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2 | // ******************************************************************** |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4PhotoElectricAngularGeneratorTest.cc,v 1.5 2006/06/29 19:44:28 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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29 | // |
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30 | // ------------------------------------------------------------------- |
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31 | // GEANT 4 class file --- Copyright CERN 1998 |
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32 | // CERN Geneva Switzerland |
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33 | // |
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34 | // |
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35 | // File name: G4PhotoElectricAngularGeneratorTest.cc |
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36 | // |
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37 | // Author: Francesco Longo |
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38 | // |
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39 | // Creation date: 04 january 2001 |
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40 | // |
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41 | // Modifications: Luciano Pandola (27 november 2002) |
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42 | // Adapted in order to test G4PenelopePhotoElectricsstrahlung |
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43 | // Minor modification in n-tuple filling |
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44 | // Updated analysis to AIDA 3.0 |
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45 | // Pedro Rodrigues (10 May 2004) |
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46 | // Adapted in order to test angular generators for |
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47 | // G4LowEnergyPhotoElectricsstrahlung |
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48 | // |
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49 | // ------------------------------------------------------------------- |
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50 | |
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51 | #include "G4ThreeVector.hh" |
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52 | #include "globals.hh" |
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53 | #include "G4ios.hh" |
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54 | #include "G4RunManager.hh" |
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55 | #include "G4UImanager.hh" |
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56 | #include "G4UIterminal.hh" |
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57 | #include "G4UItcsh.hh" |
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58 | |
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59 | //#include "fstream" |
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60 | //#include "iomanip" |
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61 | |
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62 | #include "G4Material.hh" |
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63 | #include "G4MaterialTable.hh" |
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64 | #include "G4LowEnergyPhotoElectric.hh" |
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65 | #include "G4VPhotoElectricAngularDistribution.hh" |
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66 | #include "G4PhotoElectricAngularGeneratorSimple.hh" |
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67 | #include "G4PhotoElectricAngularGeneratorSauterGavrila.hh" |
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68 | #include "G4PhotoElectricAngularGeneratorPolarized.hh" |
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69 | |
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70 | #include "AIDA/IManagedObject.h" |
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71 | #include <memory> |
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72 | #include "AIDA/IAnalysisFactory.h" |
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73 | #include "AIDA/ITreeFactory.h" |
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74 | #include "AIDA/ITree.h" |
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75 | #include "AIDA/IHistogramFactory.h" |
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76 | #include "AIDA/IHistogram1D.h" |
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77 | #include "AIDA/IHistogram2D.h" |
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78 | #include "AIDA/IHistogram3D.h" |
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79 | #include "AIDA/ITupleFactory.h" |
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80 | #include "AIDA/ITuple.h" |
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81 | |
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82 | G4ThreeVector SetPerpendicularVector(G4ThreeVector& a) |
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83 | { |
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84 | G4double dx = a.x(); |
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85 | G4double dy = a.y(); |
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86 | G4double dz = a.z(); |
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87 | G4double x = dx < 0.0 ? -dx : dx; |
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88 | G4double y = dy < 0.0 ? -dy : dy; |
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89 | G4double z = dz < 0.0 ? -dz : dz; |
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90 | if (x < y) { |
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91 | return x < z ? G4ThreeVector(-dy,dx,0) : G4ThreeVector(0,-dz,dy); |
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92 | }else{ |
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93 | return y < z ? G4ThreeVector(dz,0,-dx) : G4ThreeVector(-dy,dx,0); |
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94 | } |
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95 | } |
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96 | |
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97 | int main() |
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98 | { |
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99 | |
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100 | // ------------------------------------------------------------------- |
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101 | |
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102 | // ---- HBOOK initialization |
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103 | |
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104 | AIDA::IAnalysisFactory* af = AIDA_createAnalysisFactory(); |
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105 | AIDA::ITreeFactory* tf = af->createTreeFactory(); |
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106 | AIDA::ITree* tree = tf->create("phot_angular_test.hbook","hbook",false,true); |
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107 | G4cout << "Tree store: " << tree->storeName() << G4endl; |
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108 | AIDA::IHistogramFactory* hf = af->createHistogramFactory(*tree); |
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109 | AIDA::IHistogram1D* histo_1 = hf->createHistogram1D("1","Cos Polar Angle", 100,0.,3.14159); |
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110 | AIDA::IHistogram1D* histo_2 = hf->createHistogram1D("2","Azimuthal Angle", 100,0.,3.14159); |
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111 | AIDA::IHistogram2D* histo_3 = hf->createHistogram2D("3","2d", 100,0.,3.14159,200,-3.14159,3.14159); |
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112 | |
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113 | // Interactive set-up |
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114 | G4cout << "How many interactions at generator level ?" << G4endl; |
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115 | G4int nIterations = 0; |
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116 | G4cin >> nIterations; |
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117 | if (nIterations <= 0) G4Exception("Wrong input"); |
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118 | |
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119 | G4int gType = 0; |
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120 | G4cout << "Simple [1]" << G4endl; |
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121 | G4cout << "SauterGavrila [2]" << G4endl; |
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122 | G4cout << "Polarized [3]" << G4endl; |
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123 | G4cin >> gType; |
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124 | if ( !(gType < 4)) G4Exception("Wrong input"); |
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125 | |
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126 | G4VPhotoElectricAngularDistribution* angularDistribution = 0; |
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127 | |
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128 | if (gType == 1) |
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129 | { |
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130 | angularDistribution = new G4PhotoElectricAngularGeneratorSimple("PhotoElectricAngularGeneratorSimple"); |
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131 | } |
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132 | |
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133 | if(gType == 2) |
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134 | { |
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135 | angularDistribution = new G4PhotoElectricAngularGeneratorSauterGavrila("PhotoElectricAngularGeneratorSauterGavrila"); |
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136 | } |
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137 | |
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138 | if(gType == 3) |
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139 | { |
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140 | angularDistribution = new G4PhotoElectricAngularGeneratorPolarized("PhotoElectricAngularGeneratorPolarized"); |
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141 | } |
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142 | |
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143 | angularDistribution->PrintGeneratorInformation(); |
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144 | |
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145 | G4ThreeVector direction(0,0,1); //photon incident energy |
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146 | G4double initEnergy = 0; |
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147 | G4cout << "Enter the photon energy E (keV)" << G4endl; |
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148 | G4cin >> initEnergy ; |
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149 | initEnergy = initEnergy*keV; |
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150 | |
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151 | if (initEnergy <= 0.) G4Exception("Wrong input"); |
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152 | G4cout << "Shell level" << G4endl; |
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153 | G4int level; |
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154 | G4cin >> level; |
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155 | |
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156 | for(G4int i = 0; i < nIterations; i++){ |
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157 | |
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158 | // random poll |
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159 | G4ThreeVector d0 = direction.unit(); |
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160 | G4ThreeVector a1 = SetPerpendicularVector(d0); //different orthogonal |
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161 | G4ThreeVector a0 = a1.unit(); // unit vector |
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162 | G4double rand1 = G4UniformRand(); |
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163 | // G4double rand1 = 0; |
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164 | G4double angle = twopi*rand1; // random polar angle |
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165 | G4ThreeVector b0 = d0.cross(a0); // cross product |
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166 | G4ThreeVector c; |
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167 | c.setX(std::cos(angle)*(a0.x())+std::sin(angle)*b0.x()); |
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168 | c.setY(std::cos(angle)*(a0.y())+std::sin(angle)*b0.y()); |
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169 | c.setZ(std::cos(angle)*(a0.z())+std::sin(angle)*b0.z()); |
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170 | G4ThreeVector pol = c.unit(); |
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171 | |
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172 | G4ThreeVector photondirection = angularDistribution->GetPhotoElectronDirection(direction, initEnergy, pol, level); |
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173 | G4cout << photondirection.theta() << G4endl; |
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174 | |
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175 | histo_1->fill(photondirection.theta()); |
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176 | histo_2->fill(photondirection.phi()); |
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177 | histo_3->fill(photondirection.theta(),photondirection.phi()); |
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178 | |
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179 | } |
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180 | |
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181 | G4cout << "Committing.............." << G4endl; |
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182 | tree->commit(); |
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183 | G4cout << "Closing the tree........" << G4endl; |
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184 | tree->close(); |
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185 | |
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186 | delete angularDistribution; |
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187 | G4cout << "END OF THE MAIN PROGRAM" << G4endl; |
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188 | return 0; |
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189 | |
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190 | } |
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