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 | // |
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27 | // $Id: G4ScoreSplittingProcess.cc,v 1.9 2010/12/15 13:55:35 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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29 | // |
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30 | |
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31 | #include "G4ios.hh" |
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32 | #include "G4ScoreSplittingProcess.hh" |
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33 | #include "G4Step.hh" |
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34 | #include "G4VTouchable.hh" |
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35 | #include "G4VPhysicalVolume.hh" |
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36 | #include "G4ParticleChange.hh" |
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37 | #include "G4TransportationManager.hh" |
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38 | #include "G4ParticleChange.hh" |
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39 | #include "G4StepPoint.hh" |
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40 | |
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41 | #include "G4SDManager.hh" |
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42 | #include "G4VSensitiveDetector.hh" |
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43 | |
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44 | #include "G4EnergySplitter.hh" |
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45 | #include "G4TouchableHistory.hh" |
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46 | |
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47 | //-------------------------------- |
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48 | // Constructor with name and type: |
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49 | //-------------------------------- |
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50 | G4ScoreSplittingProcess:: |
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51 | G4ScoreSplittingProcess(const G4String& processName,G4ProcessType theType) |
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52 | :G4VProcess(processName,theType), |
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53 | fOldTouchableH(), fNewTouchableH(), fInitialTouchableH(), fFinalTouchableH() |
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54 | { |
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55 | pParticleChange = &xParticleChange; |
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56 | |
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57 | fSplitStep = new G4Step(); |
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58 | fSplitPreStepPoint = fSplitStep->GetPreStepPoint(); |
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59 | fSplitPostStepPoint = fSplitStep->GetPostStepPoint(); |
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60 | |
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61 | if (verboseLevel>0) |
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62 | { |
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63 | G4cout << GetProcessName() << " is created " << G4endl; |
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64 | } |
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65 | fpEnergySplitter = new G4EnergySplitter(); |
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66 | } |
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67 | |
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68 | // ----------- |
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69 | // Destructor: |
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70 | // ----------- |
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71 | G4ScoreSplittingProcess::~G4ScoreSplittingProcess() |
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72 | { |
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73 | delete fSplitStep; |
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74 | delete fpEnergySplitter; |
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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 | // StartTracking |
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80 | // |
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81 | //------------------------------------------------------ |
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82 | void G4ScoreSplittingProcess::StartTracking(G4Track* trk) |
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83 | { |
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84 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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85 | // Setup initial touchables for the first step |
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86 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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87 | const G4Step* pStep= trk->GetStep(); |
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88 | |
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89 | fOldTouchableH = trk->GetTouchableHandle(); |
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90 | *fSplitPreStepPoint = *(pStep->GetPreStepPoint()); // Best to copy, so as to initialise |
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91 | fSplitPreStepPoint->SetTouchableHandle(fOldTouchableH); |
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92 | fNewTouchableH = fOldTouchableH; |
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93 | *fSplitPostStepPoint= *(pStep->GetPostStepPoint()); // Best to copy, so as to initialise |
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94 | fSplitPostStepPoint->SetTouchableHandle(fNewTouchableH); |
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95 | |
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96 | /// Initialize |
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97 | fSplitPreStepPoint ->SetStepStatus(fUndefined); |
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98 | fSplitPostStepPoint->SetStepStatus(fUndefined); |
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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 | // |
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104 | // PostStepGetPhysicalInteractionLength() |
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105 | // |
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106 | //---------------------------------------------------------- |
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107 | G4double |
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108 | G4ScoreSplittingProcess::PostStepGetPhysicalInteractionLength( |
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109 | const G4Track& /*track*/, |
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110 | G4double /*previousStepSize*/, |
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111 | G4ForceCondition* condition) |
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112 | { |
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113 | // This process must be invoked anyway to score the hit |
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114 | // - to do the scoring if the current volume is a regular structure, or |
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115 | // - else to toggle the flag so that the SteppingManager does the scoring. |
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116 | *condition = StronglyForced; |
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117 | |
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118 | // Future optimisation: check whether in regular structure. |
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119 | // If it is in regular structure, be StronglyForced |
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120 | // If not in regular structure, |
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121 | // ask to be called only if SteppingControl is AvoidHitInvocation |
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122 | // in order to reset it to NormalCondition |
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123 | |
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124 | return DBL_MAX; |
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125 | } |
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126 | |
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127 | //------------------------------------ |
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128 | // |
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129 | // PostStepDoIt() |
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130 | // |
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131 | //------------------------------------ |
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132 | G4VParticleChange* G4ScoreSplittingProcess::PostStepDoIt( |
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133 | const G4Track& track, |
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134 | const G4Step& step) |
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135 | { |
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136 | G4VPhysicalVolume* pCurrentVolume= track.GetVolume(); |
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137 | G4LogicalVolume* pLogicalVolume= pCurrentVolume->GetLogicalVolume(); |
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138 | G4VSensitiveDetector* ptrSD = pLogicalVolume->GetSensitiveDetector(); |
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139 | |
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140 | pParticleChange->Initialize(track); |
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141 | if( ( ! pCurrentVolume->IsRegularStructure() ) || ( !ptrSD ) ) { |
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142 | // Set the flag to make sure that Stepping Manager does the scoring |
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143 | pParticleChange->ProposeSteppingControl( NormalCondition ); |
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144 | } else { |
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145 | G4ThreeVector preStepPosition, postStepPosition, direction, finalPostStepPosition; |
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146 | pParticleChange->ProposeSteppingControl( AvoidHitInvocation ); |
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147 | |
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148 | G4double totalEnergyDeposit= step.GetTotalEnergyDeposit(); |
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149 | G4StepStatus fullStepStatus= step.GetPostStepPoint()->GetStepStatus(); |
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150 | |
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151 | CopyStepStart(step); |
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152 | fSplitPreStepPoint->SetSensitiveDetector(ptrSD); |
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153 | fOldTouchableH = fInitialTouchableH; |
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154 | fNewTouchableH= fOldTouchableH; |
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155 | *fSplitPostStepPoint= *(step.GetPreStepPoint()); |
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156 | |
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157 | // Split the energy |
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158 | // ---------------- |
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159 | G4int numberVoxelsInStep= fpEnergySplitter->SplitEnergyInVolumes( &step ); |
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160 | |
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161 | preStepPosition= step.GetPreStepPoint()->GetPosition(); |
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162 | finalPostStepPosition= step.GetPostStepPoint()->GetPosition(); |
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163 | direction= (finalPostStepPosition - preStepPosition).unit(); |
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164 | |
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165 | fFinalTouchableH= track.GetNextTouchableHandle(); |
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166 | |
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167 | postStepPosition= preStepPosition; |
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168 | // Loop over the sub-parts of this step |
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169 | G4int iStep; |
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170 | for ( iStep=0; iStep < numberVoxelsInStep; iStep++ ){ |
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171 | G4int idVoxel= -1; // Voxel ID |
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172 | G4double stepLength=0.0, energyLoss= 0.0; |
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173 | |
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174 | *fSplitPreStepPoint = *fSplitPostStepPoint; |
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175 | fOldTouchableH = fNewTouchableH; |
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176 | |
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177 | preStepPosition= postStepPosition; |
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178 | fSplitPreStepPoint->SetPosition( preStepPosition ); |
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179 | fSplitPreStepPoint->SetTouchableHandle(fOldTouchableH); |
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180 | |
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181 | fpEnergySplitter->GetLengthAndEnergyDeposited( iStep, idVoxel, stepLength, energyLoss); |
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182 | |
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183 | // Correct the material, so that the track->GetMaterial gives correct answer |
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184 | pLogicalVolume->SetMaterial( fpEnergySplitter->GetVoxelMaterial( iStep) ); // idVoxel) ); |
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185 | |
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186 | postStepPosition= preStepPosition + stepLength * direction; |
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187 | fSplitPostStepPoint->SetPosition(postStepPosition); |
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188 | |
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189 | // Load the Step with the new values |
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190 | fSplitStep->SetStepLength(stepLength); |
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191 | fSplitStep->SetTotalEnergyDeposit(energyLoss); |
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192 | if( iStep < numberVoxelsInStep -1 ){ |
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193 | fSplitStep->GetPostStepPoint()->SetStepStatus( fGeomBoundary ); |
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194 | G4int nextVoxelId= -1; |
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195 | fpEnergySplitter->GetVoxelID( iStep+1, nextVoxelId ); |
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196 | |
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197 | // Create new "next" touchable for each section ?? |
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198 | G4VTouchable* fNewTouchablePtr= |
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199 | CreateTouchableForSubStep( nextVoxelId, postStepPosition ); |
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200 | fNewTouchableH= G4TouchableHandle(fNewTouchablePtr); |
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201 | fSplitPostStepPoint->SetTouchableHandle( fNewTouchableH ); |
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202 | } else { |
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203 | fSplitStep->GetPostStepPoint()->SetStepStatus( fullStepStatus ); |
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204 | fSplitPostStepPoint->SetTouchableHandle( fFinalTouchableH ); |
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205 | } |
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206 | |
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207 | |
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208 | // As first approximation, split the NIEL in the same fractions as the energy deposit |
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209 | G4double eLossFraction; |
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210 | eLossFraction= (totalEnergyDeposit>0.0) ? energyLoss / totalEnergyDeposit : 1.0 ; |
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211 | fSplitStep->SetNonIonizingEnergyDeposit(step.GetNonIonizingEnergyDeposit()*eLossFraction); |
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212 | |
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213 | fSplitPostStepPoint->SetSensitiveDetector( ptrSD ); |
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214 | |
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215 | // Call the Sensitive Detector |
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216 | ptrSD->Hit(fSplitStep); |
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217 | |
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218 | if (verboseLevel>1) Verbose(step); |
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219 | } |
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220 | } |
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221 | |
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222 | // This must change the Stepping Control |
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223 | return pParticleChange; |
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224 | } |
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225 | |
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226 | G4TouchableHistory* |
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227 | G4ScoreSplittingProcess::CreateTouchableForSubStep( G4int newVoxelNum, G4ThreeVector ) |
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228 | { |
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229 | // G4cout << " Creating touchable handle for voxel-no " << newVoxelNum << G4endl; |
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230 | |
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231 | G4TouchableHistory* oldTouchableHistory= dynamic_cast<G4TouchableHistory*>(fOldTouchableH()); |
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232 | G4TouchableHistory* ptrTouchableHistory= G4TransportationManager::GetTransportationManager()-> |
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233 | GetNavigatorForTracking()->CreateTouchableHistory(oldTouchableHistory->GetHistory()); |
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234 | |
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235 | // Change the history |
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236 | G4NavigationHistory* ptrNavHistory= const_cast<G4NavigationHistory*>(ptrTouchableHistory->GetHistory()); |
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237 | G4VPhysicalVolume* curPhysicalVol= ptrNavHistory->GetTopVolume(); |
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238 | |
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239 | EVolume curVolumeType= ptrNavHistory->GetTopVolumeType(); |
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240 | if( curVolumeType == kParameterised ) |
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241 | { |
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242 | ptrNavHistory->BackLevel(); |
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243 | // G4VPVParameterised parameterisedPV= pNewMother |
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244 | G4VPVParameterisation* curParamstn= curPhysicalVol->GetParameterisation(); |
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245 | |
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246 | // From G4ParameterisedNavigation::IdentifyAndPlaceSolid() inline method |
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247 | G4VSolid* sampleSolid = curParamstn->ComputeSolid(newVoxelNum, curPhysicalVol); |
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248 | sampleSolid->ComputeDimensions(curParamstn, newVoxelNum, curPhysicalVol); |
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249 | curParamstn->ComputeTransformation(newVoxelNum, curPhysicalVol); |
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250 | |
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251 | ptrNavHistory->NewLevel( curPhysicalVol, kParameterised, newVoxelNum ); |
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252 | } |
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253 | else |
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254 | { |
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255 | G4cout << " Current volume type is not Parameterised. " << G4endl; |
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256 | G4Exception("G4ScoreSplittingProcess::CreateTouchableForSubStep", |
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257 | "ErrorRegularParamaterisation", JustWarning, |
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258 | "Score Splitting Process is used for Regular Structure - but did not find one here."); |
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259 | } |
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260 | return ptrTouchableHistory; |
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261 | } |
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262 | |
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263 | void G4ScoreSplittingProcess::CopyStepStart(const G4Step & step) |
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264 | { |
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265 | fSplitStep->SetTrack(step.GetTrack()); |
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266 | fSplitStep->SetStepLength(step.GetStepLength()); |
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267 | fSplitStep->SetTotalEnergyDeposit(step.GetTotalEnergyDeposit()); |
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268 | fSplitStep->SetNonIonizingEnergyDeposit(step.GetNonIonizingEnergyDeposit()); |
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269 | fSplitStep->SetControlFlag(step.GetControlFlag()); |
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270 | |
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271 | *fSplitPreStepPoint = *(step.GetPreStepPoint()); |
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272 | |
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273 | fInitialTouchableH= (step.GetPreStepPoint()) ->GetTouchableHandle(); |
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274 | fFinalTouchableH = (step.GetPostStepPoint())->GetTouchableHandle(); |
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275 | } |
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276 | |
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277 | void G4ScoreSplittingProcess::Verbose(const G4Step& step) const |
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278 | { |
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279 | G4cout << "In mass geometry ------------------------------------------------" << G4endl; |
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280 | G4cout << " StepLength : " << step.GetStepLength()/mm << " TotalEnergyDeposit : " |
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281 | << step.GetTotalEnergyDeposit()/MeV << G4endl; |
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282 | G4cout << " PreStepPoint : " |
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283 | << step.GetPreStepPoint()->GetPhysicalVolume()->GetName() << " - "; |
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284 | if(step.GetPreStepPoint()->GetProcessDefinedStep()) |
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285 | { G4cout << step.GetPreStepPoint()->GetProcessDefinedStep()->GetProcessName(); } |
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286 | else |
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287 | { G4cout << "NoProcessAssigned"; } |
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288 | G4cout << G4endl; |
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289 | G4cout << " " << step.GetPreStepPoint()->GetPosition() << G4endl; |
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290 | G4cout << " PostStepPoint : "; |
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291 | if(step.GetPostStepPoint()->GetPhysicalVolume()) |
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292 | { G4cout << step.GetPostStepPoint()->GetPhysicalVolume()->GetName(); } |
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293 | else |
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294 | { G4cout << "OutOfWorld"; } |
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295 | G4cout << " - "; |
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296 | if(step.GetPostStepPoint()->GetProcessDefinedStep()) |
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297 | { G4cout << step.GetPostStepPoint()->GetProcessDefinedStep()->GetProcessName(); } |
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298 | else |
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299 | { G4cout << "NoProcessAssigned"; } |
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300 | G4cout << G4endl; |
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301 | G4cout << " " << step.GetPostStepPoint()->GetPosition() << G4endl; |
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302 | |
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303 | G4cout << "In ghost geometry ------------------------------------------------" << G4endl; |
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304 | G4cout << " StepLength : " << fSplitStep->GetStepLength()/mm |
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305 | << " TotalEnergyDeposit : " |
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306 | << fSplitStep->GetTotalEnergyDeposit()/MeV << G4endl; |
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307 | G4cout << " PreStepPoint : " |
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308 | << fSplitStep->GetPreStepPoint()->GetPhysicalVolume()->GetName() << " [" |
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309 | << fSplitStep->GetPreStepPoint()->GetTouchable()->GetReplicaNumber() |
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310 | << " ]" << " - "; |
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311 | if(fSplitStep->GetPreStepPoint()->GetProcessDefinedStep()) |
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312 | { G4cout << fSplitStep->GetPreStepPoint()->GetProcessDefinedStep()->GetProcessName(); } |
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313 | else |
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314 | { G4cout << "NoProcessAssigned"; } |
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315 | G4cout << G4endl; |
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316 | G4cout << " " << fSplitStep->GetPreStepPoint()->GetPosition() << G4endl; |
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317 | G4cout << " PostStepPoint : "; |
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318 | if(fSplitStep->GetPostStepPoint()->GetPhysicalVolume()) |
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319 | { |
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320 | G4cout << fSplitStep->GetPostStepPoint()->GetPhysicalVolume()->GetName() << " [" |
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321 | << fSplitStep->GetPostStepPoint()->GetTouchable()->GetReplicaNumber() |
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322 | << " ]"; |
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323 | } |
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324 | else |
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325 | { G4cout << "OutOfWorld"; } |
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326 | G4cout << " - "; |
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327 | if(fSplitStep->GetPostStepPoint()->GetProcessDefinedStep()) |
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328 | { G4cout << fSplitStep->GetPostStepPoint()->GetProcessDefinedStep()->GetProcessName(); } |
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329 | else |
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330 | { G4cout << "NoProcessAssigned"; } |
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331 | G4cout << G4endl; |
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332 | G4cout << " " << fSplitStep->GetPostStepPoint()->GetPosition() << " == " |
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333 | << fSplitStep->GetTrack()->GetMomentumDirection() |
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334 | << G4endl; |
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335 | |
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336 | } |
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337 | |
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338 | |
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339 | //---------------------------------------------------------- |
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340 | // |
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341 | // AtRestGetPhysicalInteractionLength() |
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342 | // |
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343 | //---------------------------------------------------------- |
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344 | G4double |
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345 | G4ScoreSplittingProcess::AtRestGetPhysicalInteractionLength( |
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346 | const G4Track& /*track*/, |
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347 | G4ForceCondition* condition) |
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348 | { |
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349 | *condition = NotForced; // Was Forced |
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350 | return DBL_MAX; |
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351 | } |
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352 | |
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353 | |
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354 | //--------------------------------------- |
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355 | // AlongStepGetPhysicalInteractionLength |
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356 | //--------------------------------------- |
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357 | G4double G4ScoreSplittingProcess::AlongStepGetPhysicalInteractionLength( |
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358 | const G4Track& , // track, |
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359 | G4double , // previousStepSize, |
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360 | G4double , // currentMinimumStep, |
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361 | G4double& , // proposedSafety, |
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362 | G4GPILSelection* selection) |
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363 | { |
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364 | *selection = NotCandidateForSelection; |
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365 | return DBL_MAX; |
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366 | } |
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367 | |
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368 | //------------------------------------ |
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369 | // AlongStepDoIt() |
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370 | //------------------------------------ |
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371 | |
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372 | G4VParticleChange* G4ScoreSplittingProcess::AlongStepDoIt( |
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373 | const G4Track& track, const G4Step& ) |
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374 | { |
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375 | // Dummy ParticleChange ie: does nothing |
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376 | // Expecting G4Transportation to move the track |
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377 | dummyParticleChange.Initialize(track); |
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378 | return &dummyParticleChange; |
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379 | } |
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380 | |
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381 | //------------------------------------ |
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382 | // AtRestDoIt() |
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383 | //------------------------------------ |
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384 | G4VParticleChange* G4ScoreSplittingProcess::AtRestDoIt( |
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385 | const G4Track& track, |
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386 | const G4Step&) |
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387 | { |
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388 | pParticleChange->Initialize(track); |
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389 | return pParticleChange; |
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390 | } |
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