[831] | 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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[1337] | 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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[831] | 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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