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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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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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15 | // * use. Please see the license in the file LICENSE and URL above * |
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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 | // $Id: G4ElectronIonPair.hh,v 1.2 2008/10/17 14:46:16 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02 $ |
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28 | // |
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29 | // |
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30 | #ifndef G4ElectronIonPair_h |
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31 | #define G4ElectronIonPair_h 1 |
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32 | |
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33 | // ------------------------------------------------------------- |
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34 | // |
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35 | // GEANT4 Class header file |
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36 | // |
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37 | // |
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38 | // File name: G4ElectronIonPair |
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39 | // |
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40 | // Author: Vladimir Ivanchenko |
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41 | // |
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42 | // Creation date: 08.07.2008 |
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43 | // |
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44 | // Modifications: |
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45 | // |
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46 | // |
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47 | // Class Description: |
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48 | // Compution on number of electon-ion or electorn-hole pairs |
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49 | // at the step of a particle and sampling ionisation points |
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50 | // in space |
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51 | // |
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52 | // Based on ICRU Report 31, 1979 |
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53 | // "Average Energy Required to Produce an Ion Pair" |
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54 | // |
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55 | // ------------------------------------------------------------- |
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56 | |
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57 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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58 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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59 | |
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60 | #include "globals.hh" |
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61 | #include "G4Step.hh" |
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62 | #include "G4ParticleDefinition.hh" |
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63 | #include "G4ThreeVector.hh" |
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64 | #include "G4TrackVector.hh" |
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65 | #include "G4VProcess.hh" |
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66 | #include <vector> |
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67 | |
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68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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69 | |
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70 | class G4Material; |
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71 | |
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72 | class G4ElectronIonPair |
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73 | { |
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74 | public: |
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75 | |
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76 | G4ElectronIonPair(); |
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77 | |
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78 | virtual ~G4ElectronIonPair(); |
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79 | |
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80 | // compute mean number of ionisation points at a step |
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81 | G4double MeanNumberOfIonsAlongStep(const G4ParticleDefinition*, |
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82 | const G4Material*, |
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83 | G4double edepTotal, |
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84 | G4double edepNIEL = 0.0); |
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85 | |
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86 | inline G4double MeanNumberOfIonsAlongStep(const G4Step*); |
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87 | |
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88 | // returns pointer to the new vector of positions of |
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89 | // ionisation points in the World coordinate system |
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90 | std::vector<G4ThreeVector>* |
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91 | SampleIonsAlongStep(const G4ThreeVector& prePosition, |
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92 | const G4ThreeVector& postPosition, |
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93 | G4double numberOfIonisations); |
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94 | |
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95 | std::vector<G4ThreeVector>* SampleIonsAlongStep(const G4Step*); |
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96 | |
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97 | // compute number of holes in the atom after PostStep interaction |
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98 | G4int ResidualeChargePostStep(const G4ParticleDefinition*, |
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99 | const G4TrackVector* secondary = 0, |
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100 | G4int processSubType = -1); |
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101 | |
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102 | inline G4int ResidualeChargePostStep(const G4Step*); |
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103 | |
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104 | // find mean energies per ionisation |
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105 | G4double FindG4MeanEnergyPerIonPair(const G4Material*); |
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106 | |
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107 | // dump mean energies per ionisation used in run time |
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108 | void DumpMeanEnergyPerIonPair(); |
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109 | |
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110 | // dump G4 list |
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111 | void DumpG4MeanEnergyPerIonPair(); |
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112 | |
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113 | inline void SetVerbose(G4int); |
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114 | |
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115 | private: |
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116 | |
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117 | // hide assignment operator |
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118 | G4ElectronIonPair & operator=(const G4ElectronIonPair &right); |
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119 | G4ElectronIonPair(const G4ElectronIonPair&); |
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120 | |
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121 | G4double FindMeanEnergyPerIonPair(const G4Material*); |
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122 | |
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123 | void Initialise(); |
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124 | |
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125 | const G4ParticleDefinition* gamma; |
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126 | |
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127 | // cash |
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128 | const G4Material* curMaterial; |
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129 | G4double curMeanEnergy; |
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130 | |
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131 | G4int verbose; |
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132 | G4int nMaterials; |
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133 | |
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134 | // list of G4 NIST materials with mean energy per ion defined |
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135 | std::vector<G4double> g4MatData; |
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136 | std::vector<G4String> g4MatNames; |
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137 | |
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138 | }; |
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139 | |
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140 | inline G4double |
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141 | G4ElectronIonPair::MeanNumberOfIonsAlongStep(const G4Step* step) |
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142 | { |
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143 | return MeanNumberOfIonsAlongStep(step->GetTrack()->GetDefinition(), |
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144 | step->GetPreStepPoint()->GetMaterial(), |
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145 | step->GetTotalEnergyDeposit(), |
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146 | step->GetNonIonizingEnergyDeposit()); |
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147 | } |
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148 | |
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149 | inline std::vector<G4ThreeVector>* |
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150 | G4ElectronIonPair::SampleIonsAlongStep(const G4Step* step) |
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151 | { |
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152 | return SampleIonsAlongStep(step->GetPreStepPoint()->GetPosition(), |
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153 | step->GetPostStepPoint()->GetPosition(), |
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154 | MeanNumberOfIonsAlongStep(step)); |
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155 | } |
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156 | |
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157 | inline |
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158 | G4int G4ElectronIonPair::ResidualeChargePostStep(const G4Step* step) |
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159 | { |
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160 | G4int subtype = -1; |
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161 | const G4VProcess* proc = step->GetPostStepPoint()->GetProcessDefinedStep(); |
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162 | if(proc) subtype = proc->GetProcessSubType(); |
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163 | return ResidualeChargePostStep(step->GetTrack()->GetDefinition(), |
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164 | step->GetSecondary(), |
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165 | subtype); |
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166 | } |
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167 | |
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168 | inline void G4ElectronIonPair::SetVerbose(G4int val) |
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169 | { |
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170 | verbose = val; |
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171 | } |
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172 | |
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173 | #endif |
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174 | |
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