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 | // Rich advanced example for Geant4 |
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27 | // RichTbSteppingAction.cc for Rich of LHCb |
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28 | // History: |
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29 | // Created: Sajan Easo (Sajan.Easo@cern.ch) |
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30 | // Revision and changes: Patricia Mendez (Patricia.Mendez@cern.ch) |
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31 | ///////////////////////////////////////////////////////////////////////////// |
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32 | #include "globals.hh" |
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33 | #include "RichTbSteppingAction.hh" |
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34 | #include "G4SteppingManager.hh" |
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35 | #include "RichTbAnalysisManager.hh" |
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36 | #include "RichTbMaterial.hh" |
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37 | #include "RichTbGeometryParameters.hh" |
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38 | #include "RichTbMaterialParameters.hh" |
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39 | #include "RichTbRunConfig.hh" |
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40 | #include "RichTbPrimaryGeneratorAction.hh" |
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41 | #include "G4ParticleDefinition.hh" |
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42 | #include "G4DynamicParticle.hh" |
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43 | #include "G4Material.hh" |
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44 | #include "G4Step.hh" |
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45 | #include "G4Track.hh" |
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46 | #include "G4Electron.hh" |
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47 | #include "G4ThreeVector.hh" |
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48 | #include "G4OpticalPhoton.hh" |
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49 | #include "G4PionMinus.hh" |
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50 | |
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51 | #ifdef G4ANALYSIS_USE |
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52 | #include "AIDA/AIDA.h" |
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53 | #endif |
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54 | |
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55 | RichTbSteppingAction:: |
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56 | RichTbSteppingAction(RichTbRunConfig* rConfig , |
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57 | RichTbPrimaryGeneratorAction* RPrimGenAction) |
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58 | { |
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59 | richtbRunConfig= rConfig; |
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60 | rPrimGenAction = RPrimGenAction; |
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61 | HpdPhElectronKE=rConfig->getHpdPhElectronEnergy(); |
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62 | uParticleChange=new G4VParticleChange(); |
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63 | } |
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64 | |
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65 | RichTbSteppingAction::~RichTbSteppingAction() |
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66 | { |
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67 | } |
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68 | |
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69 | void RichTbSteppingAction::UserSteppingAction(const G4Step* aStep) |
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70 | { |
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71 | RichTbGenericHisto(aStep); |
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72 | } |
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73 | |
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74 | void RichTbSteppingAction:: RichTbDebugHisto(const G4Step*) |
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75 | { |
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76 | } |
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77 | |
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78 | void RichTbSteppingAction::RichTbGenericHisto(const G4Step* aStep) |
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79 | { |
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80 | G4StepPoint* pPreStepPoint = aStep ->GetPreStepPoint(); |
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81 | G4StepPoint* pPostStepPoint = aStep ->GetPostStepPoint(); |
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82 | const G4ThreeVector prePos= pPreStepPoint->GetPosition(); |
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83 | const G4ThreeVector postPos= pPostStepPoint->GetPosition(); |
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84 | |
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85 | // In the following 1000 mm is the Z coord of a point |
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86 | // between the mirror and the dowstream end of the vessel. |
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87 | |
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88 | if(prePos.z()<1000*mm && prePos.z() > 0.0*mm ) |
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89 | { |
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90 | //check to see if we are at a boundary |
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91 | |
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92 | if (pPostStepPoint->GetStepStatus() == fGeomBoundary) |
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93 | { |
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94 | |
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95 | G4Track* aPhotTrack = aStep -> GetTrack(); |
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96 | const G4DynamicParticle* aParticle = aPhotTrack->GetDynamicParticle(); |
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97 | const G4double PhotonEnergy = aParticle->GetKineticEnergy(); |
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98 | |
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99 | G4String VolNameD="Agel"; |
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100 | G4String VolNameE="VesselEnclosure"; |
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101 | G4String VolNameF="MirrorSphe"; |
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102 | G4String VolNameG="RadFrame"; |
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103 | G4String VolNameH="FilterBox"; |
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104 | G4String VolNameQ="HpdQuartzWindow"; |
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105 | G4String VolNameP="HpdMaster"; |
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106 | |
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107 | if( aParticle->GetDefinition() == G4OpticalPhoton::OpticalPhoton()) |
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108 | { |
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109 | if( pPreStepPoint -> GetPhysicalVolume() && |
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110 | pPostStepPoint -> GetPhysicalVolume() ) |
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111 | { |
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112 | G4String tpreVol = pPreStepPoint->GetPhysicalVolume()->GetName(); |
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113 | G4String tpostVol = pPostStepPoint->GetPhysicalVolume()->GetName(); |
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114 | |
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115 | #ifdef G4ANALISYS_USE |
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116 | if(richtbRunConfig-> GetRichTbParticleEnergyCode() == 1 || |
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117 | richtbRunConfig-> GetRichTbParticleEnergyCode() == 2 ) |
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118 | { |
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119 | // Optical photons are generated as beam particle. |
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120 | // count the photons entering the aerogel volume. |
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121 | // this is essentially same as the photons generated. |
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122 | |
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123 | if(( tpreVol == VolNameG || tpreVol == VolNameE ) && |
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124 | ( tpostVol == VolNameD ) ) |
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125 | { |
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126 | RichTbAnalysisManager * analysis = |
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127 | RichTbAnalysisManager::getInstance(); |
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128 | analysis->bumpNumPhotonsBeforeAerogel(); |
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129 | } |
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130 | } |
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131 | #endif |
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132 | |
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133 | if(PhotonEnergy > 0.0 ) |
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134 | { |
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135 | |
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136 | const G4double PhotonWavelength = |
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137 | PhotMomWaveConv*1.0*eV/ PhotonEnergy; |
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138 | |
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139 | G4String tpreVol = pPreStepPoint -> GetPhysicalVolume()->GetName(); |
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140 | G4String tpostVol = pPostStepPoint -> GetPhysicalVolume()->GetName(); |
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141 | |
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142 | // First for the mirror volume |
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143 | |
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144 | #ifdef G4ANALYSIS_USE |
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145 | RichTbAnalysisManager * analysis = |
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146 | RichTbAnalysisManager::getInstance(); |
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147 | if(tpreVol == VolNameE && tpostVol == VolNameF ) |
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148 | { |
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149 | analysis->getfhistoWBeforeMirror()->fill(PhotonWavelength); |
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150 | analysis->bumpNumPhotonsBeforeMirror(); |
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151 | } |
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152 | if(tpreVol == VolNameF && tpostVol == VolNameE ) |
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153 | { |
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154 | analysis->getfhistoWAfterMirror()->fill(PhotonWavelength); |
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155 | analysis->bumpNumPhotonsAfterMirror(); |
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156 | } |
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157 | |
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158 | //Now for the Aerogel Volume |
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159 | if(richtbRunConfig-> GetRichTbParticleEnergyCode() == 0 ) |
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160 | { |
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161 | if(( tpreVol == VolNameG || tpreVol == VolNameE ) && |
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162 | ( tpostVol == VolNameD ) ) |
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163 | { |
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164 | if(prePos.z() < postPos.z() ) |
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165 | { |
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166 | RichTbAnalysisManager * analysis = RichTbAnalysisManager::getInstance(); |
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167 | analysis->bumpNumPhotonsBeforeAerogel(); |
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168 | } |
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169 | } |
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170 | } |
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171 | #endif |
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172 | |
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173 | if( ( tpreVol == VolNameD ) && |
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174 | ( tpostVol == VolNameG || tpostVol == VolNameE ) ) |
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175 | { |
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176 | |
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177 | // G4double XatAgelExit=postPos.x(); |
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178 | // G4double YatAgelExit=postPos.y(); |
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179 | // G4double ZatAgelExit=postPos.z(); |
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180 | const G4ThreeVector PhotCurMom = |
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181 | aPhotTrack->GetMomentumDirection(); |
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182 | // G4double CurExitangle= std::acos(PhotCurMom.z()); |
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183 | |
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184 | // Plot the Angle of emission of the photon. |
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185 | // When there is no Raylegh scattering this is the |
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186 | // Cherenkov angle. For now we only consider the charged |
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187 | // track to be of direction 001. Later this may be changed. |
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188 | // So the angle considered is just the angle of the photon |
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189 | // track. |
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190 | |
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191 | #ifdef G4ANALYSIS_USE |
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192 | RichTbAnalysisManager * analysis = |
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193 | RichTbAnalysisManager::getInstance(); |
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194 | |
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195 | const G4ThreeVector PhotOrgUnitMom = |
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196 | aPhotTrack->GetVertexMomentumDirection(); |
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197 | G4double Ckv_angle= std::acos(PhotOrgUnitMom.z()); |
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198 | |
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199 | analysis->getfhistoCkvProdSmall()->fill(Ckv_angle); |
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200 | |
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201 | // Now for the photon emission point in aerogel |
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202 | |
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203 | const G4ThreeVector PhotEmisPt = aPhotTrack->GetVertexPosition(); |
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204 | analysis->getfhistoEmisZ()->fill( PhotEmisPt.z()); |
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205 | #endif |
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206 | } |
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207 | } |
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208 | } |
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209 | } |
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210 | } |
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211 | } |
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212 | } |
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