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G4FieldTrackUpdator.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4FieldTrackUpdator.cc
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//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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// M. Asai - first implementation Apr/28/2006
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//
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//---------------------------------------------------------------
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//
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// G4FieldTrackUpdator.cc
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//
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//---------------------------------------------------------------
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#include "
globals.hh
"
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#include "
G4FieldTrackUpdator.hh
"
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#include "
G4ThreeVector.hh
"
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#include "
G4Track.hh
"
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#include "
G4DynamicParticle.hh
"
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#include "
G4TrackStatus.hh
"
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#include "
G4FieldTrack.hh
"
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G4FieldTrack
*
G4FieldTrackUpdator::CreateFieldTrack
(
const
G4Track
* trk)
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{
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G4FieldTrack
* ftrk =
new
G4FieldTrack
(
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trk->
GetPosition
(),
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trk->
GetGlobalTime
(),
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trk->
GetMomentumDirection
(),
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trk->
GetKineticEnergy
(),
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trk->
GetDynamicParticle
()->
GetMass
(),
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trk->
GetDynamicParticle
()->
GetCharge
(),
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trk->
GetDynamicParticle
()->
GetPolarization
(),
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0.0
// magnetic dipole moment to be implemented
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);
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return
ftrk;
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}
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void
G4FieldTrackUpdator::Update
(
G4FieldTrack
* ftrk,
const
G4Track
* trk)
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{
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const
G4DynamicParticle
* ptDynamicParticle= trk->
GetDynamicParticle
();
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// The following properties must be updated 1) for each new track, and
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ftrk->
SetRestMass
(ptDynamicParticle->
GetMass
());
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// 2) Since ion can lose/gain electrons, this must be done at every step
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ftrk->
UpdateState
(
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trk->
GetPosition
(),
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trk->
GetGlobalTime
(),
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trk->
GetMomentumDirection
(),
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trk->
GetKineticEnergy
()
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);
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#ifdef G4CHECK
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if
( ( trk->
GetMomentum
() - ftrk->
GetMomentum
()).mag2() > 1.e-16 * trk->
GetMomentum
().
mag2
() ){
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G4cerr
<<
"ERROR> G4FieldTrackUpdator sees *Disagreement* in momentum "
<<
G4endl
;
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G4cout
<<
" FTupdator: Tracking Momentum= "
<< trk->
GetMomentum
() <<
G4endl
;
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G4cout
<<
" FTupdator: FldTrack Momentum= "
<< ftrk->
GetMomentum
() <<
G4endl
;
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G4cout
<<
" FTupdator: FldTrack-Tracking= "
<< ftrk->
GetMomentum
() - trk->
GetMomentum
() <<
G4endl
;
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}
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#endif
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ftrk->
SetProperTimeOfFlight
(trk->
GetProperTime
());
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ftrk->
SetChargeAndMoments
( ptDynamicParticle->
GetCharge
(),
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ptDynamicParticle->
GetMagneticMoment
());
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ftrk->
SetPDGSpin
( ptDynamicParticle->
GetParticleDefinition
()->
GetPDGSpin
() );
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// The charge can change during tracking
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ftrk->
SetSpin
( ptDynamicParticle->
GetPolarization
() );
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}
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geant4
tree
geant4-10.6-release
source
track
src
G4FieldTrackUpdator.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:53
using
1.8.2 with
ECCE GitHub integration