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G4Channeling.hh
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the newest version in sPHENIX GitHub for file G4Channeling.hh
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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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#ifndef G4Channeling_h
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#define G4Channeling_h 1
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#include "
G4ios.hh
"
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#include "
globals.hh
"
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#include "
G4VDiscreteProcess.hh
"
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#include "
G4ChannelingMaterialData.hh
"
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#include "
G4ExtendedMaterial.hh
"
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#include "
G4LogicalCrystalVolume.hh
"
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class
G4ChannelingTrackData
;
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class
G4Channeling
:
public
G4VDiscreteProcess
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{
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public
:
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G4Channeling
();
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virtual
~G4Channeling
();
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virtual
G4VParticleChange
*
PostStepDoIt
(
const
G4Track
&,
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const
G4Step
&);
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virtual
G4bool
IsApplicable
(
const
G4ParticleDefinition
& aPD){
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return
(aPD.
GetPDGCharge
() != 0.);
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};
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virtual
void
BuildPhysicsTable
(
const
G4ParticleDefinition
&){;};
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protected
:
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virtual
G4double
GetMeanFreePath
(
const
G4Track
&,
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G4double
,
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G4ForceCondition
*);
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private
:
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G4ParticleDefinition
*
GetParticleDefinition
(
const
G4Track
& aTrack){
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return
const_cast<
G4ParticleDefinition
*
>
(aTrack.
GetParticleDefinition
());
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}
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private
:
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G4StepPoint
*
GetPre
(
const
G4Track
& aTrack){
return
aTrack.
GetStep
()->
GetPreStepPoint
();}
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G4StepPoint
*
GetPost
(
const
G4Track
& aTrack){
return
aTrack.
GetStep
()->
GetPostStepPoint
();}
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private
:
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G4ChannelingMaterialData
*
GetMatData
(
const
G4Track
& aTrack){
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G4LogicalVolume
* aLV = aTrack.
GetVolume
()->
GetLogicalVolume
();
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if
(aLV->
IsExtended
() ==
true
){
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G4ExtendedMaterial
* aEM = (
G4ExtendedMaterial
*) aTrack.
GetVolume
()->
GetLogicalVolume
()->
GetMaterial
();
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return
(
G4ChannelingMaterialData
*) aEM->
RetrieveExtension
(
"channeling"
);
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}
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else
{
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return
nullptr
;
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}
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}
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//----------------------------------------
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// Functions for the calculations of
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// parameters related to channeling
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//----------------------------------------
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public
:
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G4double
GetCriticalAngle
(
const
G4Track
& aTrack){
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return
std::sqrt(2.0*
GetMatData
(aTrack)->GetPot()->GetMaxMin()
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/
GetPre
(aTrack)->GetTotalEnergy());}
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G4double
GetOscillationPeriod
(
const
G4Track
& aTrack){
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return
(
CLHEP::pi
*
GetMatData
(aTrack)->GetPot()->GetIntSp(0)
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/
GetCriticalAngle
(aTrack));
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}
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//----------------------------------------
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// Channeling Auxiliary Track Information
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//----------------------------------------
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private
:
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G4int
fChannelingID
;
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G4ChannelingTrackData
*
GetTrackData
(
const
G4Track
&);
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//----------------------------------------
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// Variables for the integration
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// of the particle trajectory
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//----------------------------------------
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private
:
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G4bool
UpdateIntegrationStep
(
const
G4Track
&,
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G4ThreeVector
&,
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G4double
&);
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G4bool
UpdateParameters
(
const
G4Track
&);
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void
GetEF
(
const
G4Track
&,
G4ThreeVector
&,
G4ThreeVector
&);
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public
:
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void
PosToLattice
(
G4StepPoint
*
step
,
G4ThreeVector
&);
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public
:
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G4double
GetTransverseVariationMax
() {
return
fTransverseVariationMax
;};
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void
SetTransverseVariationMax
(
G4double
aDouble) {
fTransverseVariationMax
= aDouble;};
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G4double
GetTimeStepMin
() {
return
fTimeStepMin
;};
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void
SetTimeStepMin
(
G4double
aDouble) {
fTimeStepMin
= aDouble;};
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private
:
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G4double
fTimeStepMin
;
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G4double
fTimeStepMax
;
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G4double
fTransverseVariationMax
;
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const
G4ThreeVector
k010
;
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G4ThreeVector
fSpin
;
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};
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#endif
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geant4
tree
geant4-10.6-release
source
processes
solidstate
channeling
include
G4Channeling.hh
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:52
using
1.8.2 with
ECCE GitHub integration