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 | // |
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28 | // =========================================================================== |
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29 | // GEANT4 class source file |
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30 | // |
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31 | // Class: G4IonDEDXScalingICRU73 |
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32 | // |
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33 | // Base class: G4VIonDEDXScalingAlgorithm |
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34 | // |
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35 | // Author: Anton Lechner (Anton.Lechner@cern.ch) |
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36 | // |
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37 | // First implementation: 10. 05. 2009 |
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38 | // |
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39 | // Modifications: |
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40 | // |
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41 | // |
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42 | // Class description: |
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43 | // dE/dx scaling algorithm applied on top of ICRU 73 data (for ions not |
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44 | // covered by the ICRU 73 report) |
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45 | // |
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46 | // Comments: |
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47 | // |
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48 | // =========================================================================== |
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49 | |
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50 | #include "G4IonDEDXScalingICRU73.hh" |
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51 | #include "G4ParticleDefinition.hh" |
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52 | #include "G4ParticleTable.hh" |
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53 | #include "G4Material.hh" |
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54 | |
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55 | |
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56 | // ########################################################################### |
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57 | |
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58 | G4IonDEDXScalingICRU73::G4IonDEDXScalingICRU73( |
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59 | G4int minAtomicNumberIon, |
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60 | G4int maxAtomicNumberIon, |
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61 | G4int atomicNumberReference, |
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62 | G4int massNumberReference) : |
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63 | minAtomicNumber( minAtomicNumberIon ), |
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64 | maxAtomicNumber( maxAtomicNumberIon ), |
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65 | excludedIon( false ), |
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66 | reference( 0 ), |
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67 | atomicNumberRef( atomicNumberReference ), |
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68 | massNumberRef( massNumberReference ) { |
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69 | |
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70 | } |
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71 | |
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72 | // ########################################################################### |
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73 | |
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74 | G4IonDEDXScalingICRU73::~G4IonDEDXScalingICRU73() { |
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75 | |
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76 | } |
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77 | |
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78 | // ########################################################################### |
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79 | |
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80 | void G4IonDEDXScalingICRU73::CreateReferenceParticle() { |
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81 | |
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82 | |
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83 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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84 | |
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85 | G4double excitationEnergy = 0.0; |
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86 | |
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87 | reference = |
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88 | particleTable -> GetIon(atomicNumberRef, massNumberRef, excitationEnergy); |
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89 | |
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90 | massRef = reference -> GetPDGMass(); |
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91 | chargeRef = reference -> GetPDGCharge(); |
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92 | |
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93 | atomicNumberRefPow23 = std::pow((double)atomicNumberRef, (double)2./3.); |
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94 | } |
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95 | |
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96 | |
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97 | // ########################################################################### |
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98 | |
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99 | |
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100 | G4double G4IonDEDXScalingICRU73::ScalingFactorEnergy ( |
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101 | const G4ParticleDefinition* particle) { // Projectile (ion) |
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102 | |
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103 | G4double factor = 1.0; |
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104 | |
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105 | UpdateCache(particle); |
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106 | |
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107 | if(! excludedIon && |
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108 | cacheAtomicNumber >= minAtomicNumber && |
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109 | cacheAtomicNumber <= maxAtomicNumber) { |
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110 | |
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111 | if(reference == 0) CreateReferenceParticle(); |
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112 | |
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113 | factor = cacheMassNumber * (massRef / cacheMass) / massNumberRef; |
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114 | } |
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115 | |
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116 | return factor; |
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117 | } |
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118 | |
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119 | // ########################################################################### |
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120 | |
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121 | G4double G4IonDEDXScalingICRU73::ScalingFactorDEDX( |
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122 | const G4ParticleDefinition* particle, // Projectile (ion) |
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123 | const G4Material*, // Target material |
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124 | G4double kineticEnergy) { // Kinetic energy |
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125 | |
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126 | G4double factor = 1.0; |
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127 | |
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128 | UpdateCache(particle); |
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129 | |
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130 | if(! excludedIon && |
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131 | cacheAtomicNumber >= minAtomicNumber && |
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132 | cacheAtomicNumber <= maxAtomicNumber) { |
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133 | |
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134 | if(reference == 0) CreateReferenceParticle(); |
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135 | |
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136 | G4double equilibriumCharge = EquilibriumCharge(cacheMass, |
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137 | cacheCharge, |
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138 | cacheAtomicNumberPow23, |
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139 | kineticEnergy); |
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140 | |
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141 | G4double scaledKineticEnergy = kineticEnergy * (massRef / cacheMass); |
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142 | |
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143 | G4double equilibriumChargeRef = EquilibriumCharge(massRef, |
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144 | chargeRef, |
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145 | atomicNumberRefPow23, |
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146 | scaledKineticEnergy); |
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147 | |
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148 | factor = equilibriumCharge * equilibriumCharge/ |
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149 | ( equilibriumChargeRef * equilibriumChargeRef ); |
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150 | } |
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151 | |
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152 | return factor; |
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153 | } |
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154 | |
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155 | // ########################################################################### |
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156 | |
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157 | G4int G4IonDEDXScalingICRU73::AtomicNumberBaseIon( |
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158 | G4int atomicNumberIon, // Atomic number of ion |
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159 | const G4Material*) { // Target material |
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160 | |
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161 | G4int atomicNumber = atomicNumberIon; |
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162 | |
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163 | if(atomicNumberIon >= minAtomicNumber && |
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164 | atomicNumberIon <= maxAtomicNumber) { |
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165 | |
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166 | G4bool ionIsExcluded = false; |
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167 | size_t nmb = excludedAtomicNumbers.size(); |
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168 | |
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169 | for(size_t i = 0; i < nmb; i++) { |
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170 | |
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171 | if(atomicNumberIon == excludedAtomicNumbers[i]) |
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172 | ionIsExcluded = true; |
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173 | } |
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174 | |
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175 | if(! ionIsExcluded) { |
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176 | if(reference == 0) CreateReferenceParticle(); |
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177 | |
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178 | atomicNumber = atomicNumberRef; |
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179 | } |
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180 | } |
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181 | |
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182 | return atomicNumber; |
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183 | } |
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184 | |
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185 | // ########################################################################### |
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