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: G4MscModel71.hh,v 1.6 2009/11/01 13:04:12 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 | // |
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32 | // GEANT4 Class header file |
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33 | // |
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34 | // |
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35 | // File name: G4MscMOdel71 |
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36 | // |
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37 | // Author: Laszlo Urban |
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38 | // |
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39 | // Creation date: 01.03.2001 |
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40 | // |
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41 | // Modifications: |
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42 | // |
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43 | // 27-03-03 Move model part from G4MultipleScattering (V.Ivanchenko) |
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44 | // 27-03-03 Rename (V.Ivanchenko) |
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45 | // |
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46 | // 05-08-03 angle distribution has been modified (L.Urban) |
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47 | // 26-11-03 new data member currentRange (L.Urban) |
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48 | // 01-03-04 changes in data members + signature changed in SampleCosineTheta |
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49 | // 11-03-04 changes in data members (L.Urban) |
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50 | // 23-04-04 changes in data members and in signature of SampleCosineTheta |
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51 | // (L.Urban) |
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52 | // 17-08-04 name of data member facxsi changed to factail (L.Urban) |
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53 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
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54 | // 15-04-05 optimize internal interface - add SampleSecondaries method (V.Ivanchenko) |
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55 | // 03-10-05 Model is freezed with the name McsModel71 (V.Ivanchenko) |
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56 | // 17-02-06 Save table of transport cross sections not mfp (V.Ivanchenko) |
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57 | // 07-03-06 Create G4UrbanMscModel and move there step limit calculation (V.Ivanchenko) |
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58 | // |
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59 | |
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60 | // |
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61 | // Class Description: |
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62 | // |
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63 | // Implementation of the model of multiple scattering based on |
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64 | // H.W.Lewis Phys Rev 78 (1950) 526 and L.Urban model |
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65 | |
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66 | // ------------------------------------------------------------------- |
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67 | // |
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68 | |
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69 | #ifndef G4MscModel71_h |
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70 | #define G4MscModel71_h 1 |
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71 | |
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72 | #include "G4VEmModel.hh" |
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73 | |
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74 | class G4ParticleChangeForMSC; |
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75 | class G4Navigator; |
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76 | |
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77 | class G4MscModel71 : public G4VEmModel |
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78 | { |
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79 | |
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80 | public: |
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81 | |
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82 | G4MscModel71(G4double&, G4double&, G4double&, G4double&, G4bool&, |
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83 | const G4String& nam = "UrbanMsc71"); |
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84 | |
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85 | virtual ~G4MscModel71(); |
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86 | |
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87 | virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); |
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88 | |
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89 | virtual G4double ComputeCrossSectionPerAtom( |
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90 | const G4ParticleDefinition* particle, |
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91 | G4double KineticEnergy, |
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92 | G4double AtomicNumber, |
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93 | G4double AtomicWeight=0., |
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94 | G4double cut =0., |
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95 | G4double emax=DBL_MAX); |
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96 | |
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97 | virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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98 | const G4MaterialCutsCouple*, |
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99 | const G4DynamicParticle*, |
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100 | G4double length, |
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101 | G4double safety); |
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102 | |
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103 | G4double GeomPathLength(G4PhysicsTable* theLambdaTable, |
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104 | const G4MaterialCutsCouple* couple, |
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105 | const G4ParticleDefinition* particle, |
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106 | G4double& kineticEnergy, |
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107 | G4double lambda, |
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108 | G4double range, |
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109 | G4double truePathLength); |
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110 | |
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111 | G4double TrueStepLength(G4double geomStepLength); |
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112 | |
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113 | G4double SampleCosineTheta(G4double trueStepLength,G4double KineticEnergy); |
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114 | |
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115 | G4double SampleDisplacement(); |
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116 | |
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117 | void SetLateralDisplasmentFlag(G4bool val); |
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118 | |
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119 | private: |
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120 | |
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121 | // hide assignment operator |
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122 | G4MscModel71 & operator=(const G4MscModel71 &right); |
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123 | G4MscModel71(const G4MscModel71&); |
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124 | |
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125 | const G4ParticleDefinition* particle; |
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126 | G4ParticleChangeForMSC* fParticleChange; |
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127 | G4Navigator* navigator; |
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128 | |
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129 | G4double mass; |
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130 | G4double charge; |
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131 | G4double massRate; |
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132 | |
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133 | G4double taubig; |
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134 | G4double tausmall; |
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135 | G4double taulim; |
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136 | G4double currentTau; |
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137 | G4double dtrl; |
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138 | G4double NuclCorrPar; |
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139 | G4double FactPar; |
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140 | G4double factail ; |
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141 | |
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142 | G4double sigmafactor; |
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143 | G4double b; |
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144 | G4double xsi; |
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145 | |
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146 | G4double lambda0; |
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147 | G4double tPathLength; |
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148 | G4double par1,par2,par3 ; |
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149 | |
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150 | G4double stepmin ; |
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151 | |
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152 | G4double currentKinEnergy; |
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153 | G4double currentRange ; |
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154 | G4double currentRadLength; |
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155 | |
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156 | G4bool samplez; |
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157 | G4bool latDisplasment; |
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158 | G4bool isInitialized; |
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159 | }; |
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160 | |
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161 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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162 | |
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163 | inline void G4MscModel71::SetLateralDisplasmentFlag(G4bool val) |
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164 | { |
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165 | latDisplasment = val; |
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166 | } |
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167 | |
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168 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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169 | |
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170 | #endif |
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171 | |
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