1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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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.hh,v 1.63 2010/03/10 18:29:51 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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28 | // |
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29 | // ------------------------------------------------------------------- |
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30 | // |
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31 | // GEANT4 Class header 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: 12.03.2002 |
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39 | // |
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40 | // Modifications: |
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41 | // |
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42 | // 16-07-03 Update GetRange interface (V.Ivanchenko) |
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43 | // |
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44 | // |
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45 | // Class Description: |
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46 | // |
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47 | // It is the generic process of multiple scattering it includes common |
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48 | // part of calculations for all charged particles |
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49 | // |
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50 | // 26-11-03 bugfix in AlongStepDoIt (L.Urban) |
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51 | // 25-05-04 add protection against case when range is less than steplimit (VI) |
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52 | // 30-06-04 make destructor virtual (V.Ivanchenko) |
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53 | // 27-08-04 Add InitialiseForRun method (V.Ivanchneko) |
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54 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko) |
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55 | // 15-04-05 optimize internal interfaces (V.Ivanchenko) |
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56 | // 15-04-05 remove boundary flag (V.Ivanchenko) |
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57 | // 07-10-05 error in a protection in GetContinuousStepLimit corrected (L.Urban) |
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58 | // 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko) |
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59 | // 26-01-06 Rename GetRange -> GetRangeFromRestricteDEDX (V.Ivanchenko) |
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60 | // 17-02-06 Save table of transport cross sections not mfp (V.Ivanchenko) |
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61 | // 07-03-06 Move step limit calculation to model (V.Ivanchenko) |
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62 | // 13-05-06 Add method to access model by index (V.Ivanchenko) |
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63 | // 12-02-07 Add get/set skin (V.Ivanchenko) |
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64 | // 27-10-07 Virtual functions moved to source (V.Ivanchenko) |
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65 | // 15-07-08 Reorder class members for further multi-thread development (VI) |
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66 | // 07-04-09 Moved msc methods from G4VEmModel to G4VMscModel (VI) |
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67 | // |
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68 | |
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69 | // ------------------------------------------------------------------- |
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70 | // |
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71 | |
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72 | #ifndef G4VMultipleScattering_h |
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73 | #define G4VMultipleScattering_h 1 |
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74 | |
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75 | #include "G4VContinuousDiscreteProcess.hh" |
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76 | #include "globals.hh" |
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77 | #include "G4Material.hh" |
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78 | #include "G4MaterialCutsCouple.hh" |
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79 | #include "G4ParticleChangeForMSC.hh" |
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80 | #include "G4Track.hh" |
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81 | #include "G4Step.hh" |
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82 | #include "G4EmModelManager.hh" |
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83 | #include "G4VMscModel.hh" |
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84 | #include "G4MscStepLimitType.hh" |
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85 | |
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86 | class G4ParticleDefinition; |
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87 | class G4DataVector; |
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88 | class G4PhysicsTable; |
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89 | class G4PhysicsVector; |
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90 | |
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91 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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92 | |
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93 | class G4VMultipleScattering : public G4VContinuousDiscreteProcess |
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94 | { |
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95 | public: |
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96 | |
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97 | G4VMultipleScattering(const G4String& name = "msc", |
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98 | G4ProcessType type = fElectromagnetic); |
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99 | |
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100 | virtual ~G4VMultipleScattering(); |
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101 | |
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102 | //------------------------------------------------------------------------ |
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103 | // Virtual methods to be implemented for the concrete model |
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104 | //------------------------------------------------------------------------ |
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105 | |
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106 | virtual G4bool IsApplicable(const G4ParticleDefinition& p) = 0; |
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107 | |
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108 | virtual void PrintInfo() = 0; |
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109 | |
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110 | protected: |
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111 | |
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112 | virtual void InitialiseProcess(const G4ParticleDefinition*) = 0; |
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113 | |
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114 | public: |
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115 | |
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116 | //------------------------------------------------------------------------ |
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117 | // Generic methods common to all ContinuousDiscrete processes |
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118 | //------------------------------------------------------------------------ |
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119 | |
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120 | // Initialise for build of tables |
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121 | void PreparePhysicsTable(const G4ParticleDefinition&); |
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122 | |
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123 | // Build physics table during initialisation |
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124 | void BuildPhysicsTable(const G4ParticleDefinition&); |
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125 | |
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126 | // Print out of generic class parameters |
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127 | void PrintInfoDefinition(); |
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128 | |
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129 | // Store PhysicsTable in a file. |
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130 | // Return false in case of failure at I/O |
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131 | G4bool StorePhysicsTable(const G4ParticleDefinition*, |
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132 | const G4String& directory, |
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133 | G4bool ascii = false); |
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134 | |
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135 | // Retrieve Physics from a file. |
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136 | // (return true if the Physics Table can be build by using file) |
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137 | // (return false if the process has no functionality or in case of failure) |
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138 | // File name should is constructed as processName+particleName and the |
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139 | // should be placed under the directory specifed by the argument. |
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140 | G4bool RetrievePhysicsTable(const G4ParticleDefinition*, |
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141 | const G4String& directory, |
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142 | G4bool ascii); |
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143 | |
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144 | // The function overloads the corresponding function of the base |
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145 | // class.It limits the step near to boundaries only |
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146 | // and invokes the method GetMscContinuousStepLimit at every step. |
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147 | G4double AlongStepGetPhysicalInteractionLength( |
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148 | const G4Track&, |
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149 | G4double previousStepSize, |
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150 | G4double currentMinimalStep, |
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151 | G4double& currentSafety, |
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152 | G4GPILSelection* selection); |
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153 | |
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154 | // The function overloads the corresponding function of the base |
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155 | // class. |
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156 | G4double PostStepGetPhysicalInteractionLength( |
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157 | const G4Track&, |
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158 | G4double previousStepSize, |
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159 | G4ForceCondition* condition); |
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160 | |
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161 | // Along step actions |
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162 | G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&); |
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163 | |
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164 | // Post step actions |
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165 | G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&); |
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166 | |
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167 | // This method does not used for tracking, it is intended only for tests |
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168 | G4double ContinuousStepLimit(const G4Track& track, |
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169 | G4double previousStepSize, |
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170 | G4double currentMinimalStep, |
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171 | G4double& currentSafety); |
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172 | |
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173 | //------------------------------------------------------------------------ |
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174 | // Specific methods to build and access Physics Tables |
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175 | //------------------------------------------------------------------------ |
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176 | |
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177 | // Build empty Physics Vector |
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178 | G4PhysicsVector* PhysicsVector(const G4MaterialCutsCouple*); |
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179 | |
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180 | inline void SetBinning(G4int nbins); |
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181 | inline G4int Binning() const; |
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182 | |
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183 | inline void SetMinKinEnergy(G4double e); |
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184 | inline G4double MinKinEnergy() const; |
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185 | |
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186 | inline void SetMaxKinEnergy(G4double e); |
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187 | inline G4double MaxKinEnergy() const; |
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188 | |
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189 | inline void SetBuildLambdaTable(G4bool val); |
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190 | |
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191 | inline G4PhysicsTable* LambdaTable() const; |
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192 | |
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193 | // access particle type |
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194 | inline const G4ParticleDefinition* Particle() const; |
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195 | |
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196 | //------------------------------------------------------------------------ |
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197 | // Specific methods to set, access, modify models |
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198 | //------------------------------------------------------------------------ |
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199 | |
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200 | protected: |
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201 | // Select model in run time |
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202 | inline G4VEmModel* SelectModel(G4double kinEnergy); |
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203 | |
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204 | public: |
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205 | // Select model in run time |
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206 | inline G4VEmModel* SelectModelForMaterial(G4double kinEnergy, |
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207 | size_t& idxRegion) const; |
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208 | |
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209 | // Add model for region, smaller value of order defines which |
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210 | // model will be selected for a given energy interval |
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211 | void AddEmModel(G4int order, G4VEmModel*, const G4Region* region = 0); |
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212 | |
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213 | // Assign a model to a process |
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214 | void SetModel(G4VMscModel*, G4int index = 1); |
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215 | |
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216 | // return the assigned model |
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217 | G4VMscModel* Model(G4int index = 1); |
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218 | |
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219 | // Access to models by index |
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220 | G4VEmModel* GetModelByIndex(G4int idx = 0, G4bool ver = false) const; |
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221 | |
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222 | //------------------------------------------------------------------------ |
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223 | // Get/Set parameters for simulation of multiple scattering |
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224 | //------------------------------------------------------------------------ |
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225 | |
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226 | inline G4bool LateralDisplasmentFlag() const; |
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227 | inline void SetLateralDisplasmentFlag(G4bool val); |
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228 | |
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229 | inline G4double Skin() const; |
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230 | inline void SetSkin(G4double val); |
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231 | |
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232 | inline G4double RangeFactor() const; |
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233 | inline void SetRangeFactor(G4double val); |
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234 | |
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235 | inline G4double GeomFactor() const; |
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236 | inline void SetGeomFactor(G4double val); |
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237 | |
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238 | inline G4double PolarAngleLimit() const; |
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239 | inline void SetPolarAngleLimit(G4double val); |
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240 | |
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241 | inline G4MscStepLimitType StepLimitType() const; |
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242 | inline void SetStepLimitType(G4MscStepLimitType val); |
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243 | |
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244 | //------------------------------------------------------------------------ |
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245 | // Run time methods |
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246 | //------------------------------------------------------------------------ |
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247 | |
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248 | protected: |
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249 | |
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250 | // This method is not used for tracking, it returns mean free path value |
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251 | G4double GetMeanFreePath(const G4Track& track, |
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252 | G4double, |
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253 | G4ForceCondition* condition); |
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254 | |
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255 | // This method is not used for tracking, it returns step limit |
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256 | G4double GetContinuousStepLimit(const G4Track& track, |
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257 | G4double previousStepSize, |
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258 | G4double currentMinimalStep, |
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259 | G4double& currentSafety); |
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260 | |
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261 | // This method returns inversed transport cross section |
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262 | inline G4double GetLambda(const G4ParticleDefinition* p, |
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263 | G4double& kineticEnergy); |
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264 | |
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265 | // defines current material in run time |
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266 | inline void DefineMaterial(const G4MaterialCutsCouple* couple); |
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267 | |
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268 | inline const G4MaterialCutsCouple* CurrentMaterialCutsCouple() const; |
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269 | |
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270 | private: |
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271 | |
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272 | // hide assignment operator |
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273 | G4VMultipleScattering(G4VMultipleScattering &); |
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274 | G4VMultipleScattering & operator=(const G4VMultipleScattering &right); |
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275 | |
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276 | // ======== Parameters of the class fixed at construction ========= |
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277 | |
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278 | G4EmModelManager* modelManager; |
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279 | G4bool buildLambdaTable; |
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280 | |
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281 | // ======== Parameters of the class fixed at initialisation ======= |
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282 | |
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283 | std::vector<G4VMscModel*> mscModels; |
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284 | |
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285 | G4PhysicsTable* theLambdaTable; |
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286 | const G4ParticleDefinition* firstParticle; |
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287 | |
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288 | G4MscStepLimitType stepLimit; |
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289 | |
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290 | G4double minKinEnergy; |
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291 | G4double maxKinEnergy; |
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292 | G4double skin; |
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293 | G4double facrange; |
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294 | G4double facgeom; |
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295 | G4double polarAngleLimit; |
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296 | |
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297 | G4int nBins; |
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298 | |
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299 | G4bool latDisplasment; |
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300 | G4bool isIon; |
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301 | |
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302 | // ======== Cashed values - may be state dependent ================ |
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303 | |
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304 | protected: |
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305 | |
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306 | G4GPILSelection valueGPILSelectionMSC; |
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307 | G4ParticleChangeForMSC fParticleChange; |
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308 | |
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309 | private: |
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310 | |
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311 | G4VMscModel* currentModel; |
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312 | |
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313 | // cache |
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314 | const G4ParticleDefinition* currentParticle; |
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315 | const G4MaterialCutsCouple* currentCouple; |
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316 | size_t currentMaterialIndex; |
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317 | |
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318 | }; |
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319 | |
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320 | // ======== Run time inline methods ================ |
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321 | |
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322 | inline const G4MaterialCutsCouple* |
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323 | G4VMultipleScattering::CurrentMaterialCutsCouple() const |
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324 | { |
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325 | return currentCouple; |
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326 | } |
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327 | |
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328 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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329 | |
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330 | inline |
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331 | void G4VMultipleScattering::DefineMaterial(const G4MaterialCutsCouple* couple) |
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332 | { |
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333 | if(couple != currentCouple) { |
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334 | currentCouple = couple; |
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335 | currentMaterialIndex = couple->GetIndex(); |
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336 | } |
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337 | } |
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338 | |
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339 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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340 | |
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341 | inline |
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342 | G4double G4VMultipleScattering::GetLambda(const G4ParticleDefinition* p, |
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343 | G4double& e) |
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344 | { |
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345 | G4double x; |
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346 | if(theLambdaTable) { |
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347 | x = ((*theLambdaTable)[currentMaterialIndex])->Value(e); |
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348 | } else { |
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349 | x = currentModel->CrossSection(currentCouple,p,e); |
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350 | } |
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351 | if(x > DBL_MIN) { x = 1./x; } |
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352 | else { x = DBL_MAX; } |
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353 | return x; |
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354 | } |
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355 | |
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356 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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357 | |
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358 | inline G4VEmModel* G4VMultipleScattering::SelectModel(G4double kinEnergy) |
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359 | { |
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360 | return modelManager->SelectModel(kinEnergy, currentMaterialIndex); |
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361 | } |
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362 | |
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363 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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364 | |
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365 | inline G4VEmModel* G4VMultipleScattering::SelectModelForMaterial( |
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366 | G4double kinEnergy, size_t& idxRegion) const |
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367 | { |
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368 | return modelManager->SelectModel(kinEnergy, idxRegion); |
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369 | } |
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370 | |
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371 | // ======== Get/Set inline methods used at initialisation ================ |
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372 | |
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373 | inline void G4VMultipleScattering::SetBinning(G4int nbins) |
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374 | { |
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375 | nBins = nbins; |
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376 | } |
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377 | |
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378 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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379 | |
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380 | inline G4int G4VMultipleScattering::Binning() const |
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381 | { |
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382 | return nBins; |
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383 | } |
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384 | |
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385 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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386 | |
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387 | inline void G4VMultipleScattering::SetMinKinEnergy(G4double e) |
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388 | { |
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389 | minKinEnergy = e; |
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390 | } |
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391 | |
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392 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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393 | |
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394 | inline G4double G4VMultipleScattering::MinKinEnergy() const |
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395 | { |
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396 | return minKinEnergy; |
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397 | } |
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398 | |
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399 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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400 | |
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401 | inline void G4VMultipleScattering::SetMaxKinEnergy(G4double e) |
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402 | { |
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403 | maxKinEnergy = e; |
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404 | } |
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405 | |
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406 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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407 | |
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408 | inline G4double G4VMultipleScattering::MaxKinEnergy() const |
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409 | { |
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410 | return maxKinEnergy; |
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411 | } |
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412 | |
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413 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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414 | |
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415 | inline void G4VMultipleScattering::SetBuildLambdaTable(G4bool val) |
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416 | { |
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417 | buildLambdaTable = val; |
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418 | } |
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419 | |
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420 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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421 | |
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422 | inline G4PhysicsTable* G4VMultipleScattering::LambdaTable() const |
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423 | { |
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424 | return theLambdaTable; |
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425 | } |
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426 | |
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427 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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428 | |
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429 | inline const G4ParticleDefinition* G4VMultipleScattering::Particle() const |
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430 | { |
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431 | return currentParticle; |
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432 | } |
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433 | |
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434 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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435 | |
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436 | inline G4bool G4VMultipleScattering::LateralDisplasmentFlag() const |
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437 | { |
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438 | return latDisplasment; |
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439 | } |
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440 | |
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441 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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442 | |
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443 | inline void G4VMultipleScattering::SetLateralDisplasmentFlag(G4bool val) |
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444 | { |
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445 | latDisplasment = val; |
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446 | } |
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447 | |
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448 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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449 | |
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450 | inline G4double G4VMultipleScattering::Skin() const |
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451 | { |
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452 | return skin; |
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453 | } |
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454 | |
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455 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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456 | |
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457 | inline void G4VMultipleScattering::SetSkin(G4double val) |
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458 | { |
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459 | if(val < 1.0) { skin = 0.0; } |
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460 | else { skin = val; } |
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461 | } |
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462 | |
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463 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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464 | |
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465 | inline G4double G4VMultipleScattering::RangeFactor() const |
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466 | { |
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467 | return facrange; |
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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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472 | inline void G4VMultipleScattering::SetRangeFactor(G4double val) |
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473 | { |
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474 | if(val > 0.0) facrange = val; |
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475 | } |
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476 | |
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477 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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478 | |
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479 | inline G4double G4VMultipleScattering::GeomFactor() const |
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480 | { |
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481 | return facgeom; |
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482 | } |
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483 | |
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484 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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485 | |
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486 | inline void G4VMultipleScattering::SetGeomFactor(G4double val) |
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487 | { |
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488 | if(val > 0.0) facgeom = val; |
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489 | } |
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490 | |
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491 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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492 | |
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493 | inline G4double G4VMultipleScattering::PolarAngleLimit() const |
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494 | { |
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495 | return polarAngleLimit; |
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496 | } |
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497 | |
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498 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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499 | |
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500 | inline void G4VMultipleScattering::SetPolarAngleLimit(G4double val) |
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501 | { |
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502 | if(val < 0.0) { polarAngleLimit = 0.0; } |
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503 | else if(val > CLHEP::pi) { polarAngleLimit = CLHEP::pi; } |
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504 | else { polarAngleLimit = val; } |
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505 | } |
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506 | |
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507 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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508 | |
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509 | inline G4MscStepLimitType G4VMultipleScattering::StepLimitType() const |
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510 | { |
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511 | return stepLimit; |
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512 | } |
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513 | |
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514 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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515 | |
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516 | inline void G4VMultipleScattering::SetStepLimitType(G4MscStepLimitType val) |
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517 | { |
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518 | stepLimit = val; |
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519 | if(val == fMinimal) { facrange = 0.2; } |
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520 | } |
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521 | |
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522 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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523 | |
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524 | #endif |
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