1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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9 | // * include a list of copyright holders. * |
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11 | // * Neither the authors of this software system, nor their employing * |
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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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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: XrayFluoPrimaryGeneratorAction.cc |
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28 | // GEANT4 tag $Name: xray_fluo-V03-02-00 |
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29 | // |
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30 | // Author: Elena Guardincerri (Elena.Guardincerri@ge.infn.it) |
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31 | // |
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32 | // History: |
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33 | // ----------- |
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34 | // 28 Nov 2001 Elena Guardincerri Created |
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35 | // |
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36 | // ------------------------------------------------------------------- |
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37 | |
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38 | #include "XrayFluoPrimaryGeneratorAction.hh" |
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39 | //#include "G4DataVector.hh" |
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40 | #include "XrayFluoDetectorConstruction.hh" |
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41 | #include "XrayFluoPrimaryGeneratorMessenger.hh" |
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42 | #include "XrayFluoRunAction.hh" |
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43 | #include "G4Event.hh" |
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44 | #include "G4ParticleGun.hh" |
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45 | #include "G4ParticleTable.hh" |
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46 | #include "G4ParticleDefinition.hh" |
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47 | #include "Randomize.hh" |
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48 | #include "XrayFluoAnalysisManager.hh" |
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49 | #include "XrayFluoDataSet.hh" |
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50 | #ifdef G4ANALYSIS_USE |
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51 | #include "AIDA/AIDA.h" |
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52 | #endif |
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53 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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54 | |
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55 | XrayFluoPrimaryGeneratorAction::XrayFluoPrimaryGeneratorAction(XrayFluoDetectorConstruction* XrayFluoDC) |
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56 | :rndmFlag("off"),beam("off"),spectrum("off"),isoVert("off"),phaseSpaceGunFlag(false), |
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57 | rayleighFlag(true), particleEnergies(0), particleTypes(0), detectorPosition(0) |
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58 | { |
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59 | |
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60 | XrayFluoDetector = XrayFluoDC; |
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61 | |
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62 | G4int n_particle = 1; |
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63 | particleGun = new G4ParticleGun(n_particle); |
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64 | |
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65 | //create a messenger for this class |
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66 | gunMessenger = new XrayFluoPrimaryGeneratorMessenger(this); |
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67 | runManager = new XrayFluoRunAction(); |
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68 | |
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69 | // default particle kinematic |
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70 | |
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71 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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72 | G4String particleName; |
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73 | G4ParticleDefinition* particle |
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74 | = particleTable->FindParticle(particleName="gamma"); |
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75 | particleGun->SetParticleDefinition(particle); |
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76 | particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.)); |
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77 | particleGun->SetParticleEnergy(10.*keV); |
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78 | |
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79 | G4double position = -0.5*(XrayFluoDetector->GetWorldSizeZ()); |
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80 | particleGun->SetParticlePosition(G4ThreeVector(0.*cm,0.*cm,position)); |
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81 | |
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82 | |
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83 | |
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84 | G4cout << "XrayFluoPrimaryGeneratorAction created" << G4endl; |
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85 | |
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86 | } |
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87 | |
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88 | |
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89 | void XrayFluoPrimaryGeneratorAction::ActivatePhaseSpace(G4String fileName) { |
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90 | |
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91 | // load phase-space |
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92 | #ifdef G4ANALYSIS_USE |
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93 | phaseSpaceGunFlag = true; |
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94 | |
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95 | // reads the data stored on disk form previous runs |
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96 | // and get these data to data members |
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97 | |
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98 | XrayFluoAnalysisManager* analysis = XrayFluoAnalysisManager::getInstance(); |
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99 | analysis->LoadGunData(fileName, rayleighFlag); |
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100 | particleEnergies = analysis->GetEmittedParticleEnergies(); |
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101 | particleTypes = analysis->GetEmittedParticleTypes(); |
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102 | detectorPosition = XrayFluoDetector->GetDetectorPosition(); |
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103 | detectorPosition.setR(detectorPosition.r()-(5.*cm)); // 5 cm dietro |
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104 | #endif |
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105 | |
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106 | } |
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107 | |
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108 | |
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109 | void XrayFluoPrimaryGeneratorAction::SetRayleighFlag (G4bool value) |
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110 | { |
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111 | |
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112 | G4cout << "value: " << value << G4endl; |
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113 | rayleighFlag = value; |
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114 | |
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115 | } |
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116 | |
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117 | |
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118 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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119 | |
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120 | XrayFluoPrimaryGeneratorAction::~XrayFluoPrimaryGeneratorAction() |
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121 | { |
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122 | delete particleGun; |
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123 | delete gunMessenger; |
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124 | delete runManager; |
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125 | |
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126 | G4cout << "XrayFluoPrimaryGeneratorAction deleted" << G4endl; |
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127 | |
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128 | } |
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129 | |
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130 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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131 | |
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132 | void XrayFluoPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
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133 | { |
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134 | //this function is called at the begining of event |
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135 | // |
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136 | G4double z0 = -0.5*(XrayFluoDetector->GetWorldSizeZ()); |
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137 | G4double y0 = 0.*cm, x0 = 0.*cm; |
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138 | if (rndmFlag == "on") |
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139 | { |
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140 | y0 = (XrayFluoDetector->GetDia3SizeXY())/std::sqrt(2.)*(G4UniformRand()-0.5); // it was GetSampleSizeXY(), |
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141 | x0 = (XrayFluoDetector->GetDia3SizeXY())/std::sqrt(2.)*(G4UniformRand()-0.5); // not divided by std::sqrt(2.) |
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142 | } |
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143 | particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0)); |
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144 | |
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145 | //randomize starting point |
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146 | if (beam == "on") |
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147 | { |
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148 | G4double radius = 0.5 * mm; |
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149 | G4double rho = radius*std::sqrt(G4UniformRand()); |
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150 | G4double theta = 2*pi*G4UniformRand()*rad; |
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151 | G4double position = -0.5*(XrayFluoDetector->GetWorldSizeZ()); |
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152 | |
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153 | G4double y = rho * std::sin(theta); |
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154 | G4double x = rho * std::cos(theta); |
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155 | |
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156 | particleGun->SetParticlePosition(G4ThreeVector(x,y,position)); |
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157 | } |
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158 | //shoot particles according to a certain spectrum |
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159 | if (spectrum =="on") |
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160 | { |
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161 | G4String particle = particleGun->GetParticleDefinition() |
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162 | ->GetParticleName(); |
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163 | if(particle == "proton"|| particle == "alpha") |
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164 | { |
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165 | G4DataVector* energies = runManager->GetEnergies(); |
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166 | G4DataVector* data = runManager->GetData(); |
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167 | |
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168 | G4double sum = runManager->GetDataSum(); |
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169 | G4double partSum = 0; |
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170 | G4int j = 0; |
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171 | G4double random= sum*G4UniformRand(); |
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172 | while (partSum<random) |
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173 | { |
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174 | partSum += (*data)[j]; |
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175 | j++; |
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176 | } |
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177 | |
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178 | particleGun->SetParticleEnergy((*energies)[j]); |
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179 | |
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180 | } |
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181 | else if (particle == "gamma") |
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182 | { |
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183 | const XrayFluoDataSet* dataSet = runManager->GetGammaSet(); |
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184 | |
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185 | G4int i = 0; |
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186 | G4int id = 0; |
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187 | G4double minEnergy = 0. * keV; |
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188 | G4double particleEnergy= 0.; |
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189 | G4double maxEnergy = 10. * keV; |
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190 | G4double energyRange = maxEnergy - minEnergy; |
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191 | |
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192 | while ( i == 0) |
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193 | { |
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194 | G4double random = G4UniformRand(); |
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195 | |
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196 | G4double randomNum = G4UniformRand(); //*5.0E6; |
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197 | |
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198 | particleEnergy = (random*energyRange) + minEnergy; |
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199 | |
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200 | if ((dataSet->FindValue(particleEnergy,id)) > randomNum) |
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201 | { |
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202 | i = 1; |
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203 | |
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204 | } |
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205 | } |
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206 | particleGun->SetParticleEnergy(particleEnergy); |
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207 | } |
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208 | } |
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209 | |
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210 | // Randomize starting point and direction |
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211 | |
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212 | if (isoVert == "on") |
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213 | { |
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214 | G4double rho = 1. *m; |
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215 | //theta in [0;pi/2] |
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216 | G4double theta = (pi/2)*G4UniformRand(); |
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217 | //phi in [-pi;pi] |
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218 | G4double phi = (G4UniformRand()*2*pi)- pi; |
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219 | G4double x = rho*std::sin(theta)*std::sin(phi); |
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220 | G4double y = rho*std::sin(theta)*std::cos(phi); |
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221 | G4double z = -(rho*std::cos(theta)); |
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222 | particleGun->SetParticlePosition(G4ThreeVector(x,y,z)); |
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223 | |
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224 | G4double Xdim = XrayFluoDetector->GetSampleSizeXY(); |
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225 | G4double Ydim = XrayFluoDetector->GetSampleSizeXY(); |
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226 | |
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227 | G4double Dx = Xdim*(G4UniformRand()-0.5); |
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228 | |
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229 | G4double Dy = Ydim*(G4UniformRand()-0.5); |
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230 | |
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231 | particleGun->SetParticleMomentumDirection(G4ThreeVector(-x+Dx,-y+Dy,-z)); |
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232 | |
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233 | } |
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234 | |
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235 | |
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236 | if (phaseSpaceGunFlag){ |
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237 | |
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238 | size_t i = anEvent->GetEventID(); |
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239 | |
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240 | particleGun->SetParticlePosition(detectorPosition); |
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241 | particleGun->SetParticleMomentumDirection(detectorPosition); |
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242 | G4double energy; |
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243 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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244 | G4ParticleDefinition* particle; |
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245 | if (i < particleEnergies->size()) { |
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246 | energy = (*particleEnergies)[i]; |
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247 | particle = particleTable->FindParticle((*particleTypes)[i]); |
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248 | } |
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249 | |
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250 | else { |
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251 | energy = 0.; |
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252 | particle = particleTable->FindParticle("gamma"); |
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253 | } |
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254 | |
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255 | particleGun->SetParticleEnergy(energy); |
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256 | |
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257 | |
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258 | |
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259 | particleGun->SetParticleDefinition(particle); |
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260 | } |
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261 | |
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262 | #ifdef G4ANALYSIS_USE |
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263 | |
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264 | G4double partEnergy = particleGun->GetParticleEnergy(); |
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265 | XrayFluoAnalysisManager* analysis = XrayFluoAnalysisManager::getInstance(); |
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266 | analysis->analysePrimaryGenerator(partEnergy/keV); |
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267 | |
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268 | #endif |
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269 | |
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270 | particleGun->GeneratePrimaryVertex(anEvent); |
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271 | } |
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272 | |
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273 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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274 | |
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282 | |
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