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 | // HadrontherapyPrimarygeneratorAction.cc; |
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27 | // See more at: http://g4advancedexamples.lngs.infn.it/Examples/hadrontherapy |
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28 | // ---------------------------------------------------------------------------- |
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29 | // GEANT 4 - Hadrontherapy example |
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30 | // ---------------------------------------------------------------------------- |
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31 | // Code developed by: |
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32 | // |
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33 | // G.A.P. Cirrone(a)*, F.Romano(a) |
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34 | // |
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35 | // (a) Laboratori Nazionali del Sud |
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36 | // of the INFN, Catania, Italy |
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37 | // |
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38 | // * cirrone@lns.infn.it |
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39 | // |
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40 | // ------------------------------------------------------------------------------ |
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41 | |
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42 | #include "HadrontherapyPrimaryGeneratorAction.hh" |
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43 | #include "HadrontherapyPrimaryGeneratorMessenger.hh" |
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44 | #include "G4Event.hh" |
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45 | #include "G4ParticleGun.hh" |
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46 | #include "G4ParticleTable.hh" |
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47 | #include "G4ParticleDefinition.hh" |
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48 | #include "Randomize.hh" |
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49 | #include "HadrontherapyAnalysisManager.hh" |
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50 | |
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51 | HadrontherapyPrimaryGeneratorAction::HadrontherapyPrimaryGeneratorAction() |
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52 | { |
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53 | // Define the messenger |
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54 | gunMessenger = new HadrontherapyPrimaryGeneratorMessenger(this); |
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55 | |
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56 | particleGun = new G4ParticleGun(); |
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57 | |
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58 | SetDefaultPrimaryParticle(); |
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59 | } |
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60 | |
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61 | HadrontherapyPrimaryGeneratorAction::~HadrontherapyPrimaryGeneratorAction() |
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62 | { |
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63 | delete particleGun; |
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64 | |
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65 | delete gunMessenger; |
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66 | } |
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67 | |
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68 | void HadrontherapyPrimaryGeneratorAction::SetDefaultPrimaryParticle() |
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69 | { |
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70 | // **************************** |
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71 | // Default primary particle |
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72 | // **************************** |
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73 | |
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74 | // Define primary particles: protons |
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75 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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76 | G4ParticleDefinition* particle = particleTable -> FindParticle("proton"); |
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77 | particleGun -> SetParticleDefinition(particle); |
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78 | |
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79 | // Define the energy of primary particles: |
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80 | // gaussian distribution with mean energy = 62.0 *MeV |
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81 | // and sigma = 400.0 *keV |
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82 | G4double defaultMeanKineticEnergy = 62.0 *MeV; |
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83 | meanKineticEnergy = defaultMeanKineticEnergy; |
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84 | |
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85 | G4double defaultsigmaEnergy = 400.0 *keV; |
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86 | sigmaEnergy = defaultsigmaEnergy; |
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87 | |
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88 | #ifdef G4ANALYSIS_USE_ROOT |
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89 | // Write these values into the analysis if needed. Have to be written separately on change. |
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90 | HadrontherapyAnalysisManager::GetInstance()->setBeamMetaData(meanKineticEnergy, sigmaEnergy); |
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91 | #endif |
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92 | |
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93 | // Define the parameters of the initial position: |
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94 | // the y, z coordinates have a gaussian distribution |
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95 | |
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96 | G4double defaultX0 = -2700.0 *mm; |
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97 | X0 = defaultX0; |
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98 | |
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99 | G4double defaultY0 = 0.0 *mm; |
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100 | Y0 = defaultY0; |
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101 | |
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102 | G4double defaultZ0 = 0.0 *mm; |
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103 | Z0 = defaultZ0; |
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104 | |
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105 | G4double defaultsigmaY = 1. *mm; |
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106 | sigmaY = defaultsigmaY; |
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107 | |
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108 | G4double defaultsigmaZ = 1. *mm; |
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109 | sigmaZ = defaultsigmaZ; |
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110 | |
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111 | // Define the parameters of the momentum of primary particles: |
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112 | // The momentum along the y and z axis has a gaussian distribution |
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113 | G4double defaultsigmaMomentumY = 0.0; |
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114 | sigmaMomentumY = defaultsigmaMomentumY; |
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115 | |
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116 | G4double defaultsigmaMomentumZ = 0.0; |
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117 | sigmaMomentumZ = defaultsigmaMomentumZ; |
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118 | } |
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119 | |
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120 | void HadrontherapyPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
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121 | { |
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122 | #ifdef G4ANALYSIS_USE_ROOT |
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123 | // Increment the event counter |
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124 | HadrontherapyAnalysisManager::GetInstance()->startNewEvent(); |
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125 | #endif |
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126 | |
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127 | // **************************************** |
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128 | // Set the beam angular apread |
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129 | // and spot size |
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130 | // beam spot size |
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131 | // **************************************** |
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132 | |
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133 | // Set the position of the primary particles |
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134 | G4double x = X0; |
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135 | G4double y = Y0; |
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136 | G4double z = Z0; |
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137 | |
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138 | if ( sigmaY > 0.0 ) |
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139 | { |
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140 | y += G4RandGauss::shoot( Y0, sigmaY ); |
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141 | } |
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142 | |
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143 | if ( sigmaZ > 0.0 ) |
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144 | { |
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145 | z += G4RandGauss::shoot( Z0, sigmaZ ); |
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146 | } |
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147 | |
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148 | particleGun -> SetParticlePosition(G4ThreeVector( x , y , z ) ); |
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149 | |
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150 | // ******************************************** |
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151 | // Set the beam energy and energy spread |
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152 | // ******************************************** |
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153 | |
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154 | G4double kineticEnergy = G4RandGauss::shoot( meanKineticEnergy, sigmaEnergy ); |
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155 | particleGun -> SetParticleEnergy ( kineticEnergy ); |
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156 | |
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157 | // Set the direction of the primary particles |
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158 | G4double momentumX = 1.0; |
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159 | G4double momentumY = 0.0; |
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160 | G4double momentumZ = 0.0; |
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161 | |
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162 | if ( sigmaMomentumY > 0.0 ) |
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163 | { |
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164 | momentumY += G4RandGauss::shoot( 0., sigmaMomentumY ); |
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165 | } |
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166 | if ( sigmaMomentumZ > 0.0 ) |
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167 | { |
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168 | momentumZ += G4RandGauss::shoot( 0., sigmaMomentumZ ); |
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169 | } |
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170 | |
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171 | particleGun -> SetParticleMomentumDirection( G4ThreeVector(momentumX,momentumY,momentumZ) ); |
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172 | |
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173 | // Generate a primary particle |
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174 | particleGun -> GeneratePrimaryVertex( anEvent ); |
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175 | } |
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176 | |
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177 | void HadrontherapyPrimaryGeneratorAction::SetmeanKineticEnergy (G4double val ) |
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178 | { |
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179 | meanKineticEnergy = val; |
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180 | #ifdef G4ANALYSIS_USE_ROOT |
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181 | // Update the beam-data in the analysis manager |
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182 | HadrontherapyAnalysisManager::GetInstance()->setBeamMetaData(meanKineticEnergy, sigmaEnergy); |
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183 | #endif |
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184 | |
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185 | } |
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186 | |
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187 | void HadrontherapyPrimaryGeneratorAction::SetsigmaEnergy (G4double val ) |
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188 | { |
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189 | sigmaEnergy = val; |
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190 | #ifdef G4ANALYSIS_USE_ROOT |
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191 | // Update the sigmaenergy in the metadata. |
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192 | HadrontherapyAnalysisManager::GetInstance()->setBeamMetaData(meanKineticEnergy, sigmaEnergy); |
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193 | #endif |
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194 | } |
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195 | |
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196 | void HadrontherapyPrimaryGeneratorAction::SetXposition (G4double val ) |
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197 | { X0 = val;} |
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198 | |
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199 | void HadrontherapyPrimaryGeneratorAction::SetYposition (G4double val ) |
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200 | { Y0 = val;} |
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201 | |
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202 | void HadrontherapyPrimaryGeneratorAction::SetZposition (G4double val ) |
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203 | { Z0 = val;} |
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204 | |
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205 | void HadrontherapyPrimaryGeneratorAction::SetsigmaY (G4double val ) |
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206 | { sigmaY = val;} |
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207 | |
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208 | void HadrontherapyPrimaryGeneratorAction::SetsigmaZ (G4double val ) |
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209 | { sigmaZ = val;} |
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210 | |
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211 | void HadrontherapyPrimaryGeneratorAction::SetsigmaMomentumY (G4double val ) |
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212 | { sigmaMomentumY = val;} |
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213 | |
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214 | void HadrontherapyPrimaryGeneratorAction::SetsigmaMomentumZ (G4double val ) |
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215 | { sigmaMomentumZ = val;} |
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216 | |
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217 | G4double HadrontherapyPrimaryGeneratorAction::GetmeanKineticEnergy(void) |
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218 | { return meanKineticEnergy;} |
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219 | |
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