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: Tst01ParticleGun.cc,v 1.6 2008/10/24 15:24:16 kurasige 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 | // G4ParticleGun |
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32 | #include "Tst01ParticleGun.hh" |
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33 | #include "Tst01ParticleGunMessenger.hh" |
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34 | #include "G4Event.hh" |
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35 | |
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36 | |
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37 | |
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38 | Tst01ParticleGun::Tst01ParticleGun() |
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39 | :G4ParticleGun() |
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40 | { |
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41 | SetInitialValues(); |
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42 | } |
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43 | |
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44 | |
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45 | Tst01ParticleGun::Tst01ParticleGun(G4int ) |
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46 | :G4ParticleGun(1) |
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47 | { |
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48 | SetInitialValues(); |
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49 | } |
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50 | |
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51 | |
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52 | Tst01ParticleGun::Tst01ParticleGun(G4ParticleDefinition * particleDef, |
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53 | G4int ) |
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54 | :G4ParticleGun(particleDef, 1) |
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55 | { |
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56 | SetInitialValues(); |
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57 | } |
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58 | |
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59 | |
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60 | Tst01ParticleGun::~Tst01ParticleGun() |
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61 | { |
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62 | while (!decay_products.empty()){ |
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63 | G4PrimaryParticle* particle = (G4PrimaryParticle*)(decay_products.back()); |
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64 | decay_products.pop_back(); |
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65 | delete particle; |
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66 | } |
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67 | } |
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68 | |
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69 | Tst01ParticleGun::Tst01ParticleGun(const Tst01ParticleGun &right) |
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70 | : G4ParticleGun() |
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71 | { |
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72 | *this = right; |
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73 | } |
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74 | |
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75 | |
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76 | const Tst01ParticleGun & Tst01ParticleGun::operator=(const Tst01ParticleGun &right) |
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77 | { |
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78 | if ( this == &right) return *this; |
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79 | NumberOfParticlesToBeGenerated = right.NumberOfParticlesToBeGenerated; |
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80 | particle_definition = right.particle_definition; |
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81 | particle_momentum_direction = right.particle_momentum_direction; |
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82 | particle_energy = right.particle_energy; |
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83 | particle_charge = right.particle_charge; |
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84 | particle_polarization = right.particle_polarization; |
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85 | particle_decay_time = right.particle_decay_time; |
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86 | decay_products.clear(); |
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87 | return *this; |
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88 | } |
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89 | |
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90 | void Tst01ParticleGun::GeneratePrimaryVertex(G4Event* evt) |
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91 | { |
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92 | if(particle_definition==NULL) return; |
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93 | |
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94 | // create a new vertex |
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95 | G4PrimaryVertex* vertex = |
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96 | new G4PrimaryVertex(particle_position,particle_time); |
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97 | |
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98 | // create new primaries and set them to the vertex |
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99 | G4double mass = particle_definition->GetPDGMass(); |
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100 | G4double energy = particle_energy + mass; |
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101 | G4double pmom = std::sqrt(energy*energy-mass*mass); |
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102 | G4double px = pmom*particle_momentum_direction.x(); |
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103 | G4double py = pmom*particle_momentum_direction.y(); |
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104 | G4double pz = pmom*particle_momentum_direction.z(); |
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105 | |
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106 | G4PrimaryParticle* particle = |
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107 | new G4PrimaryParticle(particle_definition,px,py,pz); |
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108 | particle->SetMass( mass ); |
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109 | particle->SetCharge( particle_charge ); |
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110 | particle->SetPolarization(particle_polarization.x(), |
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111 | particle_polarization.y(), |
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112 | particle_polarization.z()); |
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113 | if (particle_decay_time>=0.) particle->SetProperTime(particle_decay_time); |
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114 | while (!decay_products.empty()){ |
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115 | G4PrimaryParticle* daughter = (G4PrimaryParticle*)(decay_products.back()); |
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116 | decay_products.pop_back(); |
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117 | particle->SetDaughter(daughter); |
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118 | } |
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119 | vertex->SetPrimary( particle ); |
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120 | |
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121 | evt->AddPrimaryVertex( vertex ); |
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122 | } |
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123 | |
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124 | |
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125 | void Tst01ParticleGun::SetInitialValues() |
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126 | { |
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127 | NumberOfParticlesToBeGenerated = 1; |
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128 | particle_definition = NULL; |
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129 | G4ThreeVector zero; |
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130 | particle_momentum_direction = (G4ParticleMomentum)zero; |
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131 | particle_energy = 0.0; |
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132 | particle_position = zero; |
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133 | particle_time = 0.0; |
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134 | particle_polarization = zero; |
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135 | particle_charge = 0.0; |
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136 | |
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137 | particle_decay_time = -1.0; |
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138 | |
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139 | theMessenger = new Tst01ParticleGunMessenger(this); |
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140 | } |
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141 | |
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142 | |
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143 | |
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144 | |
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145 | |
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146 | |
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148 | |
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149 | |
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150 | |
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151 | |
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