | // GEANT4 tag $Name: $ |
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29 | // |
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30 | // G4VTransitionRadiation class -- implementation file |
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31 | |
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32 | // GEANT 4 class implementation file --- Copyright CERN 1995 |
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33 | // CERN Geneva Switzerland |
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34 | |
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35 | // History: |
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36 | // 29.02.04 V.Ivanchenko create |
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37 | // 28.07.05, P.Gumplinger add G4ProcessType to constructor |
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38 | |
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39 | #include "G4VTransitionRadiation.hh" |
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40 | #include "G4ParticleDefinition.hh" |
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41 | #include "G4VTRModel.hh" |
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42 | #include "G4Material.hh" |
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43 | #include "G4Region.hh" |
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44 | #include "G4TransportationManager.hh" |
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45 | |
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46 | /////////////////////////////////////////////////////////////////////// |
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47 | |
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48 | using namespace std; |
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49 | |
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50 | G4VTransitionRadiation::G4VTransitionRadiation( const G4String& processName, |
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51 | G4ProcessType type ) |
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52 | : G4VDiscreteProcess(processName, type), |
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53 | nSteps(0), |
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54 | gammaMin(100), |
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55 | cosDThetaMax(cos(0.1)) |
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56 | { |
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57 | Clear(); |
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58 | } |
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59 | |
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60 | /////////////////////////////////////////////////////////////////////// |
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61 | |
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62 | G4VTransitionRadiation::~G4VTransitionRadiation() |
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63 | { |
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64 | Clear(); |
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65 | } |
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66 | |
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67 | /////////////////////////////////////////////////////////////////////// |
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68 | |
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69 | void G4VTransitionRadiation::Clear() |
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70 | { |
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71 | materials.clear(); |
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72 | steps.clear(); |
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73 | normals.clear(); |
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74 | nSteps = 0; |
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75 | } |
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76 | |
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77 | /////////////////////////////////////////////////////////////////////// |
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78 | |
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79 | G4VParticleChange* G4VTransitionRadiation::PostStepDoIt( |
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80 | const G4Track& track, |
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81 | const G4Step& step) |
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82 | { |
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83 | |
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84 | // Fill temporary vectors |
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85 | |
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86 | const G4Material* material = track.GetMaterial(); |
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87 | G4double length = step.GetStepLength(); |
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88 | G4ThreeVector direction = track.GetMomentumDirection(); |
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89 | |
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90 | if(nSteps == 0) { |
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91 | |
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92 | nSteps = 1; |
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93 | materials.push_back(material); |
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94 | steps.push_back(length); |
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95 | const G4StepPoint* point = step.GetPreStepPoint(); |
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96 | startingPosition = point->GetPosition(); |
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97 | startingDirection = point->GetMomentumDirection(); |
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98 | G4bool valid = true; |
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99 | G4ThreeVector n = G4TransportationManager::GetTransportationManager() |
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100 | ->GetNavigatorForTracking()->GetLocalExitNormal(&valid); |
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101 | if(valid) normals.push_back(n); |
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102 | else normals.push_back(direction); |
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103 | |
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104 | } else { |
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105 | |
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106 | if(material == materials[nSteps-1]) { |
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107 | steps[nSteps-1] += length; |
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108 | } else { |
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109 | nSteps++; |
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110 | materials.push_back(material); |
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111 | steps.push_back(length); |
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112 | G4bool valid = true; |
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113 | G4ThreeVector n = G4TransportationManager::GetTransportationManager() |
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114 | ->GetNavigatorForTracking()->GetLocalExitNormal(&valid); |
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115 | if(valid) normals.push_back(n); |
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116 | else normals.push_back(direction); |
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117 | } |
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118 | } |
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119 | |
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120 | // Check POstStepPoint condition |
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121 | |
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122 | if(track.GetTrackStatus() == fStopAndKill || |
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123 | track.GetVolume()->GetLogicalVolume()->GetRegion() != region || |
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124 | startingDirection.x()*direction.x() + |
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125 | startingDirection.y()*direction.y() + |
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126 | startingDirection.z()*direction.z() < cosDThetaMax) |
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127 | { |
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128 | if(model) { |
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129 | model->GenerateSecondaries(*pParticleChange, materials, steps, |
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130 | normals, startingPosition, track); |
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131 | } |
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132 | Clear(); |
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133 | } |
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134 | |
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135 | return pParticleChange; |
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136 | } |
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137 | |
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138 | /////////////////////////////////////////////////////////////////////// |
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139 | |
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140 | G4bool G4VTransitionRadiation::IsApplicable( |
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141 | const G4ParticleDefinition& aParticle) |
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142 | { |
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143 | return ( aParticle.GetPDGCharge() != 0.0 ); |
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144 | } |
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145 | |
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146 | /////////////////////////////////////////////////////////////////////// |
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147 | |
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148 | |
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149 | void G4VTransitionRadiation::SetRegion(const G4Region* reg) |
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150 | { |
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151 | region = reg; |
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152 | } |
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153 | |
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154 | /////////////////////////////////////////////////////////////////////// |
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155 | |
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156 | void G4VTransitionRadiation::SetModel(G4VTRModel* m) |
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157 | { |
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158 | model = m; |
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159 | } |
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160 | |
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161 | /////////////////////////////////////////////////////////////////////// |
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162 | |
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163 | void G4VTransitionRadiation::PrintInfoDefinition() |
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164 | { |
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165 | if(model) model->PrintInfo(); |
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166 | } |
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167 | |
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168 | /////////////////////////////////////////////////////////////////////// |
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