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G4VMscModel.cc
Go to the documentation of this file.
Or view
the newest version in sPHENIX GitHub for file G4VMscModel.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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//
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// GEANT4 Class file
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//
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//
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// File name: G4VMscModel
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//
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// Author: Vladimir Ivanchenko
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//
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// Creation date: 07.03.2008
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//
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// Modifications:
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//
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//
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// Class Description:
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//
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// General interface to msc models
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// -------------------------------------------------------------------
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//
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#include "
G4VMscModel.hh
"
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#include "
G4SystemOfUnits.hh
"
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#include "
G4ParticleChangeForMSC.hh
"
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#include "
G4TransportationManager.hh
"
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#include "
G4LossTableManager.hh
"
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#include "
G4LossTableBuilder.hh
"
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#include "
G4EmParameters.hh
"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VMscModel::G4VMscModel
(
const
G4String
& nam):
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G4VEmModel
(nam),
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safetyHelper(nullptr),
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ionisation(nullptr),
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facrange(0.04),
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facgeom(2.5),
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facsafety(0.6),
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skin(1.0),
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dtrl(0.05),
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lambdalimit(1.*CLHEP::
mm
),
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geomMin(1.
e
-6*CLHEP::
mm
),
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geomMax(1.e50*CLHEP::
mm
),
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fDisplacement(0.,0.,0.),
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steppingAlgorithm(
fUseSafety
),
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samplez(
false
),
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latDisplasment(
true
)
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{
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dedx
= 2.0*
CLHEP::MeV
*
CLHEP::cm2
/
CLHEP::g
;
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localrange
=
DBL_MAX
;
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localtkin
= 0.0;
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currentPart
=
nullptr
;
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SetUseBaseMaterials
(
false
);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VMscModel::~G4VMscModel
()
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{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ParticleChangeForMSC
*
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G4VMscModel::GetParticleChangeForMSC
(
const
G4ParticleDefinition
*
p
)
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{
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// recomputed for each new run
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if
(!
safetyHelper
) {
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safetyHelper
=
G4TransportationManager::GetTransportationManager
()
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->
GetSafetyHelper
();
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safetyHelper
->
InitialiseHelper
();
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}
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G4ParticleChangeForMSC
* change =
nullptr
;
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if
(
pParticleChange
) {
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change =
static_cast<
G4ParticleChangeForMSC
*
>
(
pParticleChange
);
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}
else
{
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change =
new
G4ParticleChangeForMSC
();
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}
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if
(p) {
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// table is never built for GenericIon
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if
(p->
GetParticleName
() ==
"GenericIon"
) {
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if
(
xSectionTable
) {
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xSectionTable
->
clearAndDestroy
();
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delete
xSectionTable
;
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xSectionTable
=
nullptr
;
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}
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// table is always built for low mass particles
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}
else
if
(p->
GetPDGMass
() < 4.5*
GeV
||
ForceBuildTableFlag
()) {
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G4EmParameters
* param =
G4EmParameters::Instance
();
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idxTable
= 0;
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G4LossTableBuilder
* builder =
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G4LossTableManager::Instance
()->
GetTableBuilder
();
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if
(
IsMaster
()) {
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G4double
emin
=
std::max
(
LowEnergyLimit
(),
LowEnergyActivationLimit
());
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G4double
emax
=
std::min
(
HighEnergyLimit
(),
HighEnergyActivationLimit
());
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emin =
std::max
(emin, param->
MinKinEnergy
());
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emax =
std::min
(emax, param->
MaxKinEnergy
());
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if
(emin < emax) {
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xSectionTable
= builder->
BuildTableForModel
(
xSectionTable
,
this
, p,
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emin, emax,
true
);
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}
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}
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}
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}
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return
change;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void
G4VMscModel::InitialiseParameters
(
const
G4ParticleDefinition
*
part
)
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{
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if
(
IsLocked
()) {
return
; }
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G4EmParameters
* param =
G4EmParameters::Instance
();
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if
(
std::abs
(part->
GetPDGEncoding
()) == 11) {
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steppingAlgorithm
= param->
MscStepLimitType
();
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facrange
= param->
MscRangeFactor
();
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latDisplasment
= param->
LateralDisplacement
();
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}
else
{
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steppingAlgorithm
= param->
MscMuHadStepLimitType
();
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facrange
= param->
MscMuHadRangeFactor
();
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latDisplasment
= param->
MuHadLateralDisplacement
();
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}
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skin
= param->
MscSkin
();
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facgeom
= param->
MscGeomFactor
();
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facsafety
= param->
MscSafetyFactor
();
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lambdalimit
= param->
MscLambdaLimit
();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void
G4VMscModel::SampleSecondaries
(std::vector<G4DynamicParticle*>*,
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const
G4MaterialCutsCouple
*,
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const
G4DynamicParticle
*,
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G4double
,
G4double
)
164
{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
geant4
tree
geant4-10.6-release
source
processes
electromagnetic
utils
src
G4VMscModel.cc
Built by
Jin Huang
. updated:
Wed Jun 29 2022 17:25:36
using
1.8.2 with
ECCE GitHub integration