1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4ParticleChangeForGamma.hh,v 1.9 2008/01/11 19:57:12 vnivanch Exp $ |
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28 | // GEANT4 tag $Name: HEAD $ |
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29 | // |
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30 | // |
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31 | // ------------------------------------------------------------ |
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32 | // GEANT 4 class header file |
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33 | // |
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34 | // |
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35 | // ------------------------------------------------------------ |
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36 | // 15 April 2005 V.Ivanchenko for gamma EM processes |
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37 | // |
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38 | // Modified: |
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39 | // 30.05.05 : add UpdateStepForAtRest (V.Ivanchenko) |
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40 | // 04.12.05 : apply UpdateStepForPostStep in any case (mma) |
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41 | // 26.08.06 : Add->Set polarization; |
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42 | // add const method to access track; |
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43 | // add weight modification (V.Ivanchenko) |
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44 | // |
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45 | // ------------------------------------------------------------ |
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46 | // |
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47 | // Class Description |
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48 | // This class is a concrete class for ParticleChange for gamma processes |
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49 | // |
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50 | #ifndef G4ParticleChangeForGamma_h |
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51 | #define G4ParticleChangeForGamma_h 1 |
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52 | |
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53 | #include "globals.hh" |
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54 | #include "G4ios.hh" |
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55 | #include "G4VParticleChange.hh" |
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56 | |
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57 | class G4DynamicParticle; |
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58 | |
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59 | class G4ParticleChangeForGamma: public G4VParticleChange |
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60 | { |
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61 | public: |
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62 | // default constructor |
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63 | G4ParticleChangeForGamma(); |
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64 | |
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65 | // destructor |
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66 | virtual ~G4ParticleChangeForGamma(); |
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67 | |
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68 | // with description |
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69 | // ---------------------------------------------------- |
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70 | // --- the following methods are for updating G4Step ----- |
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71 | |
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72 | G4Step* UpdateStepForAtRest(G4Step* pStep); |
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73 | G4Step* UpdateStepForPostStep(G4Step* Step); |
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74 | // A physics process gives the final state of the particle |
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75 | // based on information of G4Track |
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76 | |
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77 | void InitializeForPostStep(const G4Track&); |
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78 | //Initialize all propoerties by using G4Track information |
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79 | |
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80 | void AddSecondary(G4DynamicParticle* aParticle); |
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81 | // Add next secondary |
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82 | |
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83 | G4double GetProposedKineticEnergy() const; |
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84 | void SetProposedKineticEnergy(G4double proposedKinEnergy); |
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85 | // Get/Set the final kinetic energy of the current particle. |
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86 | |
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87 | const G4ThreeVector& GetProposedMomentumDirection() const; |
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88 | void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz); |
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89 | void ProposeMomentumDirection(const G4ThreeVector& Pfinal); |
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90 | // Get/Propose the MomentumDirection vector: it is the final momentum direction. |
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91 | |
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92 | const G4ThreeVector& GetProposedPolarization() const; |
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93 | void ProposePolarization(const G4ThreeVector& dir); |
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94 | void ProposePolarization(G4double Px, G4double Py, G4double Pz); |
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95 | |
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96 | const G4Track* GetCurrentTrack() const; |
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97 | |
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98 | virtual void DumpInfo() const; |
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99 | |
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100 | // for Debug |
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101 | virtual G4bool CheckIt(const G4Track&); |
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102 | |
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103 | protected: |
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104 | // hide copy constructor and assignment operaor as protected |
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105 | G4ParticleChangeForGamma(const G4ParticleChangeForGamma &right); |
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106 | G4ParticleChangeForGamma & operator=(const G4ParticleChangeForGamma &right); |
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107 | |
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108 | private: |
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109 | |
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110 | const G4Track* currentTrack; |
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111 | // The pointer to G4Track |
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112 | |
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113 | G4double proposedKinEnergy; |
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114 | // The final kinetic energy of the current particle. |
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115 | |
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116 | G4ThreeVector proposedMomentumDirection; |
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117 | // The final momentum direction of the current particle. |
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118 | |
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119 | G4ThreeVector proposedPolarization; |
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120 | // The final polarization of the current particle. |
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121 | }; |
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122 | |
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123 | // ------------------------------------------------------------ |
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124 | |
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125 | inline G4double G4ParticleChangeForGamma::GetProposedKineticEnergy() const |
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126 | { |
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127 | return proposedKinEnergy; |
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128 | } |
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129 | |
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130 | inline void G4ParticleChangeForGamma::SetProposedKineticEnergy(G4double energy) |
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131 | { |
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132 | proposedKinEnergy = energy; |
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133 | } |
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134 | |
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135 | inline |
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136 | const G4ThreeVector& G4ParticleChangeForGamma::GetProposedMomentumDirection() const |
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137 | { |
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138 | return proposedMomentumDirection; |
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139 | } |
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140 | |
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141 | inline |
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142 | void G4ParticleChangeForGamma::ProposeMomentumDirection(const G4ThreeVector& dir) |
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143 | { |
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144 | proposedMomentumDirection = dir; |
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145 | } |
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146 | |
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147 | inline |
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148 | void G4ParticleChangeForGamma::ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz) |
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149 | { |
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150 | proposedMomentumDirection.setX(Px); |
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151 | proposedMomentumDirection.setY(Py); |
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152 | proposedMomentumDirection.setZ(Pz); |
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153 | } |
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154 | |
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155 | inline const G4Track* G4ParticleChangeForGamma::GetCurrentTrack() const |
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156 | { |
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157 | return currentTrack; |
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158 | } |
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159 | |
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160 | inline |
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161 | const G4ThreeVector& G4ParticleChangeForGamma::GetProposedPolarization() const |
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162 | { |
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163 | return proposedPolarization; |
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164 | } |
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165 | |
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166 | inline |
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167 | void G4ParticleChangeForGamma::ProposePolarization(const G4ThreeVector& dir) |
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168 | { |
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169 | proposedPolarization = dir; |
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170 | } |
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171 | |
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172 | inline |
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173 | void G4ParticleChangeForGamma::ProposePolarization(G4double Px, G4double Py, G4double Pz) |
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174 | { |
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175 | proposedPolarization.setX(Px); |
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176 | proposedPolarization.setY(Py); |
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177 | proposedPolarization.setZ(Pz); |
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178 | } |
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179 | |
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180 | inline void G4ParticleChangeForGamma::InitializeForPostStep(const G4Track& track) |
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181 | { |
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182 | theStatusChange = track.GetTrackStatus(); |
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183 | theLocalEnergyDeposit = 0.0; |
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184 | theNonIonizingEnergyDeposit = 0.0; |
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185 | InitializeSecondaries(track); |
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186 | theParentWeight = track.GetWeight(); |
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187 | proposedKinEnergy = track.GetKineticEnergy(); |
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188 | proposedMomentumDirection = track.GetMomentumDirection(); |
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189 | proposedPolarization = track.GetPolarization(); |
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190 | currentTrack = &track; |
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191 | } |
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192 | |
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193 | //---------------------------------------------------------------- |
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194 | // method for updating G4Step |
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195 | // |
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196 | |
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197 | inline G4Step* G4ParticleChangeForGamma::UpdateStepForAtRest(G4Step* pStep) |
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198 | { |
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199 | pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); |
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200 | pStep->SetStepLength( 0.0 ); |
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201 | if (!fSetParentWeightByProcess) |
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202 | pStep->GetPostStepPoint()->SetWeight( theParentWeight ); |
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203 | return pStep; |
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204 | } |
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205 | |
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206 | inline G4Step* G4ParticleChangeForGamma::UpdateStepForPostStep(G4Step* pStep) |
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207 | { |
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208 | G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); |
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209 | pPostStepPoint->SetKineticEnergy( proposedKinEnergy ); |
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210 | pPostStepPoint->SetMomentumDirection( proposedMomentumDirection ); |
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211 | pPostStepPoint->SetPolarization( proposedPolarization ); |
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212 | |
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213 | // update weight |
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214 | // this feature is commented out, it should be overwritten in case |
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215 | // if energy loss processes will use biasing |
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216 | if (!fSetParentWeightByProcess) |
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217 | pPostStepPoint->SetWeight( theParentWeight ); |
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218 | |
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219 | pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); |
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220 | pStep->AddNonIonizingEnergyDeposit( theNonIonizingEnergyDeposit ); |
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221 | return pStep; |
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222 | } |
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223 | |
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224 | inline void G4ParticleChangeForGamma::AddSecondary(G4DynamicParticle* aParticle) |
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225 | { |
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226 | // create track |
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227 | G4Track* aTrack = new G4Track(aParticle, currentTrack->GetGlobalTime(), |
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228 | currentTrack->GetPosition()); |
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229 | |
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230 | // Touchable handle is copied to keep the pointer |
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231 | aTrack->SetTouchableHandle(currentTrack->GetTouchableHandle()); |
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232 | |
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233 | // add a secondary |
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234 | G4VParticleChange::AddSecondary(aTrack); |
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235 | } |
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236 | |
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237 | #endif |
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238 | |
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