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G4PhononScattering.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4PhononScattering.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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// 20131111 Add verbose output for MFP calculation
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#include "
G4PhononScattering.hh
"
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#include "
G4LatticePhysical.hh
"
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#include "
G4PhononPolarization.hh
"
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#include "
G4PhononLong.hh
"
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#include "
G4PhononTrackMap.hh
"
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#include "
G4PhononTransFast.hh
"
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#include "
G4PhononTransSlow.hh
"
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#include "
G4PhysicalConstants.hh
"
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#include "
G4RandomDirection.hh
"
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#include "
G4Step.hh
"
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#include "
G4SystemOfUnits.hh
"
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#include "
G4VParticleChange.hh
"
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#include "
Randomize.hh
"
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G4PhononScattering::G4PhononScattering
(
const
G4String
& aName)
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:
G4VPhononProcess
(aName) {;}
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G4PhononScattering::~G4PhononScattering
() {;}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double
G4PhononScattering::GetMeanFreePath
(
const
G4Track
& aTrack,
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G4double
/*previousStepSize*/
,
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G4ForceCondition
*
condition
) {
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//Dynamical constants retrieved from PhysicalLattice
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G4double
B
=
theLattice
->
GetScatteringConstant
();
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G4double
Eoverh = aTrack.
GetKineticEnergy
()/
h_Planck
;
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//Calculate mean free path
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G4double
mfp
= aTrack.
GetVelocity
()/(Eoverh*Eoverh*Eoverh*Eoverh*
B
);
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if
(
verboseLevel
> 1)
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G4cout
<<
"G4PhononScattering::GetMeanFreePath = "
<< mfp <<
G4endl
;
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*condition =
NotForced
;
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return
mfp
;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4VParticleChange
*
G4PhononScattering::PostStepDoIt
(
const
G4Track
& aTrack,
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const
G4Step
& aStep) {
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G4StepPoint
* postStepPoint = aStep.
GetPostStepPoint
();
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if
(postStepPoint->
GetStepStatus
()==
fGeomBoundary
) {
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return
G4VDiscreteProcess::PostStepDoIt
(aTrack,aStep);
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}
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//Initialize particle change
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aParticleChange
.
Initialize
(aTrack);
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//randomly generate a new direction and polarization state
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G4ThreeVector
newDir =
G4RandomDirection
();
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G4int
polarization =
ChoosePolarization
(
theLattice
->
GetLDOS
(),
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theLattice
->
GetSTDOS
(),
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theLattice
->
GetFTDOS
());
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// Generate the new track after scattering
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// FIXME: If polarization state is the same, just step the track!
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G4Track
* sec =
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CreateSecondary
(polarization, newDir, aTrack.
GetKineticEnergy
());
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aParticleChange
.
SetNumberOfSecondaries
(1);
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aParticleChange
.
AddSecondary
(sec);
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// Scattered phonon replaces current track
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aParticleChange
.
ProposeEnergy
(0.);
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aParticleChange
.
ProposeTrackStatus
(
fStopAndKill
);
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return
&
aParticleChange
;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
geant4
tree
geant4-10.6-release
source
processes
solidstate
phonon
src
G4PhononScattering.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:52
using
1.8.2 with
ECCE GitHub integration