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15 | // * use. Please see the license in the file LICENSE and URL above * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: XrayFluoPlanePrimaryGeneratorAction.cc |
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28 | // GEANT4 tag $Name: |
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29 | // |
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30 | // Author: Alfonso Mantero (Alfonso.Mantero@ge.infn.it) |
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31 | // |
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32 | // History: |
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33 | // ----------- |
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34 | // 02 Sep 2003 Alfonso Mantero created |
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35 | // |
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36 | // ------------------------------------------------------------------- |
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37 | |
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38 | #include "XrayFluoPlanePrimaryGeneratorAction.hh" |
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39 | #include "G4DataVector.hh" |
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40 | #include "XrayFluoPlaneDetectorConstruction.hh" |
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41 | #include "XrayFluoPlanePrimaryGeneratorMessenger.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 | |
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51 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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52 | |
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53 | XrayFluoPlanePrimaryGeneratorAction::XrayFluoPlanePrimaryGeneratorAction(XrayFluoPlaneDetectorConstruction* XrayFluoDC) |
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54 | :rndmFlag("on"),beam("off"),spectrum("off"),isoVert("off") |
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55 | { |
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56 | |
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57 | XrayFluoDetector = XrayFluoDC; |
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58 | |
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59 | G4int n_particle = 1; |
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60 | particleGun = new G4ParticleGun(n_particle); |
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61 | |
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62 | //create a messenger for this class |
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63 | gunMessenger = new XrayFluoPlanePrimaryGeneratorMessenger(this); |
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64 | runManager = new XrayFluoRunAction(); |
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65 | |
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66 | // default particle kinematic |
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67 | |
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68 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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69 | G4String particleName; |
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70 | G4ParticleDefinition* particle |
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71 | = particleTable->FindParticle(particleName="gamma"); |
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72 | particleGun->SetParticleDefinition(particle); |
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73 | particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.)); |
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74 | |
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75 | |
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76 | particleGun->SetParticleEnergy(10.*keV); |
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77 | G4double position = -0.5*(XrayFluoDetector->GetWorldSizeZ()); |
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78 | particleGun->SetParticlePosition(G4ThreeVector(0.*cm,0.*cm,position)); |
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79 | |
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80 | G4cout << "XrayFluoPlanePrimaryGeneratorAction created UUUUUUUUUUAAAAAAAAAAAAAAAAAAAAAAAaa" << G4endl; |
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81 | |
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82 | } |
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83 | |
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84 | |
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85 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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86 | |
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87 | XrayFluoPlanePrimaryGeneratorAction::~XrayFluoPlanePrimaryGeneratorAction() |
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88 | { |
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89 | delete particleGun; |
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90 | delete gunMessenger; |
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91 | delete runManager; |
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92 | |
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93 | G4cout << "XrayFluoPlanePrimaryGeneratorAction deleted" << G4endl; |
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94 | |
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95 | } |
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96 | |
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97 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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98 | |
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99 | void XrayFluoPlanePrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
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100 | { |
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101 | //this function is called at the begining of event |
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102 | // |
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103 | G4double z0 = -0.5*(XrayFluoDetector->GetWorldSizeZ()); |
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104 | G4double y0 = 0.*m, x0 = 0.*m; |
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105 | G4double dX = 0.5*(XrayFluoDetector->GetWorldSizeXY())-(XrayFluoDetector->GetPlaneSizeXY()); |
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106 | if (rndmFlag == "on") |
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107 | |
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108 | {y0 = (XrayFluoDetector->GetPlaneSizeXY())*(G4UniformRand()-0.5); |
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109 | x0 = (XrayFluoDetector->GetPlaneSizeXY())*(G4UniformRand()-0.5) + dX; |
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110 | } |
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111 | |
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112 | z0 = -1 * dX; |
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113 | |
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114 | particleGun->SetParticleMomentumDirection(G4ThreeVector(-1.,0.,1.)); |
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115 | |
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116 | particleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0)); |
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117 | |
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118 | //randomize starting point |
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119 | if (beam == "on") |
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120 | { |
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121 | G4double radius = 0.5 * mm; |
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122 | G4double rho = radius*std::sqrt(G4UniformRand()); |
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123 | G4double theta = 2*pi*G4UniformRand()*rad; |
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124 | G4double position = -0.5*(XrayFluoDetector->GetWorldSizeZ()); |
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125 | |
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126 | G4double y = rho * std::sin(theta); |
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127 | G4double x = rho * std::cos(theta); |
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128 | |
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129 | particleGun->SetParticlePosition(G4ThreeVector(x,y,position)); |
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130 | } |
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131 | //shoot particles according to a certain spectrum |
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132 | if (spectrum =="on") |
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133 | { |
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134 | G4String particle = particleGun->GetParticleDefinition() |
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135 | ->GetParticleName(); |
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136 | if(particle == "proton"|| particle == "alpha") |
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137 | { |
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138 | G4DataVector* energies = runManager->GetEnergies(); |
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139 | G4DataVector* data = runManager->GetData(); |
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140 | |
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141 | G4double sum = runManager->GetDataSum(); |
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142 | G4double partSum = 0; |
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143 | G4int j = 0; |
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144 | G4double random= sum*G4UniformRand(); |
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145 | while (partSum<random) |
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146 | { |
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147 | partSum += (*data)[j]; |
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148 | j++; |
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149 | } |
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150 | |
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151 | particleGun->SetParticleEnergy((*energies)[j]); |
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152 | |
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153 | } |
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154 | else if (particle == "gamma") |
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155 | { |
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156 | const XrayFluoDataSet* dataSet = runManager->GetGammaSet(); |
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157 | |
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158 | G4int i = 0; |
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159 | G4int id = 0; |
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160 | G4double minEnergy = 0. * keV; |
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161 | G4double particleEnergy= 0.; |
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162 | G4double maxEnergy = 10. * keV; |
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163 | G4double energyRange = maxEnergy - minEnergy; |
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164 | |
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165 | while ( i == 0) |
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166 | { |
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167 | G4double random = G4UniformRand(); |
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168 | |
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169 | G4double randomNum = G4UniformRand(); //*5.0E6; |
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170 | |
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171 | particleEnergy = (random*energyRange) + minEnergy; |
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172 | |
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173 | if ((dataSet->FindValue(particleEnergy,id)) > randomNum) |
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174 | { |
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175 | i = 1; |
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176 | |
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177 | } |
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178 | } |
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179 | particleGun->SetParticleEnergy(particleEnergy); |
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180 | } |
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181 | } |
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182 | |
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183 | if (isoVert == "on") |
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184 | { |
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185 | G4double rho = 1. *m; |
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186 | //theta in [0;pi/2] |
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187 | G4double theta = (pi/2)*G4UniformRand(); |
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188 | //phi in [-pi;pi] |
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189 | G4double phi = (G4UniformRand()*2*pi)- pi; |
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190 | G4double x = rho*std::sin(theta)*std::sin(phi); |
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191 | G4double y = rho*std::sin(theta)*std::cos(phi); |
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192 | G4double z = -(rho*std::cos(theta)); |
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193 | particleGun->SetParticlePosition(G4ThreeVector(x,y,z)); |
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194 | |
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195 | G4double Xdim = XrayFluoDetector->GetPlaneSizeXY(); |
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196 | G4double Ydim = XrayFluoDetector->GetPlaneSizeXY(); |
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197 | |
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198 | G4double Dx = Xdim*(G4UniformRand()-0.5); |
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199 | |
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200 | G4double Dy = Ydim*(G4UniformRand()-0.5); |
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201 | |
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202 | particleGun->SetParticleMomentumDirection(G4ThreeVector(-x+Dx,-y+Dy,-z)); |
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203 | |
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204 | } |
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205 | #ifdef G4ANALYSIS_USE |
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206 | |
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207 | G4double partEnergy = particleGun->GetParticleEnergy(); |
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208 | XrayFluoAnalysisManager* analysis = XrayFluoAnalysisManager::getInstance(); |
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209 | analysis->analysePrimaryGenerator(partEnergy/keV); |
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210 | |
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211 | #endif |
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212 | |
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213 | particleGun->GeneratePrimaryVertex(anEvent); |
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214 | } |
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215 | |
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216 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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