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 | // $Id: G4UnknownDecay.cc,v 1.6 2007/12/15 12:29:16 kurasige Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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29 | // |
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30 | // |
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31 | // -------------------------------------------------------------- |
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32 | // GEANT 4 class implementation file |
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33 | // |
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34 | // ------------------------------------------------------------ |
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35 | // |
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36 | |
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37 | #include "G4UnknownDecay.hh" |
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38 | #include "G4DynamicParticle.hh" |
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39 | #include "G4DecayProducts.hh" |
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40 | #include "G4PhysicsLogVector.hh" |
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41 | #include "G4ParticleChangeForDecay.hh" |
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42 | #include "G4DecayProcessType.hh" |
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43 | |
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44 | |
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45 | // constructor |
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46 | G4UnknownDecay::G4UnknownDecay(const G4String& processName) |
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47 | :G4VDiscreteProcess(processName, fDecay), |
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48 | verboseLevel(1), |
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49 | HighestValue(20.0) |
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50 | { |
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51 | // set Process Sub Type |
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52 | SetProcessSubType(static_cast<int>(DECAY_Unknown)); |
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53 | |
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54 | #ifdef G4VERBOSE |
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55 | if (GetVerboseLevel()>1) { |
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56 | G4cout << "G4UnknownDecay constructor " << " Name:" << processName << G4endl; |
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57 | } |
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58 | #endif |
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59 | pParticleChange = &fParticleChangeForDecay; |
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60 | } |
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61 | |
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62 | G4UnknownDecay::~G4UnknownDecay() |
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63 | { |
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64 | } |
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65 | |
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66 | G4bool G4UnknownDecay::IsApplicable(const G4ParticleDefinition& aParticleType) |
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67 | { |
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68 | if(aParticleType.GetParticleName()=="unknown") return true; |
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69 | return false; |
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70 | } |
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71 | |
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72 | G4double G4UnknownDecay::GetMeanFreePath(const G4Track& /*aTrack*/,G4double, G4ForceCondition*) |
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73 | { |
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74 | return DBL_MIN; |
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75 | } |
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76 | |
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77 | void G4UnknownDecay::BuildPhysicsTable(const G4ParticleDefinition&) |
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78 | { |
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79 | return; |
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80 | } |
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81 | |
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82 | G4VParticleChange* G4UnknownDecay::DecayIt(const G4Track& aTrack, const G4Step& ) |
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83 | { |
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84 | // The DecayIt() method returns by pointer a particle-change object. |
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85 | // Units are expressed in GEANT4 internal units. |
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86 | |
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87 | // Initialize ParticleChange |
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88 | // all members of G4VParticleChange are set to equal to |
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89 | // corresponding member in G4Track |
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90 | fParticleChangeForDecay.Initialize(aTrack); |
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91 | |
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92 | // get particle |
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93 | const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle(); |
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94 | |
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95 | //check if thePreAssignedDecayProducts exists |
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96 | const G4DecayProducts* o_products = (aParticle->GetPreAssignedDecayProducts()); |
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97 | G4bool isPreAssigned = (o_products != 0); |
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98 | G4DecayProducts* products = 0; |
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99 | |
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100 | if (!isPreAssigned ){ |
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101 | fParticleChangeForDecay.SetNumberOfSecondaries(0); |
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102 | // Kill the parent particle |
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103 | fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ; |
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104 | fParticleChangeForDecay.ProposeLocalEnergyDeposit(0.0); |
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105 | |
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106 | ClearNumberOfInteractionLengthLeft(); |
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107 | return &fParticleChangeForDecay ; |
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108 | } |
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109 | |
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110 | // copy decay products |
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111 | products = new G4DecayProducts(*o_products); |
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112 | |
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113 | // get parent particle information ................................... |
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114 | G4double ParentEnergy = aParticle->GetTotalEnergy(); |
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115 | G4double ParentMass = aParticle->GetMass(); |
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116 | if (ParentEnergy < ParentMass) { |
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117 | ParentEnergy = ParentMass; |
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118 | #ifdef G4VERBOSE |
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119 | if (GetVerboseLevel()>1) { |
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120 | G4cout << "G4UnknownDecay::DoIt : Total Energy is less than its mass" << G4endl; |
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121 | G4cout << " Particle: " << aParticle->GetDefinition()->GetParticleName(); |
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122 | G4cout << " Energy:" << ParentEnergy/MeV << "[MeV]"; |
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123 | G4cout << " Mass:" << ParentMass/MeV << "[MeV]"; |
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124 | G4cout << G4endl; |
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125 | } |
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126 | #endif |
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127 | } |
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128 | G4ThreeVector ParentDirection(aParticle->GetMomentumDirection()); |
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129 | |
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130 | G4double energyDeposit = 0.0; |
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131 | G4double finalGlobalTime = aTrack.GetGlobalTime(); |
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132 | //boost all decay products to laboratory frame |
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133 | //if the particle has traveled |
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134 | if(aParticle->GetPreAssignedDecayProperTime()>0.) { |
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135 | products->Boost( ParentEnergy, ParentDirection); |
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136 | } |
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137 | |
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138 | //add products in fParticleChangeForDecay |
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139 | G4int numberOfSecondaries = products->entries(); |
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140 | fParticleChangeForDecay.SetNumberOfSecondaries(numberOfSecondaries); |
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141 | #ifdef G4VERBOSE |
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142 | if (GetVerboseLevel()>1) { |
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143 | G4cout << "G4UnknownDecay::DoIt : Decay vertex :"; |
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144 | G4cout << " Time: " << finalGlobalTime/ns << "[ns]"; |
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145 | G4cout << " X:" << (aTrack.GetPosition()).x() /cm << "[cm]"; |
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146 | G4cout << " Y:" << (aTrack.GetPosition()).y() /cm << "[cm]"; |
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147 | G4cout << " Z:" << (aTrack.GetPosition()).z() /cm << "[cm]"; |
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148 | G4cout << G4endl; |
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149 | G4cout << "G4UnknownDecay::DoIt : decay products in Lab. Frame" << G4endl; |
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150 | products->DumpInfo(); |
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151 | } |
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152 | #endif |
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153 | G4int index; |
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154 | G4ThreeVector currentPosition; |
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155 | const G4TouchableHandle thand = aTrack.GetTouchableHandle(); |
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156 | for (index=0; index < numberOfSecondaries; index++) |
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157 | { |
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158 | // get current position of the track |
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159 | currentPosition = aTrack.GetPosition(); |
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160 | // create a new track object |
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161 | G4Track* secondary = new G4Track( products->PopProducts(), |
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162 | finalGlobalTime , |
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163 | currentPosition ); |
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164 | // switch on good for tracking flag |
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165 | secondary->SetGoodForTrackingFlag(); |
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166 | secondary->SetTouchableHandle(thand); |
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167 | // add the secondary track in the List |
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168 | fParticleChangeForDecay.AddSecondary(secondary); |
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169 | } |
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170 | delete products; |
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171 | |
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172 | // Kill the parent particle |
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173 | fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ; |
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174 | fParticleChangeForDecay.ProposeLocalEnergyDeposit(energyDeposit); |
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175 | fParticleChangeForDecay.ProposeGlobalTime( finalGlobalTime ); |
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176 | // reset NumberOfInteractionLengthLeft |
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177 | ClearNumberOfInteractionLengthLeft(); |
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178 | |
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179 | return &fParticleChangeForDecay ; |
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180 | } |
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181 | |
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182 | |
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183 | |
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184 | |
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185 | |
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186 | |
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