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: G4FieldTrack.icc,v 1.21 2006/11/13 18:24:35 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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29 | // |
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30 | // ------------------------------------------------------------------- |
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31 | |
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32 | // Implementation methods for the embedded class G4ChargeState |
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33 | // ---------------------------- |
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34 | inline G4FieldTrack:: |
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35 | G4ChargeState::G4ChargeState(G4double charge, |
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36 | G4double magnetic_dipole_moment, |
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37 | G4double electric_dipole_moment, |
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38 | G4double magnetic_charge) |
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39 | { |
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40 | fCharge= charge; |
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41 | fMagn_dipole= magnetic_dipole_moment; |
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42 | fElec_dipole= electric_dipole_moment; |
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43 | fMagneticCharge= magnetic_charge; |
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44 | } |
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45 | |
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46 | inline G4FieldTrack:: |
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47 | G4ChargeState::G4ChargeState( |
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48 | const G4FieldTrack::G4ChargeState& right ) |
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49 | { |
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50 | fCharge= right.fCharge; |
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51 | fMagn_dipole= right.fMagn_dipole; |
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52 | fElec_dipole= right.fElec_dipole; |
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53 | fMagneticCharge= right.fMagneticCharge; |
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54 | } |
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55 | |
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56 | inline void |
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57 | G4FieldTrack::InitialiseSpin( const G4ThreeVector& Spin ) |
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58 | { |
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59 | // static G4ThreeVector ZeroVec(0.0, 0.0, 0.0); |
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60 | |
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61 | fSpin = Spin; |
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62 | // New Member ?? G4bool fHasSpin; |
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63 | // fHasSpin = (fSpin != ZeroVec); |
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64 | } |
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65 | |
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66 | inline void G4FieldTrack:: |
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67 | G4ChargeState::SetChargeAndMoments(G4double charge, |
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68 | G4double magnetic_dipole_moment, |
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69 | G4double electric_dipole_moment, |
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70 | G4double magnetic_charge ) |
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71 | // Revise the charge and potentially all moments. |
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72 | // By default do not change mdm, edm, mag charge. |
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73 | { |
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74 | fCharge= charge; |
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75 | if( magnetic_dipole_moment < DBL_MAX) fMagn_dipole= magnetic_dipole_moment; |
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76 | if( electric_dipole_moment < DBL_MAX) fElec_dipole= electric_dipole_moment; |
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77 | if( magnetic_charge < DBL_MAX) fMagneticCharge= magnetic_charge; |
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78 | } |
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79 | |
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80 | inline |
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81 | G4FieldTrack::G4FieldTrack( const G4FieldTrack& rStVec ) |
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82 | : fDistanceAlongCurve( rStVec.fDistanceAlongCurve), |
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83 | fKineticEnergy( rStVec.fKineticEnergy ), |
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84 | fRestMass_c2( rStVec.fRestMass_c2), |
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85 | fLabTimeOfFlight( rStVec.fLabTimeOfFlight ), |
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86 | fProperTimeOfFlight( rStVec.fProperTimeOfFlight ), |
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87 | // fMomentumModulus( rStVec.fMomentumModulus ), |
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88 | fSpin( rStVec.fSpin ), |
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89 | fMomentumDir( rStVec.fMomentumDir ), |
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90 | fChargeState( rStVec.fChargeState ) |
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91 | { |
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92 | SixVector[0]= rStVec.SixVector[0]; |
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93 | SixVector[1]= rStVec.SixVector[1]; |
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94 | SixVector[2]= rStVec.SixVector[2]; |
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95 | SixVector[3]= rStVec.SixVector[3]; |
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96 | SixVector[4]= rStVec.SixVector[4]; |
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97 | SixVector[5]= rStVec.SixVector[5]; |
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98 | |
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99 | // fpChargeState= new G4ChargeState( *rStVec.fpChargeState ); |
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100 | // Can share charge state only when using handles etc |
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101 | // fpChargeState = rStVec.fpChargeState; |
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102 | } |
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103 | |
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104 | inline |
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105 | G4FieldTrack::~G4FieldTrack() |
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106 | { |
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107 | // delete fpChargeState; |
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108 | } |
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109 | |
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110 | inline G4FieldTrack& |
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111 | G4FieldTrack::SetCurvePnt(const G4ThreeVector& pPosition, |
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112 | const G4ThreeVector& pMomentum, |
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113 | G4double s_curve ) |
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114 | { |
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115 | SixVector[0] = pPosition.x(); |
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116 | SixVector[1] = pPosition.y(); |
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117 | SixVector[2] = pPosition.z(); |
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118 | |
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119 | SixVector[3] = pMomentum.x(); |
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120 | SixVector[4] = pMomentum.y(); |
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121 | SixVector[5] = pMomentum.z(); |
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122 | |
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123 | fMomentumDir = pMomentum.unit(); |
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124 | |
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125 | fDistanceAlongCurve= s_curve; |
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126 | |
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127 | return *this; |
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128 | } |
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129 | |
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130 | inline |
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131 | G4ThreeVector G4FieldTrack::GetPosition() const |
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132 | { |
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133 | G4ThreeVector myPosition( SixVector[0], SixVector[1], SixVector[2] ); |
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134 | return myPosition; |
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135 | } |
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136 | |
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137 | inline |
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138 | void G4FieldTrack::SetPosition( G4ThreeVector pPosition) |
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139 | { |
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140 | SixVector[0] = pPosition.x(); |
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141 | SixVector[1] = pPosition.y(); |
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142 | SixVector[2] = pPosition.z(); |
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143 | } |
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144 | |
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145 | inline |
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146 | const G4ThreeVector& G4FieldTrack::GetMomentumDir() const |
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147 | { |
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148 | // G4ThreeVector myMomentum( SixVector[3], SixVector[4], SixVector[5] ); |
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149 | // return myVelocity; |
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150 | return fMomentumDir; |
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151 | } |
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152 | |
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153 | inline |
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154 | G4ThreeVector G4FieldTrack::GetMomentumDirection() const |
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155 | { |
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156 | return fMomentumDir; |
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157 | } |
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158 | |
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159 | inline |
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160 | G4double G4FieldTrack::GetCurveLength() const |
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161 | { |
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162 | return fDistanceAlongCurve; |
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163 | } |
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164 | |
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165 | inline |
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166 | void G4FieldTrack::SetCurveLength(G4double nCurve_s) |
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167 | { |
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168 | fDistanceAlongCurve= nCurve_s; |
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169 | } |
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170 | |
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171 | inline |
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172 | G4double G4FieldTrack::GetKineticEnergy() const |
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173 | { |
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174 | return fKineticEnergy; |
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175 | } |
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176 | |
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177 | inline |
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178 | void G4FieldTrack::SetKineticEnergy(G4double newKinEnergy) |
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179 | { |
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180 | fKineticEnergy=newKinEnergy; |
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181 | } |
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182 | |
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183 | inline |
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184 | G4ThreeVector G4FieldTrack::GetSpin() const |
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185 | { |
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186 | return fSpin; |
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187 | } |
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188 | |
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189 | inline |
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190 | void G4FieldTrack::SetSpin(G4ThreeVector nSpin) |
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191 | { |
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192 | fSpin=nSpin; |
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193 | } |
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194 | |
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195 | inline |
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196 | G4double G4FieldTrack::GetLabTimeOfFlight() const |
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197 | { |
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198 | return fLabTimeOfFlight; |
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199 | } |
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200 | |
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201 | inline |
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202 | void G4FieldTrack::SetLabTimeOfFlight(G4double nTOF) |
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203 | { |
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204 | fLabTimeOfFlight=nTOF; |
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205 | } |
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206 | |
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207 | inline |
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208 | G4double G4FieldTrack::GetProperTimeOfFlight() const |
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209 | { |
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210 | return fProperTimeOfFlight; |
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211 | } |
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212 | |
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213 | inline |
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214 | void G4FieldTrack::SetProperTimeOfFlight(G4double nTOF) |
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215 | { |
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216 | fProperTimeOfFlight=nTOF; |
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217 | } |
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218 | |
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219 | inline |
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220 | void G4FieldTrack::SetMomentumDir(G4ThreeVector newMomDir) |
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221 | { |
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222 | fMomentumDir= newMomDir; |
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223 | } |
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224 | |
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225 | inline |
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226 | G4ThreeVector G4FieldTrack::GetMomentum() const |
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227 | { |
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228 | return G4ThreeVector( SixVector[3], SixVector[4], SixVector[5] ); |
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229 | } |
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230 | |
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231 | inline |
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232 | void G4FieldTrack::SetMomentum(G4ThreeVector pMomentum) |
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233 | { |
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234 | SixVector[3] = pMomentum.x(); |
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235 | SixVector[4] = pMomentum.y(); |
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236 | SixVector[5] = pMomentum.z(); |
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237 | |
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238 | fMomentumDir = pMomentum.unit(); |
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239 | } |
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240 | |
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241 | inline |
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242 | G4double G4FieldTrack::GetCharge() const |
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243 | { |
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244 | return fChargeState.GetCharge(); |
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245 | } |
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246 | |
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247 | // Dump values to array |
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248 | // |
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249 | // note that momentum direction is not saved |
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250 | |
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251 | inline |
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252 | void G4FieldTrack::DumpToArray(G4double valArr[ncompSVEC] ) const |
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253 | { |
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254 | valArr[0]=SixVector[0]; |
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255 | valArr[1]=SixVector[1]; |
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256 | valArr[2]=SixVector[2]; |
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257 | valArr[3]=SixVector[3]; |
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258 | valArr[4]=SixVector[4]; |
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259 | valArr[5]=SixVector[5]; |
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260 | |
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261 | G4ThreeVector Momentum(valArr[3],valArr[4],valArr[5]); |
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262 | |
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263 | // G4double mass_in_Kg; |
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264 | // mass_in_Kg = fEnergy / velocity_mag_sq * (1-velocity_mag_sq/c_squared); |
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265 | // valArr[6]= mass_in_Kg; |
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266 | |
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267 | // The following components may or may not be integrated. |
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268 | valArr[6]= fKineticEnergy; |
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269 | |
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270 | // valArr[6]=fEnergy; // When it is integrated over, do this ... |
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271 | valArr[7]=fLabTimeOfFlight; |
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272 | valArr[8]=fProperTimeOfFlight; |
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273 | valArr[9]=fSpin.x(); |
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274 | valArr[10]=fSpin.y(); |
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275 | valArr[11]=fSpin.z(); |
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276 | // valArr[13]=fMomentumDir.x(); |
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277 | // valArr[14]=fMomentumDir.y(); |
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278 | // valArr[15]=fMomentumDir.z(); |
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279 | // valArr[]=fDistanceAlongCurve; |
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280 | } |
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281 | |
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282 | // Load values from array |
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283 | // |
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284 | // note that momentum direction must-be/is normalised |
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285 | |
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286 | inline |
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287 | void G4FieldTrack::LoadFromArray(const G4double valArrIn[ncompSVEC], G4int noVarsIntegrated) |
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288 | { |
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289 | G4int i; |
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290 | |
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291 | // Fill the variables not integrated with zero -- so it's clear !! |
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292 | static G4double valArr[ncompSVEC]; |
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293 | for( i=0; i<noVarsIntegrated; i++){ |
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294 | valArr[i]= valArrIn[i]; |
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295 | } |
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296 | for( i=noVarsIntegrated; i<ncompSVEC; i++) { |
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297 | valArr[i]= 0.0; |
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298 | } |
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299 | |
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300 | SixVector[0]=valArr[0]; |
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301 | SixVector[1]=valArr[1]; |
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302 | SixVector[2]=valArr[2]; |
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303 | SixVector[3]=valArr[3]; |
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304 | SixVector[4]=valArr[4]; |
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305 | SixVector[5]=valArr[5]; |
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306 | |
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307 | G4ThreeVector Momentum(valArr[3],valArr[4],valArr[5]); |
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308 | |
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309 | G4double momentum_square= Momentum.mag2(); |
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310 | fMomentumDir= Momentum.unit(); |
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311 | |
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312 | fKineticEnergy = momentum_square / |
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313 | (std::sqrt(momentum_square+fRestMass_c2*fRestMass_c2) |
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314 | + fRestMass_c2 ); |
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315 | // The above equation is stable for small and large momenta |
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316 | |
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317 | // The following components may or may not be |
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318 | // integrated over -- integration is optional |
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319 | // fKineticEnergy= valArr[6]; |
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320 | |
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321 | fLabTimeOfFlight=valArr[7]; |
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322 | fProperTimeOfFlight=valArr[8]; |
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323 | fSpin=G4ThreeVector(valArr[9],valArr[10],valArr[11]); |
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324 | // fMomentumDir=G4ThreeVector(valArr[13],valArr[14],valArr[15]); |
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325 | // fDistanceAlongCurve= valArr[]; |
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326 | } |
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327 | |
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328 | inline |
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329 | G4FieldTrack & G4FieldTrack::operator = ( const G4FieldTrack& rStVec ) |
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330 | { |
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331 | if (&rStVec == this) return *this; |
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332 | |
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333 | SixVector[0]= rStVec.SixVector[0]; |
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334 | SixVector[1]= rStVec.SixVector[1]; |
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335 | SixVector[2]= rStVec.SixVector[2]; |
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336 | SixVector[3]= rStVec.SixVector[3]; |
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337 | SixVector[4]= rStVec.SixVector[4]; |
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338 | SixVector[5]= rStVec.SixVector[5]; |
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339 | SetCurveLength( rStVec.GetCurveLength() ); |
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340 | |
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341 | fKineticEnergy= rStVec.fKineticEnergy; |
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342 | SetLabTimeOfFlight( rStVec.GetLabTimeOfFlight() ); |
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343 | SetProperTimeOfFlight( rStVec.GetProperTimeOfFlight() ); |
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344 | SetSpin( rStVec.GetSpin() ); |
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345 | // SetMomentumModulus( rStVec.GetMomentumModulus()); |
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346 | SetMomentumDir( rStVec.fMomentumDir ); |
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347 | |
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348 | fChargeState= rStVec.fChargeState; |
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349 | // (*fpChargeState)= *(rStVec.fpChargeState); |
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350 | // fpChargeState= rStVec.fpChargeState; // Handles!! |
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351 | return *this; |
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352 | } |
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353 | |
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354 | void |
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355 | G4FieldTrack::UpdateFourMomentum( G4double kineticEnergy, |
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356 | const G4ThreeVector& momentumDirection ) |
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357 | { |
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358 | G4double momentum_mag = std::sqrt(kineticEnergy*kineticEnergy |
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359 | +2.0*fRestMass_c2*kineticEnergy); |
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360 | G4ThreeVector momentumVector= momentum_mag * momentumDirection; |
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361 | |
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362 | SetMomentum( momentumVector ); // Also sets direction (from unit) |
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363 | fMomentumDir= momentumDirection; |
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364 | fKineticEnergy= kineticEnergy; |
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365 | } |
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366 | |
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367 | void G4FieldTrack::UpdateState( const G4ThreeVector& position, |
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368 | G4double laboratoryTimeOfFlight, |
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369 | const G4ThreeVector& momentumDirection, |
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370 | G4double kineticEnergy |
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371 | ) |
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372 | { |
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373 | // SetCurvePnt( position, momentumVector, s_curve=0.0); |
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374 | SetPosition( position); |
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375 | fLabTimeOfFlight= laboratoryTimeOfFlight; |
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376 | fDistanceAlongCurve= 0.0; |
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377 | |
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378 | UpdateFourMomentum( kineticEnergy, momentumDirection); |
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379 | } |
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