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 | // Unit test for coherent elastic models |
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28 | // |
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29 | // 18.05.07 V. Grichine |
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30 | // |
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31 | // |
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32 | |
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33 | #include "G4ios.hh" |
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34 | #include <fstream> |
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35 | #include <cmath> |
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36 | #include "globals.hh" |
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37 | #include "Randomize.hh" |
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38 | #include "G4UnitsTable.hh" |
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39 | #include <iomanip> |
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40 | #include <complex> |
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41 | |
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42 | |
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43 | #include "G4Element.hh" |
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44 | #include "G4NistManager.hh" |
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45 | |
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46 | |
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47 | #include "G4ParticleDefinition.hh" |
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48 | #include "G4PionPlus.hh" |
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49 | #include "G4PionMinus.hh" |
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50 | #include "G4MuonPlus.hh" |
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51 | #include "G4MuonMinus.hh" |
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52 | #include "G4Proton.hh" |
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53 | #include "G4Electron.hh" |
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54 | |
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55 | #include "G4DynamicParticle.hh" |
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56 | #include "G4ParticleMomentum.hh" |
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57 | |
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58 | |
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59 | #include "G4MscRadiation.hh" |
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60 | |
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61 | |
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62 | using namespace std; |
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63 | |
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64 | |
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65 | G4double SimpleMF(G4double x) |
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66 | { |
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67 | G4double order = 6.*x; |
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68 | return 1. - std::exp(-order); |
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69 | } |
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70 | |
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71 | |
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72 | G4double SimpleMPsi(G4double x) |
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73 | { |
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74 | G4double order = 4.*x; |
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75 | return 1. - std::exp(-order); |
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76 | } |
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77 | |
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78 | |
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79 | G4double SimpleMG(G4double x) |
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80 | { |
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81 | return 3.*SimpleMPsi(x) - 2.*SimpleMF(x); |
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82 | } |
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83 | |
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84 | |
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85 | |
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86 | G4double MediumMF(G4double x) |
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87 | { |
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88 | G4double order = 6.*x; |
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89 | order *= 1. + (3. - pi)*x; |
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90 | |
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91 | return 1. - std::exp(-order); |
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92 | } |
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93 | |
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94 | |
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95 | G4double MediumMPsi(G4double x) |
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96 | { |
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97 | G4double order = 4.*x + 8.*x*x; |
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98 | return 1. - std::exp(-order); |
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99 | } |
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100 | |
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101 | |
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102 | G4double MediumMG(G4double x) |
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103 | { |
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104 | return 3.*MediumMPsi(x) - 2.*MediumMF(x); |
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105 | } |
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106 | |
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107 | |
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108 | G4double ComplexMF(G4double x) |
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109 | { |
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110 | G4double order = 6.*x; |
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111 | order *= 1. + (3. - pi)*x; |
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112 | order -= x*x*x/(0.623+0.796*x+0.658*x*x); |
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113 | |
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114 | return 1. - std::exp(-order); |
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115 | } |
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116 | |
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117 | |
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118 | G4double ComplexMPsi(G4double x) |
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119 | { |
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120 | G4double order = 4.*x + 8.*x*x/(1.+ 3.96*x + 4.97*x*x - 0.05*x*x*x + 7.5*x*x*x*x); |
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121 | return 1. - std::exp(-order); |
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122 | } |
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123 | |
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124 | |
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125 | |
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126 | G4double ComplexMG(G4double x) |
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127 | { |
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128 | return 3.*ComplexMPsi(x) - 2.*ComplexMF(x); |
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129 | } |
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130 | |
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131 | |
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132 | |
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133 | int main() |
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134 | { |
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135 | |
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136 | G4int i, j, k, iMax; |
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137 | G4double x; |
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138 | G4double expXrad=0., g4Xrad; |
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139 | |
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140 | std::ofstream writef("angle.dat", std::ios::out ) ; |
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141 | writef.setf( std::ios::scientific, std::ios::floatfield ); |
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142 | |
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143 | // iMax = 200; |
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144 | iMax = 0; |
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145 | // writef<<iMax<<G4endl; |
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146 | for( i = 1; i <= iMax; i++ ) |
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147 | { |
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148 | x = 0.01*i; |
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149 | // G4cout<<x<<"\t"<<SimpleMF(x)<<"\t"<<MediumMF(x)<<"\t"<<ComplexMF(x)<<G4endl; |
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150 | // writef<<x<<"\t"<<SimpleMF(x)<<"\t"<<MediumMF(x)<<"\t"<<ComplexMF(x)<<G4endl; |
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151 | |
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152 | // G4cout<<x<<"\t"<<SimpleMPsi(x)<<"\t"<<MediumMPsi(x)<<"\t"<<ComplexMPsi(x)<<G4endl; |
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153 | // writef<<x<<"\t"<<SimpleMPsi(x)<<"\t"<<MediumMPsi(x)<<"\t"<<ComplexMPsi(x)<<G4endl; |
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154 | |
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155 | // G4cout<<x<<"\t"<<SimpleMG(x)<<"\t"<<MediumMG(x)<<"\t"<<ComplexMG(x)<<G4endl; |
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156 | // writef<<x<<"\t"<<SimpleMG(x)<<"\t"<<MediumMG(x)<<"\t"<<ComplexMG(x)<<G4endl; |
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157 | } |
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158 | |
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159 | G4Element* theElement; |
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160 | G4Material* theMaterial; |
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161 | G4NistManager* man = G4NistManager::Instance(); |
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162 | man->SetVerbose(1); |
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163 | |
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164 | G4cout << " 1 hydrogen" << G4endl; |
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165 | G4cout << " 2 helium" << G4endl; |
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166 | G4cout << " 4 berillium" << G4endl; |
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167 | G4cout << " 6 carbon" << G4endl; |
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168 | G4cout << " 7 nitrogen" << G4endl; |
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169 | G4cout << " 8 oxigen" << G4endl; |
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170 | G4cout << "13 aluminium" << G4endl; |
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171 | G4cout << "14 silicon" << G4endl; |
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172 | G4cout << "18 argon" << G4endl; |
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173 | G4cout << "26 iron" << G4endl; |
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174 | G4cout << "29 copper" << G4endl; |
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175 | G4cout << "48 cadmium" << G4endl; |
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176 | G4cout << "74 tugnsten" << G4endl; |
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177 | G4cout << "77 iridium" << G4endl; |
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178 | G4cout << "82 lead" << G4endl; |
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179 | G4cout << "92 uranium" << G4endl; |
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180 | G4int choice; |
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181 | // G4cin >> choice; |
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182 | choice = 13; |
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183 | |
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184 | |
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185 | switch (choice) |
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186 | { |
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187 | case 1: |
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188 | |
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189 | theElement = man->FindOrBuildElement("H"); |
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190 | theMaterial = man->FindOrBuildMaterial("G4_H"); |
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191 | g4Xrad = theMaterial->GetRadlen(); |
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192 | break; |
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193 | |
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194 | case 2: |
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195 | |
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196 | theElement = man->FindOrBuildElement("He"); |
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197 | theMaterial = man->FindOrBuildMaterial("G4_He"); |
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198 | g4Xrad = theMaterial->GetRadlen(); |
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199 | break; |
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200 | |
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201 | case 4: |
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202 | |
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203 | theElement = man->FindOrBuildElement("Be"); |
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204 | theMaterial = man->FindOrBuildMaterial("G4_Be"); |
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205 | g4Xrad = theMaterial->GetRadlen(); |
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206 | break; |
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207 | |
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208 | case 6: |
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209 | |
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210 | theElement = man->FindOrBuildElement("C"); |
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211 | theMaterial = man->FindOrBuildMaterial("G4_C"); |
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212 | g4Xrad = theMaterial->GetRadlen(); |
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213 | expXrad = 19.6*cm; |
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214 | break; |
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215 | |
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216 | case 7: |
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217 | |
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218 | theElement = man->FindOrBuildElement("N"); |
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219 | theMaterial = man->FindOrBuildMaterial("G4_N"); |
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220 | g4Xrad = theMaterial->GetRadlen(); |
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221 | break; |
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222 | |
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223 | |
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224 | case 8: |
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225 | |
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226 | theElement = man->FindOrBuildElement("O"); |
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227 | theMaterial = man->FindOrBuildMaterial("G4_O"); |
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228 | g4Xrad = theMaterial->GetRadlen(); |
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229 | break; |
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230 | |
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231 | case 13: |
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232 | |
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233 | theElement = man->FindOrBuildElement("Al"); |
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234 | theMaterial = man->FindOrBuildMaterial("G4_Al"); |
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235 | g4Xrad = theMaterial->GetRadlen(); |
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236 | expXrad = 8.9*cm; |
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237 | break; |
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238 | |
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239 | case 14: |
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240 | |
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241 | theElement = man->FindOrBuildElement("Si"); |
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242 | theMaterial = man->FindOrBuildMaterial("G4_Si"); |
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243 | g4Xrad = theMaterial->GetRadlen(); |
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244 | break; |
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245 | |
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246 | case 18: |
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247 | |
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248 | theElement = man->FindOrBuildElement("Ar"); |
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249 | theMaterial = man->FindOrBuildMaterial("G4_Ar"); |
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250 | break; |
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251 | |
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252 | case 26: |
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253 | |
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254 | theElement = man->FindOrBuildElement("Fe"); |
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255 | theMaterial = man->FindOrBuildMaterial("G4_Fe"); |
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256 | g4Xrad = theMaterial->GetRadlen(); |
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257 | expXrad = 1.76*cm; |
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258 | break; |
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259 | |
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260 | case 29: |
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261 | |
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262 | theElement = man->FindOrBuildElement("Cu"); |
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263 | theMaterial = man->FindOrBuildMaterial("G4_Cu"); |
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264 | g4Xrad = theMaterial->GetRadlen(); |
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265 | break; |
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266 | |
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267 | case 48: |
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268 | |
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269 | theElement = man->FindOrBuildElement("Cd"); |
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270 | theMaterial = man->FindOrBuildMaterial("G4_Cd"); |
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271 | g4Xrad = theMaterial->GetRadlen(); |
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272 | break; |
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273 | |
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274 | |
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275 | case 74: |
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276 | |
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277 | theElement = man->FindOrBuildElement("W"); |
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278 | theMaterial = man->FindOrBuildMaterial("G4_W"); |
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279 | g4Xrad = theMaterial->GetRadlen(); |
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280 | expXrad = 0.35*cm; |
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281 | break; |
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282 | |
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283 | case 77: |
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284 | |
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285 | theElement = man->FindOrBuildElement("Ir"); |
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286 | theMaterial = man->FindOrBuildMaterial("G4_Ir"); |
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287 | g4Xrad = theMaterial->GetRadlen(); |
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288 | break; |
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289 | |
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290 | case 82: |
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291 | |
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292 | theElement = man->FindOrBuildElement("Pb"); |
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293 | theMaterial = man->FindOrBuildMaterial("G4_Pb"); |
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294 | g4Xrad = theMaterial->GetRadlen(); |
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295 | expXrad = 0.56*cm; |
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296 | break; |
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297 | |
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298 | case 92: |
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299 | |
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300 | theElement = man->FindOrBuildElement("U"); |
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301 | theMaterial = man->FindOrBuildMaterial("G4_U"); |
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302 | g4Xrad = theMaterial->GetRadlen(); |
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303 | expXrad = 0.35*cm; |
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304 | break; |
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305 | } |
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306 | |
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307 | // Particle definition |
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308 | |
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309 | G4cout << " 1 electron" << G4endl; |
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310 | G4cout << " 2 proton" << G4endl; |
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311 | G4cout << " 3 pion+" << G4endl; |
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312 | G4cout << " 4 pion-" << G4endl; |
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313 | G4cout << " 4 muon+" << G4endl; |
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314 | G4cout << " 5 muon-" << G4endl; |
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315 | |
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316 | // G4cin >> choice; |
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317 | choice = 1; |
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318 | |
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319 | G4ParticleDefinition* theParticleDefinition; |
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320 | |
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321 | |
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322 | switch (choice) |
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323 | { |
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324 | case 1: |
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325 | |
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326 | theParticleDefinition = G4Electron::ElectronDefinition(); |
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327 | break; |
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328 | |
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329 | case 2: |
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330 | |
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331 | theParticleDefinition = G4Proton::ProtonDefinition(); |
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332 | break; |
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333 | |
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334 | case 3: |
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335 | |
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336 | theParticleDefinition = G4PionPlus::PionPlusDefinition(); |
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337 | break; |
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338 | |
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339 | case 4: |
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340 | |
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341 | theParticleDefinition = G4PionMinus::PionMinusDefinition(); |
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342 | break; |
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343 | |
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344 | case 5: |
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345 | |
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346 | theParticleDefinition = G4MuonPlus::MuonPlusDefinition(); |
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347 | break; |
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348 | |
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349 | case 6: |
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350 | |
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351 | theParticleDefinition = G4MuonMinus::MuonMinusDefinition(); |
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352 | break; |
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353 | |
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354 | } |
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355 | |
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356 | G4double energyMscXR, kinEnergy; |
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357 | |
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358 | |
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359 | // kinEnergy = 8*GeV; // 25.0*GeV; |
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360 | |
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361 | kinEnergy = 25.0*GeV; |
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362 | |
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363 | |
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364 | G4DynamicParticle* theDynamicParticle = new G4DynamicParticle(theParticleDefinition, |
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365 | G4ParticleMomentum(0.,0.,1.), |
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366 | kinEnergy); |
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367 | |
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368 | G4double m1 = theParticleDefinition->GetPDGMass(); |
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369 | G4double plab = theDynamicParticle->GetTotalMomentum(); |
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370 | G4cout <<"lab momentum, plab = "<<plab/GeV<<" GeV"<<G4endl; |
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371 | G4double plabLowLimit = 20.0*MeV; |
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372 | |
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373 | G4int Z = G4int(theElement->GetZ()); |
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374 | G4int A = G4int(theElement->GetN()+0.5); |
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375 | |
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376 | G4double step = 4.10*mm; |
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377 | |
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378 | step = expXrad; |
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379 | |
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380 | G4double m2 = man->GetAtomicMassAmu(Z)*GeV; |
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381 | // G4double m2 = man->GetAtomicMass( Z, A); |
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382 | G4cout <<" target mass, m2 = "<<m2/GeV<<" GeV"<<G4endl<<G4endl; |
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383 | G4cout <<"step = "<<step<<" mm; g4Xrad = "<<g4Xrad<<" mm; expXrad = " |
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384 | <<expXrad<<" mm"<<G4endl<<G4endl; |
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385 | |
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386 | |
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387 | // G4MscRadiation* mscRad = new G4MscRadiation(theMaterial, step); |
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388 | G4MscRadiation* mscRad = new G4MscRadiation(theMaterial, step, theDynamicParticle); |
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389 | |
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390 | mscRad->SetVerboseLevel(0); |
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391 | |
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392 | G4double numberMscXR, numberMGYXR, numberE146XR, absorption, lincofXR, radLength; |
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393 | |
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394 | G4double sRe, sIm, mcRe, mcIm, tmRe, tmIm, tmc, sf; |
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395 | |
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396 | G4complex ms, mc, tm; |
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397 | |
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398 | G4double s, phi, xi, G, psi, tmef; |
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399 | |
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400 | iMax = 50; |
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401 | |
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402 | writef<<iMax<<G4endl; |
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403 | |
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404 | for( i = 0; i < iMax; i++ ) |
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405 | { |
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406 | energyMscXR = std::exp(i*0.2)*0.1*MeV; |
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407 | lincofXR = mscRad->GetPlateLinearPhotoAbs(energyMscXR); |
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408 | absorption = (1. - std::exp(-lincofXR*step))/lincofXR; |
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409 | |
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410 | /* |
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411 | |
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412 | numberMscXR = mscRad->CalculateMscDiffdNdx(theDynamicParticle,energyMscXR); |
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413 | numberMGYXR = mscRad->CalculateMscMigdalDiffdNdx(theDynamicParticle,energyMscXR); |
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414 | numberE146XR = mscRad->CalculateMscE146DiffdNdx(energyMscXR); |
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415 | |
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416 | radLength = mscRad->GetRadLength(); |
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417 | |
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418 | numberMscXR *= energyMscXR; // *expXrad; |
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419 | numberMGYXR *= energyMscXR; // *expXrad; |
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420 | numberE146XR *= energyMscXR; // *expXrad; |
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421 | |
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422 | // numberMscXR *= expXrad; |
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423 | // numberMscXR *= expXrad; |
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424 | |
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425 | numberMscXR *= absorption; |
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426 | numberMGYXR *= absorption; |
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427 | numberE146XR *= absorption; |
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428 | |
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429 | G4cout <<"effStep = "<<absorption<<" mm; eXR = " |
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430 | <<energyMscXR/MeV<<" MeV; MscXR = " |
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431 | <<numberMscXR<<" "<<"; MGYXR = " |
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432 | <<numberMGYXR<<" "<<"; E146XR = " |
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433 | <<numberE146XR<<" "<<G4endl; |
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434 | writef <<energyMscXR/MeV<<"\t"<<numberMscXR<<"\t"<<numberMGYXR<<"\t"<<numberE146XR<<G4endl; |
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435 | |
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436 | |
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437 | |
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438 | |
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439 | mscRad->CalculateCorrectionTMGY(energyMscXR); |
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440 | tm = mscRad->GetCorrectionTMGY(); |
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441 | ms = mscRad->CalculateMigdalS(energyMscXR); |
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442 | mc = mscRad->CalculateCorrectionMsc(energyMscXR); |
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443 | tmc = real(mc/tm); |
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444 | |
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445 | |
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446 | // sf = mscRad->SupressionFunction(kinEnergy, energyMscXR); |
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447 | |
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448 | mscRad->CalcLPMFunctions(kinEnergy, energyMscXR); |
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449 | |
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450 | s = mscRad->GetMigdalS(); |
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451 | phi = mscRad->GetMigdalPhi(); |
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452 | xi = mscRad->GetMigdalXi(); |
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453 | psi = mscRad->GetMigdalPsi(); |
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454 | G = mscRad->GetMigdalG(); |
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455 | tmef = mscRad->GetTMEffect(); |
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456 | |
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457 | G4cout <<energyMscXR/MeV<<"\t"<<real(tm)<<"\t"<<imag(tm) |
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458 | <<"\t"<<real(ms)<<"\t"<<imag(ms) |
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459 | <<"\t"<<real(mc)<<"\t"<<imag(mc)<<"\t"<<sf<<G4endl; |
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460 | writef<<energyMscXR/MeV<<"\t"<<real(tm)<<"\t"<<real(mc)<<"\t"<<tmc<<"\t"<<sf<<G4endl; |
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461 | |
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462 | |
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463 | |
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464 | // G4cout <<energyMscXR/MeV<<"\t"<<sf<<G4endl; |
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465 | // G4cout <<energyMscXR/MeV<<"\t"<<s<<G4endl; |
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466 | // writef <<energyMscXR/MeV<<"\t"<<s<<G4endl; |
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467 | // writef <<energyMscXR/MeV<<"\t"<<real(mc)<<G4endl; |
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468 | // writef <<energyMscXR/MeV<<"\t"<<s<<G4endl; |
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469 | |
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470 | |
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471 | G4cout <<energyMscXR/MeV<<"\t"<<phi<<"\t"<<xi<<"\t"<<psi<<"\t"<<G<<"\t"<<tmef<<G4endl; |
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472 | writef <<energyMscXR/MeV<<"\t"<<phi<<"\t"<<xi<<"\t"<<psi<<"\t"<<G<<"\t"<<tmef<<G4endl; |
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473 | |
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474 | */ |
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475 | |
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476 | |
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477 | |
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478 | } |
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479 | |
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480 | |
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481 | G4double eTkin, lambda; |
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482 | iMax = 50; |
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483 | |
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484 | // writef<<iMax<<G4endl; |
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485 | |
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486 | for( i = 0; i < iMax; i++ ) |
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487 | { |
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488 | |
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489 | eTkin = std::exp(i*0.5)*0.001*MeV; |
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490 | |
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491 | G4DynamicParticle* aDynamicParticle = new G4DynamicParticle(theParticleDefinition, |
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492 | G4ParticleMomentum(0.,0.,1.), |
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493 | eTkin); |
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494 | |
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495 | G4MscRadiation* aMscRad = new G4MscRadiation(theMaterial, step, aDynamicParticle); |
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496 | |
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497 | lambda = aMscRad->CalculateMscE146Lambda(); |
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498 | |
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499 | G4cout <<eTkin/GeV<<"\t"<<lambda<<G4endl; |
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500 | writef <<eTkin/GeV<<"\t"<<lambda<<G4endl; |
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501 | |
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502 | |
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503 | delete aMscRad; |
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504 | delete aDynamicParticle; |
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505 | } |
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506 | |
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507 | |
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508 | |
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509 | |
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510 | return 1; |
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511 | } // end of main |
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