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source
processes
hadronic
processes
src
G4UCNLoss.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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// $Id: G4UCNLoss.cc 69576 2013-05-08 13:48:13Z gcosmo $
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//
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// Ultra Cold Neutron Loss Class Implementation
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//
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// File: G4UCNLoss.cc
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// Description: Discrete Process -- Loss of UCN
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// energy-independent loss cross section inside a material
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// Version: 1.0
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// Created: 2014-05-05
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// Author: Peter Gumplinger
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// Adopted from: UCN simple absorption, Peter Fierlinger 7.9.04
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// Marcin Kuzniaka 21.4.06
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// Updated:
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// mail: gum@triumf.ca
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//
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#include "
G4UCNProcessSubType.hh
"
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#include "
G4UCNLoss.hh
"
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#include "
G4SystemOfUnits.hh
"
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#include "
G4PhysicalConstants.hh
"
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// Class Implementation
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// Operators
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// G4UCNLoss::operator=(const G4UCNLoss &right)
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// {
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// }
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// Constructors
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G4UCNLoss::G4UCNLoss
(
const
G4String
& processName,
G4ProcessType
type)
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:
G4VDiscreteProcess
(processName, type)
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{
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if
(
verboseLevel
>0)
G4cout
<<
GetProcessName
() <<
" is created "
<<
G4endl
;
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SetProcessSubType
(
fUCNLoss
);
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}
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// G4UCNLoss::G4UCNLoss(const G4UCNLoss &right)
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// {
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// }
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// Destructors
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G4UCNLoss::~G4UCNLoss
(){}
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// Methods
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// PostStepDoIt
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// -------------
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G4VParticleChange
*
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G4UCNLoss::PostStepDoIt
(
const
G4Track
& aTrack,
const
G4Step
& aStep)
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{
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aParticleChange
.
Initialize
(aTrack);
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aParticleChange
.
ProposeTrackStatus
(
fStopAndKill
);
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if
(
verboseLevel
>0)
G4cout
<<
"\n** UCN lost! **"
<<
G4endl
;
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return
G4VDiscreteProcess::PostStepDoIt
(aTrack, aStep);
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}
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// GetMeanFreePath
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// ---------------
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G4double
G4UCNLoss::GetMeanFreePath
(
const
G4Track
& aTrack,
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G4double
,
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G4ForceCondition
* )
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{
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G4double
AttenuationLength =
DBL_MAX
;
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const
G4Material
* aMaterial = aTrack.
GetMaterial
();
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G4MaterialPropertiesTable
* aMaterialPropertiesTable =
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aMaterial->
GetMaterialPropertiesTable
();
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G4double
crossect = 0.0;
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if
(aMaterialPropertiesTable) {
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crossect = aMaterialPropertiesTable->
GetConstProperty
(
"LOSSCS"
);
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// if (crossect == 0.0)
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// G4cout << "No Loss Cross Section specified" << G4endl;
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}
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// else G4cout << "No Loss Cross Section specified" << G4endl;
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if
(crossect) {
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// Calculate a UCN absorption length for this cross section
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G4double
density = aMaterial->
GetTotNbOfAtomsPerVolume
();
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// Calculate cross section for a constant loss
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crossect *=
barn
;
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// Attenuation length
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AttenuationLength = 1./density/crossect;
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}
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return
AttenuationLength;
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}
G4PhysicalConstants.hh
G4MaterialPropertiesTable::GetConstProperty
G4double GetConstProperty(const char *key) const
Definition:
G4MaterialPropertiesTable.cc:203
fUCNLoss
Definition:
G4UCNProcessSubType.hh:46
G4VDiscreteProcess
Definition:
G4VDiscreteProcess.hh:58
G4UCNLoss.hh
G4endl
#define G4endl
Definition:
G4ios.hh:61
G4Material
Definition:
G4Material.hh:121
fStopAndKill
Definition:
G4TrackStatus.hh:56
G4String
Definition:
examples/extended/parallel/TopC/ParN02/AnnotatedFiles/G4String.hh:45
G4VDiscreteProcess::PostStepDoIt
virtual G4VParticleChange * PostStepDoIt(const G4Track &, const G4Step &)
Definition:
G4VDiscreteProcess.cc:112
G4VParticleChange
Definition:
G4VParticleChange.hh:94
G4VProcess::aParticleChange
G4ParticleChange aParticleChange
Definition:
G4VProcess.hh:289
G4double
double G4double
Definition:
G4Types.hh:76
G4ParticleChange::Initialize
virtual void Initialize(const G4Track &)
Definition:
G4ParticleChange.cc:228
G4Track
Definition:
G4Track.hh:76
G4ProcessType
G4ProcessType
Definition:
G4ProcessType.hh:43
G4SystemOfUnits.hh
G4VProcess::GetProcessName
const G4String & GetProcessName() const
Definition:
G4VProcess.hh:411
G4Step
Definition:
G4Step.hh:76
G4Track::GetMaterial
G4Material * GetMaterial() const
G4MaterialPropertiesTable
Definition:
G4MaterialPropertiesTable.hh:71
G4UCNLoss::~G4UCNLoss
virtual ~G4UCNLoss()
Definition:
G4UCNLoss.cc:84
G4VProcess::verboseLevel
G4int verboseLevel
Definition:
G4VProcess.hh:371
G4UCNLoss::G4UCNLoss
G4UCNLoss(const G4String &processName="UCNLoss", G4ProcessType type=fUCN)
Definition:
G4UCNLoss.cc:68
barn
static constexpr double barn
Definition:
G4SIunits.hh:105
G4VProcess::SetProcessSubType
void SetProcessSubType(G4int)
Definition:
G4VProcess.hh:435
G4ForceCondition
G4ForceCondition
Definition:
G4ForceCondition.hh:49
G4cout
G4GLOB_DLL std::ostream G4cout
G4Material::GetTotNbOfAtomsPerVolume
G4double GetTotNbOfAtomsPerVolume() const
Definition:
G4Material.hh:210
G4UCNLoss::PostStepDoIt
G4VParticleChange * PostStepDoIt(const G4Track &aTrack, const G4Step &aStep)
Definition:
G4UCNLoss.cc:94
DBL_MAX
#define DBL_MAX
Definition:
templates.hh:83
G4UCNProcessSubType.hh
G4VParticleChange::ProposeTrackStatus
void ProposeTrackStatus(G4TrackStatus status)
G4UCNLoss::GetMeanFreePath
G4double GetMeanFreePath(const G4Track &aTrack, G4double, G4ForceCondition *condition)
Definition:
G4UCNLoss.cc:108
G4Material::GetMaterialPropertiesTable
G4MaterialPropertiesTable * GetMaterialPropertiesTable() const
Definition:
G4Material.hh:252
다음에 의해 생성됨 :
1.8.5