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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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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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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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: G4VMscModel.hh,v 1.9 2009/04/07 18:39:47 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 header file |
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32 | // |
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33 | // |
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34 | // File name: G4VMscModel |
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35 | // |
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36 | // Author: Vladimir Ivanchenko |
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37 | // |
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38 | // Creation date: 07.03.2008 |
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39 | // |
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40 | // Modifications: |
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41 | // 07.04.2009 V.Ivanchenko moved msc methods from G4VEmModel to G4VMscModel |
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42 | // |
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43 | // Class Description: |
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44 | // |
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45 | // General interface to msc models |
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46 | |
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47 | // ------------------------------------------------------------------- |
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48 | // |
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49 | |
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50 | #ifndef G4VMscModel_h |
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51 | #define G4VMscModel_h 1 |
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52 | |
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53 | #include "G4VEmModel.hh" |
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54 | #include "G4MscStepLimitType.hh" |
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55 | #include "globals.hh" |
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56 | #include "G4ThreeVector.hh" |
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57 | #include "G4Track.hh" |
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58 | #include "G4SafetyHelper.hh" |
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59 | |
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60 | class G4ParticleChangeForMSC; |
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61 | |
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62 | class G4VMscModel : public G4VEmModel |
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63 | { |
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64 | |
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65 | public: |
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66 | |
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67 | G4VMscModel(const G4String& nam); |
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68 | |
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69 | virtual ~G4VMscModel(); |
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70 | |
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71 | virtual G4double ComputeTruePathLengthLimit(const G4Track& track, |
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72 | G4PhysicsTable* theLambdaTable, |
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73 | G4double currentMinimalStep); |
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74 | |
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75 | virtual G4double ComputeGeomPathLength(G4double truePathLength); |
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76 | |
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77 | virtual G4double ComputeTrueStepLength(G4double geomPathLength); |
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78 | |
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79 | virtual void SampleScattering(const G4DynamicParticle*, |
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80 | G4double safety); |
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81 | |
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82 | // empty |
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83 | virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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84 | const G4MaterialCutsCouple*, |
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85 | const G4DynamicParticle*, |
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86 | G4double tmin, |
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87 | G4double tmax); |
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88 | |
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89 | //================================================================ |
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90 | // Set parameters of multiple scattering models |
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91 | //================================================================ |
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92 | |
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93 | inline void SetStepLimitType(G4MscStepLimitType); |
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94 | |
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95 | inline void SetLateralDisplasmentFlag(G4bool val); |
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96 | |
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97 | inline void SetRangeFactor(G4double); |
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98 | |
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99 | inline void SetGeomFactor(G4double); |
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100 | |
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101 | inline void SetSkin(G4double); |
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102 | |
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103 | inline void SetSampleZ(G4bool); |
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104 | |
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105 | protected: |
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106 | |
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107 | // initialisation of the ParticleChange for the model |
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108 | G4ParticleChangeForMSC* GetParticleChangeForMSC(); |
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109 | |
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110 | // initialisation of interface with geometry |
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111 | void InitialiseSafetyHelper(); |
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112 | |
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113 | // shift point of the track PostStep |
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114 | void ComputeDisplacement(G4ParticleChangeForMSC*, |
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115 | const G4ThreeVector& displDir, |
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116 | G4double displacement, |
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117 | G4double postsafety); |
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118 | |
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119 | // compute safety |
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120 | inline G4double ComputeSafety(const G4ThreeVector& position, G4double limit); |
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121 | |
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122 | // compute linear distance to a geometry boundary |
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123 | inline G4double ComputeGeomLimit(const G4Track& position, G4double& presafety, |
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124 | G4double limit); |
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125 | |
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126 | private: |
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127 | |
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128 | // hide assignment operator |
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129 | G4VMscModel & operator=(const G4VMscModel &right); |
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130 | G4VMscModel(const G4VMscModel&); |
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131 | |
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132 | G4SafetyHelper* safetyHelper; |
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133 | |
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134 | protected: |
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135 | |
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136 | G4double facrange; |
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137 | G4double facgeom; |
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138 | G4double facsafety; |
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139 | G4double skin; |
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140 | G4double dtrl; |
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141 | G4double lambdalimit; |
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142 | G4double geommax; |
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143 | |
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144 | G4MscStepLimitType steppingAlgorithm; |
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145 | |
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146 | G4bool samplez; |
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147 | G4bool latDisplasment; |
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148 | |
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149 | }; |
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150 | |
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151 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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152 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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153 | |
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154 | inline void G4VMscModel::SetLateralDisplasmentFlag(G4bool val) |
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155 | { |
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156 | latDisplasment = val; |
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157 | } |
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158 | |
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159 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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160 | |
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161 | inline void G4VMscModel::SetSkin(G4double val) |
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162 | { |
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163 | skin = val; |
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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 | inline void G4VMscModel::SetRangeFactor(G4double val) |
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169 | { |
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170 | facrange = val; |
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171 | } |
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172 | |
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173 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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174 | |
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175 | inline void G4VMscModel::SetGeomFactor(G4double val) |
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176 | { |
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177 | facgeom = val; |
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178 | } |
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179 | |
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180 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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181 | |
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182 | inline void G4VMscModel::SetStepLimitType(G4MscStepLimitType val) |
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183 | { |
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184 | steppingAlgorithm = val; |
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185 | } |
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186 | |
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187 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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188 | |
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189 | inline void G4VMscModel::SetSampleZ(G4bool val) |
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190 | { |
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191 | samplez = val; |
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192 | } |
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193 | |
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194 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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195 | |
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196 | inline G4double G4VMscModel::ComputeSafety(const G4ThreeVector& position, |
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197 | G4double) |
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198 | { |
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199 | return safetyHelper->ComputeSafety(position); |
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200 | } |
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201 | |
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202 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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203 | |
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204 | inline G4double G4VMscModel::ComputeGeomLimit(const G4Track& track, |
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205 | G4double& presafety, |
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206 | G4double limit) |
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207 | { |
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208 | G4double res = geommax; |
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209 | if(track.GetVolume() != safetyHelper->GetWorldVolume()) { |
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210 | res = safetyHelper->CheckNextStep( |
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211 | track.GetStep()->GetPreStepPoint()->GetPosition(), |
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212 | track.GetMomentumDirection(), |
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213 | limit, presafety); |
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214 | } |
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215 | return res; |
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216 | } |
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217 | |
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218 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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219 | |
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220 | #endif |
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221 | |
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