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 | // $Id: G4VMultipleScattering.cc,v 1.77 2009/10/29 18:07:08 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-03 $ |
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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: G4VMultipleScattering |
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35 | // |
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36 | // Author: Vladimir Ivanchenko on base of Laszlo Urban code |
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37 | // |
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38 | // Creation date: 25.03.2003 |
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39 | // |
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40 | // Modifications: |
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41 | // |
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42 | // 13.04.03 Change printout (V.Ivanchenko) |
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43 | // 04-06-03 Fix compilation warnings (V.Ivanchenko) |
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44 | // 16-07-03 Use G4VMscModel interface (V.Ivanchenko) |
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45 | // 03-11-03 Fix initialisation problem in RetrievePhysicsTable (V.Ivanchenko) |
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46 | // 04-11-03 Update PrintInfoDefinition (V.Ivanchenko) |
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47 | // 01-03-04 SampleCosineTheta signature changed |
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48 | // 22-04-04 SampleCosineTheta signature changed back to original |
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49 | // 27-08-04 Add InitialiseForRun method (V.Ivanchneko) |
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50 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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51 | // 11-03-05 Shift verbose level by 1 (V.Ivantchenko) |
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52 | // 15-04-05 optimize internal interface (V.Ivanchenko) |
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53 | // 15-04-05 remove boundary flag (V.Ivanchenko) |
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54 | // 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko) |
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55 | // 12-04-07 Add verbosity at destruction (V.Ivanchenko) |
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56 | // 27-10-07 Virtual functions moved to source (V.Ivanchenko) |
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57 | // 11-03-08 Set skin value does not effect step limit type (V.Ivanchenko) |
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58 | // 24-06-09 Removed hidden bin in G4PhysicsVector (V.Ivanchenko) |
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59 | // |
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60 | // Class Description: |
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61 | // |
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62 | // It is the generic process of multiple scattering it includes common |
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63 | // part of calculations for all charged particles |
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64 | |
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65 | // ------------------------------------------------------------------- |
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66 | // |
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67 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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69 | |
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70 | #include "G4VMultipleScattering.hh" |
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71 | #include "G4LossTableManager.hh" |
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72 | #include "G4Step.hh" |
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73 | #include "G4ParticleDefinition.hh" |
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74 | #include "G4VEmFluctuationModel.hh" |
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75 | #include "G4DataVector.hh" |
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76 | #include "G4PhysicsTable.hh" |
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77 | #include "G4PhysicsVector.hh" |
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78 | #include "G4PhysicsLogVector.hh" |
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79 | #include "G4UnitsTable.hh" |
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80 | #include "G4ProductionCutsTable.hh" |
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81 | #include "G4Region.hh" |
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82 | #include "G4RegionStore.hh" |
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83 | #include "G4PhysicsTableHelper.hh" |
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84 | #include "G4GenericIon.hh" |
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85 | #include "G4Electron.hh" |
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86 | #include "G4EmConfigurator.hh" |
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87 | |
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88 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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89 | |
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90 | G4VMultipleScattering::G4VMultipleScattering(const G4String& name, |
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91 | G4ProcessType type): |
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92 | G4VContinuousDiscreteProcess(name, type), |
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93 | buildLambdaTable(true), |
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94 | theLambdaTable(0), |
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95 | firstParticle(0), |
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96 | stepLimit(fUseSafety), |
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97 | skin(3.0), |
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98 | facrange(0.04), |
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99 | facgeom(2.5), |
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100 | latDisplasment(true), |
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101 | isIon(false), |
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102 | currentParticle(0), |
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103 | currentCouple(0) |
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104 | { |
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105 | SetVerboseLevel(1); |
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106 | SetProcessSubType(fMultipleScattering); |
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107 | |
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108 | // Size of tables assuming spline |
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109 | minKinEnergy = 0.1*keV; |
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110 | maxKinEnergy = 10.0*TeV; |
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111 | nBins = 77; |
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112 | |
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113 | // default limit on polar angle |
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114 | polarAngleLimit = 0.0; |
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115 | |
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116 | pParticleChange = &fParticleChange; |
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117 | |
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118 | modelManager = new G4EmModelManager(); |
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119 | (G4LossTableManager::Instance())->Register(this); |
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120 | |
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121 | } |
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122 | |
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123 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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124 | |
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125 | G4VMultipleScattering::~G4VMultipleScattering() |
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126 | { |
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127 | if(1 < verboseLevel) { |
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128 | G4cout << "G4VMultipleScattering destruct " << GetProcessName() |
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129 | << G4endl; |
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130 | } |
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131 | delete modelManager; |
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132 | if (theLambdaTable) { |
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133 | theLambdaTable->clearAndDestroy(); |
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134 | delete theLambdaTable; |
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135 | } |
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136 | (G4LossTableManager::Instance())->DeRegister(this); |
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137 | } |
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138 | |
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139 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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140 | |
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141 | void G4VMultipleScattering::AddEmModel(G4int order, G4VEmModel* p, |
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142 | const G4Region* region) |
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143 | { |
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144 | G4VEmFluctuationModel* fm = 0; |
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145 | modelManager->AddEmModel(order, p, fm, region); |
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146 | if(p) p->SetParticleChange(pParticleChange); |
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147 | } |
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148 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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149 | |
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150 | void G4VMultipleScattering::SetModel(G4VMscModel* p, G4int index) |
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151 | { |
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152 | G4int n = mscModels.size(); |
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153 | if(index >= n) { for(G4int i=n; i<=index; ++i) {mscModels.push_back(0);} } |
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154 | mscModels[index] = p; |
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155 | } |
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156 | |
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157 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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158 | |
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159 | G4VMscModel* G4VMultipleScattering::Model(G4int index) |
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160 | { |
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161 | G4VMscModel* p = 0; |
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162 | if(index >= 0 && index < G4int(mscModels.size())) { p = mscModels[index]; } |
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163 | return p; |
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164 | } |
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165 | |
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166 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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167 | |
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168 | G4VEmModel* |
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169 | G4VMultipleScattering::GetModelByIndex(G4int idx, G4bool ver) const |
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170 | { |
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171 | return modelManager->GetModel(idx, ver); |
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172 | } |
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173 | |
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174 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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175 | |
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176 | void G4VMultipleScattering::BuildPhysicsTable(const G4ParticleDefinition& part) |
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177 | { |
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178 | G4String num = part.GetParticleName(); |
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179 | if(1 < verboseLevel) { |
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180 | G4cout << "### G4VMultipleScattering::BuildPhysicsTable() for " |
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181 | << GetProcessName() |
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182 | << " and particle " << num |
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183 | << G4endl; |
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184 | } |
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185 | |
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186 | if (buildLambdaTable && firstParticle == &part) { |
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187 | |
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188 | const G4ProductionCutsTable* theCoupleTable= |
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189 | G4ProductionCutsTable::GetProductionCutsTable(); |
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190 | size_t numOfCouples = theCoupleTable->GetTableSize(); |
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191 | |
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192 | G4bool splineFlag = (G4LossTableManager::Instance())->SplineFlag(); |
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193 | |
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194 | G4PhysicsLogVector* aVector = 0; |
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195 | G4PhysicsLogVector* bVector = 0; |
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196 | |
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197 | for (size_t i=0; i<numOfCouples; ++i) { |
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198 | |
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199 | if (theLambdaTable->GetFlag(i)) { |
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200 | // create physics vector and fill it |
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201 | const G4MaterialCutsCouple* couple = |
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202 | theCoupleTable->GetMaterialCutsCouple(i); |
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203 | if(!bVector) { |
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204 | aVector = static_cast<G4PhysicsLogVector*>(PhysicsVector(couple)); |
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205 | bVector = aVector; |
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206 | } else { |
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207 | aVector = new G4PhysicsLogVector(*bVector); |
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208 | } |
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209 | //G4PhysicsVector* aVector = PhysicsVector(couple); |
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210 | aVector->SetSpline(splineFlag); |
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211 | modelManager->FillLambdaVector(aVector, couple, false); |
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212 | if(splineFlag) aVector->FillSecondDerivatives(); |
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213 | G4PhysicsTableHelper::SetPhysicsVector(theLambdaTable, i, aVector); |
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214 | } |
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215 | } |
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216 | |
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217 | if(1 < verboseLevel) { |
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218 | G4cout << "Lambda table is built for " |
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219 | << num |
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220 | << G4endl; |
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221 | } |
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222 | } |
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223 | if(verboseLevel>0 && ( num == "e-" || num == "mu+" || |
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224 | num == "proton" || num == "pi-" || |
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225 | num == "GenericIon")) { |
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226 | PrintInfoDefinition(); |
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227 | if(2 < verboseLevel && theLambdaTable) G4cout << *theLambdaTable << G4endl; |
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228 | } |
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229 | |
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230 | if(1 < verboseLevel) { |
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231 | G4cout << "### G4VMultipleScattering::BuildPhysicsTable() done for " |
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232 | << GetProcessName() |
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233 | << " and particle " << num |
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234 | << G4endl; |
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235 | } |
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236 | } |
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237 | |
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238 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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239 | |
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240 | void G4VMultipleScattering::PreparePhysicsTable(const G4ParticleDefinition& part) |
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241 | { |
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242 | if (!firstParticle) { |
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243 | currentCouple = 0; |
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244 | if(part.GetParticleType() == "nucleus" && |
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245 | part.GetParticleSubType() == "generic") { |
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246 | firstParticle = G4GenericIon::GenericIon(); |
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247 | isIon = true; |
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248 | } else { |
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249 | firstParticle = ∂ |
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250 | if(part.GetParticleType() == "nucleus" || |
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251 | part.GetPDGMass() > GeV) {isIon = true;} |
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252 | } |
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253 | // limitations for ions |
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254 | if(isIon) { |
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255 | SetStepLimitType(fMinimal); |
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256 | SetLateralDisplasmentFlag(false); |
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257 | SetBuildLambdaTable(false); |
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258 | } |
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259 | currentParticle = ∂ |
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260 | } |
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261 | |
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262 | if(1 < verboseLevel) { |
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263 | G4cout << "### G4VMultipleScattering::PrepearPhysicsTable() for " |
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264 | << GetProcessName() |
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265 | << " and particle " << part.GetParticleName() |
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266 | << " local particle " << firstParticle->GetParticleName() |
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267 | << G4endl; |
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268 | } |
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269 | |
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270 | (G4LossTableManager::Instance())->EmConfigurator()->AddModels(); |
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271 | |
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272 | if(firstParticle == &part) { |
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273 | |
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274 | InitialiseProcess(firstParticle); |
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275 | |
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276 | // initialisation of models |
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277 | G4int nmod = modelManager->NumberOfModels(); |
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278 | for(G4int i=0; i<nmod; ++i) { |
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279 | G4VMscModel* msc = static_cast<G4VMscModel*>(modelManager->GetModel(i)); |
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280 | if(isIon) { |
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281 | msc->SetStepLimitType(fMinimal); |
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282 | msc->SetLateralDisplasmentFlag(false); |
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283 | msc->SetRangeFactor(0.2); |
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284 | } else { |
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285 | msc->SetStepLimitType(StepLimitType()); |
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286 | msc->SetLateralDisplasmentFlag(LateralDisplasmentFlag()); |
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287 | msc->SetSkin(Skin()); |
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288 | msc->SetRangeFactor(RangeFactor()); |
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289 | msc->SetGeomFactor(GeomFactor()); |
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290 | } |
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291 | msc->SetPolarAngleLimit(polarAngleLimit); |
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292 | if(msc->HighEnergyLimit() > maxKinEnergy) { |
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293 | msc->SetHighEnergyLimit(maxKinEnergy); |
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294 | } |
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295 | } |
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296 | |
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297 | modelManager->Initialise(firstParticle, G4Electron::Electron(), |
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298 | 10.0, verboseLevel); |
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299 | |
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300 | // prepare tables |
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301 | if(buildLambdaTable) { |
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302 | theLambdaTable = G4PhysicsTableHelper::PreparePhysicsTable(theLambdaTable); |
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303 | } |
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304 | } |
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305 | } |
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306 | |
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307 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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308 | |
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309 | void G4VMultipleScattering::PrintInfoDefinition() |
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310 | { |
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311 | if (0 < verboseLevel) { |
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312 | G4cout << G4endl << GetProcessName() |
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313 | << ": for " << firstParticle->GetParticleName() |
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314 | << " SubType= " << GetProcessSubType() |
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315 | << G4endl; |
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316 | if (theLambdaTable) { |
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317 | G4cout << " Lambda tables from " |
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318 | << G4BestUnit(MinKinEnergy(),"Energy") |
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319 | << " to " |
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320 | << G4BestUnit(MaxKinEnergy(),"Energy") |
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321 | << " in " << nBins << " bins, spline: " |
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322 | << (G4LossTableManager::Instance())->SplineFlag() |
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323 | << G4endl; |
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324 | } |
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325 | PrintInfo(); |
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326 | modelManager->DumpModelList(verboseLevel); |
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327 | if (2 < verboseLevel) { |
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328 | G4cout << "LambdaTable address= " << theLambdaTable << G4endl; |
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329 | if(theLambdaTable) G4cout << (*theLambdaTable) << G4endl; |
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330 | } |
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331 | } |
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332 | } |
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333 | |
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334 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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335 | |
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336 | G4double G4VMultipleScattering::AlongStepGetPhysicalInteractionLength( |
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337 | const G4Track& track, |
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338 | G4double, |
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339 | G4double currentMinimalStep, |
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340 | G4double&, |
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341 | G4GPILSelection* selection) |
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342 | { |
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343 | // get Step limit proposed by the process |
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344 | *selection = NotCandidateForSelection; |
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345 | G4double x = currentMinimalStep; |
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346 | DefineMaterial(track.GetMaterialCutsCouple()); |
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347 | G4double ekin = track.GetKineticEnergy(); |
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348 | if(isIon) { ekin *= proton_mass_c2/track.GetDefinition()->GetPDGMass(); } |
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349 | currentModel = static_cast<G4VMscModel*>(SelectModel(ekin)); |
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350 | if(x > 0.0 && ekin > 0.0 && currentModel->IsActive(ekin)) { |
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351 | G4double tPathLength = |
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352 | currentModel->ComputeTruePathLengthLimit(track, theLambdaTable, x); |
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353 | if (tPathLength < x) *selection = CandidateForSelection; |
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354 | x = currentModel->ComputeGeomPathLength(tPathLength); |
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355 | // G4cout << "tPathLength= " << tPathLength |
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356 | // << " stepLimit= " << x |
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357 | // << " currentMinimalStep= " << currentMinimalStep<< G4endl; |
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358 | } |
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359 | return x; |
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360 | } |
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361 | |
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362 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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363 | |
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364 | G4double G4VMultipleScattering::GetContinuousStepLimit( |
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365 | const G4Track& track, |
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366 | G4double previousStepSize, |
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367 | G4double currentMinimalStep, |
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368 | G4double& currentSafety) |
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369 | { |
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370 | G4GPILSelection* selection = 0; |
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371 | return AlongStepGetPhysicalInteractionLength(track,previousStepSize,currentMinimalStep, |
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372 | currentSafety, selection); |
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373 | } |
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374 | |
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375 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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376 | |
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377 | G4double G4VMultipleScattering::GetMeanFreePath( |
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378 | const G4Track&, G4double, G4ForceCondition* condition) |
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379 | { |
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380 | *condition = Forced; |
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381 | return DBL_MAX; |
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382 | } |
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383 | |
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384 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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385 | |
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386 | G4PhysicsVector* G4VMultipleScattering::PhysicsVector(const G4MaterialCutsCouple* couple) |
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387 | { |
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388 | G4int nbins = 3; |
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389 | if( couple->IsUsed() ) nbins = nBins; |
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390 | G4PhysicsVector* v = new G4PhysicsLogVector(minKinEnergy, maxKinEnergy, nbins); |
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391 | v->SetSpline((G4LossTableManager::Instance())->SplineFlag()); |
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392 | return v; |
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393 | } |
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394 | |
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395 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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396 | |
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397 | G4bool G4VMultipleScattering::StorePhysicsTable(const G4ParticleDefinition* part, |
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398 | const G4String& directory, |
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399 | G4bool ascii) |
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400 | { |
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401 | G4bool yes = true; |
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402 | if ( theLambdaTable && part == firstParticle) { |
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403 | const G4String name = GetPhysicsTableFileName(part,directory,"Lambda",ascii); |
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404 | G4bool yes = theLambdaTable->StorePhysicsTable(name,ascii); |
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405 | |
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406 | if ( yes ) { |
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407 | if ( verboseLevel>0 ) { |
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408 | G4cout << "Physics table are stored for " << part->GetParticleName() |
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409 | << " and process " << GetProcessName() |
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410 | << " in the directory <" << directory |
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411 | << "> " << G4endl; |
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412 | } |
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413 | } else { |
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414 | G4cout << "Fail to store Physics Table for " << part->GetParticleName() |
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415 | << " and process " << GetProcessName() |
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416 | << " in the directory <" << directory |
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417 | << "> " << G4endl; |
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418 | } |
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419 | } |
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420 | return yes; |
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421 | } |
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422 | |
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423 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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424 | |
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425 | G4bool |
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426 | G4VMultipleScattering::RetrievePhysicsTable(const G4ParticleDefinition* part, |
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427 | const G4String& directory, |
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428 | G4bool ascii) |
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429 | { |
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430 | if(0 < verboseLevel) { |
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431 | G4cout << "G4VMultipleScattering::RetrievePhysicsTable() for " |
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432 | << part->GetParticleName() << " and process " |
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433 | << GetProcessName() << G4endl; |
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434 | } |
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435 | G4bool yes = true; |
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436 | |
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437 | if(!buildLambdaTable || firstParticle != part) return yes; |
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438 | |
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439 | const G4String particleName = part->GetParticleName(); |
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440 | |
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441 | G4String filename = GetPhysicsTableFileName(part,directory,"Lambda",ascii); |
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442 | yes = |
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443 | G4PhysicsTableHelper::RetrievePhysicsTable(theLambdaTable,filename,ascii); |
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444 | if ( yes ) { |
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445 | if (0 < verboseLevel) { |
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446 | G4cout << "Lambda table for " << part->GetParticleName() |
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447 | << " is retrieved from <" |
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448 | << filename << ">" |
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449 | << G4endl; |
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450 | } |
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451 | if((G4LossTableManager::Instance())->SplineFlag()) { |
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452 | size_t n = theLambdaTable->length(); |
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453 | for(size_t i=0; i<n; ++i) { |
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454 | if((* theLambdaTable)[i]) { |
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455 | (* theLambdaTable)[i]->SetSpline(true); |
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456 | } |
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457 | } |
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458 | } |
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459 | } else { |
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460 | if (1 < verboseLevel) { |
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461 | G4cout << "Lambda table for " << part->GetParticleName() |
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462 | << " in file <" |
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463 | << filename << "> is not exist" |
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464 | << G4endl; |
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465 | } |
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466 | } |
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467 | return yes; |
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468 | } |
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469 | |
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470 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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471 | |
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